[bpt/guile.git] / libguile / ChangeLog

2008-02-16  Ludovic Courtès  <ludo@gnu.org>

        * gc_os_dep.c: Add NetBSD/alpha support.  Patch by Greg Troxel
        <gdt@ir.bbn.com>.

2008-02-12  Ludovic Courtès  <ludo@gnu.org>

        * guile-snarf.in (tempdir): Honor `$TMPDIR'.

2008-02-11  Neil Jerram  <neil@ossau.uklinux.net>

        * numbers.c (SCM_COMPLEX_VALUE): Use GUILE_I instead of _Complex_I
        directly, and only if GUILE_I was defined by the configure step.
        (scm_log, scm_log10, scm_exp, scm_sqrt): Use SCM_COMPLEX_VALUE
        code only if SCM_COMPLEX_VALUE is defined.

2008-02-07  Ludovic Courtès  <ludo@gnu.org>

        Fix bug #21378.
        Thanks to David Diffenbaugh <davediff@nbcs.rutgers.edu>.

        * read.c (scm_read_quote): Don't use `__FUNCTION__' since it is
        not supported by Sun CC on Solaris 9.
        (scm_read_keyword): Likewise.
        * strings.c (scm_take_locale_stringn): Remove
        `SCM_C_INLINE_KEYWORD' to allow compilation with Sun CC.

2008-02-07  Julian Graham  <joolean@gmail.com>

        * threads.c (do_thread_exit, scm_cancel_thread, 
        scm_set_thread_cleanup_x, scm_thread_cleanup): Lock on thread-specific 
        admin mutex instead of `thread_admin_mutex'.
        * threads.h (scm_i_thread)[admin_mutex]: New field.
        * throw.c (make_jmpbuf): Don't enter critical section during thread
        spawn -- there is a possibility of deadlock if other threads are
        exiting.
        
2008-02-06  Neil Jerram  <neil@ossau.uklinux.net>

        * gc-malloc.c (scm_gc_malloc): Return NULL if requested size is 0.
        (scm_gc_free): Don't call `free' if mem is NULL.

2008-02-06  Ludovic Courtès  <ludo@gnu.org>

        * numbers.c (scm_i_mkbig, scm_i_long2big, scm_i_ulong2big,
        scm_i_clonebig, scm_i_bigcmp, scm_i_dbl2big, scm_i_dbl2num,
        scm_i_normbig): Remove `SCM_C_INLINE_KEYWORD' since these are
        declared as `extern' in `numbers.h'.  This precluded compilation
        on Solaris 9 with Sun CC (reported by David Halik
        <dhalik@nbcs.rutgers.edu>).

2008-02-05  Neil Jerram  <neil@ossau.uklinux.net>

        * fports.c (fport_seek): Make dependent on GUILE_USE_64_CALLS.

        * _scm.h: Make definition of CHOOSE_LARGEFILE depend on
        GUILE_USE_64_CALLS.

2008-02-01  Neil Jerram  <neil@ossau.uklinux.net>

        * modules.c (the_root_module): Moved before scm_current_module.
        (scm_current_module): Return the root module if `the-module' fluid
        gives #f.

2008-01-22  Neil Jerram  <neil@ossau.uklinux.net>

        * COPYING: Removed.

        * __scm.h, _scm.h, weaks.c: Update copyright statement to LGPL.

2008-01-18  Neil Jerram  <neil@ossau.uklinux.net>

        * hashtab.c (scm_hash_fn_create_handle_x): If supplied assoc_fn
        returns neither a pair nor #f, signal a wrong-type-arg error.
        (Thanks to Gregory Marton for reporting this.)

2007-12-29  Neil Jerram  <neil@ossau.uklinux.net>

        * gc.c (mark_gc_async): Change "func_data" to "fn_data", to avoid
        clash with AIX header file.
        * hooks.c (scm_c_hook_add, scm_c_hook_remove): Same again.
        * hooks.h (scm_t_c_hook_function, scm_c_hook_add,
        scm_c_hook_remove): Same again.

2007-12-08  Ludovic Courtès  <ludo@gnu.org>

        * __scm.h (SCM_EXPECT, SCM_LIKELY, SCM_UNLIKELY): New macros.
        (SCM_ASSERT, SCM_ASSERT_TYPE, SCM_ASRTGO, SCM_GASSERT0,
        SCM_GASSERT1, SCM_GASSERT2, SCM_GASSERTn): Use them.
        * eval.c (ASSERT_SYNTAX, ASSERT_SYNTAX_2): Likewise.
        * eval.i.c (CEVAL): Use branch prediction hints for syntax
        errors, wrong number of arguments and similar.
        * numbers.c (scm_sum): Use `SCM_LIKELY' for the sum of two
        immediate numbers.
        (scm_difference, scm_product, scm_i_divide): Likewise.
        * validate.h (SCM_ASSERT_RANGE): Use `SCM_UNLIKELY'.

2007-12-04  Ludovic Courtès  <ludo@gnu.org>

        * ports.c (scm_c_read): Validate PORT as an open input port.
        (scm_c_write): Validate PORT as an open output port.

        * socket.c (scm_accept): Leave guile mode using
        `scm_std_select ()' before calling `accept(2)'.  Reported by
        dskr <dskr@mac.com>.

2007-10-27  Ludovic Courtès  <ludo@gnu.org>

        * fports.c (scm_i_evict_port): Expect a port, rather than a pair
        containing the port.  Fixes a bug in the new port table (2007-08-26).
        (scm_evict_ports): Use `scm_c_port_for_each ()'.

2007-10-21  Neil Jerram  <neil@ossau.uklinux.net>

        * eval.c (unmemoize_delay): Extend the environment before
        unmemoizing the promise thunk.  This fixes a segmentation fault
        reported by Frank Schwidom.

2007-10-20  Julian Graham  <joolean@gmail.com>

        Add support for thread cancellation and user-defined thread
        cleanup handlers.  Small rework by Ludovic Courtès.

        * null-threads.h (scm_i_pthread_cancel,
        scm_i_pthread_cleanup_push, scm_i_pthread_cleanup_pop): New.
        * pthread-threads.h (scm_i_pthread_cancel,
        scm_i_pthread_cleanup_push, scm_i_pthread_cleanup_pop): New.
        * scmsigs.c (scm_i_signal_delivery_thread,
        signal_delivery_thread_mutex): New.
        (signal_delivery_thread): Leave when `read_without_guile ()'
        returns zero.
        (start_signal_delivery_thread): Acquire SIGNAL_DELIVERY_THREAD
        before spawning the thread.  Initialize
        SCM_I_SIGNAL_DELIVERY_THREAD.
        (ensure_signal_delivery_thread): Renamed to...
        (scm_i_ensure_signal_delivery_thread): this.
        (scm_i_close_signal_pipe): New.
        * scmsigs.h: Updated.
        * threads.c (thread_mark): Mark `t->cleanup_handler'.
        (guilify_self_1): Initialize `t->cleanup_handler' and
        `t->canceled'.
        (do_thread_exit): Invoke `t->cleanup_handler'.
        (on_thread_exit): Call `scm_i_ensure_signal_delivery_thread ()'.
        Call `scm_i_close_signal_pipe ()' when the next-to-last thread
        vanishes.
        (scm_leave_guile_cleanup): New.
        (scm_i_with_guile_and_parent): Use `scm_i_pthread_cleanup_push ()' 
        and `scm_leave_guile_cleanup ()' to leave guile mode, rather
        than call `scm_leave_guile ()' after FUNC.
        (scm_cancel_thread, scm_set_thread_cleanup_x,
        scm_threads_cleanup): New.
        (scm_all_threads): Remove SCM_I_SIGNAL_DELIVERY_THREAD from the
        returned list.
        * threads.h (scm_i_thread)[cleanup_handler, canceled]: New
        fields.
        Add declarations of new functions.
        
2007-10-17  Ludovic Courtès  <ludo@gnu.org>

        * read.c (CHAR_IS_BLANK_): Add `\r' (ASCII 0x0d).  This fixes a
        regression compared to 1.8.2.  Reported by Puneet
        <schemer@gmail.com>.

2007-10-10  Ludovic Courtès  <ludo@gnu.org>

        * pthread-threads.h (SCM_I_PTHREAD_MUTEX_INITIALIZER): Check
        `SCM_NEED_BRACES_ON_PTHREAD_MUTEX_INITIALIZER'.
        * gen-scmconfig.h.in
        (SCM_I_GSC_NEED_BRACES_ON_PTHREAD_MUTEX_INITIALIZER): New.
        * gen-scmconfig.c (main): Define
        `SCM_NEED_BRACES_ON_PTHREAD_MUTEX_INITIALIZER'.

2007-10-04  Ludovic Courtès  <ludo@gnu.org>

        * i18n.c (scm_make_locale)[!USE_GNU_LOCALE_API]: Don't call
        `leave_locale_section ()' on failure of
        `enter_locale_section ()' since the mutex is not held and locale
        settings are unchanged.
        (scm_nl_langinfo)[!USE_GNU_LOCALE_API]: Use
        `restore_locale_settings ()' instead of `leave_locale_section ()' 
        since the mutex is not held.
        
2007-10-02  Ludovic Courtès  <ludo@gnu.org>

        * threads.c (on_thread_exit): Don't call `scm_leave_guile ()'
        since we're already in non-guile mode.  Reported by Greg Toxel
        for NetBSD.

2007-10-01  Ludovic Courtès  <ludo@gnu.org>

        * ports.c (flush_output_port): Expect directly a port instead of
        a pair.  Fixes a bug in the new port table (2007-08-26).

2007-09-11  Kevin Ryde  <user42@zip.com.au>

        * posix.c (scm_putenv): Confine the putenv("NAME=") bit to mingw, use
        putenv("NAME") as the fallback everywhere else.  In particular this is
        needed for solaris 9.  Reported by Frank Storbeck.
        
2007-09-03  Ludovic Courtès  <ludo@gnu.org>

        * read.c (flush_ws): Handle SCSH block comments.

2007-09-03  Ludovic Courtès  <ludo@gnu.org>

        Fix alignment issues which showed up at least on SPARC.

        * socket.c (scm_t_max_sockaddr, scm_t_getsockopt_result): New.
        (scm_inet_pton): Change DST to `scm_t_uint32' for correct
        alignment.
        (scm_getsockopt): Change OPTVAL to `scm_t_getsockopt_result' for
        correct alignment.
        (_scm_from_sockaddr): Change ADDRESS to `scm_t_max_sockaddr *'.
        (scm_from_sockaddr): Cast ADDRESS to `scm_t_max_sockaddr *'.
        (MAX_SIZE_UN, MAX_SIZE_IN6): Removed.
        (scm_accept, scm_getsockname, scm_getpeername, scm_recvfrom):
        Use `scm_t_max_sockaddr' instead of "char max_addr[MAX_ADDR_SIZE]".

2007-09-03  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_log): Test HAVE_CLOG as well as HAVE_COMPLEX_DOUBLE
        before using clog().  It's possible for gcc to provide the "complex
        double" type, but for the system not to have the complex funcs.
        (scm_exp): Ditto HAVE_CEXP for cexp().
        (clog, cexp, carg): Remove fallback definitions.  These only
        duplicated the code within scm_log and scm_exp, and the latter have to
        exist for the case when there's no "complex double".  So better just
        fix up the conditionals selecting between the complex funcs and plain
        doubles than worry about fallbacks.

2007-09-02  Ludovic Courtès  <ludo@gnu.org>

        * socket.c (scm_make_socket_address): Free C_ADDRESS after use.
        This fixes a memory leak.

2007-08-26  Han-Wen Nienhuys  <hanwen@lilypond.org>

        * fports.c gc-card.c gc.c gc.h ioext.c ports.c ports.h weaks.h
        gc.c: replace port table with weak hash table. This simplifies
        memory management, and fixes freed cells appearing in
        port-for-each output.

        * init.c (cleanup_for_exit): abort cleanup if init_mutex is still
        held.

2007-08-23  Ludovic Courtès  <ludo@gnu.org>

        * read.c (scm_read_quote): Record position and copy source
        expression when asked to.  Reported by Kevin.

        * stime.c: Define `_REENTRANT' only if not already defined.

2007-08-21  Kevin Ryde  <user42@zip.com.au>

        * gc-card.c (scm_i_card_statistics): Record scm_tc7_number types as
        tc16 values so big, real, complex and fraction can be distinguished.

        (scm_i_tag_name): Return "number" for scm_tc7_number, not NULL.  NULL
        was making numbers come out as "type 23" in gc-live-object-stats.
        Fix tests of the tc16 number types, they were checked under
        scm_tc7_number, but the values went down the tag>=255 smob case.
        Put smob case under scm_tc7_smob instead of using tag>=255, per
        recommendation in comments with scm_tc7_smob to use symbolic values. 
        Use SCM_TC2SMOBNUM to extract scm_smobs index, instead of explicit
        code.  Lose some unnecessary "break" statements.

        (scm_i_card_statistics): Use scm_hashq_create_handle_x and modify the
        element returned, rather than two lookups scm_hashq_ref and
        scm_hashq_set_x.

2007-08-17  Kevin Ryde  <user42@zip.com.au>

        * stime.c: Add #define _REENTRANT, to get gmtime_r() prototype on
        solaris 2.6.  Reported by anirkko.

2007-07-29  Ludovic Courtès  <ludo@gnu.org>

        * Makefile.am (INCLUDES): Added Gnulib includes.
        (gnulib_library): New.
        (libguile_i18n_v_@LIBGUILE_I18N_MAJOR@_la_LIBADD): Added
        `$(gnulib_library)'.
        (libguile_la_LIBADD): Likewise.

        * posix.c: Don't define `_GNU_SOURCE' since `gl_EARLY' arranges
        to define it when available.
        * srfi-14.c: Likewise.
        * i18n.c: Likewise.  Include Gnulib's <alloca.h>
        * eval.c: Include Gnulib's <alloca.h>.
        * filesys.c: Likewise.
        * read.c: Don't include <strings.h> and don't provide an
        `strncasecmp ()' replacement; use Gnulib's <string.h> and
        `strncasecmp ()' instead.

2007-07-25  Ludovic Courtès  <ludo@gnu.org>

        * eval.c (macroexp): When `scm_ilength (res) <= 0', return
        immediately.  This used to produce a circular memoized
        expression, e.g., for `(set (quote x) #t)'.

2007-07-22  Ludovic Courtès  <ludo@gnu.org>

        Overhauled the reader, making it faster.

        * gdbint.c (tok_buf, tok_buf_mark_p): Removed.
        (gdb_read): Don't use a token buffer.  Use `scm_read ()' instead
        of `scm_lreadr ()'.

        * read.c: Overhauled.  No longer use a token buffer.  Use a
        on-stack C buffer in the common case and use Scheme strings when
        larger buffers are needed.
        * read.h (scm_grow_tok_buf, scm_flush_ws, scm_casei_streq,
        scm_lreadr, scm_lreadrecparen): Removed.
        (scm_i_input_error): Marked as `SCM_NORETURN'.

2007-07-15  Ludovic Courtès  <ludo@gnu.org>

        * script.c (scm_compile_shell_switches): Updated copyright year.

2007-07-11  Ludovic Courtès  <ludo@gnu.org>

        * goops.c (scm_sys_method_more_specific_p): Added docstring.
        Make sure LEN is greater than or equal to the minimum length of
        specializers of M1 and M2.  This fixes a segfault later on in
        `more_specificp ()' if TARGS is too small.  Reported by Marco
        Maggi <marco.maggi-ipsu@poste.it>.

2007-06-26  Ludovic Courtès  <ludo@gnu.org>

        * fluids.c (next_fluid_num): When growing ALLOCATED_FLUIDS, make
        sure to free the previous array after the new one has been
        installed.  This leak is made visible by running
        "(define l (map (lambda (i) (make-fluid)) (iota 255)))"
        from the REPL within Valgrind.

2007-06-12  Ludovic Courtès  <ludo@chbouib.org>

        * socket.c (scm_inet_ntop): In the `AF_INET' case, declare `addr4'
        as an `scm_t_uint32' rather than re-using `addr6'.  This fixes a
        bus error on SPARC (and possibly others) due to unaligned access.

2007-06-07  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * posix.c (scm_ttyname): Check whether RESULT is NULL before
        making a string from it (reported by Dan McMahill).  Don't call
        `scm_from_locale_string ()' before the mutex is released.

2007-05-26  Ludovic Courtès  <ludo@chbouib.org>

        * eval.c (scm_m_define): Updated comment.  Changed order for value
        evaluation and `scm_sym2var ()' call, which is perfectly valid per
        R5RS.  This reverts the change dated 2004-04-22 by Dirk Herrmann.

2007-05-05  Ludovic Courtès  <ludo@chbouib.org>

        Implemented lazy duplicate binding handling.

        * modules.c (scm_export): Renamed to...
        (scm_module_export): This.  Now public.
        (module_variable): Removed.
        (default_duplicate_binding_procedures_var): New variable.
        (default_duplicate_binding_handlers, resolve_duplicate_binding,
        module_imported_variable, scm_module_local_variable,
        scm_module_variable): New functions.
        (scm_module_import_interface): Rewritten.
        (scm_module_reverse_lookup): Exported as a Scheme function.
        * modules.h (scm_module_index_duplicate_handlers,
        scm_module_index_import_obarray): New macros.
        (scm_module_variable, scm_module_local_variable,
        scm_module_export): New declarations.

2007-04-17  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * numbers.c: Commented out trailing `HAVE_COMPLEX_DOUBLE' after
        `#endif'.  Use `#ifndef HAVE_XXX' rather than `#if !HAVE_XXX'.

2007-04-09  Han-Wen Nienhuys  <hanwen@lilypond.org>

        * numbers.c (carg): provide carg, cexp, clog in case they are
        missing.

2007-03-12  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * i18n.c (scm_nl_langinfo): `#ifdef'd uses of `GROUPING',
        `FRAC_DIGITS', etc., which are GNU extensions.  Reported by
        Steven Wu.

2007-03-08  Kevin Ryde  <user42@zip.com.au>

        * struct.c, struct.h (scm_make_vtable): New function, providing
        `make-vtable'.
        * stacks.c (scm_init_stacks): Use it.

2007-03-06  Kevin Ryde  <user42@zip.com.au>

        * struct.c (scm_make_struct): Check for R,W,O at end of layout when
        allocating a tail array.  If there's no such then those tail fields
        are uninitialized and garbage SCMs there can cause a segv if printed
        (after fetching with struct-ref).

2007-02-22  Kevin Ryde  <user42@zip.com.au>

        * scmsigs.c (scm_sleep): In docstring, cross refence usleep.
        (scm_usleep): Update docstring per manual, cross reference sleep.

        * struct.c (scm_make_struct): Move SCM_CRITICAL_SECTION_END up so that
        scm_struct_init is not within that section.  scm_struct_init can
        thrown an error, which within a critical section results in an
        abort().

2007-02-19  Neil Jerram  <neil@ossau.uklinux.net>

        * Makefile.am (noinst_HEADERS): Add private-options.h, so that it
        is included in the distribution.
        (noinst_HEADERS): And the same for eval.i.c.

2007-01-31  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * i18n.c: Include "libguile/threads.h" and "libguile/posix.h"
        unconditionally.  Include <langinfo.h> and <nl_types.h> when
        available.
        (SCM_I18N_STRINGIFY, SCM_LOCALE_CATEGORY_MASK,
        SCM_LIST_OR_INTEGER_P): New macros.
        (LC_*_MASK): When `USE_GNU_LOCALE_API' is undefined, define them
        as powers of two instead of `(1 << LC_*)'.
        (scm_i_locale_free): New function/macro.
        (scm_global_locale): New global variable.
        (smob_locale_free): Use `scm_i_locale_free ()'.
        (smob_locale_mark): Check whether the SMOB is `%global-locale'.
        (get_current_locale_settings): Return `EINVAL' instead of `errno'
        when `setlocale' fails.
        (restore_locale_settings): Likewise.
        (install_locale_categories): Likewise.
        (install_locale): Likewise.  Stop the locale stack traversal when
        all categories have been handled.
        (get_current_locale, category_to_category_mask,
        category_list_to_category_mask): New function.
        (scm_make_locale): Use them.  Accept both lists of `LC_*' values
        and single `LC_*' values as the first argument.  Handle the case
        where BASE_LOCALE is `%global-locale'.  When `USE_GNU_LOCALE_API',
        duplicate C_BASE_LOCALE before using it.
        (scm_nl_langinfo, define_langinfo_items): New functions.
        (scm_init_i18n): When `HAVE_NL_LANGINFO', add feature
        `nl-langinfo' and invoke `define_langinfo_items ()'.
        * i18n.h (scm_global_locale, scm_nl_langinfo): New declarations.
        * posix.c: Include <xlocale.h> when available.
        (scm_i_locale_mutex): Always define it.  Statically initialized.
        (scm_set_locale): Invoke `scm_i_to_lc_category ()' before
        acquiring the locale mutex.
        (scm_init_posix): No longer initialize SCM_I_LOCALE_MUTEX here.

2007-01-27  Kevin Ryde  <user42@zip.com.au>

        * ports.c (scm_port_line, scm_set_port_line_x), read.c
        (scm_i_input_error, scm_lreadr, scm_lreadrecparen): Corrections to
        port line number type, should be "long" not "int", as per line_number
        field of scm_t_port.  (Makes a difference only on 64-bit systems, and
        only then for a linenum above 2Gig.)

2007-01-25  Han-Wen Nienhuys  <hanwen@lilypond.org>

        * vector.c: remove comment as per kryde's request.

2007-01-25  Kevin Ryde  <user42@zip.com.au>

        * sort.c (scm_stable_sort): Return empty list for input empty list, as
        done in guile 1.6 and as always done by plain `sort'.  Was falling
        through to SCM_WRONG_TYPE_ARG.  Reported by Ales Hvezda.

2007-01-22  Han-Wen Nienhuys  <hanwen@lilypond.org>

        * vectors.c (s_scm_vector_move_right_x): complain about naming.

        * srcprop.c: regularize comments.

        * eval.c: remove superfluous ifndef DEVAL.

        * private-options.h: idem.

        * eval.i.c: copyright nitpicking.

        * eval.c: distangle. move duplicate code to eval.i.c and include
        twice.

        * eval.i.c: new file.

        * backtrace.c, debug.c, debug.h, deprecation.c, eq.c, eval.c
        eval.h, gsubr.c, init.c, macros.c, print.c, print.h, read.c,
        read.h, stacks.c, symbols.c, throw.c: use private-options.h

        * private-options.h: new file: contain hardcoded option
        definitions.

        * private-gc.h: add FSF header.

2007-01-19  Han-Wen Nienhuys  <hanwen@lilypond.org>

        * debug.h (SCM_RESET_DEBUG_MODE): switch to debugging if
        memoize-symbol is set.

        * eval.h (SCM_MEMOIZE_HDLR): add macros for memoize symbol trap.

        * eval.c (CEVAL): add memoize_symbol trap.

        * options.c (scm_options_try): new function. This allows error
        reporting before changing options in a critical section.

        * srcprop.c: use double cell for storing source-properties.  Put
        filename in the plist, and share between srcprops if possible.
        Remove specialized storage.

        * srcprop.h: remove macros without SCM_ prefix from
        interface. Remove specialized storage/type definitions.

        * read.c: idem.

        * print.c: idem.

        * eval.c: terminate option lists with 0.

        * options.c: remove n (for length) from scm_option_X
        functions. Detect option list length by looking for NULL name.

2007-01-19  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * struct.c (scm_i_struct_equalp): Skip comparison if both FIELD1
        is equal to S1 and FIELD2 is equal to S2.  This avoids infinite
        recursion when comparing `s' fields, as the REQUIRED_VTABLE_FIELDS
        added by `make-vtable-vtable'.  Reported by Marco Maggi.
        
2007-01-18  Han-Wen Nienhuys  <hanwen@lilypond.org>

        * throw.c (scm_ithrow): more refined error message: print symbols
        too.

2007-01-16  Kevin Ryde  <user42@zip.com.au>

        * feature.c, feature.h (scm_set_program_arguments_scm): New function,
        implementing `set-program-arguments'.

        * filesys.c (scm_init_filesys): Use scm_from_int rather than
        scm_from_long for O_RDONLY, O_WRONLY, O_RDWR, O_CREAT, O_EXCL,
        O_NOCTTY, O_TRUNC, O_APPEND, O_NONBLOCK, O_NDELAY, O_SYNC and
        O_LARGEFILE.  These are all int not long, per arg to open().
        (scm_init_filesys): Use scm_from_int rather than scm_from_long for
        F_DUPFD, F_GETFD, F_SETFD, F_GETFL, F_SETFL, F_GETOWN, F_SETOWN, these
        are all ints (per command arg to fcntl).  Likewise FD_CLOEXEC which is
        an int arg to fcntl.

        * posix.c (scm_putenv): Correction to "len" variable, was defined only
        for __MINGW32__ but used under any !HAVE_UNSETENV (such as solaris).
        Move it to where it's used.  Reported by Hugh Sasse.

        * regex-posix.c (scm_regexp_exec): Remove SCM_CRITICAL_SECTION_START
        and SCM_CRITICAL_SECTION_END, believe not needed.  Their placement
        meant #\nul in the input (detected by scm_to_locale_string) and a bad
        flags arg (detected by scm_to_int) would throw from a critical
        section, causing an abort().

        * regex-posix.c (scm_init_regex_posix): Use scm_from_int for
        REG_BASIC, REG_EXTENDED, REG_ICASE, REG_NEWLINE, REG_NOTBOL,
        REG_NOTEOL; they're all ints not longs (per args to regcomp and
        regexec).

2007-01-10  Han-Wen Nienhuys  <hanwen@lilypond.org>

        * throw.c (scm_ithrow): print out key symbol and string arguments
        when error happens inside a critical section, and document why.

2007-01-06  Han-Wen Nienhuys  <hanwen@lilypond.org>

        * read.c (s_scm_read_hash_extend): document #f argument to
        read-hash-extend.

2007-01-04  Kevin Ryde  <user42@zip.com.au>

        * deprecated.h (scm_create_hook), version.h.in (scm_major_version,
        scm_minor_version, scm_micro_version, scm_effective_version,
        scm_version, scm_init_version): Use SCM_API instead of just extern,
        for the benefit of mingw.  Reported by Cesar Strauss.

2007-01-03  Han-Wen Nienhuys  <hanwen@lilypond.org>

        * gc.c (s_scm_gc_stats): return an entry for total-cells-allocated
        too.
        (gc_update_stats): update scm_gc_cells_allocated_acc too.

2006-12-27  Kevin Ryde  <user42@zip.com.au>

        * threads.c (get_thread_stack_base): In mingw with pthreads we can use
        the basic scm_get_stack_base.  As advised by Nils Durner.

        * threads.c (get_thread_stack_base): Add a version using
        pthread_get_stackaddr_np (when available), for the benefit of MacOS.
        As advised by Heikki Lindholm.

        * scmsigs.c (signal_delivery_thread): Restrict scm_i_pthread_sigmask
        to HAVE_PTHREAD_SIGMASK, it doesn't exist on mingw.  Reported by Nils
        Durner.

2006-12-24  Kevin Ryde  <user42@zip.com.au>

        * posix.c (scm_kill): When only raise() is available, throw an ENOSYS
        error if pid is not our own process, instead of silently doing nothing.

        * print.c (scm_write, scm_display, scm_write_char): Disable port close
        on EPIPE.  This was previously disabled but introduction of HAVE_PIPE
        check in configure.in unintentionally enabled it.  Believe that
        testing errno after scm_prin1 or scm_putc is bogus, a long ago error
        can leave errno in that state.  popen.test "no duplicates" output test
        provoked that.

2006-12-23  Han-Wen Nienhuys  <hanwen@lilypond.org>

        * numbers.c (scm_i_fraction_reduce): move logic into
        scm_i_make_ratio(), so fractions are only read.
        scm_i_fraction_reduce() modifies a fraction when reading it.  A
        race condition might lead to fractions being corrupted by reading
        them concurrently.

        Also, the REDUCED bit alters the SCM_CELL_TYPE(), making
        comparisons between reduced and unreduced fractions go wrong.
        
        * numbers.h: remove SCM_FRACTION_SET_NUMERATOR,
        SCM_FRACTION_SET_DENOMINATOR, SCM_FRACTION_REDUCED_BIT,
        SCM_FRACTION_REDUCED_SET, SCM_FRACTION_REDUCED_CLEAR,
        SCM_FRACTION_REDUCED.

2006-12-16  Kevin Ryde  <user42@zip.com.au>

        * scmsigs.c (scm_raise): Use raise() rather than kill(), as this is
        more direct for a procedure called raise.
        (kill): Remove mingw fake fallback.

2006-12-15  Kevin Ryde  <user42@zip.com.au>

        * scmsigs.c: Conditionalize process.h, add io.h believe needed for
        _pipe on mingw.

2006-12-14  Kevin Ryde  <user42@zip.com.au>

        * threads.c (thread_print): Cope with the case where pthread_t is a
        struct, as found on mingw.  Can't just cast to size_t for printing.
        Reported by Nils Durner.

        * scmsigs.c: Add <fcntl.h> and <process.h> needed by mingw.  Copy the
        fallback pipe() using _pipe() from posix.c.  Reported by Nils Durner.

2006-12-13  Kevin Ryde  <user42@zip.com.au>

        * eval.c (scm_m_define): Set 'name procedure property on any
        scm_procedure_p, not just SCM_CLOSUREP.  In particular this picks up
        procedures with setters as used in srfi-17.

        * posix.c (scm_crypt): Check for NULL return from crypt(), which the
        linux man page says is a possibility.

2006-12-12  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * libguile/unif.c (read_decimal_integer): Let RESP be SIGN * RES
        instead of RES (reported by Szavai Gyula).  This allows the use of
        negative lower bounds.
        (scm_i_read_array): Make sure LEN is non-negative (reported by
        Szavai Gyula).

        (scm_array_in_bounds_p): Iterate over S instead of always
        comparing indices with the bounds of S[0].  This fixes
        `array-in-bounds?' for arrays with a rank greater than one and
        with different lower bounds for each dimension.

2006-12-05  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_product): For flonum*inum and complex*inum, return
        exact 0 if inum==0.  Already done for inum*flonum and inum*complex,
        and as per R5RS section "Exactness".

2006-12-03  Kevin Ryde  <user42@zip.com.au>

        * Makefile.am (.c.doc): Remove the "test -n" apparently attempting to
        allow $AWK from the environment to override.  It had syntax gremlins,
        and the presence of a $(AWK) variable set by AC_PROG_AWK in the
        Makefile stopped it having any effect.  Use just $(AWK), which can be
        overridden with "make AWK=xxx" in the usual way if desired.

2006-11-29  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * libguile/vectors.c (scm_vector_to_list): Fixed list
        construction: elements were not copied when INC is zero (see
        "shared array" example in `vectors.test').  Reported by
        Szavai Gyula.

2006-11-18  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * Makefile.am (lib_LTLIBRARIES): Added `libguile-i18n-v-XX.la'.
        (libguile_la_SOURCES): Added `gettext.c', removed `i18n.c'.
        (libguile_i18n_v_XX_la_SOURCES, libguile_i18n_v_XX_la_CFLAGS,
        libguile_i18n_v_XX_la_LIBADD, libguile_i18n_v_XX_la_LDFLAGS): New.
        (DOT_X_FILES): Added `gettext.x'.
        (DOT_DOC_FILES): Likewise.
        (EXTRA_libguile_la_SOURCES): Added `locale-categories.h'.
        (modinclude_HEADERS): Added `gettext.h'.
        (EXTRA_DIST): Added `libgettext.h'.

        * gettext.h: Renamed to...
        * libgettext.h: New file.

        * i18n.c: Renamed to...
        * gettext.c: New file.

        * i18n.h: Renamed to...
        * gettext.h: New file.

        * i18n.c, i18n.h, locale-categories.h: New files.

        * init.c: Include "libguile/gettext.h" instead of
        "libguile/i18n.h".
        (scm_i_init_guile): Invoke `scm_init_gettext ()' instead of
        `scm_init_i18n ()'.

        * posix.c: Include "libguile/gettext.h" instead of
        "libguile/i18n.h"  Test `HAVE_NEWLOCALE' and `HAVE_STRCOLL_L'.
        (USE_GNU_LOCALE_API): New macro.
        (scm_i_locale_mutex): New variable.
        (scm_setlocale): Lock and unlock it around `setlocale ()' calls.

        * posix.h: Include "libguile/threads.h".
        (scm_i_locale_mutex): New declaration.

2006-11-17  Neil Jerram  <neil@ossau.uklinux.net>

        * script.c (scm_shell_usage): Note need for subscription to bug-guile@gnu.org.

2006-11-08  Ludovic Courtès  <ludovic.courtes@laas.fr>
        
        * libguile/gc-freelist.c (scm_i_adjust_min_yield): Take two
        "sweep_stats" arguments; use them instead of accessing the global
        variables `scm_gc_cells_collected' and `scm_gc_cells_collected_1'.

        * libguile/gc-segment.c (scm_i_sweep_some_cards): Reset SWEEP
        before each iteration of the loop.
        (scm_i_sweep_some_segments): Reset SWEEP at each iteration.
        (scm_i_get_new_heap_segment): Take an additional argument
        SWEEP_STATS.  Compute MIN_CELLS as a function of it.

        * libguile/gc.c (scm_gc_cells_collected,
        scm_gc_cells_collected_1): Removed.
        (scm_i_gc_sweep_stats, scm_i_gc_sweep_stats_1): New.
        (scm_gc_cells_marked_acc, scm_gc_cells_swept_acc,
        scm_gc_time_taken, scm_gc_mark_time_taken, scm_gc_times,
        scm_gc_cell_yield_percentage, protected_obj_count): Made `static'.
        (scm_gc_stats): Use `scm_i_gc_sweep_stats' instead of
        `scm_gc_cells_(collected|swept)'.
        (gc_update_stats): New.
        (gc_end_stats): Use `scm_i_gc_sweep_stats' and
        `scm_i_gc_sweep_stats_1' instead of the former globals.
        (scm_gc_for_newcell): Invoke `gc_update_stats ()' after each
        `scm_i_sweep_some_segments' call.  This fixes a bug where the GC
        would keep allocating new segments instead of re-using collected
        cells (because `scm_gc_cells_collected' would remain zero).

        * libguile/gc.h (scm_gc_cells_swept, scm_gc_cells_collected,
        scm_gc_cell_yield_percentage): Removed.

        * libguile/private-gc.h (scm_gc_cells_collected_1): Removed.
        (scm_i_adjust_min_yield): Updated.
        (scm_i_get_new_heap_segment): Updated.

2006-11-02  Neil Jerram  <neil@ossau.uklinux.net>

        * modules.c: Correct comment saying that low-level environments
        will be used "in the next release".

        * init.c: Comment out #include of environments.h.
        (scm_i_init_guile): Comment out scm_environments_prehistory() and
        scm_init_environments() calls.

        * Makefile.am (libguile_la_SOURCES): Remove environments.c.
        (DOT_X_FILES): Remove environments.x.
        (DOT_DOC_FILES): Remove environments.doc.
        (modinclude_HEADERS): Remove environments.h.

2006-10-25  Neil Jerram  <neil@ossau.uklinux.net>

        IA64 HP-UX GC patch from Hrvoje Nikšić.  (Thanks!)
        
        * threads.c (SCM_MARK_BACKING_STORE): Use scm_ia64_ar_bsp() and
        scm_ia64_register_backing_store_base() instead of Linux-specific
        implementations.

        * gc.h (scm_ia64_register_backing_store_base, scm_ia64_ar_bsp):
        New declarations.

        * gc.c (__libc_ia64_register_backing_store_base): Declaration
        removed.
        (scm_ia64_register_backing_store_base, scm_ia64_ar_bsp): New, with
        implementations for Linux and HP-UX.

        * coop-pthreads.c (SCM_MARK_BACKING_STORE): Use scm_ia64_ar_bsp()
        and scm_ia64_register_backing_store_base() instead of
        Linux-specific implementations.

        * continuations.h (__libc_ia64_register_backing_store_base):
        Declaration removed.
        (scm_t_contregs): New "fresh" field.

        * continuations.c (ia64_getcontext): Removed.
        (scm_make_continuation): Use continuation fresh field instead of
        interpreting getcontext return values (which isn't portable).  Use
        scm_ia64_ar_bsp() and scm_ia64_register_backing_store_base()
        instead of Linux-specific implementations.
        (copy_stack_and_call): Use scm_ia64_register_backing_store_base()
        instead of Linux-specific implementation.

        * _scm.h (__ia64__): Also detect __ia64.

2006-10-03  Kevin Ryde  <user42@zip.com.au>

        * eval.c (SCM_APPLY): For scm_tc7_subr_2o, throw wrong-num-args on 0
        arguments or 3 or more arguments.  Previously 0 called proc with
        SCM_UNDEFINED, and 3 or more silently used just the first 2.

2006-09-28  Kevin Ryde  <user42@zip.com.au>

        * fports.c, ports.c (ftruncate): Use "HAVE_CHSIZE && ! HAVE_FTRUNCATE"
        for chsize fallback, instead of hard-coding mingw.  Mingw in fact
        supplies ftruncate itself these days.

        * ports.c (fcntl.h): Can include this unconditionally, no need for
        __MINGW32__.

        * ports.c (truncate): Conditionalize on "HAVE_FTRUNCATE && !
        HAVE_TRUNCATE" so as not to hard-code mingw.  Use "const char *" and
        "off_t" for parameters, per usual definition of this function, rather
        than "char *" and "int".  Use ftruncate instead of chsize.  Check for
        error on final close.

2006-09-27  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_log10): Check HAVE_CLOG10, clog10() is not available
        in mingw.

        * posix.c (scm_execl, scm_execlp, scm_execle): Cast "const char *
        const *" for mingw to suppress warnings from gcc (which are errors
        under the configure default -Werror).  Reported by Nils Durner.

2006-09-26  Kevin Ryde  <user42@zip.com.au>

        * _scm.h (scm_to_off64_t, scm_from_off64_t): New macros.
        * fports.c (scm_open_file): Use open_or_open64.
        (fport_seek_or_seek64): New function, adapting fport_seek.
        * fports.c, fports.h (scm_i_fport_seek, scm_i_fport_truncate): New
        functions.
        * ports.c (scm_seek, scm_truncate_file): Use scm_i_fport_seek and
        scm_i_fport_truncate to allow 64-bit seeks and truncates on fports.

        * ports.c (scm_truncate_file): Update docstring per manual.

2006-09-23  Kevin Ryde  <user42@zip.com.au>

        * numbers.c, numbers.h (scm_log, scm_log10, scm_exp, scm_sqrt): New
        functions.

2006-09-20  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * srfi-14.c: Include <config.h>.  Define `_GNU_SOURCE'.
        (make_predset, define_predset, make_strset, define_strset, false,
        true): Removed.
        (SCM_CHARSET_UNSET, CSET_BLANK_PRED, CSET_SYMBOL_PRED,
        CSET_PUNCT_PRED, CSET_LOWER_PRED, CSET_UPPER_PRED,
        CSET_LETTER_PRED, CSET_DIGIT_PRED, CSET_WHITESPACE_PRED,
        CSET_CONTROL_PRED, CSET_HEX_DIGIT_PRED, CSET_ASCII_PRED,
        CSET_LETTER_AND_DIGIT_PRED, CSET_GRAPHIC_PRED, CSET_PRINTING_PRED,
        CSET_TRUE_PRED, CSET_FALSE_PRED, UPDATE_CSET): New macros.
        (define_charset, scm_srfi_14_compute_char_sets): New functions.
        (scm_init_srfi_14): Use `define_charset ()' instead of
        `define_predset ()' and `define_strset ()'.

        * srfi-14.h (scm_c_init_srfi_14): Removed.
        (scm_srfi_14_compute_char_sets): New declaration.

        * posix.h: Include "srfi-14.h".
        (scm_setlocale): Invoke `scm_srfi_14_compute_char_sets ()' after a
        successful `setlocale ()' call.

2006-09-08  Kevin Ryde  <user42@zip.com.au>

        * socket.c (scm_init_socket): Add MSG_DONTWAIT.
        (scm_recvfrom): Update docstring from manual.

2006-08-31  Rob Browning  <rlb@defaultvalue.org>

        * ports.c (scm_c_port_for_each): Add a
        scm_remember_upto_here_1(ports) at the end of the function to fix
        a GC bug.

2006-08-28  Neil Jerram  <neil@ossau.uklinux.net>

        * backtrace.c (scm_display_backtrace_with_highlights): Minor
        improvements to docstring.
        (scm_backtrace_with_highlights): Analogous improvements.

2006-08-12  Kevin Ryde  <user42@zip.com.au>

        * gen-scmconfig.h.in (SCM_I_GSC_NEED_BRACES_ON_PTHREAD_ONCE_INIT):
        New, set from configure.
        * gen-scmconfig.c (SCM_NEED_BRACES_ON_PTHREAD_ONCE_INIT): New output
        to scmconfig.h.
        * pthread-threads.h (SCM_I_PTHREAD_ONCE_INIT): Use
        SCM_NEED_BRACES_ON_PTHREAD_ONCE_INIT to cope with Solaris.
        Reported by Claes Wallin.

2006-08-11  Neil Jerram  <neil@ossau.uklinux.net>

        * stacks.c (scm_last_stack_frame): Correct docstring (returns a
        frame, not a stack).

2006-07-25  Kevin Ryde  <user42@zip.com.au>

        * threads.c (get_thread_stack_base): Restrict HAVE_PTHREAD_GETATTR_NP
        on pthreads version, since pthread_getattr_np not available on solaris
        and macos.  Reported by Claes Wallin.

2006-07-24  Kevin Ryde  <user42@zip.com.au>

        * filesys.c (dirfd): Test with #ifndef rather than HAVE_DIRFD, since
        it's a macro on MacOS X.  Reported by Claes Wallin.

        * posix.c (sethostname): Give prototype if not HAVE_DECL_SETHOSTNAME,
        for the benefit of Solaris 10.  Reported by Claes Wallin.

        * socket.c (scm_htonl, scm_ntohl): Use scm_to_uint32 rather than
        NUM2ULONG, to enforce 32-bit range check on systems with 64-bit long.

2006-07-21  Kevin Ryde  <user42@zip.com.au>

        * eval.c, filesys.c (alloca): Update <alloca.h> etc blob, per current
        autoconf recommendation.  Should fix Solaris 10 reported by Claes
        Wallin.

        * threads.c: Include <string.h>, needed for memset() which is used by
        FD_ZERO() on Solaris 10.  Reported by Claes Wallin.

2006-07-18  Rob Browning  <rlb@defaultvalue.org>

        * continuations.c: Add __attribute__ ((returns_twice)) to the
        ia64_getcontext prototype so that gcc will make the right
        arrangements and avoid an illegal instruction during
        call-with-current-continuation.

2006-07-12  Ludovic Courtès <ludovic.courtes@laas.fr>

        * numbers.c (guile_ieee_init): Use regular ANSI C casts rather
        than C++-style `X_CAST ()'.  Patch posted by by Mike Gran.

2006-07-08  Kevin Ryde  <user42@zip.com.au>

        * environments.c (core_environments_unobserve): Use if/else rather
        than ?: for "SET" bits, avoiding complaints from AIX xlc compiler
        about them not being rvalues.  Reported by Mike Gran.

        * Makefile.am (version.h): Don't use $< in an explicit rule, it's not
        portable and in particular fails on OpenBSD and AIX (see autoconf
        manual too).  Reported by Mike Gran.

2006-06-25  Kevin Ryde  <user42@zip.com.au>

        * stime.c (bdtime2c): tm_gmtoff is seconds East, so take negative of
        tm:gmtoff which is seconds West.  Reported by Aaron VanDevender.
        (bdtime2c): Test HAVE_STRUCT_TM_TM_GMTOFF for tm_gmtoff, rather than
        HAVE_TM_ZONE.
        (scm_strptime): Use tm_gmtoff from the strptime result when that field
        exists, it's set by glibc strptime "%s".
        
2006-06-13  Ludovic Courtès <ludovic.courtes@laas.fr>

        * eq.c: Include "struct.h", "goops.h" and "objects.h".
        (scm_equal_p): Invoke `scm_i_struct_equalp ()' on structures that
        are not GOOPS instances.
        * struct.c: Include "eq.h".
        (scm_free_structs): Use `SCM_STRUCT_VTABLE_DATA ()' instead of
        hand-written code.
        (scm_i_struct_equalp): New.
        * struct.h (scm_i_struct_equalp): New declaration.

2006-06-06  Kevin Ryde  <user42@zip.com.au>

        * Makefile.am (BUILT_SOURCES): Remove guile.texi, only used by
        maintainers (with doc/maint/docstring.el).  Fixes parallel "make -j2"
        reported by Mattias Holm.

2006-06-03  Kevin Ryde  <user42@zip.com.au>

        * read.c (s_vector): Conditionalize on SCM_ENABLE_ELISP, to avoid
        unused variable warning when elisp disabled.  Reported by Ryan
        VanderBijl.

        * throw.c (scm_handle_by_message): Add dummy return value to avoid
        compiler warning on cygwin.  Reported by Ryan VanderBijl.
        
        * Makefile.am (EXTRA_DOT_X_FILES): Typo in dependency rule, was a
        duplicate of EXTRA_DOT_DOC_FILES.
        (DOT_X_FILES, EXTRA_DOT_X_FILES, DOT_DOC_FILES, EXTRA_DOT_DOC_FILES):
        Add scmconfig.h to dependencies, since these all run cpp.  Helps a
        parallel "make -j2".  Reported by Mattias Holm.

2006-05-30  Kevin Ryde  <user42@zip.com.au>

        * ports.c, ports.h (scm_set_port_mark, scm_set_port_free,
        scm_set_port_print, scm_set_port_equalp, scm_set_port_flush,
        scm_set_port_end_input, scm_set_port_close, scm_set_port_seek,
        scm_set_port_truncate, scm_set_port_input_waiting): Use scm_t_bits for
        port type descriptor, same as scm_make_port_type return value.

2006-05-30  Marius Vollmer  <mvo@zagadka.de>

        * eq.c (scm_equal_p): Use scm_array_equal_p explicitely when one
        of the arguments is a array.  This allows vectors to be equal to
        one-dimensional arrays.

2006-05-29  Marius Vollmer  <mvo@zagadka.de>

        * throw.c (scm_ithrow): When looking for the jmpbuf, first test
        that we have a pair before accessing its cdr.  Thanks to Bill
        Schottstaedt!

2006-05-28  Kevin Ryde  <user42@zip.com.au>

        * eval.c, filesys.c: Add malloc.h to get alloca() on mingw.  Reported
        by "The Senator".

2006-05-27  Marius Vollmer  <mvo@zagadka.de>

        * srfi-4.c, strings.c: Replace SCM_C_INLINE with
        SCM_C_INLINE_KEYWORD.  Thanks to Mark Gran!

2006-05-26  Kevin Ryde  <user42@zip.com.au>

        * fports.c (fport_input_waiting): For ioctl, check HAVE_IOCTL as well
        as defined(FIONREAD), since mingw has FIONREAD but not ioctl().
        Reported by "The Senator".
        For select and ioctl, move fdes into those conditionals, to avoid
        unused variable warning when neither of those used.

2006-05-23  Kevin Ryde  <user42@zip.com.au>

        * fports.c: Remove "fwrite" declaration under "! HAVE_UNISTD_H".
        It's unused and will be in stdio.h anyway (if it's anywhere).

2006-05-20  Kevin Ryde  <user42@zip.com.au>

        * filesys.c (scm_stat2scm): Test #ifdef S_ISLNK directly, rather than
        HAVE_S_ISLNK from configure (it was only a #ifdef test anyway).

        * posix.c (scm_mknod): Test #ifdef S_IFLNK before using that (for
        symlink).  Probably can't create symlinks with mknod anyway though.

        * inline.h (scm_is_pair): Add a workaround for i386 gcc 2.95 bad code
        generation.

2006-05-15  Kevin Ryde  <user42@zip.com.au>

        * simpos.c, simpos.h (scm_primitive__exit): New function.
        (scm_primitive_exit): Update docstring, no longer the best exit after
        a fork.

2006-05-09  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_i_divide): For big/big wanting inexact, use mpq_get_d
        rather than converting to doubles, to avoid inf or nan when the inputs
        are too big for a double but the quotient does fit.  This affects
        conversions exact->inexact of big fractions.

        * filesys.c (scm_open_fdes): Use open64.
        (scm_init_filesys): Add O_LARGEFILE.

        * ports.c (scm_seek): Use lseek64.
        (scm_truncate_file): Use ftruncate64.

2006-05-08  Marius Vollmer  <mvo@zagadka.de>

        * private-gc.h (CELL_P): Also check that the potential pointer is
        correctly aligned for a cell.  Thanks to Miroslav Lichvar!

2006-04-18  Rob Browning  <rlb@defaultvalue.org>

        * _scm.h: Add back error if the size of off_t is unknown.  The bug
        was actually in guile-readline's configuration.

2006-04-18  Kevin Ryde  <user42@zip.com.au>

        * posix.c (scm_mkstemp): Update docstring from the manual, in
        particular file mode 0600 is not guaranteed.

2006-04-17  Kevin Ryde  <user42@zip.com.au>

        * _scm.h (scm_to_off_t, scm_from_off_t): No error if unknown off_t
        size, to help the guile-readline build where off_t is unused.

2006-04-16  Kevin Ryde  <user42@zip.com.au>

        * filesys.c (scm_stat2scm, scm_stat, scm_lstat): Use stat or stat64.
        (scm_readdir): Use readdir64.
        (scm_copy_file): Use open64 and fstat64, to cope with >2Gb files.
        * ports.c (scm_truncate_file): Use truncate64.  Correction truncate
        and ftruncate take off_t not size_t.
        * _scm.h (stat_or_stat64 etc): Macros for selecting LFS64 when
        available.

2006-04-06  Kevin Ryde  <user42@zip.com.au>

        * fports.c (scm_setvbuf): Fix for not _IOLBF, clear SCM_BUFLINE
        instead of toggling it.  Reported by Ludovic Courtès.
        
2006-03-26  Marius Vollmer  <mvo@zagadka.de>

        * threads.c (get_thread_stack_base): Use scm_get_stack_base
        instead of accessing __libc_stack_end directly, and only do this
        when pthread_attr_getstack is known not to work for the main
        thread or when not using pthreads at all.

        * gc_os_dep.c (scm_get_stack_base): Abort when the machine type is
        unknown instead of returning NULL.

2006-03-21  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * numbers.c (scm_i_mem2number): Renamed to
        scm_c_locale_stringn_to_number.
        * numbers.c, print.c, read.c: Updated callers.
        * numbers.h: Update function declaration.

2006-03-11  Neil Jerram  <neil@ossau.uklinux.net>

        * unif.c (string_set): Don't return in a void function.  (Reported
        by Mike Gran.)

        * srfi-4.c (scm_uniform_vector_read_x): Declare base as char*
        rather than void*, so we can do pointer arithmetic on it.
        (Reported by Mike Gran.)
        (s_scm_uniform_vector_write): Ditto.

2006-03-10  Neil Jerram  <neil@ossau.uklinux.net>

        * unif.c (scm_make_shared_array): Don't use SCM_I_ARRAY_BASE when
        oldra is not an array.  (Reported by Steve Juranich.)

        * threads.c (do_unlock): Renamed from "unlock", which is defined
        in unistd.h on QNX.  (Reported by Matt Kraai.)

2006-03-04  Kevin Ryde  <user42@zip.com.au>

        * deprecated.c (scm_i_defer_ints_etc): Show SCM_DEFER_INTS in message,
        not SCM_CRITICAL_SECTION_START.

        * eval.c, posix.c: Change comments from C++ to C style.  Reported by
        Mike Gran.

2006-02-28  Kevin Ryde  <user42@zip.com.au>

        * unif.c (bitvector_set): Use h->writable_elements not h->elements.

2006-02-26  Kevin Ryde  <user42@zip.com.au>

        * filesys.c (scm_readdir): Use fpathconf for the dirent size when
        NAME_MAX is not available, which is so on Solaris 10.  Report and help
        by Bill Schottstaedt.

        * srfi-13.c (MY_VALIDATE_SUBSTRING_SPEC_UCOPY): New macro.
        (scm_string_compare, scm_string_compare_ci, scm_string_lt,
        scm_string_gt, scm_string_le, scm_string_ge, scm_string_ci_lt,
        scm_string_ci_gt, scm_string_ci_le, scm_string_ci_ge): In comparisons
        use "unsigned char", not signed char.  This ensures comparisons are
        the same as `char<?' etc, and is also the same as guile 1.6 did.
        Reported by Sven Hartrumpf.

2006-02-19  Mikael Djurfeldt  <mdj@neurologic.cc>

        * random.c: Test for SCM_HAVE_T_UINT64 instead of
        SCM_HAVE_T_INT64.
        (scm_i_uniform32, scm_i_uniform32, scm_i_init_rstate): Use
        scm_t_uint64 and scm_t_uint32 instead of scm_t_int64 and
        scm_t_int32.

2006-01-04  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * gc-segment.c (scm_i_sweep_some_cards): Take a SWEEP_STATS
        argument.  Don't refer to SCM_GC_CELLS_COLLECTED and
        SCM_CELLS_ALLOCATED.  If SEG->FIRST_TIME, let CELLS_COLLECTED as zero.
        Take into account SEG->SPAN when computing CELLS_SWEPT.
        (scm_i_sweep_segment): Take one more argument, similarly.
        (scm_i_sweep_all_segments): Likewise.
        (scm_i_sweep_some_segments): Likewise.
        (scm_i_adjust_min_yield): Change the way MIN_CELLS is computed: do not
        refer to SCM_GC_CELLS_COLLECTED.

        * gc-freelist.c (scm_i_adjust_min_yield): Take one more
        argument, an `scm_i_sweep_statistics' object.
        Change the way DELTA is collected: don't take into account
        SCM_GC_CELLS_COLLECTED_1, only SWEEP_STATS.COLLECTED.

        * gc-malloc.c (scm_realloc): Pass an extra argument
        to `scm_i_sweep_all_segments ()'.

        * gc.c (gc_start_stats): Updated accordingly.
        (gc_end_stats): Take an additional SWEEP_STATS argument.
        Decrement SCM_CELLS_ALLOCATED after calls to `scm_i_sweep_* ()'.
        (scm_gc_for_newcell): Updated callers of `scm_i_sweep_*'.
        Decrement SCM_CELLS_ALLOCATED.
        (scm_i_gc): Likewise.

        * private-gc.h (scm_i_sweep_*): Updated function
        prototypes accordingly.
        (scm_t_sweep_statistics): New type.
        (scm_i_sweep_statistics_init): New macro.
        (scm_i_sweep_statistics_sum): New macro

2006-02-14  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * strings.c (scm_i_take_stringbufn): Register LEN+1 bytes instead of
        LEN.  Without this, too much collectable memory gets unregistered,
        which results in an underflow of SCM_MALLOCATED in
        `decrease_mtrigger()'.

        * gc-malloc.c (decrease_mtrigger): Make sure SIZE is lower than or
        equal to SCM_MALLOCATED.

2006-02-13  Marius Vollmer  <mvo@zagadka.de>

        * eval.c (scm_eval_body): Use scm_i_dynwind_pthread_mutex_lock
        oinstead of scm_dynwind_pthread_mutex_lock so that it works when
        configured --without-threads.
        (SCM_APPLY, CEVAL): Likewise.  Thanks to Han-Wen Nienhuys!

2006-02-12  Marius Vollmer  <mvo@zagadka.de>

        * unif.c (scm_dimensions_to_uniform_array): Use the prototype for
        filling when the fill parameter is omitted, as documented, but
        turn #\nul into 0 since s8 arrays (signified by a #\nul prototype)
        can not store characters.

2006-02-09  Neil Jerram  <neil@ossau.uklinux.net>

        * socket.c (scm_c_make_socket_address): Pass address_size pointer
        on to scm_fill_sockaddr call.

2006-02-04  Neil Jerram  <neil@ossau.uklinux.net>

        * throw.h (scm_c_catch, scm_c_with_throw_handler,
        scm_catch_with_pre_unwind_handler, scm_with_throw_handler): New.

        * throw.c (SCM_JBPREUNWIND, SCM_SETJBPREUNWIND): New.
        (struct pre_unwind_data): New, replaces struct lazy_catch.
        (scm_c_catch): New, replaces scm_internal_catch as the primary
        catch API for C code; adds pre-unwind handler support.
        (scm_internal_catch): Now just a wrapper for scm_c_catch, for back
        compatibility.
        (tc16_pre_unwind_data, pre_unwind_data_print,
        make_pre_unwind_data, SCM_PRE_UNWIND_DATA_P): Renamed from
        "lazy_catch" equivalents.
        (scm_c_with_throw_handler): New, replaces scm_internal_lazy_catch
        as the primary C API for a "lazy" catch.
        (scm_internal_lazy_catch): Now just a wrapper for
        scm_c_with_throw_handler, for back compatibility.
        (scm_catch_with_pre_unwind_handler): Renamed from scm_catch; adds
        pre-unwind handler support.
        (scm_catch): Now just a wrapper for
        scm_catch_with_pre_unwind_handler, for back compatibility.
        (scm_with_throw_handler): New.
        (scm_lazy_catch): Update comment to say that the handler can
        return, and what happens if it does.
        (toggle_pre_unwind_running): New.
        (scm_ithrow): When identifying the throw target, take running
        flags into account.  In general, change naming of things from
        "lazy_catch" to "pre_unwind".  When throwing to a throw handler,
        don't unwind the dynamic context first.  Add dynwind framing to
        manage the running flag of a throw handler.  If a lazy catch or
        throw handler returns, rethrow the same exception again.  Add
        pre-unwind support to the normal catch case (SCM_JMPBUFP).

        * root.c (scm_internal_cwdr): Add NULL args to
        scm_i_with_continuation_barrier call.

        * dynwind.c: Change comment mentioning lazy-catch to mention
        pre-unwind data and throw handler also.

        * continuations.h (scm_i_with_continuation_barrier): Add
        pre-unwind handler args.

        * continuations.c (scm_i_with_continuation_barrier): Add
        pre-unwind handler args, and pass on to scm_c_catch (changed from
        scm_internal_catch).
        (c_handler): Remove scm_handle_by_message_noexit call.
        (scm_c_with_continuation_barrier): Call
        scm_i_with_continuation_barrier with scm_handle_by_message_noexit
        as the pre-unwind handler.
        (scm_handler): Remove scm_handle_by_message_noexit call.
        (s_scm_with_continuation_barrier): Call
        scm_i_with_continuation_barrier with scm_handle_by_message_noexit
        as the pre-unwind handler.

2006-02-04  Kevin Ryde  <user42@zip.com.au>

        * gc-mark.c (scm_mark_all): Fix c99-isms "loops" and "again" variables.

2006-02-03  Kevin Ryde  <user42@zip.com.au>

        * list.c, list.h (scm_list): Restore this function for use from C.
        It's a complete no-op but in theory might used by someone.

2006-01-30  Marius Vollmer  <mvo@zagadka.de>

        * eval.c (scm_eval_body): Lock source_mutex with a dynwind context
        so that it gets unlocked in all cases.
        (SCM_APPLY, CEVAL): Likewise.

2006-01-29  Marius Vollmer  <mvo@zagadka.de>

        * ramap.c: (scm_array_map_x): Don't use scm_array_p, use
        scm_is_typed_array instead.

        Renamed the "frames" that are related to dynamic-wind to "dynamic
        contexts.  Renamed all functions from scm_frame_ to scm_dynwind_.
        Updated documentation.

        Disabled "futures":

        * futures.h, futures.c: Wrap whole contents in "#if 0"/"#endif".
        * eval.c, init.c: Comment out all 'future' related things.

2006-01-28  Marius Vollmer  <mvo@zagadka.de>

        * inline.h, pairs.c (scm_is_pair): Moved scm_is_pair from pairs.c
        to inline.h to make it inline.

2005-12-19  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * strings.c (scm_i_take_stringbufn): New.
        (scm_i_c_take_symbol): New.
        (scm_take_locale_stringn): Use `scm_i_take_stringbufn ()'.

        * strings.h (scm_i_c_take_symbol): New.
        (scm_i_take_stringbufn): New.

        * symbols.c  (lookup_interned_symbol): New function.
        (scm_i_c_mem2symbol): New function.
        (scm_i_mem2symbol): Use `lookup_symbol ()'.
        (scm_from_locale_symbol): Use `scm_i_c_mem2symbol ()'.  This avoids
        creating a new Scheme string.
        (scm_from_locale_symboln): Likewise.
        (scm_take_locale_symbol): New.
        (scm_take_locale_symboln): New.

        * symbols.h (scm_take_locale_symbol): New.
        (scm_take_locale_symboln): New.

2006-01-18  Han-Wen Nienhuys  <hanwen@xs4all.nl>

        * gc-card.c ("sweep_card"): don't count scm_tc_free_cell for
        free_count.

2005-11-29  Han-Wen Nienhuys  <hanwen@xs4all.nl>

        * regex-posix.c (s_scm_regexp_exec): list the offending pattern
        upon error

2005-12-29  Neil Jerram  <neil@ossau.uklinux.net>

        * fluids.c (next_fluid_num): [From Ludovic Courtès:] Don't trigger
        the GC when allocated_fluids_len is zero.

2005-12-14  Neil Jerram  <neil@ossau.uklinux.net>

        * load.c (the_reader, the_reader_fluid_num): New.
        (scm_primitive_load): Support custom reader.
        (scm_init_load): Init the_reader and the_reader_fluid_num; export
        the_reader as `current-reader'.

        * scmsigs.c (do_read_without_guile): Use the "raw_data" passed in
        (rather than an uninitialized pointer on the stack).

2005-12-07  Marius Vollmer  <mvo@zagadka.de>

        Reported by Bruce Korb:
        
        * init.c (invoke_main_func): Don't call exit here.  Throws that
        are only caught by scm_with_guile will bypass us and would cause
        scm_boot_guile to return erroneously.
        (scm_boot_guile): Expect scm_with_guile to return and call exit
        here, passing it an appropriate exit code.

        From Andy Wingo:
        
        * script.c (scm_find_executable): Compile fix -- fgetc returns an
        unsigned char cast to an int, or -1 for EOS.
        
2005-12-06  Marius Vollmer  <mvo@zagadka.de>

        * srfi-4.h, srfi-4.c, srfi-4.i.c (take_uvec): Make BASE pointer
        non-const.
        (scm_take_u8vector, etc): Likewise.  Thanks to Ludovic Courtès!
        
        * threads.h, threads.c (scm_t_guile_ticket, scm_leave_guile,
        scm_enter_guile): Removed from public API.  See comment at
        scm_without_guile for the rationale.

        * scmsigs.c (read_without_guile): New.
        (signal_delivery_thread): Use it instead of
        scm_leave_guile/read/scm_enter_guile.

        From Stephen Compall:

        * eval.c (scm_m_cond): Recognize SRFI 61 cond syntax.
        (CEVAL): Evaluate SRFI 61 cond clauses.

2005-12-06  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * gc-card.c (scm_i_card_statistics): Return if BITVEC is NULL.
        This was typically hit when running `gc-live-object-stats' right
        after starting Guile.

2005-11-30  Kevin Ryde  <user42@zip.com.au>

        * srfi-13.c (scm_string_append_shared): No copying if just one
        non-empty string in args.

2005-11-26  Kevin Ryde  <user42@zip.com.au>

        * gc-mark.c (scm_mark_all): Change C++ comment to C comment.  Reported
        by Ludovic Courtès.

        * list.c (list): Should be "primitive" in SCM_SNARF_DOCS, not
        "register".

        * random.c (scm_i_copy_rstate, scm_c_make_rstate): Don't test for
        scm_malloc returning NULL, it never does that.
        * putenv.c (putenv): Likewise.

        * socket.c (scm_fill_sockaddr): Remove SCM_C_INLINE_KEYWORD, this is
        much too big to want to inline.

2005-11-17  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * print.c (EXIT_NESTED_DATA): Before popping from the stack, reset
        the value at its top.  This fixes a reference leak.
        (PUSH_REF): Perform `pstate->top++' after calling
        `PSTATE_STACK_SET ()' in order to avoid undesired potential side
        effects.

2005-11-12  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * gc.c (scm_weak_vectors): Removed.

2005-11-12  Kevin Ryde  <user42@zip.com.au>

        * socket.c (scm_setsockopt): Missing @defvar in docstring.  Reported
        by Ludovic Courtès.

2005-11-07  Marius Vollmer  <mvo@zagadka.de>

        * stime.c (scm_mktime): Use scm_frame_critical_section instead of
        SCM_CRITICAL_SECTION_START/END since the code inside the critical
        section might exit non-locally.

2005-11-04  Neil Jerram  <neil@ossau.uklinux.net>

        * eval.c (sym_instead): New symbol.
        (ENTER_APPLY): Remove optional use of a continuation when making
        trap call.
        (scm_debug_opts): Change doc for 'cheap option to make clear that
        it is now obsolete.
        (CEVAL, SCM_APPLY): Remove optional use of a continuation when
        making trap calls, and implement substitution of eval expressions
        and return values using the values that the trap call handlers
        return.

        * debug.h (SCM_CHEAPTRAPS_P): Removed.

2005-10-27  Ludovic Courtès  <ludovic.courtes@laas.fr>

        * socket.c (scm_fill_sockaddr): No need to check NULL from scm_malloc.
        (scm_connect, scm_bind, scm_sendto): Accept sockaddr object.
        (scm_addr_vector): Renamed to _scm_from_sockaddr, update usages.
        (scm_from_sockaddr, scm_to_sockaddr, scm_make_socket_address,
        scm_c_make_socket_address): New functions.
        * socket.h: Add prototypes.

2005-10-24  Kevin Ryde  <user42@zip.com.au>

        * socket.c (scm_init_socket): Add IPPROTO_IP, IPPROTO_TCP,
        IPPROTO_UDP.  Remove SOL_IP, SOL_TCP, SOL_UDP.  The former are in
        POSIX spec examples, the latter are not available on for instance
        NetBSD.

        * socket.c (scm_getsockopt, scm_setsockopt): Update docstrings from
        posix.texi.

        * stime.c (scm_strftime): Update docstring from posix.texi.

2005-10-23  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP is not portable enough.
        
        * null-threads.h, pthread-threads.h
        (SCM_I_PTHREAD_RECURSIVE_MUTEX_INITIALIZER): Removed.
        (scm_i_pthread_mutexattr_recursive): New.

        * threads.c (scm_i_pthread_mutexattr_recursive): Declare.
        (scm_i_critical_section_mutex): Do not initialize statically.
        (scm_threads_prehistory): Initialize
        scm_i_pthread_mutexattr_recursive and scm_i_critical_section_mutex
        here.
        
        * eval.c (source_mutex): Do not initialiaze statically.
        (scm_init_eval): Do it here, using
        scm_i_pthread_mutexattr_recursive.

2005-09-05  Marius Vollmer  <mvo@zagadka.de>

        * print.h (SCM_PRINT_KEYWORD_STYLE_I, SCM_PRINT_KEYWORD_STYLE):
        New.
        (sym_reader): New.
        (scm_print_opts): Added "quote-keywordish-symbols" option.
        (quote_keywordish_symbol): New, for evaluating the option.
        (scm_print_symbol_name): Use it.
        (scm_init_print): Initialize new option to sym_reader.
        
2005-08-15  Neil Jerram  <neil@ossau.uklinux.net>

        * eval.c (eval_letrec_inits): New.
        (CEVAL): Eval letrec initializer forms using eval_letrec_inits.

2005-08-12  Marius Vollmer  <mvo@zagadka.de>

        * numbers.c: Use scm_from_bool instead of SCM_BOOL.  Thanks to
        Peter Gavin!

2005-08-12  Kevin Ryde  <user42@zip.com.au>

        * srfi-13.c (scm_string_for_each_index): Correction to docstring.

2005-08-06  Kevin Ryde  <user42@zip.com.au>

        * srfi-13.c (scm_string_any, scm_string_every, scm_string_tabulate,
        scm_string_trim, scm_string_trim_right, scm_string_trim_both,
        scm_string_index, scm_string_index_right, scm_string_skip,
        scm_string_skip_right, scm_string_count, scm_string_map,
        scm_string_map_x, scm_string_for_each, scm_string_for_each_index,
        scm_string_filter, scm_string_delete): Use scm_t_trampoline_1 for
        procedures called in loops.

2005-08-02  Kevin Ryde  <user42@zip.com.au>

        * strports.c (st_flush): Increase buffer by 1.5x when growing, to
        avoid lots of copying where previoulsy growing by only 80 bytes at a
        time.

2005-08-01  Marius Vollmer  <mvo@zagadka.de>

        * modules.h, modules.c (scm_eval_closure_module): Removed, we
        already have scm_lookup_closure_module, which does the same thing.
        
2005-08-01  Marius Vollmer  <mvo@zagadka.de>

        New marking algorithm for weak hashtables that fixes the problem
        that references from the non-weak value to the associated weak
        key (for example) would prevent the entry from ever being dropped.

        Guardians have been changed back to their original semantics and
        are no longer greedy and no longer drop cycles.
        
        * gc-mark.c (scm_mark_all): Do not rely on hooks to run the weak
        hashtable and guardian machinery but call the relevant functions
        directly.

        * guardians.h, guardians.c, deprecated.h,
        deprecated.c (scm_destroy_guardian_x, scm_guardian_greedy_p,
        scm_guardian_destroyed_p, scm_guard, scm_get_one_zombie):
        Deprecated and moved into deprecated.[ch].

        * guardians.h, guardians.c: Mostly rewritten.
        (scm_i_init_guardians_for_gc,
        scm_i_identify_inaccessible_guardeds,
        scm_i_mark_inaccessible_guardeds): New.
        (scm_make_guardian): Removed greedy_p argument.
        
        * weaks.h, weaks.c (SCM_I_WVECT_TYPE, SCM_I_SET_WVECT_TYPE): New.
        (SCM_I_WVECT_N_ITEMS, SCM_I_SET_WVECT_N_ITEMS): New.
        (SCM_WVECTF_NOSCAN, SCM_WVECT_NOSCAN_P): Removed.
        (scm_weaks_prehistory): Removed.
        (scm_i_init_weak_vectors_for_gc, scm_i_mark_weak_vector,
        scm_i_mark_weak_vectors_non_weaks,
        scm_i_remove_weaks_from_weak_vectors, scm_i_remove_weaks): New.
        (scm_weak_vector_gc_init, scm_mark_weak_vector_spines,
        scm_scan_weak_vectors): Removed.
        
        * hashtab.h (scm_i_scan_weak_hashtables): New.
        * hashtab.c (make_hash_table, scm_i_rehash): Do not use
        SCM_WVECTF_NOSCAN.
        (hashtable_print): Use SCM_HASHTABLE_N_ITEMS instead of
        t->n_items.
        (scan_weak_hashtables, scm_i_scan_weak_hashtables): Renamed former
        to latter.  Do not scan the alists themselves, this is done by the
        weak vector code now.  Just update the element count.

        * vectors.h (SCM_I_WVECT_TYPE, SCM_I_WVECT_EXTRA): Renamed former
        to latter.  The type is now only part of the cell word.
        (SCM_I_SET_WVECT_TYPE, SCM_I_SET_WVECT_EXTRA): Likewise.

        * init.c (scm_i_init_guile): Do not call scm_weaks_prehistory.

2005-07-18  Mikael Djurfeldt  <mdj@d14n36.pdc.kth.se>

        Some changes towards making it possible to run Guile on the EM64T
        platform.

        * gc.c (scm_gc_stats): Bugfix: Measure size of the type we are
        mallocating for (unsigned long *bounds).

        * hashtab.c (scm_i_rehash): Cast SCM_HASHTABLE_FLAGS (table) to
        scm_t_bits before storing them in the type word.
        
        * gc.c (tag_table_to_type_alist): Modified type of c_tag from
        scm_t_bits to int.

2005-07-12  Kevin Ryde  <user42@zip.com.au>

        * eval.c (scm_dbg_make_iloc): Should be SCM_IFRAMEMAX and
        SCM_IDISTMAX, and cast uints through scm_t_bits to make gcc happy.
        * pairs.c (scm_error_pair_access): Use scm_from_locale_string rather
        than scm_makfrom0str.
        Reported by Ken Raeburn.
        
        * gc-card.c (scm_dbg_gc_get_bvec): Change return from long* to
        scm_t_c_bvec_long*, gcc 4 doesn't like different pointer targets when
        returning SCM_GC_CARD_BVEC.
        
        * pairs.c (scm_error_pair_access): Plain ascii ' in error message
        rather than latin-1 acute accent, the latter may not print on all
        terminals.

        * srfi-13.c (scm_string_filter, scm_string_delete): Strip leading and
        trailing deletions, so as to return a substring if those are the only
        changes.

2005-07-10  Kevin Ryde  <user42@zip.com.au>

        * socket.c (scm_inet_pton, scm_inet_ntop): Pointer cast to scm_t_uint8
        for scm ipv6 funcs, gcc 4 is picky about char* vs uchar*.
        (scm_getsockopt, scm_accept, scm_getsockname, scm_getpeername,
        scm_recvfrom) Use socklen_t, gcc 4 is picky about int* vs socklen_t*.

2005-07-01  Han-Wen Nienhuys  <hanwen@xs4all.nl>

        * gc-card.c (scm_i_card_statistics): init tag.

        * gc.c (tag_table_to_type_alist): check type of tag. Should be integer.

2005-06-18  Han-Wen Nienhuys  <hanwen@xs4all.nl>

        * fports.c (s_scm_open_file): add the b flag for binary to the doc
        string.

2005-06-25  Kevin Ryde  <user42@zip.com.au>

        * srfi-13.c (scm_string_filter, scm_string_delete): Partial revert
        last change, use plain copy-on-write substrings, the individual
        descriptions in the srfi don't mention shared storage (only the
        introduction does).

        * strings.c (scm_take_locale_stringn): Use realloc to make room for
        null-terminator, rather than mallocing a whole new block.
        (scm_take_locale_string): Use scm_take_locale_stringn len==-1.

2005-06-12  Marius Vollmer  <mvo@zagadka.de>

        * ramap.c (scm_array_index_map_x): First test for real arrays,
        then check for generalized vectors.  This ensures that the
        generalized vector case need only work with zero-origin ranges.
        (scm_ra_eqp, scm_ra_compare): Use the new array handle functions
        to access the target array, making these functions work with all
        kinds of arrays, not just bit arrays.

        * gh.h, gh_data.c, gh_eval.c, gh_funcs.c, gh_init.c, gh_io.c,
        gh_list.c, gh_predicates.c: Deprecated everything.

        * environments.c (environment_default_folder,
        environment_default_observer): Do not use gh_call3, gh_call1.

2005-06-10  Han-Wen Nienhuys  <hanwen@xs4all.nl>

        * modules.c (s_scm_eval_closure_module): new function. Return the
        module inside an eval-closure.

        * gc.c (scm_init_storage): make scm_stand_in_procs a weak_key hash
        table. This means that procedure properties are GC'd if the
        procedure dies.

2005-06-11  Kevin Ryde  <user42@zip.com.au>

        * srfi-13.c (scm_string_filter, scm_string_delete): For char and
        charset cases, count chars kept and build a string in a second pass,
        rather than using a cons cell for every char kept.  Use a shared
        substring when nothing removed (such sharing is allowed by the srfi).

2005-06-09  Han-Wen Nienhuys  <hanwen@xs4all.nl>

        * gc.c (tag_table_to_type_alist): convert tag number to "tag %d"
        string, so live object stats can be sorted with string<?. 

2005-06-06  Marius Vollmer  <mvo@zagadka.de>

        * print.c (iprin1): When writing a string, collect all characters
        that can be printed directly into one call to scm_lfwrite.
        Previously, every character was output with its own call to
        write(2) on unbuffered ports.

        * eval.c (scm_eval_options_interface): Use
        scm_frame_critical_section instead of SCM_CRITICAL_SECTION_START
        and SCM_CRITICAL_SECTION_END.

        * unif.c (scm_array_in_bounds_p): First test for real arrays, then
        check for generalized vectors.  This ensures that the generalized
        vector case need only work with zero-origin ranges.

2005-06-06  Kevin Ryde  <user42@zip.com.au>

        * srfi-13.c (scm_string_split): Compare char/char in scan.  Mixing an
        unsigned int SCM_CHAR and a char string meant an 8-bit char was never
        matched.

2005-06-05  Marius Vollmer  <mvo@zagadka.de>

        * eval.c: Added comment on how to make case 1.1 of
        r5rs_pitfall.test succeed.

        From Jan Nieuwenhuizen <janneke@gnu.org>. Thanks!

        * hashtab.h: Bugfix: use SCM_API (WAS: extern).
 
        * socket.c: Remove obsolete comment about socklen_t.
        (s_scm_setsockopt)[!HAVE_IP_MREQ]: Do not use ip_mreq code.
 
        * numbers.h (isnan)[__MINGW32__]: Remove.
 
        * Makefile.am (gen_scmconfig_SOURCES): Bugfix: Add
        DEFAULT_INCLUDES when cross compiling.
 
        * threads.c (ETIMEDOUT, pipe)[__MINGW32__]: Add defines.

        * stime.c (scm_strftime)[!HAVE_TM_ZONE]: Use
        SCM_SIMPLE_VECTOR_REF instead of SCM_VELTS.  (Changed slightly
        from Jan's patch.)
 
2005-05-22  Marius Vollmer  <mvo@zagadka.de>

        * unif.c (scm_make_shared_array): Add old base to new base since
        scm_array_handle_pos does not include the base.
        (scm_aind): Likewise.

        * ports.c (scm_putc, scm_puts): Assert that the port argument is a
        output port.

2005-05-12  Neil Jerram  <neil@ossau.uklinux.net>

        Mac OS X compile warning fixes, reported by Richard Todd.
        
        * unif.c (scm_i_read_array): Declare rank as ssize_t, to guarantee
        that it is signed.

        * strports.c (st_resize_port): Add unsigned char cast.
        (scm_mkstrport): Make read/write_buf cast unsigned.

        * srfi-13.c (string_titlecase_x): Add unsigned char cast.

        * rdelim.c (scm_read_line): Initialize slen.

        * load.c (scm_search_path): Remove weird >=1, and add
        parentheses to clarify conditions.

        * hash.c (scm_hasher): Add const unsigned char cast.

        * gh_data.c (gh_chars2byvect): Add scm_t_int8 cast.

2005-05-11  Neil Jerram  <neil@ossau.uklinux.net>

        Fix C99isms reported by Ludovic Courtès:
        
        * threads.c (s_scm_lock_mutex): Don't declare msg in middle of
        code.

        * gc.c (s_scm_gc_live_object_stats): Don't declare alist in middle
        of code.

        * gc-card.c (scm_i_card_statistics): Don't declare tag in middle
        of code.
        (scm_i_card_statistics): Add block for declarations of tag_as_scm
        and current.

2005-05-10  Neil Jerram  <neil@ossau.uklinux.net>

        * scmsigs.c (signal_delivery_thread): Return a value, to avoid
        compile warning reported by Werner Scheinast.

2005-04-30  Han-Wen Nienhuys  <hanwen@xs4all.nl>

        * list.h: remove scm_list()

        * fluids.c (DYNAMIC_STATE_NEXT_LOC): new macro for use with
        SCM_DEBUG_CELL_ACCESSES
        (FLUID_NEXT_LOC): idem.

2005-04-30  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_divide): Correction to 1/complex and <any>/complex,
        need to test abs(re)<abs(im) for choice of cases, otherwise divide by
        zero when re==0 and im<0.  Reported by Jean Crepeau.

2005-04-25  Kevin Ryde  <user42@zip.com.au>

        * ramap.c (scm_array_map_x): Allow no source args, add num args checks
        to subr_1, subr_2, subr_2o and dsubr cases.  No source args only has a
        few sensible uses (like filling with a random number generator say),
        but has been allowed in the past and so should be kept.

2005-04-23  Kevin Ryde  <user42@zip.com.au>

        * hashtab.c (scm_hashx_remove_x): Need to pass "closure" to
        scm_hash_fn_remove_x.

        * list.c (scm_cons_star): Don't modify the rest list, it belongs to
        the caller when cons* is reached through apply.

        * list.c (list): Use scm_list_copy, so as to produce a fresh list when
        list is called using apply, under the debugging evaluator.
        (scm_list): Remove.

        * list.c, list.h (scm_make_list): New code, moving make-list from
        boot-9.scm.

2005-04-14  Kevin Ryde  <user42@zip.com.au>

        * numbers.c, numbers.h (scm_oneplus, scm_oneminus): New functions,
        converted from scheme code in boot-9.scm.

2005-04-11  Kevin Ryde  <user42@zip.com.au>

        * srfi-13.c (scm_string_concatenate, scm_string_concatenate_shared):
        Validate list argument, scm_string_append and scm_string_append_shared
        don't do that to their rest argument (in a normal build).

2005-04-04  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * hashtab.h, hashtab.c (scm_t_hashtable): Removed 'closure' field.  The
        closure can not be stored since it is no longer valid at GC time.
        (make_hash_table): Initialize 'hash_fn' field.
        (scm_i_rehash): Only store hash_fn in hash table when closre is
        NULL.
        (rehash_after_gc): Only call scm_i_rehash when 'hash_fn' is
        non-NULL.  Always use a NULL closure.
        (scm_hash_fn_create_handle_x): Also rehash when table contains too
        few entries.
        
2005-03-29  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * hashtab.h, hashtab.c (scm_hash_fx_remove_x): Removed delete_fn
        argument; always use scm_delq_x.  The delete_fn function works on
        the handle, not the key, and it therefore makes no sense to make
        it configurable.  Changed all callers.
        (scm_hashx_remove_x): Likewise.  Also, exported to Scheme.
        (scm_hash_clear): Accept plain vectors as hashtables.
        (scm_delx_x): Removed.
        
2005-03-28  Han-Wen Nienhuys  <hanwen@xs4all.nl>

        * inline.h (scm_double_cell): use __asm__ iso. asm, to maintain
        compatibility with gcc -std=c99.

2005-03-24  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * async.h (scm_mask_ints): Removed left over reference to
        scm_root.

        * threads.c: Removed fprintf debug statements.
        
2005-03-24  Neil Jerram  <neil@ossau.uklinux.net>

        * debug.c (scm_make_memoized): Restore use of SCM_UNPACK.

2005-03-23  Neil Jerram  <neil@ossau.uklinux.net>

        * debug.c (scm_make_memoized): Remove unnecessary critical
        section, and simplify by using SCM_RETURN_NEWSMOB.

2005-03-20  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * strings.h (SCM_STRING_UCHARS): Added missing argument.

2005-03-18  Kevin Ryde  <user42@zip.com.au>

        * arbiters.c (FETCH_STORE) [generic C]: Should be
        scm_i_scm_pthread_mutex_lock/unlock now.  Reported by Ludovic Courtès.

2005-03-13  Kevin Ryde  <user42@zip.com.au>

        * numbers.c, numbers.h (scm_i_clonebig): Remove static, so can use in
        srfi-60.

        * numbers.c (scm_logior): Must scm_i_normbig results as per scm_logand,
        because OR-ing bits into a negative can reduce the value to an inum.

        * numbers.c (scm_num_eq_p): On 64-bit systems, be careful about
        casting inum to double since that can lose precision.

2005-03-10  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * threads.h, threads.c (scm_i_thread): Added gc_running_p field.
        (guilify_self_1): Initialize it.

        * gc.h, gc.c (SCM_FREECELL_P): Removed for good.
        (scm_block_gc, scm_gc_heap_lock): Removed.  Removed all uses.
        (scm_gc_running_p): Now a macro that refers to the scm_i_thread
        field.
        (scm_i_sweep_mutex): Now a non-recursive mutex.  GC can not happen
        recursively.
        (scm_igc, scm_i_gc): Renamed former to latter.  Changed all uses.
        Do not lock scm_i_sweep_mutex, which is now non-recursive, or set
        scm_gc_running_p.  Do not run the scm_after_gc_c_hook.
        (scm_gc): Lock scm_i_sweep_mutex, set scm_gc_running_p and run the
        scm_after_gc_c_hook here.
        (scm_gc_for_new_cell): Set scm_gc_running_p here and run the
        scm_after_gc_c_hook when a full GC has in fact been performed.
        (scm_i_expensive_validation_check): Call scm_gc, not scm_i_gc.

        * gc-segment.c (scm_i_get_new_heap_segment): Do not check
        scm_gc_heap_lock.

        * gc-malloc.c (scm_realloc, increase_mtrigger): Set
        scm_gc_running_p while the scm_i_sweep_mutex is locked.

        * inline.h (scm_cell, scm_double_cell): Do not check
        scm_gc_running_p, allocation during sweeping is OK.

        * gdbint.c (SCM_BEGIN_FOREIGN_BLOCK, SCM_END_FOREIGN_BLOCK): Do
        not set scm_block_gc.

        * init.c (scm_i_init_guile): Do not set scm_block_gc.

        * deprecation.c (scm_c_issue_deprecation_warning): Use malloc
        instead of scm_malloc.  The latter can not be used during GC.

2005-03-09  Marius Vollmer  <mvo@zagadka.de>

        * script.c (scm_compile_shell_switches): Added 2005 to Copyright
        years.

2005-03-09  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * gc-card.c (scm_i_sweep_card): Do not increase/decrease
        scm_gc_running_p.  Sweeping can happen in parallel with
        allocation.

        * inline.h: Updated comments for current threading implementation.

        * threads.h, threads.c (scm_i_frame_single_threaded): Removed.
        (scm_i_thread): Removed unused signal_asyncs field.
        (threads_mark): Do not mark it.
        (guilify_self_1): Do not initialize it.  Do initialize
        continuation_root field.
        (do_thread_exit): Do not remove thread from all_threads list.
        (on_thread_exit): Do it here, after leaving guile mode.
        (sleep_level): Removed.
        (scm_i_thread_put_to_sleep): Leave thread_admin_mutex locked when
        returning.  Do not support recursive sleeps.
        (scm_i_thread_wake_up): Expect thread_admin_mutex to be locked on
        entry.  Do not support recursive sleeps.

        * fluids.c (ensure_state_size, ensure_all_state_sizes,
        resize_all_states): Collapsed ensure_state_size and
        ensure_all_state_sizes into one function named resize_all_states.
        Allocate new vectors outside of single threaded region.  Do only
        simple things inside that region.
         (scm_make_fluid, scm_make_dynamic_state): Lock fluid_admin_mutex
        while adding to the global lists.
        

2005-03-08  Marius Vollmer  <mvo@zagadka.de>

        libltdl is no longer distributed.  We expect it to be installed
        already.
        
        * Makefile.am (INCLUDES): Removed @LTDLINCL@.
        (libguile_la_LIBADD): Removed @LIBLTDL@.

2005-03-07  Marius Vollmer  <mvo@zagadka.de>

        * threads.h, async.h, threads.c (SCM_CRITICAL_SECTION_START,
        SCM_CRITICAL_SECTION_END): Moved here from threads.h since now
        they also block/unblock execution of asyncs and call
        scm_async_click which is declared in async.h but threads.h can not
        include async.h since async.h already includes threads.h.
        (scm_i_critical_section_level): New, for checking mistakes in the
        use of the SCM_CRITICAL_SECTION_* macros.
        (scm_i_critical_section_mutex): Make it a recursive mutex so that
        critical sections can be nested.

        * throw.c (scm_ithrow): Abort when scm_i_critical_section_level is
        not zero.
        
        * threads.h, threads.c (scm_frame_lock_mutex): New.
        (scm_frame_critical_section): Take mutex as argument.
        (framed_critical_section_mutex): New, used as default for above.
        (scm_init_threads): Initialize it.
        (scm_threads_prehistory): Do not initialize thread_admin_mutex and
        scm_i_critical_section_mutex; both are initialized statically.
        
        * continuation.c, deprecated.c, goops.c, guardians.c keywords.c,
        libguile_la-arrays.loT, objprop.c, ports.c, smob.c, sort.s,
        srcprop.c, stime.c, struct.c, throw.c, regex-posix.c: Include
        "libguile/async.h" for SCM_CRITICAL_SECTION_START/END.

        * debug.c (scm_debug_options): Replace
        SCM_CRITICAL_SECTION_START/END with a frame and
        scm_frame_critical_section.

        * continuations.c (scm_make_continuation): No longer a critical
        section.
        (scm_dynthrow):  Abort when scm_i_critical_section_level is
        not zero.
        
2005-03-04  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * threads.c (scm_try_mutex): Renamed argument for consistency.

        * root.c (scm_call_with_dynamic_root): New docstring.

        * eval.c: Define _GNU_SOURCE.

2005-03-02  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        Big merge from the mvo-thread-cleanup branch. The main changes
        are:
        
        - The dynamic roots functionality has been split into dynamic
          states and continuations barriers.  Fluids have been
          reimplemented and can now be garbage collected.
        
        - Initialization of Guile now works in a multi-thread friendly
          manner.  Threads can freely enter and leave guile mode.

        - Blocking on mutexes or condition variables or while selecting
          can now be reliably interrupted via system asyncs.

        - The low-level threading interface has been removed.

        - Signals are delivered via a pipe to a dedicated 'signal delivery
          thread'.
        
        - SCM_DEFER_INTS, SCM_ALLOW_INTS etc have been deprecated.

        * throw.c (scm_handle_by_message): Exit only the current thread,
        not the whole process.
        (scm_handle_by_message_noexit): Exit when catching 'quit.
        
        * scmsigs.c (take_signal, signal_delivery_thread,
        start_signal_delivery_thread, ensure_signal_delivery_thread,
        install_handler): Reimplemented signal delivery as explained in
        the comments.

        * pthreads-threads.h (scm_i_pthread_t, scm_i_pthread_self,
        scm_i_pthread_create, scm_i_pthread_detach, scm_i_pthread_exit,
        scm_i_sched_yield, scm_i_pthread_sigmask,
        SCM_I_PTHREAD_MUTEX_INITIALIZER,
        SCM_I_PTHREAD_RECURSIVE_MUTEX_INITIALIZER, scm_i_pthread_mutex_t ,
        scm_i_pthread_mutex_init, scm_i_pthread_mutex_destroy,
        scm_i_pthread_mutex_trylock, scm_i_pthread_mutex_lock,
        scm_i_pthread_mutex_unlock, SCM_I_PTHREAD_COND_INITIALIZER,
        scm_i_pthread_cond_t, scm_i_pthread_cond_init,
        scm_i_pthread_cond_destroy, scm_i_pthread_cond_signal,
        scm_i_pthread_cond_broadcast, scm_i_pthread_cond_wait,
        scm_i_pthread_cond_timedwait, scm_i_pthread_once_t,
        SCM_I_PTHREAD_ONCE_INIT, scm_i_pthread_once, scm_i_pthread_key_t ,
        scm_i_pthread_key_create, scm_i_pthread_setspecific,
        scm_i_pthread_getspecific, scm_i_scm_pthread_mutex_lock,
        scm_i_frame_pthread_mutex_lock, scm_i_scm_pthread_cond_wait,
        scm_i_scm_pthread_cond_timedwait): Provide the obvious mapping
        when using pthreads.
        * null-threads.c, null-threads.h: Provide dummy definitions for
        the above symbols when not using pthreads.
        
        * modules.h, modules.c (scm_frame_current_module): New.

        * load.c (scm_primitive_load): Use scm_i_frame_current_load_port
        instead of scm_internal_dynamic_wind.

        * init.h, init.c (restart_stack, start_stack): Removed.
        (scm_boot_guile, invoke_main_func): Simply use scm_with_guile.
        (scm_boot_guile_1): Removed.
        (scm_i_init_mutex): New.
        (really_cleanup_for_exit, cleanup_for_exit): New.
        (scm_init_guile_1, scm_i_init_guile): Renamed former to latter.
        Moved around some init funcs.  Call
        scm_init_threads_default_dynamic_state.  Register cleanup_for_exit
        with atexit.
        
        * hashtab.c (scm_hash_fn_create_handle_x, scm_hash_fn_remove_x):
        Use "!scm_is_eq" instead of "!=".

        * ge-scmconfig.c, gen-scmconfig.h.in (SCM_I_GSC_USE_COOP_THREADS,
        SCM_USE_COOP_THREADS): Removed.

        * gc.c (scm_igc): Take care that scm_gc_running_p is properly
        maintained.  Unlock scm_i_sweep_mutex before running
        scm_after_gc_c_hook.
        (scm_permanent_object): Allocate outside of critical section.
        (cleanup): Removed.
        
        * fluids.h, fluids.c: Reimplemented completely.
        (SCM_FLUID_NUM, SCM_FAST_FLUID_REF,
        SCM_FAST_FLUID_SET): Reimplemented as functions.
        (scm_is_fluid): New.
        (scm_i_make_initial_fluids, scm_i_copy_fluids): Removed.
        (scm_make_dynamic_state, scm_dynamic_state_p,
        scm_is_dynamic_state, scm_current_dynamic_state,
        scm_set_current_dynamic_state, scm_frame_current_dynamic_state,
        scm_c_with_dynamic_state, scm_with_dynamic_state,
        scm_i_make_initial_dynamic_state, scm_fluids_prehistory): New.
        
        * feature.c (progargs_fluid): New.
        (scm_program_arguments, scm_set_program_arguments): Use it instead
        of scm_progargs.
        (scm_init_feature): Allocate it.  Also, only add "threads" feature
        when SCM_USE_PTHREAD_THREADS is true.
        
        * eval.c (scm_makprom): Use scm_make_recursive_mutex instead of
        scm_make_rec_mutex, with all the consequences.
        (scm_eval_x, scm_eval): Use scm_frame_begin etc instead of
        scm_internal_dynamic_wind.  Handle dynamic states as second
        argument.
        
        * threads.h, threads.c (scm_internal_select): Renamed to
        scm_std_select and discouraged old name.
        (scm_thread_sleep, scm_thread_usleep): Likewise, as scm_std_sleep
        and scm_std_usleep.
        (scm_tc16_fair_mutex, scm_tc16_fair_condvar, SCM_MUTEXP,
        SCM_FAIR_MUTEX_P, SCM_MUTEX_DATA, SCM_CONDVARP,
        SCM_FAIR_CONDVAR_P, SCM_CONDVAR_DATA, SCM_THREADP,
        SCM_THREAD_DATA): Removed.
        (SCM_I_IS_THREAD, SCM_I_THREAD_DATA): New.
        (scm_i_thread): New.
        (SCM_VALIDATE_THREAD, SCM_VALIDATE_MUTEX, SCM_VALIDATE_CONDVAR):
        Use scm_assert_smob_type.
        (scm_c_scm2thread, scm_thread_join, scm_thread_detach,
        scm_thread_self, scm_thread_yield, scm_mutex_init,
        scm_mutex_destroy, scm_mutex_trylock, scm_mutex_unlock,
        scm_rec_mutex_init, scm_rec_mutex_destroy, scm_make_rec_mutex,
        scm_rec_mutex_free, scm_rec_mutex_lock, scm_rec_mutex_trylock,
        scm_cond_init, scm_cond_destroy, scm_cond_wait,
        scm_cond_timedwait, scm_cond_signal, scm_cond_broadcast,
        scm_key_create, scm_key_delete, scm_setspecific, scm_getspecific,
        scm_thread_select): Removed.  Replaced with scm_i_pthread
        functions as appropriate.
        (scm_in_guile, scm_outside_guile): Removed.
        (scm_t_guile_ticket, scm_leave_guile, scm_enter_guile): Return and
        take a ticket.
        (scm_with_guile, scm_without_guile, scm_i_with_guile_and_parent):
        New.
        (scm_i_frame_single_threaded): New.
        (scm_init_threads_default_dynamic_state): New.
        (scm_i_create_thread): Removed.
        (scm_make_fair_mutex, scm_make_fair_condition_variable): Removed.
        (scm_make_recursive_mutex): New.
        (scm_frame_critical_section): New.
        (SCM_CURRENT_THREAD, SCM_I_CURRENT_THREAD): Renamed former to
        latter, changed all uses.
        (scm_i_dynwinds, scm_i_setdynwinds, scm_i_last_debug_frame,
        scm_i_set_last_debug_frame): New, use them instead of scm_root
        stuff.
        (SCM_THREAD_LOCAL_DATA, SCM_SET_THREAD_LOCAL_DATA,
        scm_i_root_state_key,m scm_i_set_thread_data): Removed.
        (scm_pthread_mutex_lock, scm_frame_pthread_mutex_lock,
        scm_pthread_cond_wait, scm_pthread_cond_timedwait).
        (remqueue): Allow the removal of already removed cells.  Indicate
        whether a real removal has happened.
        (scm_thread): Removed, replaced with scm_i_thread.
        (make_thread, init_thread_creatant): Removed.
        (cur_thread): Removed.
        (block_self, unblock_from_queue): New.
        (block, timed_block, unblock): Removed.
        (guilify_self_1, guilify_self_2, do_thread_exit,
        init_thread_key_once, init_thread_key,
        scm_i_init_thread_for_guile, get_thread_stack_base,
        scm_init_guile): New initialisation method.
        (scm_call_with_new_thread, scm_spawn_thread): Use it to simplify
        thread creation.
        (fair_mutex, fat_mutex, etc, fair_condvar, fat_condvar): Renamed
        "fair" to fat and implemented new semantics, including reliable
        interruption.
        (all_threads): Now a pointer to a scm_i_thread, not a SCM.
        (scm_threads_mark_stacks): Explicitly mark handle.
        (scm_std_select): Allow interruption by also selecting on the
        sleep_pipe.
        (scm_i_thread_put_to_sleep): Handle recursive requests for
        single-threadedness.
        (scm_threads_prehistory, scm_init_threads): Put current thread
        into guile mode via guileify_self_1 and guileify_self_2,
        respectively.

        * fluid.h (SCM_FLUIDP): Deprecated.
        
        * coop-threads.c: Removed.
        
        * continuations.h, continuations.c (scm_with_continuation_barrier,
        scm_c_with_continuation_barrier, scm_i_with_continuation_barrier):
        New.

        * async.h, async.c (scm_i_setup_sleep, scm_i_reset_sleep): New.
        (async_mutex): New.
        (scm_async_click): Protected with async_mutex.  Do not deal with
        signal_asyncs, which are gone.  Set cdr of handled async cell to
        #f.
        (scm_i_queue_async_cell): Protected with async_mutex.  Interrupt
        current sleep.
        (scm_system_async_mark_for_thread): Do not use scm_current_thread
        since that might not work during early initialization.
        
        * __scm.h (SCM_DEFER_INTS, SCM_ALLOW_INTS, SCM_REDEFER_INTS,
        SCM_REALLOW_INTS): Deprecated by moving into deprecated.h and
        deprecated.c.  Replaced all uses with SCM_CRITICAL_SECTION_START
        and SCM_CRITICAL_SECTION_END.
        (SCM_ENTER_A_SECTION, SCM_EXIT_A_SECTION): Removed.  Replaced with
        SCM_CRITICAL_SECTION_START/END.
        
        * Makefile.am (modinclude_HEADER): Removed threads-plugin.h.
        (libguile_la_SOURCES): Added null-threads.c
        (EXTRA_libguile_la_SOURCES): Removed pthread-threads.c and
        threads-plugin.c.
        * pthread-threads.c, threads-plugin.c, threads-plugin.h: Removed.

        * root.h, root.c (scm_tc16_root, SCM_ROOTP, SCM_ROOT_STATE,
        scm_root_state, scm_stack_base, scm_save_regs_gc_mark,
        scm_errjmp_bad, scm_rootcont, scm_dynwinds, scm_progargs,
        scm_last_debug_frame, scm_exitval, scm_cur_inp, scm_outp,
        scm_cur_err, scm_cur_loadp, scm_root, scm_set_root,
        scm_make_root): Removed or deprecated.  Replaced with references
        to the current thread, dynamic state, continuation barrier, or
        some fluid, as appropriate.
        (root_mark, root_print): Removed.
        (scm_internal_cwdr): Reimplemented guts with
        scm_frame_current_dynamic_state and
        scm_i_with_continuation_barrier.
        (scm_dynamic_root): Return current continuation barrier.
        
        
2005-02-28  Marius Vollmer  <mvo@zagadka.de>

        * socket.c (scm_setsockopt): Handle IP_ADD_MEMBERSHIP and
        IP_DROP_MEMBERSHIP options.  Also, reorganized the code a bit for
        cleanliness.
        (scm_init_socket): Define IP_ADD_MEMBERSHIP and
        IP_DROP_MEMBERSHIP.
        Thanks to Greg Troxel!

2005-02-27  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * gh.h: Bugfix: Include <libguile.h> outside of the extern "C"
        block.

2005-02-25  Marius Vollmer  <mvo@zagadka.de>

        * hashtab.c (scm_i_rehash): Remove elements from old bucket vector
        so that no two weak alist vectors share a spine.
        (scm_hash_fn_create_handle_x): Deal with a possible rehashing
        during GC before inserting the new alist cell.

2005-02-23  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * hashtab.c (scm_i_rehash): Cope with the case that a GC modifies
        the hashtable.
        (scm_hash_fn_create_handle_x): Likewise.
        * vectors.h (SCM_I_SET_WVECT_TYPE): New, for use in scm_i_rehash.
        
2005-02-10  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * unif.c (prototype_to_type): Bugfix: Don't compare prototype to
        the prototypical examples mentioned in the old reference manual.
        Instead keep the old semantics of dispatching on type.  (Yes, this
        is extremely ugly, but the whole point of keeping the deprecated
        interface is not to break old code.)

2005-02-08  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * deprecated.h (SCM_ARRAY_DIMS): Rename scm_i_attay_dims -->
        scm_i_array_dims.

2005-01-28  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_ash): Rewrite using shifts, much faster than
        integer-expt and multiply/divide.  Inexacts and fractions no longer
        supported (they happened to work before for left shifts, but not
        right).  Don't really need inexacts and fractions, since ash is
        documented as a "bitwise operation", and all the rest of those only
        take exact integers.

2005-01-27  Han-Wen Nienhuys  <hanwen@xs4all.nl>

        * gc-card.c (scm_i_card_statistics): map structs, closures and
        subrs to one tag.

        * gc.c (s_scm_gc_live_object_stats): return alist, not hashtable.
        (tag_table_to_type_alist): ignore unknown types.

        * gc-segment.c (scm_i_all_segments_statistics): new function.
        (scm_i_heap_segment_statistics): new function

        * gc.c (s_scm_gc_live_object_stats): new GUILE callable: return
        statistics on the number of live objects of each type.

        * gc-card.c (scm_i_tag_name):  new function.
        (scm_i_card_statistics): new function. 

2005-01-24  Kevin Ryde  <user42@zip.com.au>

        * posix.c (scm_setlocale): Force errno=EINVAL for an error, since
        POSIX and C99 don't document errno being set.  Reported by Bruno
        Haible.
        (scm_flock): Update docstring from manual.

        * random.c (scm_i_init_rstate): Compare w to -1 not 0xffffffffUL, now
        that it's an scm_t_int32.  Otherwise gcc 3.4 says it's always false on
        a 64-bit system.

        * scmsigs.c (scm_sigaction_for_thread): Use scm_to_long for
        sa_handler, needs to be a long on 64-bit systems where int is only 32
        bits.

2005-01-20  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * environments.c (obarray_enter, obarray_replace): Call
        SCM_HASHTABLE_INCREMENT when adding a new entry.

        * objects.c: Include goops.h for the scm_class_of prototype.

        * hashtab.c (hashtable_size, HASHTABLE_SIZE_N): Restrict hashtable
        sizes to be smaller than the maximum lengths of vectors.

2005-01-18  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * ports.c, smob.c: Include "libguile/goops.h".

        * objects.h, objects.c, goops.c, goops.h (scm_class_boolean,
        scm_class_char, scm_class_pair, scm_class_procedure,
        scm_class_string, scm_class_symbol,
        scm_class_procedure_with_setter, scm_class_primitive_generic,
        scm_class_vector, scm_class_null, scm_class_real,
        scm_class_complex, scm_class_integer, scm_class_fraction,
        scm_class_unknown, scm_port_class, scm_smob_class,
        scm_no_applicable_method, scm_class_of): Moved from objects to
        goops since they are only useable once goops has been loaded.
        (scm_classes_initialized): Removed.
        (scm_class_of): Do not check it.
        (create_standard_classes): Do not set it.
        
2005-01-17  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * objects.h, objects.c (scm_classes_initialized): New.
        (scm_class_of): Signal error when scm_classes_initialized is zero.
        * goops.c (create_standard_classes): Set scm_classes_initialized
        to one.
        
        * random.c (scm_random_solid_sphere_x): Use
        scm_c_generalized_vector_length instead of
        scm_uniform_vector_length.

2005-01-16  Marius Vollmer  <mvo@zagadka.de>

        * script.c (scm_compile_shell_switches): Removed debugging output.

2005-01-15  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_logtest, scm_logbit_p, scm_integer_expt): Update
        docstrings from manual.
        * random.c (scm_random_solid_sphere_x): Update docstring from manual.

2005-01-14  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * random.c: Don't check for definedness of SCM_HAVE_T_INT64, check
        its value.

        Implement u64 and s64 uniform numeric vectors with bignums when
        scm_t_uint64 and scm_t_int64 are not available.

        * srfi-4.h, srfi-4.c, srfi-4.i.c (scm_take_u64vector,
        scm_array_handle_u64_elements,
        scm_array_handle_u64_writable_elements, scm_u64vector_elements,
        scm_u64vector_writable_elements): Do not define when scm_t_uint64
        is not available.
        (scm_take_s64vector, scm_array_handle_s64_elements,
        scm_array_handle_s64_writable_elements, scm_s64vector_elements,
        scm_s64vector_writable_elements): Likewise for scm_t_int64.
        (uvec_sizes, uvec_print, uvec_equalp): Use SCM bignums when
        scm_t_int64/scm_t_uint64 are not available.
        (uvec_mark): New, to mark the bignums.
        (alloc_uvec): Initialize bignums.
        (uvec_fast_ref): Return bignums directly.
        (scm_uint64_min, scm_uint64_max, scm_int64_min, scm_int64_max,
        assert_exact_integer): New.
        (uvec_fast_set): Use them to validate the bignums.
        (scm_init_srfi_4): Set mark function of smob when needed.
        Initialize scm_uint64_min, scm_uint64_max, scm_int64_min,
        scm_int64_max.
        
        Recognize 1.4 -e syntax.
        
        * script.c (sym_at, sym_atat, sym_main, all_symbols): New.
        (scm_compile_shell_switches): Use them to recognize and convert
        1.4 "-e" syntax.
        
2005-01-12  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * deprecated.h, deprecated.c, strings.h, strings.c: Turn all
        deprecated features that once were macros but are now functions
        back into macros.

2005-01-11  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * eval.c, debug.h (SCM_WARN_DEPRECATED): New debug option.
        * deprecation.c (scm_issue_deprecation_warning,
        scm_c_issue_deprecation_warning_fmt): Use it.
        (mode): Removed.
        (print_summary): New.
        (scm_init_deprecation): Initialize SCM_WARN_DEPRECATED instead of
        mode.
        
        Deprecated SCM_ARRAY* macros.
        
        * unif.h, unif.c, ramap.c, vectors.c, srfi-4.c, srfi-4.i.c
        (SCM_ARRAYP, SCM_I_ARRAYP): Renamed former to latter internal
        version.  Changed all uses.
        (scm_tc16_array, scm_i_tc16_array,
        scm_tc16_enclosed_array, scm_i_tc16_enclosed_array,
        SCM_ARRAY_FLAG_CONTIGUOUS, SCM_I_ARRAY_FLAG_CONTIGUOUS,
        SCM_ENCLOSE_ARRAYP, SCM_I_ENCLOSE_ARRAYP,
        SCM_ARRAY_NDIM, SCM_I_ARRAY_NDIM,
        SCM_ARRAY_CONTP, SCM_I_ARRAY_CONTP,
        SCM_ARRAY_MEM, SCM_I_ARRAY_MEM,
        SCM_ARRAY_V, SCM_I_ARRAY_V,
        SCM_ARRAY_BASE, SCM_I_ARRAY_BASE,
        SCM_ARRAY_DIMS, SCM_I_ARRAY_DIMS,
        scm_t_array, scm_i_t_array): Likewise.
        (SCM_SET_ARRAY_CONTIGUOUS_FLAG, SCM_CLR_ARRAY_CONTIGUOUS_FLAG):
        Moved from unif.h to unif.c.
        (scm_c_array_rank): New.
        (scm_array_rank): Reimplement using it.
        
        * deprecated.h, deprecated.c (SCM_ARRAYP, SCM_ARRAY_NDIM,
        SCM_ARRAY_CONTP, SCM_ARRAY_MEM, SCM_ARRAY_V, SCM_ARRAY_BASE,
        SCM_ARRAY_DIMS, scm_t_array): New deprecated versions.
        
2005-01-11  Marius Vollmer  <mvo@zagadka.de>

        * ramap.c: Replace uses of scm_make_ra with scm_i_make_ra.
        (GVREF, GVSET): New abbreviations.  Use them everywhere instead of
        scm_c_generalized_vector_ref and scm_cvref, and
        scm_c_generalized_vector_set_x, respectively.
        (RVREF, IVDEP, BINARY_ELTS_CODE, BINARY_PAIR_ELTS_CODE,
        UNARY_ELTS_CODE, UNARY_PAIR_ELTS_CODE): Removed since unused.

        * unif.h, unif.c (indices_to_pos, scm_array_handle_pos): Renamed
        former to latter and made public.  Changed all uses.
        (scm_i_make_ra): Made public, changed tag param to enclosed flag.
        (scm_make_ra): Deprecated, changed all uses to scm_i_make_ra.
        (scm_i_shap2ra): New internal version of scm_shap2ra.
        (scm_shap2ra): Deprecated, changed all uses to scm_i_shap2ra.
        (scm_i_ra_set_contp): New internal version of scm_ra_set_contp.
        (scm_ra_set_contp): Deprecated, changed all uses to
        scm_i_ra_set_contp.
        (scm_cvref, scm_aind, scm_raprin1): Deprecated.
        
2005-01-10  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * eval.c (scm_eval): Added example to docstring.  Thanks to Issac
        Trotts!

        * unif.c (scm_list_to_typed_array): Allow the specification of the
        upper bound as well.  This is needed for empty arrays.
        (l2ra): Give needed number of elements in error message.
        (scm_i_print_array): Print length information for arrays that need
        it.
        (scm_i_read_array): Parse it.
        
        * deprecated.h, deprecated.c (SCM_CHARS, SCM_UCHARS, SCM_LENGTH,
        scm_i_object_chars, scm_i_object_length): Brought back from the
        dead.

2005-01-10  Marius Vollmer  <mvo@zagadka.de>

        * ramap.c: Replaced single-index uses of scm_array_set_x with
        scm_c_generalized_vector_set_x.

        * unif.c (scm_array_rank, scm_array_dimensions,
        scm_shared_array_offset, scm_shared_array_increments,
        scm_array_ref, scm_array_set_x): Use scm_t_array_handle operations
        to simplify code and make it more general.
        (scm_shared_array_root): Work with all kinds of arrays, including
        naked vectors.
        (indices_to_pos): New.
        (scm_make_shared_array): Use it instead of scm_aind; use handle
        for oldra.

2005-01-10  Kevin Ryde  <user42@zip.com.au>

        * posix.c (scm_mkstemp): Update docstring from manual.

        * stime.c (scm_mktime): Missing default errno=EINVAL from prev change.

2005-01-09  Marius Vollmer  <mvo@zagadka.de>

        * srfi-4.h, srfi-4.c, srfi-4.i.c (scm_i_uniform_vector_ref_proc,
        scm_i_uniform_vector_set_proc): New.
        (u8ref, u8set, s8ref, s8set, etc): New.
        (uvec_reffers, uvec_setters): New.
        (uvec_to_list): Use generic scm_array_handle_ref instead of
        uvec_fast_ref since scm_array_handle_ref should be faster now.
        (coerce_to_uvec, scm_c_uniform_vector_ref,
        scm_c_uniform_vector_set_x): Likewise.
        
        * unif.h, unif.c, inline.h (scm_i_t_array_ref, scm_i_t_array_set):
        New.
        (scm_t_array_handle): Added ref, set, elements and
        writable_elements for fast inline operation of
        scm_array_handle_ref and scm_array_handle_set.
        (scm_array_handle_ref, scm_array_handle_set): Moved to inline.h
        and replaced with inline code that simply calls the ref/set
        members of the handle.
        (enclosed_ref, vector_ref, string_ref, bitvector_ref, memoize_ref,
        enclosed_set, vector_set, string_set, bitvector_set, memoize_set):
        New.
        (scm_array_handle_get): Initialize ref/set fields to memoize_ref
        and memoize_set.
        (scm_bitvector_fill_x, scm_bitvector_to_list, scm_bit_count,
        scm_bit_position, scm_bit_set_star_x, scm_bit_count_star,
        scm_bit_invert_x): Correctly multiply index with increment in the
        general case.
        
        * unif.c (scm_array_handle_set): Correctly execute only one
        alternative.  D'Oh!
        (scm_list_to_typed_array, l2ra): Use scm_t_array_handle to fill
        the array; this covers all cases with much simpler code.
        
        * srfi-4.c (scm_uniform_element_size): Deprecated implementation
        as well.

2005-01-09  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * srfi-4.c (uvec_type): New.
        (uvec_to_list, uvec_ref, uvec_set_x, scm_c_uniform_vector_ref,
        scm_c_uniform_vector_x): Use it to get concrete type.

        * unif.h (scm_t_array_dim): Changed type of members to ssize_t, to
        fit the docs.

        * unif.c (ra2l): Handle zero rank arrays.
        (scm_i_print_array): Print zero rank arrays specially.
        (tag_to_type): Return #t for an empty tag, not the empty symbol.
        (scm_i_read_array): Allow zero rank arrays.
        
2005-01-07  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * hashtab.h, hashtab.c (SCM_HASHTAB_BUCKET_LOC): Removed.
        (scan_weak_hashtables): Rewrote its use with SCM_HASHTAB_BUCKET
        and SCM_SET_HASHTAB_BUCKET.

        * print.h, print.c (scm_print_state, SCM_PRINT_STATE_LAYOUT):
        Removed ref_stack field.
        (PSTATE_STACK_REF, PSTATE_STACK_SET): New, for accessing the stack
        of a print state.  Use them everywhere instead of ref_stack.
        
        * srfi-4.h (scm_uniform_element_size): Deprecated for real.
        
        * srfi-4.c: Include deprecation.h.

        * vectors.h, vectors.c, unif.h, unif.c, deprecated.h,
        deprecated.c, eq.c
        (SCM_BITVEC_REF, SCM_BITVEC_SET, SCM_BITVEC_CLR): Removed.
        (scm_vector_elements, scm_vector_writable_elements,
        scm_generalized_vector_get_handle): Moved to vectors.[hc] from
        unif.[hc].
        (SCM_SIMPLE_VECTOR_LOC): Removed.
        (SCM_VECTOR_MAX_LENGTH, SCM_VECTOR_LENGTH, SCM_VELTS,
        SCM_WRITABLE_VELTS, SCM_VECTOR_REF, SCM_VECTOR_SET,
        scm_vector_equal_p): Moved from vectors.[hc] to deprecated.[hc].
        (scm_vector_equal_p, scm_i_vector_equal_p): Renamed former to
        latter.  Changed use in eq.c.
        
2005-01-07  Marius Vollmer  <mvo@zagadka.de>

        Make the uniform vector routines also deal with one dimensional
        arrays.
        
        * srfi-4.c (SCM_IS_UVEC): New, use it instead of
        SCM_SMOB_PREDICATE in this file.
        (is_uvec): Also recognize one-dimensional uniform numeric arrays
        of the right type.
        (scm_is_uniform_vector): Likewise.
        (uvec_fast_ref): Made BASE param const.
        (uvec_writable_elements, uvec_elements): New.
        (uvec_to_list, uvec_ref, uvec_set_x, uvec_length,
        scm_c_uniform_vector_length, scm_c_uniform_vector_ref,
        scm_c_uniform_set_x): Use them to also deal with one-dimensional
        arrays.
        (scm_uniform_vector_ref, scm_uniform_vector_set_x): Deprecate old
        argument convention.
        (scm_uniform_vector_to_list): Let uvec_to_list do all the
        checking.
        (scm_uniform_vector_length): Use uvec_length.
        
2005-01-06  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * srfi-4.h, srfi-4.c (scm_c_uniform_vector_element_size,
        scm_c_uniform_vector_size): Removed.
        (scm_array_handle_uniform_element_size): New.
        

        * unif.h (scm_array_handle_ref, scm_array_handle_set): Changed
        type of POS parameter to be signed, positions can be negative.
        (scm_array_handle_release): New, changed all uses of
        scm_t_array_handle to properly call it.
        (scm_vector_get_handle, scm_generalized_vector_get_handle):
        Renamed former to latter, changed all uses.
        
2005-01-05  Marius Vollmer  <mvo@zagadka.de>

        Updated bitvector routines to also use scm_t_array_handles.
        
        * unif.h (scm_bitvector_elements,
        scm_bitvector_writable_elements): Use a scm_t_array_handle and
        deliver offset, length and increment to caller.  Changed all uses.
        (scm_bitvector_release_elements,
        scm_frame_bitvector_release_elements,
        scm_bitvector_release_writable_elements,
        scm_frame_bitvector_release_writable_elements): Removed.
        (scm_array_handle_bit_elements,
        scm_array_handle_bit_writable_elements,
        scm_array_handle_bit_elements_offset): New.
        (scm_make_typed_array): The special value for non-initialized
        arrays is now SCM_UNSPECIFIED.  The old special value SCM_BOOL_F
        was a valid value to fill bitvectors with, so it can't really be
        specialed out.
        
2005-01-04  Kevin Ryde  <user42@zip.com.au>

        * stime.c (scm_strftime): Free t.tm_zone produced by bdtime2c.
        Reported by Bill Schottstaedt.

2005-01-02  Marius Vollmer  <mvo@zagadka.de>

        * sort.c (quicksort): Added INC parameter for non-contigous
        vectors.
        (quicksort1): New, for contigous vectors.  Both functions are
        generated from the same code by including "quicksort.i.c".
        (scm_restricted_vector_sort_x): Call one of quicksort and
        quicksort1, depending on increment of vector.
        (scm_sort): Simply call scm_sort_x on a copy of the list or
        vector.
        (scm_merge_vector_x, scm_merge_vector_step): Changed indices to
        size_t, added inc parameter.
        (scm_stable_sort_x): Allocate temporary storage as Scheme vector
        so that it doesn't leak.
        (scm_stable_sort): Simply call scm_stable_sort_x on a copy of the
        list or vector.
        
        * ramap.c (scm_array_map_x): Do not try to convert fill value
        before filling, any necessary conversion is done while storing.

        * gc-card.c (scm_i_sweep_card): Call scm_i_vector_free instead of
        doing it inline.

        * hashtab.c, hashtab.h (SCM_HASHTABLE_BUCKETS): Removed.
        (SCM_HASHTABLE_BUCKET, SCM_HASHTABLE_BUCKET_LOC): New.  Replaced
        all uses of SCM_HASHTABLE_BUCKETS with SCM_HASHTABLE_BUCKET.

        * tags.h, weaks.c, vports.c, hashtab.c, convert.c, sort.c,
        convert.c, convert.h, convert.i.c, deprecated.c, environments.c,
        eval.c, filesys.c, fluids.c, gc-mark.c, gh.h, gh_data.c, goops.c,
        hash.c, init.c, libguile_la-arrays.loT, modules.c, net_db.c,
        objects.c, ports.c, posix.c, print.c, random.c, read.c,
        regex-posix.c, scmsigs.c, socket.c, stime.c, symbols.c: Use new
        vector elements API or simple vector API, as appropriate.  Removed
        SCM_HAVE_ARRAYS ifdefery.  Replaced all uses of
        SCM_HASHTABLE_BUCKETS with SCM_HASHTABLE_BUCKET.
        
        * srfi-4.h, srfi-4.c,
        srfi-4.i.c (scm_array_handle_uniform_elements,
        scm_array_handle_uniform_writable_elements,
        scm_uniform_vector_elements,
        scm_uniform_vector_writable_elements):
        (scm_<foo>vector_elements, scm_<foo>vector_writable_elements): Use
        scm_t_array_handle, deliver length and increment.
        (scm_array_handle_<foo>_elements,
        scm_array_handle_<foo>_writable_elements): New.
        
        * gen-scmconfig.h.in (SCM_I_GSC_HAVE_ARRAYS): Removed.
        * gen-scmconfig.c: Hard code SCM_HAVE_ARRAYS to "1".
        
        * unif.h, unif.c (scm_t_array_handle, scm_array_get_handle,
        scm_array_handle_rank, scm_array_handle_dims, scm_array_handle_ref
        scm_array_handle_set, scm_array_handle_elements
        scm_array_handle_writable_elements, scm_vector_get_handle): New.
        (scm_make_uve, scm_array_prototype, scm_list_to_uniform_array,
        scm_dimensions_to_uniform_array): Deprecated for real.
        (scm_array_p, scm_i_array_p): Use latter for SCM_DEFINE since
        snarfing wont allow a mismatch between C and Scheme arglists.
        (scm_make_shared_array, scm_enclose_array): Correctly use
        scm_c_generalized_vector_length instead of
        scm_uniform_vector_length.
        
        * validate.h (SCM_VALIDATE_VECTOR,
        SCM_VALIDATE_VECTOR_OR_DVECTOR): use scm_is_simple_vector instead
        of SCM_VECTORP.

        * weaks.h, weaks.c: Use new internal weak vector API from
        vectors.h.

        * Makefile.am (libguile_la_SOURCES, DOT_X_FILES, DOT_DOC_FILES,
        EXTRA_libguile_la_SOURCES): Changed ramap.c and unif.c from being
        'extra' to being regular sources.
        (noinst_HEADERS): Added quicksort.i.c.
        * quicksort.i.c: New file.

        * vectors.h, vector.c (SCM_VECTORP, SCM_VECTOR_LENGTH, SCM_VELTS,
        SCM_WRITABLE_VELTS, SCM_VECTOR_REF, SCM_VECTOR_SET): Deprecated
        and reimplemented.  Replaced all uses with scm_vector_elements,
        scm_vector_writable_elements, or SCM_SIMPLE_VECTOR_*, as
        appropriate.
        (scm_is_simple_vector, SCM_SIMPLE_VECTOR_LENGTH,
        SCM_SIMPLE_VECTOR_REF, SCM_SIMPLE_VECTOR_SET,
        SCM_SIMPLE_VECTOR_LOC): New.
        (SCM_VECTOR_BASE, SCM_SET_VECTOR_BASE, SCM_VECTOR_MAX_LENGTH,
        SCM_MAKE_VECTOR_TAG, SCM_SET_VECTOR_LENGTH,
        SCM_VELTS_AS_STACKITEMS, SCM_SETVELTS, SCM_GC_WRITABLE_VELTS):
        Removed.
        (scm_vector_copy): New.
        (scm_vector_elements, scm_vector_writable_elements): Use
        scm_t_array_handle, deliver length and increment.  Moved to
        unif.h. Changed all uses.
        (scm_vector_release_elements,
        scm_vector_release_writable_elements,
        (scm_frame_vector_release_elements,
        scm_frame_vector_release_writable_elements): Removed.
        (SCM_I_IS_VECTOR, SCM_I_VECTOR_ELTS, SCM_I_VECTOR_WELTS,
        SCM_I_VECTOR_LENGTH, scm_i_vector_free): New internal API.
        (SCM_I_WVECTP SCM_I_WVECT_LENGTH SCM_I_WVECT_VELTS
        SCM_I_WVECT_GC_WVELTS SCM_I_WVECT_TYPE SCM_I_WVECT_GC_CHAIN
        SCM_I_SET_WVECT_GC_CHAIN, scm_i_allocate_weak_vector): New, for
        weak vectors.

2004-12-29  Marius Vollmer  <mvo@zagadka.de>

        No longer use creators to specify the type of an array.  Creators
        expose the fact that arrays are wrapped around vectors, but that
        might change.
        
        * srfi-4.h (scm_i_proc_make_u8vector, scm_i_proc_make_s8vector,
        scm_i_proc_make_u16vector, scm_i_proc_make_s16vector,
        scm_i_proc_make_u32vector, scm_i_proc_make_s32vector,
        scm_i_proc_make_u64vector, scm_i_proc_make_s64vector,
        scm_i_proc_make_f32vector, scm_i_proc_make_f64vector,
        scm_i_proc_make_c32vector, scm_i_proc_make_c64vector,
        uvec_proc_vars): Removed.
        (scm_i_generalized_vector_creator): Removed.
        (scm_i_generalized_vector_type): New.

        * unif.h, unif.c (scm_typed_array_p, scm_make_array,
        scm_make_typed_array, scm_array_type, scm_list_to_array,
        scm_list_to_typed_array, scm_is_array, scm_is_typed_array): New.
        (scm_array_creator): Removed.
        (scm_array_p): Deprecated second PROT argument.
        (scm_dimensions_to_uniform_array, scm_list_to_uniform_array):
        Deprecated, reimplemented in terms of scm_make_typed_array and
        scm_list_to_typed_array.
        (scm_i_proc_make_vector, scm_i_proc_make_string,
        scm_i_proc_make_bitvector): Removed.
        (type_creator_table, init_type_creator_table, type_to_creator,
        make_typed_vector): New.
        (scm_i_convert_old_prototype): Removed.
        (prototype_to_type): New.
        (scm_make_uve): Deprecated, reimplemented using make_typed_vector.
        (scm_array_dimensions): Use scm_list_1 instead of scm_cons for
        minor added clarity.
        (scm_make_shared_array, scm_ra2contig): Use make_typed_vector
        instead of scm_make_uve.
        (tag_creator_table, scm_i_tag_to_creator): Removed.
        (tag_to_type): New.
        (scm_i_read_array): Use scm_list_to_typed_array instead of
        scm_list_to_uniform_array.
        
2004-12-27  Marius Vollmer  <mvo@zagadka.de>

        * unif.h, unif.c (scm_bitvector_elements): Made return value "const".
        (scm_bitvector_writable_elements): New.
        (scm_bitvector_release, scm_bitvector_release_elements):
        Renamed former to latter.  Added explicit call to
        scm_remember_upto_here_1.
        (scm_frame_bitvector_release,
        scm_frame_bitvector_release_elements): Renamed former to latter.
        (scm_bitvector_release_writable_elements,
        scm_bitvector_release_writable_elements): New.
        Changed all uses as required by the changes above.

        * srfi-4.h, srfi-4.c, srfi-4.i.c (scm_uniform_vector_elements,
        scm_u8vector_elements, etc): Made return value "const".
        (scm_uniform_vector_writable_elements,
        scm_u8vector_writable_elements, etc): New.
        (scm_uniform_vector_release, scm_uniform_vector_release_elements):
        Renamed former to latter.  Added explicit call to
        scm_remember_upto_here_1.
        (scm_frame_uniform_vector_release,
        scm_frame_uniform_vector_release_elements): Renamed former to latter.
        (scm_uniform_vector_release_writable_elements,
        scm_frame_uniform_vector_release_writable_elements): New. Takes
        crown of longest identifier yet.
        Changed all uses as required by the changes above.
        
        * vectors.h, vectors.c (scm_c_vector_set_x): Make return type
        void.
        (scm_is_vector, scm_vector_p, scm_vector_length,
        scm_c_vector_length, scm_vector_ref, scm_c_vector_ref,
        scm_vector_set_x, scm_c_vector_set_x, scm_vector_to_list,
        scm_vector_move_left_x, scm_vector_move_right_x,
        scm_vector_fill_x): handle one-dimensional arrays.
        (scm_vector_elements, scm_vector_release_elements,
        scm_vector_frame_release_elements, scm_vector_writable_elements,
        scm_vector_release_writable_elements,
        scm_vector_frame_release_writable_elements): New.
        (scm_list_to_vector, scm_vector_to_list, scm_vector_fill,
        scm_vector_move_left_x, scm_vector_move_right_x): Use them.

        * ramap.c (scm_ramapc, scm_raeql): Use
        scm_c_generalized_vector_length instead of
        scm_uniform_vector_length.
        (scm_ramap, rafe): Use scm_c_vector_ref instead of SCM_VELTS.  use
        scm_c_generalized_vector_ref instead of scm_uniform_vector_ref.
                
2004-12-23  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * continuations.h, continuations.c (scm_t_contregs): New 'offset'
        member for relocating debug frames.
        (scm_make_continuation): Set it.

        * stacks.c (read_frame, read_frames, scm_make_stack,
        scm_last_stack_frame, scm_stack_id): Use the new 'offset' member
        of continuations instead of calculating the offset ourselves.
        Relocate 'vect' member of scm_t_debug_frame.
        
2004-12-16  Kevin Ryde  <user42@zip.com.au>

        * ramap.c (scm_array_map_x): Check for at least one source argument.

2004-12-14  Kevin Ryde  <user42@zip.com.au>

        * srfi-13.c (string-any, string-every): Use a scheme wrapper around
        the C code so for the final call to the predicate procedure is a tail
        call, per SRFI-13 spec.

2004-12-10  Kevin Ryde  <user42@zip.com.au>

        * eq.c (scm_eq_p, scm_eqv_p, scm_equal_p): Update docstrings from
        recent revision to the reference manual.

        * numbers.c (scm_modulo): Amend fixme comment about negative divisor
        with "%", C99 says it's well-defined.

        * socket.c (scm_from_ipv6): Just use mpz_import.  Don't bother trying
        to fit scm_from_ulong_long, since that uses mpz_import anyway.  Don't
        bother trying to fit scm_from_ulong, not really worth the trouble if
        addresses are more than 4 bytes usually.

2004-11-30  Kevin Ryde  <user42@zip.com.au>

        * gc_os_dep.c (NetBSD): Test __m68k__ and __arm__ as well as m68k and
        arm32.  Reported by Greg Troxel.

2004-11-14  mvo  <mvo@zagadka.de>

        * unif.c, unif.h (scm_i_cvref): Made non-static for ramap.c.

        * Makefile.am (INCLUDES): It is "@LTDLINCL@", not "@LTDLINC@".

2004-11-12  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        Enclosed arrays are now their own smob.  This has been done to
        make the code more explicit about them and to prepare for the time
        when generalized vectors include arbitrary one-dimensional
        arrays. (Uptonow, enclosed arrays have been recognized by their
        use of an array as their storage 'vector'.  When all generalized
        vectors are allowed as storage, including one-dimensional arrays,
        this will no longer work.)
        
        * unif.h, unif.c: (scm_tc16_enclosed_array, SCM_ENCLOSED_ARRAYP):
        New.
        (exactly_one_third, singp): Removed.
        (scm_array_p, scm_array_dimensions, scm_shared_array_root,
        scm_shared_array_offset, scm_shared_array_increments): Handle
        enclosed arrays explicitely.
        (scm_array_rank): Likewise. Also, do not return zero for
        non-arrays, signal an error instead since arrays with rank zero do
        exist.
        (scm_i_make_ra): New, for specifying the tag of the new array.
        (scm_make_enclosed_array): Use it.
        (scm_make_ra): Reimplemented in terms of scm_i_make_ra.
        (scm_make_shared_array): Use scm_c_generalized_vector_length
        instead of scm_uniform_vector_length.
        (scm_array_in_bounds_p): Rewritten to be much cleaner.
        (scm_i_cvref): New, doing the job of scm_cvref.
        (scm_cvref): Use scm_i_cvref.
        (scm_array_ref): Do not accept non-arrays when no indices are
        given. Use scm_i_cvref to do the actual access.
        ("uniform-array-set1"): Do not register.
        (scm_array_set_x, scm_uniform_array_read_x,
        scm_uniform_array_write): Handle enclosed arrays explicitly.
        (ra2l): Use scm_i_cvref instead of scm_uniform_vector_ref to also
        handle enclosed arrays.
        (scm_array_to_list): Handle enclosed arrays explicitly.
        (rapr1): Removed.
        (scm_i_print_array_dimension): Use scm_i_cvref to also handle
        enclosed arrays.
        (scm_i_print_enclosed_array): New.
        (tag_proto_table, tag_creator_table): Renamed former to latter.
        Added "a" and "b" for strings and bitvectors, resp.
        (scm_i_tag_to_prototype, scm_i_tag_to_creator): Renamed former to
        latter.  Tag "a" is in the table now, no need to handle it as a
        legacy tag.
        (scm_raprin1): Just call scm_iprin1.
        (scm_array_creator, scm_array_prototype): Handle enclosed arrays
        explicitly.
        (scm_init_unif): Initialize scm_tc16_enclosed_array smob.
        Use scm_i_print_array as printer for scm_tc16_array.
        
2004-11-10  Marius Vollmer  <mvo@zagadka.de>

        * ramap.c (cind): Changed second arg to be pointer to long instead
        of uniform vector.
        (scm_ramapc): Allocate index vector with scm_malloc and not as
        uniform vector.  Wrap it in a frame so that it gets properly freed.
        (scm_array_index_map_x): Likewise.

        * unif.c: Changed all uses of scm_array_prototype to
        scm_array_creator. (scm_i_get_old_prototype): Signal error when no
        prototype is known.
        (scm_uniform_array_read_x, scm_uniform_array_write): Reimplemented
        in terms of scm_uniform_vector_read_x and
        scm_uniform_vector_write, respectively.  Strings and
        bitvector support has been dropped.
        
        * srfi-4.h, srfi-4.c: Do not include <libguile.h>, include the
        needed files directly.  Include config.h, <unistd.h> and <io.h>
        when available.
        (scm_uniform_vector_read_x, scm_uniform_vector_write): New.

2004-11-09  Marius Vollmer  <mvo@zagadka.de>

        * gh_data.c (gh_uniform_vector_length): Properly use
        scm_c_uniform_vector_length instead of scm_uniform_vector_length.

2004-11-09  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * srfi-4.h (scm_c_uniform_vector_ref, scm_c_uniform_vector_set_x):
        New.
        (scm_i_uniform_vector_creator): Removed.
        (scm_i_generalized_vector_creator): New.
        (scm_uniform_vector_length, scm_uniform_element_size): Do not
        handle generalized vectors, only uniform numeric vectors.
        (alloc_uvec): Do length check here...
        (make_uvec): ...but not here.
        (coerce_to_uvec): Use new generalized vector functions to handle
        all kinds of vectors in one go.
        
        * tags.h (scm_tc7_bvect): Renamed to scm_tc7_unused7, renaming the
        remaining scm_tc7_unused tags to get a neatly ordered list.

        * eq.c, evalext.c, gc-card.c, gc-mark.c, objects.c, print.c: Do no
        longer handle scm_tc7_bvect bitvectors.

        * ramap.c: Use the new generalized vector functions to handle all
        vector like things.

        * vectors.h, vectors.c (scm_is_vector, scm_c_vector_length,
        scm_c_vector_ref, scm_c_vector_set_x, scm_generalized_vector_p,
        scm_generalized_vector_length, scm_generalized_vector_ref,
        scm_generalized_vector_set_x, scm_generalized_vector_to_list,
        scm_is_generalized_vector, scm_c_generalized_vector_length,
        scm_c_generalized_vector_ref, scm_c_generalized_vector_set_x):
        New.
        
        * unif.h, unif.c (scm_bitvector_p, scm_bitvector,
        scm_make_bitvector, scm_bitvector_length, scm_bitvector_ref,
        scm_bitvector_set_x, scm_list_to_bitvector, scm_bitvector_to_list,
        scm_bitvector_fill_x, scm_is_bitvector, scm_c_make_bitvector,
        scm_c_bitvector_length, scm_c_bitvector_ref,
        scm_c_bitvector_set_x, scm_bitvector_elements,
        scm_bitvector_release, scm_frame_bitvector_release,
        scm_tc16_bitvector, bitvector_free, bitvector_print,
        bitvector_equalp, count_ones, find_first_one): New.
        (scm_bit_count, scm_bit_position, scm_bit_set_star_x,
        scm_bit_count_star, scm_bit_invert_x, scm_istr2bve): Rewritten
        using the new C API for bitvectors and maybe count_ones or
        find_first_one, as appropriate.
        (SCM_I_MAX_LENGTH, SCM_BITVECTOR_P, SCM_BITVECTOR_BASE,
        SCM_SET_BITVECTOR_BASE, SCM_BITVECTOR_MAX_LENGTH,
        SCM_BITVECTOR_LENGTH, SCM_MAKE_BITVECTOR_TAG,
        SCM_SET_BITVECTOR_LENGTH): Removed.  Replaced all uses with the
        new functions from above.
        (scm_i_proc_make_vector, scm_i_proc_make_string,
        scm_i_proc_make_bitvector): Made non-static for use in
        scm_i_generalized_vector_creator.
        (scm_make_u1vector): Removed, replaced by scm_make_bitvector.
        (scm_make_uve): Validate that the created object is a generalized
        vector.
        (scm_i_legacy_tag): Removed.
        (scm_i_print_array): Do it here.
        (scm_raprin1): Only print enclosed arrays.

        * Makefile.am (DOT_DOC_FILES): Added srfi-4.doc.

2004-11-04  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * srfi-4.c (make_uvec): Use SCM_I_SIZE_MAX instead of SIZE_MAX for
        added portability.

        * chars.c (scm_charnames, scm_charnums): Added "sp" as an alias
        for "space".  Thanks to Bruce Korb!

        * rw.c (scm_read_string_x_partial): Bugfix, apply offset to dest
        only after dest has been set.  Thanks to Hyper Division!

        * gh_data.c (gh_uniform_vector_length): Use
        scm_uniform_vector_length instead of SCM_UVECTOR_LENGTH.

2004-11-03  Marius Vollmer  <mvo@zagadka.de>

        * unif.h (SCM_UVECTOR_BASE, SCM_SET_UVECTOR_BASE,
        SCM_UVECTOR_MAXLENGTH, SCM_UVECTOR_LENGTH, SCM_MAKE_UVECTOR_TAG,
        SCM_SET_UVECTOR_LENGTH): Removed.

2004-11-02  Marius Vollmer  <mvo@zagadka.de>

        Mac OS X and OpenBSD compatibility patches from Andreas Vögele.
        Thanks!

        * backtrace.c (scm_display_backtrace_with_highlights): Join the
        first and the second line of the SCM_DEFINE macro call, since old
        preprocessors cannot handle definitions that are split into two
        lines.

        * inline.h (scm_cell, scm_double_cell): Don't use C99 variable
        declarations.

        * pairs.c (scm_i_chase_pairs): Replace scm_t_bits with
        scm_t_uint32 to fix the mismatch between the function declaration
        and definition.

        * sort.c (quicksort): Don't use C99 variable declarations.

        * srfi-4.c (uvec_fast_ref): Avoid a compiler warning by returning
        SCM_BOOL_F if no type matches.

        * threads.c (thread_print): Cast a pointer to size_t when printing
        with scm_uintprint.

        * unif.c (scm_i_tag_to_prototype): Make sure that "instead" gets
        defined.
        (scm_array_prototype): Deprecated.

2004-11-02  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * srfi-4.h, srfi-4.c (scm_frame_uniform_vector_release): New.
        * unif.c (scm_bit_set_star_x, scm_bit_count_star_x): Use it to get
        more efficient access to the u32vector.
        
        * tags.h (scm_tc7_llvect, scm_tc7_uvect, scm_tc7_fvect,
        scm_tc7_dvect, scm_tc7_cvect, scm_tc7_svect, scm_tc7_byvect,
        scm_tc7_ivect): Renamed to scm_tc7_unused_1 to scm_tc7_unused_8.

        * validate.h (SCM_VALIDATE_VECTOR_OR_DVECTOR): Accept f64vectors
        instead of the old-style dvectors.

        * gh_data.c: Use new-style uniform arrays in place of old-style
        ones.

        * eq.c, evalext.c, gc-card.c, gc-mark.c, objects.c, print.c,
        ramap.c, unif.c: Do no longer handle old-style uniform vectors.

        * unif.c (scm_bit_set_star_x, scm_bit_count_star_x): Use u32vectors
        instead of old-sytle uvectors.
        
        * convert.c, convert.i.c: Rewritten completely, using
        scm_any_to_u8vector, etc and other new-style uniform vector
        functions.

        * random.c (scm_random_solid_sphere_x,
        scm_random_hollow_sphere_x): Do not validate vector argument, this
        is already done elsewhere.

        * srfi-4.h, srfi-4.i.c, srfi-4.c (coerce_to_uvec,
        scm_any_to_u8vector, etc): New.
        (scm_uniform_element_size, scm_uniform_vector_length): Do no
        longer handle old-style uniform vectors.

        * read.c (scm_lreadr): Bugfix: include the last bit in the
        bit vector.

2004-10-29  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * unif.h, unif.c (scm_array_creator): New.
        (scm_i_get_old_prototype): New.
        (scm_array_prototype): use it to return old-style prototype, never
        return creators.
        (scm_make_uve): Use scm_call_1 instead of scm_call_2 with a second
        arg of SCM_UNDEFINED.  The latter is wrong.
        
        * unif.h, unif.c (scm_make_u1vector): New, but only temporary.
        (make_uve): Removed.
        (scm_i_proc_make_vector, scm_i_proc_make_string,
        scm_i_proc_make_u1vector): New.
        (scm_init_unif): Initialize them.
        (scm_i_convert_old_prototype): New.
        (scm_make_uve): Use it to get the creator procedure.  Removed all
        old code that created old-style uniform vectors.
        (scm_array_p): Handle generic vectors.
        (scm_dimensions_to_uniform_array): Do not fill new array with
        prototype when that is a procedure.
        (scm_list_to_uniform_array): Also accept a list of lower bounds as
        the NDIM argument.
        (scm_i_print_array): Print rank for shared or non-zero-origin
        vectors.
        (tag_proto_table, scm_i_tag_to_prototype, scm_i_read_array): New.
        (scm_raprin1): Do not call scm_i_array_print for enclosed arrays,
        which I do not understand yet.
        (scm_array_prototype): Explicitely handle generic vectors.

        * numbers.c, number.h (scm_i_print_complex, icmplx2str): New.
        (iflo2str): Use icmplx2str for complex numbers.

        * srfi-4.c, srfi-4.h (scm_i_read_homogenous_vector,
        scm_i_uniform_vector_prototype): Removed.
        (scm_i_uniform_vector_creator): New.
        (SCM_UVEC_C32, scm_c32vector, scm_make_c32vector, etc,
        SCM_UVEC_C64, scm_c64vector, scm_make_c64vector, etc): New.
        Updated all tables and generic functions to support them.
        (scm_i_proc_make_u8vector, scm_i_proc_make_s8vector, etc): New.
        (scm_init_srfi_4): Initialize them.
        
        * srfi-4.i.c (scm_take_u8vector, etc): use uvec_sizes instead of
        sizeof(CTYPE) as explained in the comment.

        * read.c (scm_lreadr): Call scm_i_read_array for all characters
        following '#' that can start an array.  Explicitely disambiguate
        'i' and 'e' between introducing numbers and uniform vectors.  Do
        not call scm_i_read_homogenous_vector, since that is also handled
        by scm_i_read_array now.

2004-10-27  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        First cut at integrating uniform vectors from srfi-4 with the rest
        of Guile.  This change replaces scm_tc7_byvect with a s8 uniform
        vector.  The plan is to gradually replace one type after the other
        until none is left and then to consider general cleanups and
        optimizations.
        
        * srfi-4.h, srfi-4.i.c (scm_u8vector_elements, etc): New.

        * srfi-4.h, srfi-4.c (scm_uniform_vector_p,
        scm_uniform_vector_ref, scm_uniform_vector_set_x,
        scm_uniform_vector_to_list, scm_is_uniform_vector,
        scm_c_uniform_vector_lengths, scm_c_uniform_vector_size,
        scm_uniform_vector_elements, scm_uniform_vector_element_size,
        scm_uniform_vector_release): New.
        (scm_i_uniform_vector_prototype, scm_i_uniform_vector_tag): New.
        (scm_uniform_element_size, scm_uniform_vector_length): Moved here
        from unif.h, unif.c and extended to handle both the old and new
        uniform vectors.

        * tags.h (scm_tc7_byvect): Commented out.

        * unif.h, unif.c (scm_uniform_vector_ref, scm_array_ref): Renamed
        the former to the latter.
        (scm_uniform_vector_length, scm_uniform_element_size): Moved to
        srfi-4.h, srfi-4.c.
        (scm_make_uve): Call scm_make_s8vector for #\nul prototype.
        (scm_array_p, scm_array_rank, scm_array_dimensions,
        scm_transpose_array, scm_enclose_array, scm_array_ref, scm_cvref,
        scm_array_set_x, scm_array_contents, scm_uniform_array_read_x,
        scm_array_to_list, scm_array_prototype): Handle srfi-4 uniform
        vectors.  Removed code for scm_tc7_byvect.
        (scm_dimensions_to_uniform_array): Fill array with 0 when
        prototype is #\nul.
        (scm_i_print_array_dimension, scm_i_legacy_tag,
        scm_i_print_array): New.
        (scm_raprin1): Call scm_i_print_array for arrays.  Removed code
        for scm_tc7_byvect.

        * ramap.c (scm_ra_matchp, scm_array_fill_int, racp,
        scm_array_index_map_x, raeql_1, scm_array_equal_p): Handle srfi-4
        uniform vectors.  Removed code for scm_tc7_byvect

        * print.c (iprin1): Removed code for scm_tc7_byvect.
        * objects.c (scm_class_of): Likewise.
        * gc-mark.c (scm_gc_mark_dependencies): Likewise.
        * gc-card.c (scm_i_sweep_card): Likewise.
        * evalext.c (scm_self_evaluating_p): Likewise.
        * eq.c (scm_equal_p): Likewise.

        * gh_data.c (gh_chars2byvect): Reimplemented with
        scm_make_s8vector.
        (gh_scm2chars): Handle s8vectors, removed code for scm_tc7_byvect.

        * srfi-4.c (take_uvec): New.
        (alloc_uvec): Use it.
        * srfi-4.h, srfi-4.i.c (scm_take_u8vector, etc): New.

        * random.c (vector_scale, vector_scale_x): Renamed former to the
        latter, since it modifies its argument.
        (vector_scale_x, vector_sum_squares, scm_random_normal_vector_x):
        Do not use scm_universal_vector_length for non-uniform vectors.
        Use scm_f64vector_elements to access innards of uniform vectors.

        * convert.i.c: Convert srfi-4 style uniform vectors when
        requested.
        * convert.c (scm_c_scm2chars, scm_c_chars2scm,
        scm_c_chars2byvect): Use a s8vector instead of a scm_tc7_byvect.
        
2004-10-26  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * numbers.h, numbers.c (scm_i_print_double): New.

        * srfi-4.c, srfi-4.h, srfi-4.i.c: New files, initially from
        ../srfi/ but heavily modified.
        * Makefile.am: Add them in all the right places.
        * init.c (scm_init_guile_1): Call scm_init_srfi_4.
        * read.c (scm_lreadr): Call scm_i_read_homogenous_vector for '#f',
        '#u', and '#s'.

        * read.h, read.c (scm_i_input_error): Renamed from scm_input_error
        and made non-static.  Changed all uses.

2004-10-22  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * variable.c, threads.c, struct.c, stackchk.c, smob.c, root.c,
        print.c, ports.c, mallocs.c, hooks.c, hashtab.c, fports.c,
        guardians.c, filesys.c, coop-pthreads.c, continuations.c: Use
        scm_uintprint to print unsigned integers, raw heap words, and
        adresses, using a cast to scm_t_bits to turn pointers into
        integers.

        * unif.c: Include "libguile/print.h".

        * numbers.h, numbers.c (SCM_T_INTBUFLEN): Increased to cover
        scm_t_intmax values.
        (scm_uint2str): New, for scm_t_uintmax.
        (scm_iint2str): Argument type changed to scm_t_intmax,
        reimplemented in terms of scm_uint2str.
        
        * print.c, print.h (scm_uintprint): New, for printing
        scm_t_uintmax values.
        (scm_intprint): Argument type changed to scm_t_intmax.
        
        * sort.c (quicksort, scm_merge, scm_merge_list_x,
        scm_merge_list_step, scm_merge_vector_step): Inserted SCM_TICKs at
        strategic places so that the loops can be interrupted.

        * Makefile.am (INCLUDES): Use @LTDLINC@ instead of
        "-I$(top_srcdir)/libguile-ltdl".
        (libguile_la_LIBADD): Use @LIBLTDL@ instead of
        "../libguile-ltdl/libguile-ltdl.a".
        
        * guile.c, dynl.c: Switched to using libltdl directly.  Replaced
        all references to scm_lt_* with just lt_*.  Include <ltdl.h>
        instead of <libguile-ltdl.h>.

2004-10-20  Marius Vollmer  <mvo@zagadka.de>

        * sort.c (quicksort): Copy pivot out of the array while
        constructing the partitions; it could get overwritten otherwise.
        Because of the ultimate insertion sort, this bug did not cause
        quicksort to fail, it just put all the burdon on the insertion
        sort and was thus very slow.  Thanks to Rolan Orre for reporting
        the slowness!
        
2004-10-19  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * numbers.c (scm_i_range_error): New.
        * conv-integer.i.c, conv-uinteger.i.c: Use it instead of
        scm_out_of_range.       

        * sort.c (scm_restricted_vector_sort_x): Validate startpos <=
        endpos.  State inclusiveness/exclusiveness of bounds in docstring.

        * unif.c (scm_array_p): When no prototype is given, explicitely
        test for allowable types, do not simply return true.  Thanks to
        Roland Orre for reporting this!

        * private-gc.h (SCM_DEFAULT_MAX_SEGMENT_SIZE): Increase to 20 Mib.

        * gc-segment.c (scm_i_get_new_heap_segment): Limit size of new
        segment to scm_max_segment_size.

2004-10-08  Han-Wen Nienhuys  <hanwen@xs4all.nl>

        * gc.c (scm_igc): put scm_gc_running-- before running hooks.

        * inline.h (scm_double_cell): abort if GC running.
        (scm_cell): idem.

2004-10-04  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * error.c (scm_wrong_type_arg): Do not talk about "argument" for
        pos == 0.

        Keywords no longer store a 'dash symbol'.  Instead, they store a
        symbol with their real name.
        
        * keywords.h, keywords.c, deprecated.h, deprecated.c
        (SCM_KEYWORDP, SCM_KEYWORDSYM): Deprecated and implemented in
        terms of scm_is_keyword and scm_keyword_dash_symbol.
        
        * keywords.h, keywords.c, discouraged.h, discouraged.c
        (scm_make_keyword_from_dash_symbol, scm_keyword_dash_symbol,
        scm_c_make_keyword): Discouraged.

        * keywords.h, keywords.c (scm_symbol_to_keyword,
        scm_keyword_to_symbol): Implemented in C.
        (scm_is_keyword, scm_from_locale_keyword,
        scm_from_locale_keywordn): New.

        * goops.c: Replaced SCM_KEYWORDP with scm_is_keyword.   

        * snarf.h (SCM_KEYWORD, SCM_GLOBAL_KEYWORD): Use
        scm_from_locale_keyword instead of scm_c_make_keyword.

        * keywords.c (scm_symbol_to_keyword): Use SCM_ASSERT_TYPE for a
        better error message.

        * deprecated.c: Include discouraged.h and keywords.h.

        * read.c (scm_lreadr): Simply do (symbol->keyword (read)) after
        reading '#:' or ':'.  See NEWS for consequences.

2004-09-29  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * read.c (scm_lreadr): Revert change from 2004-09-22: string
        literals are now read-write again (until SCM_STRING_CHARS is
        removed).

        * strings.c (SCM_STRING_CHARS): Explicitely reject read-only
        strings with an error message that blames SCM_STRING_CHARS.

        * options.c (change_option_setting): Use scm_car instead of
        explicit type check plus SCM_CAR.

        * print.h, print.c (SCM_PRINT_HIGHLIGHT_PREFIX,
        SCM_PRINT_HIGHLIGHT_SUFFIX): New printer options.
        (scm_iprin1): Use them instead of the previoulsy hardcoded
        strings.
        (scm_init_print): Initialize them.

        * backtrace.c (display_frame_expr): Do not remove control
        characters from the final string.  Print it directly using
        scm_display.

        * ramap.c (scm_array_equal_p): Include scm_tc7_svect in switch.
        Thanks to Roland Orre!

2004-09-29  Kevin Ryde  <user42@zip.com.au>

        * regex-posix.c (scm_regexp_exec): Correction to last change, should
        be whole original string in match struct, not offsetted substring.

2004-09-24  Han-Wen Nienhuys   <hanwen@xs4all.nl>

        * gc.c (scm_gc_unprotect_object): abort if called during GC.

2004-09-24  Marius Vollmer  <mvo@zagadka.de>

        * Makefile.am (EXTRA_DIST): Added gettext.h.

        * smob.c, smob.h (scm_assert_smob_type): New.

        * Makefile.am (guile_CFLAGS, guile_LDFLAGS, libguile_la_CFLAGS):
        Include GUILE_CFLAGS.
        (libguile_la_LIBADD): Removed THREAD_LIBS_LOCAL, which is unused
        now.
        (libpath.h): Put GUILE_CFLAGS in the build-info.
        
2004-09-23  Marius Vollmer  <mvo@zagadka.de>

        * print.h (scm_print_state): Added highlight_objects.
        * print.c (make_print_state, scm_free_print_state): Initialize it
        to SCM_EOL.
        (scm_iprin1): Wrap output in '{...}' when object is contained in
        highlight_objects.

        * backtrace.h, backtrace.c (scm_display_backtrace_with_highlights,
        scm_backtrace_with_highlights): New.  Set highlight_objects of
        printstate.
        
        * error.c (scm_error_scm): Document new meaning of data/rest
        argument for out-of-range and wrong-type-arg errors.
        (scm_out_of_range, scm_out_of_range_pos, scm_wrong_type_arg,
        scm_wrong_type_arg_msg): Pass bad_value in rest argument of
        exception so that it gets highlighted in the backtrace.
        Don't talk about "argument" when not giving a position.
        
        * throw.c (handler_message): The rest argument is the fourth
        argument, not everything after the third.  Call
        scm_display_backtrace_with_highlights, passing the rest argument
        when appropriate.

2004-09-22  Marius Vollmer  <mvo@zagadka.de>

        From Jan Nieuwenhuizen <janneke@gnu.org> and Bruno Haible
        <bruno@clisp.org>:

        * i18n.c: Handle --disable-nls (thanks Bruno).

        * posix.c (scm_init_posix): Add LC_PAPER, LC_NAME, LC_ADDRESS,
        LC_TELEPHONE, LC_MEASUREMENT, LC_IDENTIFICATION.

        * i18n.c (scm_i_to_lc_category): New name and export.  Support all
        LC categories.
        * posix.c (scm_setlocale): Use it.

        * i18n.h, i18n.c (scm_textdomain, scm_bindtextdomain,
        scm_bind_textdomain_codeset): Make wrappers similar to C function
        they wrap.

        * i18n.h: New file.
        * i18n.c: New file.
        * gettext.h: New file, taken from GNU gettext.
        * init.c: Include libguile/i18n.h.
        (scm_init_guile_1): Add call to scm_init_i18n().
        * Makefile.am (libguile_la_SOURCES): Add i18n.c.
        (DOT_X_FILES): Add i18n.x.
        (DOT_DOC_FILES): Add i18n.doc.
        (libguile_la_LDFLAGS): Add @LTLIBINTL@.
        (modinclude_HEADERS): Add i18n.h.

2004-09-22  Marius Vollmer  <mvo@zagadka.de>

        * gh_list.c: Replaced SCM_CAR, etc with scm_car, etc.

        * discouraged.h, tags.h (SCM_CONSP, SCM_NCONSP): Moved to
        discouraged.h.  Replaced all uses with scm_is_pair.
        (SCM_I_CONSP): New name for SCM_CONSP.

        * pairs.h, pairs.c (scm_is_pair, scm_is_null, scm_car, scm_cdr,
        scm_i_chase_pairs, SCM_I_A_PAT, SCM_I_D_PAT, etc, scm_caar,
        scm_cadr, etc): New.
        (SCM_NULLP, SCM_NNULLP): Moved to discouraged.h.  Replaced all
        uses with scm_is_null.

        * eval.c (scm_eval, scm_apply, call_cxr_1): Use scm_i_chase_pairs
        instead of explicit code.

2004-09-22  Marius Vollmer  <mvo@zagadka.de>

        * srfi-13.c (scm_string_contains, scm_string_contains_ci):
        Reworded logic a bit so that #f is returned immediately when s1 is
        too short to contain s2.

        * regex-posix.c (scm_regexp_exec): Convert string to
        zero-terminated locale string before matching against it.

        * strings.h, strings.c (scm_substring_read_only,
        scm_c_substring_read_only, scm_i_substring_read_only): New.
        (RO_STRING_TAG, IS_RO_STRING): New.
        (scm_i_string_writable_chars): Bail on read-only strings. 
        
        * read.c (scm_lreadr): use scm_c_substring_read_only for string
        literals, thus making them read-only as specified by R5RS.

2004-09-22  Marius Vollmer  <mvo@zagadka.de>

        * eq.c (scm_equal_p): Allow smobs with different flags to be equal
        by testing for smobs before insisting on equal SCM_CELL_TYPES.

2004-09-21  Marius Vollmer  <mvo@zagadka.de>

        * numbers.h, numbers.c: Include <gmp.h> in numbers.h, not in
        numbers.c.
        (scm_to_mpz, scm_from_mpz): New.
        Thanks to Andreas Vögele!
        
        * read.c (skip_scsh_block_comment): Recognize "!#" everywhere, not
        just on a line of its own.

        * srfi-13.c (scm_string_any, scm_string_every,
        scm_string_tabulate, string_upcase_x, string_down_case_x,
        string_titlecase_x, string_reverse_x, scm_string_tokenize): Use
        size_t instead of int for indices into strings.  Make sure that no
        over- or underflow occurs.  Thanks to Andreas Vögele!
        (scm_xsubstring, scm_string_xcopy_x): Use ints for 'extended'
        indices, which can also be negative.
        
2004-09-20  Marius Vollmer  <mvo@zagadka.de>

        * gc-mark.c (SCM_MARK_BACKING_STORE): Removed, it was unused.

        * threads.c (scm_threads_mark_stacks): Call
        SCM_MARK_BACKING_STORE.  Also, do not use stack_len local, it was
        only used once.

2004-09-13  Jan Nieuwenhuizen  <janneke@gnu.org>

        * srfi-13.c (scm_string_contains, scm_string_contains_ci):
        Bugfix: when subtracting unsigned values, make sure that result
        does not wrap.

2004-09-09  Kevin Ryde  <user42@zip.com.au>

        * filesys.c, stime.c (_POSIX_C_SOURCE): Use this only on hpux, it
        causes too many problems elsewhere (glibc, freebsd, mingw).  Reported
        by Andreas Vögele.

2004-09-08  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * Makefile.am (EXTRA_libguile_la_SOURCES): Removed "alloca.c".

        * eq.c (real_eqv): Pretend that all NaNs are equal.

        * numbers.c (scm_integer_expt): Do not accept inexact integers.

2004-09-07  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * srfi-13.c (scm_string_trim_right, scm_string_xcopy_x): Correctly
        use size_t for some locals instead of int.

        * read.c (scm_flush_ws): Detect "#!"-style comments here.
        (scm_lreadr): Abort on seeing "#!", which should no longer happen.
        (skip_scsh_block_comment): Use scm_input_error instead of
        scm_misc_error in case of EOF.
        
2004-09-07  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_integer_expt): Reject exponent +/-inf.
        Bug report by Bill Schottstaedt.

        * ports.c (scm_getc, scm_lfwrite): Recognise \a \b and \r for port
        column.
        * ports.h (SCM_ZEROCOL, SCM_DECCOL): New macros.

        * posix.c (scm_access): Update docstring per manual.

        * posix.c (scm_nice): Correction to error detection.  Reported by
        Matthias Koeppe.

        * stime.c (scm_current_time, scm_gettimeofday, scm_strptime): Don't
        throw error before unlocking mutex with SCM_ALLOW_INTS.

2004-09-06  Kevin Ryde  <user42@zip.com.au>

        * stime.h (SCM_TIME_UNITS_PER_SECOND): Use sysconf(_SC_CLK_TCK) when
        available.  This also gets around CLK_TCK being absent when
        _GNU_SOURCE and _POSIX_C_SOURCE are defined in stime.c.

2004-09-03  Stefan Jahn  <stefan@lkcc.org>

        * threads.c (scm_threads_mark_stacks):  Fixed local variable
        definitions.

        * strings.c (scm_i_substring_copy, scm_string_append): Fixed
        local variable definitions.

        * stime.c (_POSIX_C_SOURCE):  Do not define this item on
        MinGW32 because it conflicts with its pthread headers.
        (scm_mktime): Consider the HAVE_STRUCT_TM_TM_ZONE define.
        (scm_strftime): Using scm_from_locale_string() instead of
        scm_makfrom0str().

        * posix.c (scm_putenv): Fixed typo in the !HAVE_UNSETENV
        part.

        * numbers.c (scm_init_numbers): Removed check_sanity() call
        inside GUILE_DEBUG.  The function has been removed somewhen...

        * filesys.c (_POSIX_C_SOURCE): Do not define this item on
        MinGW32 because it conflicts with its pthread headers.

2004-08-27  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * strings.c (SCM_STRINGP): Accept all strings.
        (SCM_STRING_CHARS): Reject shared substrings here.

        * script.c (scm_compile_shell_switches): Added 2003 and 2004 to
        the Copyright years.

2004-08-27  Kevin Ryde  <user42@zip.com.au>

        * socket.c (scm_fill_sockaddr): Use HAVE_STRUCT_SOCKADDR_SIN_LEN and
        HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN for sockaddr fields, SIN_LEN and
        SIN_LEN6 are not defined on all systems.  Reported by Michael Tuexen.

2004-08-26  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * strings.h, strings.c (scm_i_make_symbol): Added FLAGS parameter.
        * symbols.h, symbols.c (SCM_I_F_SYMBOL_UNINTERNED,
        scm_i_symbol_is_interned, scm_i_mem2symbol,
        scm_i_mem2uninternedsymbol): Use it to store uninternedness flag.

2004-08-25  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * srfi-13.c: First cut at thread-safeness and proper use of
        scm_i_string_chars et al.  Copious scm_remember_upto_heres have
        been inserted.  Made sure that no internal string pointer is used
        across a SCM_TICK or a possible GC.
        
        * script.c (scm_compile_shell_switches): Use
        scm_from_locale_string instead of scm_makfrom0str.

        * srfi-13.c (scm_string_rindex): Export to Scheme, as it has
        always been.

2004-08-25  Marius Vollmer  <mvo@zagadka.de>

        Moved SRFI-13 and SRFI-14 into the core, taking over the role of
        strop.c.

        * srfi-13.c, srfi-13.h, srfi-14.c, srfi-14.h: New files.
        * strop.h, strop.c: Removed, they are now empty.
        * Makefile.am: Updated for new and removed files.
        
        * symbols.h, symbols.c (scm_string_ci_to_symbol): Moved here, next
        to scm_string_to_symbol.

        * chars.c (scm_char_alphabetic_p, scm_char_numeric_p,
        scm_char_whitespace_p, scm_upper_case_p, scm_lower_case_p,
        scm_char_is_both_p): Use scm_char_set_contains_p with the proper
        charset instead of libc functions.

        * strorder.c (scm_string_equal_p, scm_string_ci_equal_p,
        scm_string_less_p, scm_string_leq_p, scm_string_gr_p,
        scm_string_geq_p, scm_string_ci_less_p, scm_string_ci_leq_p,
        scm_string_ci_gr_p, scm_string_ci_geq_p): Use scm_string_eq, etc
        instead of explicit code.
        
        * deprecated.c, load.c, posix.c, unif.c, symbols.c: Include
        "srfi-13.h" instead of "strop.h".

        * init.c (scm_init_guile_1): Call scm_init_srfi_13 and
        scm_init_srfi_14.  Do not call scm_init_strop.

2004-08-24  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * numbers.c (scm_inf_p): Synced docstring back from manual.

2004-08-22  Marius Vollmer  <mvo@zagadka.de>

        * strings.c (get_str_buf_start): New helper function.
        (scm_i_substring, scm_i_substring_copy, scm_i_substring_shared,
        scm_i_string_char, scm_i_string_writable_chars): Use it.
        (scm_i_substring_copy): Make START argument optional for C
        callers, for upcoming SRFI-13 integration.
        
2004-08-21  Marius Vollmer  <mvo@zagadka.de>

        From Richard Todd, Thanks!
        
        * script.c (scm_compile_shell_switches): added '-L' switch to add
        to the %load-path.
        
2004-08-21  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * eval.c (unmemoize_exprs): When dropping internal body markers
        from the output during unmemoization, also drop those that are not
        immediately at the beginning of a body.

2004-08-20  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * eval.c (scm_lookupcar1): Report "Variable used before given a
        value" insetad of an "Unbound" one for variables that are found
        but still contain SCM_UNDEFINED.

        * posix.c (scm_mkstemp): Correction to the correction, mkstemp
        expects a null-terminated string in the locale encoding, but
        scm_i_string_writable_chars doesn't give that.  Fixed by letting
        mkstemp modify a locale version of the tmpl argument and copying
        the result back into tmpl.
 
        * strop.c (scm_substring_move_x): Store into str2, not str1.

2004-08-20  Kevin Ryde  <user42@zip.com.au>

        * posix.c (scm_mkstemp): Correction to new locale_string stuff, need
        to modify the input string.

2004-08-19  Marius Vollmer  <mvo@zagadka.de>

        * deprecated.c (SCM_SYMBOL_CHARS): Cast away const in return.
        (SCM_SYMBOL_LENGTH): It's scm_i_symbol_length, not
        scm_c_symbol_length.

2004-08-19  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        New string implementation, with copy-on-write strings and
        mutation-sharing substrings, and a new internal string API.
        Symbols can now share memory with strings.
        
        * tags.h (scm_tc7_stringbuf): New tag.

        * strings.h, strings.c: (scm_i_string_chars, scm_i_string_length,
        scm_i_string_writable_chars, scm_i_string_stop_writing): New, to
        replace SCM_I_STRING_CHARS and SCM_I_STRING_LENGTH.  Updated all
        uses.
        (scm_i_make_string, scm_c_make_string): New, to replace
        scm_allocate_string.  Updated all uses.
        (SCM_STRINGP, SCM_STRING_CHARS, SCM_STRING_UCHARS,
        SCM_STRING_LENGTH): Deprecated.
        (scm_allocate_string, scm_take_str, scm_take0str, scm_mem2string,
        scm_str2string, scm_makfrom0str, scm_makfrom0str_opt):
        Discouraged.  Replaced all uses with scm_from_locale_string or
        similar, as appropriate.
        (scm_c_string_length, scm_c_string_ref, scm_c_string_set_x,
        scm_c_substring, scm_c_substring_shared, scm_c_substring_copy,
        scm_substring_shared, scm_substring_copy): New.

        * symbols.c, symbols.h (SCM_SYMBOLP, SCM_SYMBOL_FUNC,
        SCM_SET_SYMBOL_FUNC, SCM_SYMBOL_PROPS, SCM_SET_SYMBOL_PROPS,
        SCM_SYMBOL_HASH, SCM_SYMBOL_INTERNED_P, scm_mem2symbol,
        scm_str2symbol, scm_mem2uninterned_symbol): Discouraged.
        (SCM_SYMBOL_LENGTH, SCM_SYMBOL_CHARS, scm_c_symbol2str):
        Deprecated.
        (SCM_MAKE_SYMBOL_TAG, SCM_SET_SYMBOL_LENGTH, SCM_SET_SYMBOL_CHARS,
        SCM_PROP_SLOTS, SCM_SET_PROP_SLOTS): Removed.
        (scm_is_symbol, scm_from_locale_symbol, scm_from_locale_symboln):
        New, to replace scm_str2symbol and scm_mem2symbol, respectively.
        Updated all uses.
        (scm_gensym): Generate only the number suffix in the buffer, just
        string-append the prefix.

        * error.c (scm_memory_error): Do not try to throw, just abort.
        Throwing will not work anyway.

        * gh.h, gh-data.c (gh_set_substr): Made src const.

        * ports.c (scm_i_mode_bits_n): New, for counted strings.
        (scm_mode_bits): Use it.
        (scm_c_port_for_each): Blocking GC does not seem to work, allocate
        a vector normally and fill that instead of consing a list with a
        blocked GC.

        * read.c (scm_i_casei_streq): New, for counted strings.

        * threads.c (gc_section_count): Removed, thread-sleeping can not
        be nested.
        (scm_i_thread_put_to_sleep): Call scm_i_leave_guile before locking
        admin mutex so that we can be put to sleep by other threads while
        blocking on that mutex.  Lock all the heap mutex of all threads,
        including ourselves.
        (scm_i_thread_wake_up): Unlock all threads, including ourselves,
        call scm_i_enter_guile.
        (scm_thread_mark_stacks): Expect all threads to be suspended.
        
        * gc.h, gc.c (scm_i_gc_admin_mutex): New, to protect
        scm_gc_mallocated, for now.
        (scm_init_storage): Initialize it.
        * gc-malloc.c (descrease_mtrigger, increase_mtrigger): Use it.
        
        * gc-mark.c (scm_gc_mark_dependencies): Call scm_i_string_mark,
        scm_i_stringbuf_mark and scm_i_symbol_mark, as appropriate.
        * gc-card.c (scm_i_sweep_card):  Call scm_i_string_free,
        scm_i_stringbuf_free and scm_i_symbol_free, as appropriate.

        * strop.c (scm_string_copy): Use scm_c_substring to get a
        copy-on-write string.

2004-08-18  Kevin Ryde  <user42@zip.com.au>

        * arbiters.c (FETCH_STORE): New macro.
        (SCM_LOCK_VAL, SCM_UNLOCK_VAL): New constants.
        (SCM_LOCK_ARB, SCM_UNLOCK_ARB): Remove, effectively absorbed into
        scm_try_arbiter and scm_release_arbiter.
        (scm_try_arbiter, scm_release_arbiter): Use FETCH_STORE to get xchg
        for speed on i386, otherwise using mutex.

        * eq.c (scm_equal_p): Remove real==fraction and fraction==real, they
        must be #f according to R5RS.  (equal? follows eqv?, and for eqv? an
        exact and inexact is #f.)

        * fports.c (fport_print): Use scm_ttyname instead of ttyname directly,
        to get thread safety of scm_ttyname.

        * ports.c (ttyname): Remove prototype, unused.

        * socket.c (scm_init_socket): Add SOCK_SEQPACKET and SOCK_RDM.
        Reported by Michael Tuexen.

2004-08-13  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * load.c (scm_init_load_path): Do not pass NULL to
        scm_to_locale_string, which would happen when GUILE_LOAD_PATH is
        not set.  Thanks to Bill Schottstaedt.

2004-08-12  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * socket.c (scm_inet_aton, scm_inet_pton): Convert SCM strings to
        locale strings instead of accessing their internals.
        (scm_recv, scm_send, scm_recvfrom, scm_sendto): Use
        SCM_I_STRING_CHARS and SCM_I_STRING_LENGTH instead of
        SCM_STRING_CHARS and SCM_STRING_LENGTH.
        
        * simpos.c (scm_system): Convert SCM strings to locale strings
        instead of accessing their internals.

        * script.c (scm_compile_shell_switches): Convert version to locale
        string before printing it.

        * rdelim.c (scm_read_delimited_x): Avoid
        SCM_VALIDATE_SUBSTRING_SPEC_COPY and use scm_from_size_t instead
        of scm_from_long for the returned number of read characters.

        * ioext.c (scm_fdopen): Use scm_i_fdes_to_port together with
        scm_i_mode_bits to avoid accessing internals of SCM string from C.

        * filesys.c (STRING_SYSCALL, STRING2_SYSCALL): New helper macros.
        Use them instead of SCM_SYSCALL when one or two strings need to be
        converted into locale strings.
        (my_rename): New, gathers platform dependent code for renaming.
        (scm_rename): Use it.
        (scm_readlink, scm_copy_file): Convert SCM strings to locale
        strings instead of accessing their internals.
        (scm_basename, scm_dirname): Use SCM_I_STRING_CHARS and
        SCM_I_STRING_LENGTH instead of SCM_STRING_CHARS and
        SCM_STRING_LENGTH.
        
        * extensions.c (load_extension): Convert lib and init to locale
        strings instead of accessing the internals directly.
        (scm_c_load_extension): Use scm_from_locale_string instead of
        scm_makfrom0str.
        
        * fports.h, fports.c (scm_i_fdes_to_port): New, like
        scm_fdes_to_port, but take mode bits directly instead of as a C
        string.
        (scm_i_fdes_to_port): Implement using above.
        (scm_open_file): Use scm_i_fdes_to_port together with
        scm_i_mode_bits to avoid accessing internals of SCM string from C.
        * vports.c (scm_make_soft_port): Use scm_i_fdes_to_port together
        with scm_i_mode_bits to avoid accessing internals of SCM string
        from C.

        * ports.h (scm_i_mode_bits): New, same as scm_mode_bits but with a
        SCM string as argument.

        * ports.c (scm_i_void_port): New, like scm_void_port but take mode
        bits directly instead of C string.
        (scm_void_port): Implement using above.
        (scm_sys_make_void_port): Use scm_i_void_port together with
        scm_i_mode_bits to avoid accessing internals of SCM string.
        
        * strings.h, strings.c (scm_i_get_substring_spec): New.

        * socket.c, rw.c, deprecated.h, validate.h
        (SCM_VALIDATE_STRING_COPY): Deprecated.  Replaced all uses with
        SCM_VALIDATE_STRING plus SCM_I_STRING_CHARS or
        scm_to_locale_string, etc.
        (SCM_VALIDATE_SUBSTRING_SPEC_COPY): Deprecated.  Replaced as
        above, plus scm_i_get_substring_spec.
        
        * regex-posix.c, read.c, random.c, ramap.c, print.c, numbers.c,
        hash.c, gc.c, gc-card.c, convert.i.c, backtrace.c, strop.c,
        strorder.c, strports.c, struct.c, symbols.c, unif.c, ports.c: Use
        SCM_I_STRING_CHARS, SCM_I_STRING_UCHARS, and SCM_I_STRING_LENGTH
        instead of SCM_STRING_CHARS, SCM_STRING_UCHARS, and
        SCM_STRING_LENGTH, respectively.  Also, replaced scm_return_first
        with more explicit scm_remember_upto_here_1, etc, or introduced
        them in the first place.

        * posix.c (WITH_STRING): New helper macro.  Use it where one
        locale string is needed for a short piece of code.
        (STRING_SYSCALL): New helper macro.  Use it instead of SCM_SYSCALL
        when one locale string is needed.
        (scm_mkstemp): Convert tmpl to a locale string.
        (scm_putenv): Rewritten to use only C strings.
        (scm_setlocale, scm_crpt): Convert argument strings to locale
        strings.
        
2004-08-11  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * load.c (scm_primitive_load_path): Do not check for absolute
        filenames when scm_sys_search_load_path returns false, which will
        return absolute filenames unchanged.

2004-08-11  Marius Vollmer  <mvo@zagadka.de>

        * gc.c, procprop.c (scm_init_storage, scm_stand_in_procs,
        scm_stand_in_proc): Use a hastable for scm_stand_in_procs instead
        of an alist.  Thanks to Matthias Koeppe!

2004-08-10  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * strings.h, deprecated.h (SCM_STRING_COERCE_0TERMINATION_X):
        Moved from string.h to deprecated.h.

        * deprecated.c, deprecated.h (SCM_CHARS, SCM_LENGTH): Removed.

        * strings.h, strings.c (SCM_MAKE_STRING_TAG): Renamed to
        SCM_I_MAKE_STRING_TAG, changed all uses.
        (SCM_STRING_CHARS, SCM_STRING_UCHARS, SCM_STRING_LENGTH): Renamed
        to SCM_I_STRING_CHARS, SCM_I_STRING_UCHARS, and SCM_I_LENGTH
        respectively.  For a short time, the old names are still there as
        aliases.  Not all uses have been changed yet, but the ones in
        strings.c have.
        (SCM_STRING_MAX_LEN): Do not hardcode to 24 bits, compute from
        SCM_T_BITS_MAX.
        (scm_is_string, scm_from_locale_string, scm_from_locale_stringn,
        scm_take_locale_string, scm_take_locale_stringn,
        scm_to_locale_string, scm_to_locale_stringn,
        scm_to_locale_stringbuf): New.
        (scm_c_string2str, scm_c_substring2str): Deprecated by moving to
        deprecated.[hc]. Implemented in terms of the new functions above.
        (scm_take_str, scm_take0str, scm_mem2string, scm_str2string,
        scm_makfrom0str): Reimplemented in terms of the new functions from
        above.  They will be discouraged shortly.
        (scm_substring): Do not use scm_mem2string.
        (scm_i_allocate_string_pointers, scm_i_free_string_pointers): New,
        to replace similar code from posix.c, simpos.c, and dynl.c.
        (scm_string_append): Use memcpy instead of explicit loop.  Do not
        use register keyword.  Use plain 'char' instead of 'unsigned
        char'.
        
        * strports.c (scm_mkstrport): Use SCM_I_STRING_UCHARS instead of
        SCM_STRING_UCHARS.  Use SCM_I_STRINGP instead of SCM_STRINGP.

        * strop.c (scm_i_index): Replaced SCM_STRINGP, SCM_STRING_CHARS,
        and SCM_STRING_LENGTH with SCM_I_STRINGP, SCM_I_STRING_CHARS, and
        SCM_I_STRING_LENGTH, respectively.  Pass string object directly,
        not as a pointer.  Use scm_remember_upto_here_1 to protect it.

        * read.c (scm_input_error): Use a SCM value for 'fn', not a C
        string.  This avoids a conversion round-trip.

        * gh_data.c: Replaced SCM_STRINGP, SCM_STRING_CHARS, and
        SCM_STRING_LENGTH with SCM_I_STRINGP, SCM_I_STRING_CHARS, and
        SCM_I_STRING_LENGTH, respectively.
        (gh_scm2newstr): Implement in terms of scm_to_locale_string.
        
        * environments.c: Instead calling scm_puts on the SCM_STRING_CHARS
        of a string, call scm_display on the string itself.

        * dynwind.c, dynwind.h (scm_frame_free): New.

        * stime.c, socket.c, simpos.c, procs.c, posix.c, ports.c,
        net_db.c, fports.c, filesys.c, eval.c, deprecation.c, dynl.c:
        Replaced uses of SCM_STRING_CHARS with proper uses of
        scm_to_locale_string.  Replaced SCM_STRINGP with scm_is_string.
        Replaced scm_mem2string with scm_from_locale_string.

        * simpos.c, posix.c (allocate_string_pointers, environ_list_to_c):
        Removed, replaced all uses with scm_i_allocate_string_pointers.

        * load.h, load.c (scm_internal_parse_path): Removed.
        (scm_parse_path): Use scm_string_split to do the work.
        (scm_init_load_path): Use scm_parse_path instead of
        scm_internal_parse_path.
        (scm_search_path): Rewritten string handling part of the code in
        terms of scm_to_locale_stringbuf and so that it is thread safe.

        * error.c (scm_error_scm): Throw directly instead of calling
        scm_error, this avoids the back and forth conversion of SUBR and
        MESSAGE and also plugs a memory leak.
        (scm_error): Call scm_error_scm.
        
        * backtrace.c: Replaced SCM_STRINGP with scm_is_string.
        (display_header): Print FNAME when it is true, not
        merely when it is a string.

        * strings.h (SCM_SET_STRING_LENGTH, SCM_SET_STRING_CHARS): Removed
        unceremoniously.  They were unused by Guile itself, and external
        use should stop immediately.
        

2004-08-10  Marius Vollmer  <mvo@zagadka.de>

        * numbers.h, number.c, deprecated.h, deprecated.c (scm_round,
        scm_truncate): Renamed to scm_c_round and scm_c_truncate;
        deprecated versions installed in deprecated.h and deprecated.c.
        Changed all uses.
        
2004-08-06  Rob Browning  <rlb@defaultvalue.org>

        * net_db.c (scm_resolv_error): don't cause an exception while
        trying to throw an exception -- call scm_misc_error with correct
        arguments.  The previous arguments needed a format escape that
        wasn't in any of the format strings.

2004-08-06  Kevin Ryde  <user42@zip.com.au>

        * ramap.c (scm_array_fill_x): For byvect char fill, force signed char
        so as not to depend on signedness of plain char.  For byvect range
        check, throw out-of-range rather than wrong-type-arg.

        * unif.c (scm_uniform_vector_ref, scm_array_set_x): For byvect, force
        signed byte range checks by using scm_to_schar and scm_from_schar,
        don't want to depend on signedness of C char.

2004-08-05  Kevin Ryde  <user42@zip.com.au>

        * arbiters.c (scm_try_arbiter): Use scm_i_misc_mutex instead of
        SCM_DEFER_INTS.
        (scm_release_arbiter): Use scm_i_misc_mutex so return value can be
        guaranteed if multiple threads compete to unlock.
        Update docstrings per doc/ref/api-scheduling.texi.

        * filesys.c (scm_copy_file): Use fstat on the input fd rather than
        stat on the filename, to be certain a file rename can't mean we get
        info on one filesystem object but open another.  This fstat usage is
        similar to Emacs copy-file.
        
        * posix.c (scm_setgroups): Enhance docstring, per doc/ref/posix.texi.

        * simpos.c (scm_system_star): Change scm_from_long to scm_from_int on
        SIGINT and SIGQUIT, since those values are ints.

2004-08-03  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * num2integral.i.c, num2float.i.c: Removed.
        * Makefile.am (noinst_HEADERS): Updated.

        * numbers.h. numbers.c (scm_make_ratio): Renamed to
        scm_i_make_ratio and made static, replaced uses with scm_divide.
        (scm_complex_p): New, export as "complex?" to Scheme.
        (scm_number_p): Export as "number?" to Scheme.
        (scm_is_complex, scm_is_number): New.
        (scm_c_make_rectangular, scm_c_make_polar): New.
        (scm_make_rectangular, scm_make_polar): Use above.
        (scm_c_real_part, scm_c_imag_part, scm_c_magnitude, scm_c_angle):
        New.
        (scm_make_complex): Discouraged by moving to discouraged.h and
        discouraged.c.  Replaced all uses with scm_c_make_rectangular.
        
        * discouraged.h, discouraged.c, numbers.c, numbers.h
        (scm_is_rational): New.
        (scm_i_short2big, scm_i_int2big, scm_i_uint2big, scm_i_size2big,
        scm_i_ptrdiff2big, scm_i_long_long2big, scm_i_ulong_long2big):
        Removed prototypes.
        (scm_make_real, scm_num2dbl, scm_float2num, scm_double2num):
        Discouraged by moving to discouraged.h and discouraged.c.
        Replaced all uses with scm_from_double.
        (scm_num2float, scm_num2double): Discouraged by moving prototype
        to discouraged.h and rewriting in terms of scm_to_double.
        Replaced all uses with scm_to_double.
        (scm_to_double): Do not implement in terms of scm_num2dbl, use
        explicit code.
        (scm_from_double): Do not implement in terms of scm_make_real, use
        explicit code.
        
2004-08-02  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * init.c (scm_init_guile_1): Call scm_i_init_discouraged.

        * gen-scmconfig.h.in (SCM_I_GSC_ENABLE_DISCOURAGED): New.
        * gen-scmconfig.c (SCM_ENABLE_DISCOURAGED): Emit based on above.

        * eval.c (SCM_EVALIM, SCM_EVALIM2, SCM_XEVAL, SCM_XEVALCAR):
        Renamed to SCM_I_* in order to avoid collisions with the versions
        defined in deprecated.h.

        * discouraged.h, discouraged.c: New files.

        * deprecated.h (SCM_FALSEP, SCM_NFALSEP, SCM_BOOLP, SCM_EQ_P,
        SCM_NEGATE_BOOL, SCM_BOOL, SCM_BOOT_NOT): Promoted from being
        deprecated to being discouraged by moving to discouraged.h.

        * numbers.h, numbers.c, discouraged.h, discouraged.c
        (scm_short2num, scm_ushort2num, scm_int2num, scm_uint2num,
        scm_long2num, scm_ulong2num, scm_size2num, scm_ptrdiff2num,
        scm_num2short, scm_num2ushort, scm_num2int, scm_num2uint,
        scm_num2long, scm_num2ulong, scm_num2size, scm_num2ptrdiff,
        scm_long_long2num, scm_ulong_long2num, scm_num2long_long,
        scm_num2ulong_long): Discouraged by moving to discouraged.h and
        discouraged.c and reimplementing in terms of scm_from_* and
        scm_to_*.  Changed all uses to the new scm_from_* and scm_to_*
        functions.

        * numbers.h, numbers.c: Removed GUILE_DEBUG code.
        (scm_i_short2big, scm_i_ushort2big, scm_i_int2big, scm_i_uint2big,
        scm_i_size2big, scm_i_ptrdiff2big): Removed.
        (scm_i_long2big, scm_i_ulong2big): New, explicit definitions.  
        * conv-integer.i.c, conv-uinteger.i.c: Use them instead of
        explicit code.

2004-08-02  Kevin Ryde  <user42@zip.com.au>

        * __scm.h (SCM_DEFER_INTS, SCM_ALLOW_INTS): Add comments about past
        and current usage and migration.

2004-07-31  Kevin Ryde  <user42@zip.com.au>

        * error.c (scm_strerror): Use scm_i_misc_mutex around strerror since
        it's not thread safe.
        (scm_syserror): Use scm_strerror rather than SCM_I_STRERROR, to take
        advantage of this.
        * fports.c (scm_open_file): Use scm_strerror likewise.
        * filesys.c (scm_stat, scm_lstat): Ditto.

        * filesys.c (scm_copy_file): Avoid fd leak when destination file
        cannot be opened.

        * symbols.c (scm_gensym): Use scm_i_misc_mutex around gensym_counter
        update, for thread safety.
        (gensym_counter): Move into scm_gensym which is its only user.
        (scm_init_symbols): No need to explicitly initialize gensym_counter.

2004-07-29  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * numbers.h (scm_to_schar, scm_to_uchar, scm_to_char,
        scm_to_short, scm_to_ushort, scm_to_int, scm_to_uint, scm_to_long,
        scm_to_ulong, scm_to_long_long, scm_to_ulong_long, scm_to_intmax,
        scm_to_uintmax, scm_to_size_t, scm_to_ssize_t scm_from_schar,
        scm_from_uchar, scm_from_char, scm_from_short, scm_from_ushort,
        scm_from_int, scm_from_uint, scm_from_long, scm_from_ulong,
        scm_from_long_long, scm_from_ulong_long, scm_from_intmax,
        scm_from_uintmax, scm_from_size_t, scm_from_ssize_t): No longer
        defined in terms of scm_to_signed_integer, etc, but in terms of
        scm_to_int8, etc.

        * gen-scmconfig.c (SCM_SIZEOF_INTMAX, SCM_SIZEOF_SIZE_T): New.

        * gen-scmconfig.h.in: Removed SCM_I_GSC_*_LIMITS macros, they are
        no longer used.

        * __scm.h (SCM_I_UTYPE_MAX, SCM_I_TYPE_MAX, SCM_I_TYPE_MIN,
        SCM_I_SIZE_MAX, SCM_I_SSIZE_MIN, SCM_I_SSIZE_MAX): New.

        * __scm.h, gen-scmconfig.c (SCM_I_LLONG_MAX, SCM_I_LLONG_MIN,
        SCM_I_ULLONG_MAX, SCM_T_INT8_MIN, SCM_T_INT8_MAX, SCM_T_UINT8_MAX,
        SCM_T_INT16_MIN, SCM_T_INT16_MAX, SCM_T_UINT16_MAX,
        SCM_T_INT32_MIN, SCM_T_INT32_MAX, SCM_T_UINT32_MAX,
        SCM_T_INT64_MIN, SCM_T_INT64_MAX, SCM_T_UINT64_MAX,
        SCM_T_INTMAX_MIN, SCM_T_INTMAX_MAX, SCM_T_UINTMAX_MAX): Moved
        definition into __scm.h, using new SCM_I_TYPE_MIN, etc.
        
        * conv-integer.i.c, conv-uinteger.i.c: New files, used to generate
        the functions below.

        * Makefile.am (noinst_HEADERS): Added conv-integer.i.c and
        conv-uinteger.i.c.

        * numbers.c, numbers.h (scm_to_int8, scm_to_uint8, scm_to_int16,
        scm_to_uint16, scm_to_int32, scm_to_uint32, scm_to_int64,
        scm_to_uint64, scm_from_int8, scm_from_uint8, scm_from_int16,
        scm_from_uint16, scm_from_int32, scm_from_uint32, scm_from_int64,
        scm_from_uint64): Turned from macros into proper functions.
        (scm_to_signed_integer, scm_to_unsigned_integer,
        scm_from_signed_integer, scm_from_unsigned_integer): Generate via
        conv-integer.i.c and conv-uinteger.i.c, as well.
        
        * number.h (scm_to_ssize_t, scm_to_size_t): Use the new
        SCM_I_SSIZE_MIN, SCM_I_SSIZE_MAX, and SCM_I_SIZE_MAX macros for
        the limits.  Those are always defined.
        
2004-07-29  Kevin Ryde  <user42@zip.com.au>

        * posix.c (scm_ttyname): Use scm_i_misc_mutex for thread safety.

2004-07-28  Kevin Ryde  <user42@zip.com.au>

        * posix.c (scm_ctermid): Use an L_ctermid buf on the stack, for thread
        safety.

        * unif.c (scm_array_set_x): For svect, use scm_num2short for
        consistency with other vector types and to get arg and func name into
        error message.

2004-07-27  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * deprecated.h (SCM_FALSEP, SCM_NFALSEP, SCM_BOOLP, SCM_BOOL):
        Reimplement using scm_is_false, scm_is_true, scm_is_bool, and
        scm_from_bool, respectively.
        (SCM_NINUMP): Added.
        
        * tags.h, deprecated.h (SCM_EQ_P): Deprecated by moving it into
        deprecated.h.  Replaced all uses with scm_is_eq.

2004-07-24  Kevin Ryde  <user42@zip.com.au>

        * threads.c, threads.h (scm_i_misc_mutex): New SCM_GLOBAL_MUTEX.
        * posix.c (scm_crypt): Use it to protect static data in crypt().

2004-07-23  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * deprecated.h, deprecated.c, numbers.h (SCM_INUMP, SCM_NINUMP,
        SCM_INUM): Deprecated by renaming them to SCM_I_INUMP,
        SCM_I_NINUMP and SCM_I_INUM, respectively and adding deprecated
        versions to deprecated.h and deprecated.c.  Changed all uses to
        either use the SCM_I_ variants or scm_is_*, scm_to_*, or
        scm_from_*, as appropriate.

        * dynwind.c (scm_i_dowinds): Removed unused code that would call
        the unexisting scm_cross_dynwind_binding_scope for inums on the
        windlist.
        
2004-07-10  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * socket.c (ipv6_net_to_num, scm_from_ipv6): Renamed
        ipv6_net_to_num to scm_from_ipv6, for converting from an IPv6
        byte-wise address to a SCM integer.  Changed all uses.
        (ipv6_num_to_net, scm_to_ipv6): Renamed ipv6_num_to_net to
        scm_to_ipv6 and added type and range checking, for converting from
        an IPv& byte-wise address to a SCM integer.  Changed all uses.
        (bignum_in_ipv6_range_p, VALIDATE_INET6): Removed, their function
        is now done by scm_to_ipv6.
        
        * numbers.c (scm_to_signed_integer, scm_to_unsigned_integer): dot
        not accept inexact integers.

        * validate.h, deprecated.h (SCM_VALIDATE_INUM,
        SCM_VALIDATE_INUM_COPY, SCM_VALIDATE_BIGINT,
        SCM_VALIDATE_INUM_MIN, SCM_VALIDATE_INUM_MIN_COPY,
        SCM_VALIDATE_INUM_MIN_DEF_COPY,SCM_VALIDATE_INUM_DEF,
        SCM_VALIDATE_INUM_DEF_COPY, SCM_VALIDATE_INUM_RANGE,
        SCM_VALIDATE_INUM_RANGE_COPY): Deprecated because they make the
        fixnum/bignum distinction visible.  Changed all uses to
        scm_to_size_t or similar.

2004-07-09  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * cpp_cnvt.awk: Use scm_from_int instead of SCM_MAKINUM.

2004-07-10  Kevin Ryde  <user42@zip.com.au>

        * hash.c (scm_hashq, scm_hashv, scm_hash): Restrict to size>=1 rather
        than size>=0, since 0<=hash<size cannot be satisfied for size==0, and
        such a size causes divide-by-zeros in scm_hasher.

        * regex-posix.c (scm_make_regexp): Free rx on error, to avoid memory
        leak.

2004-07-08  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * numbers.c (scm_is_signed_integer, scm_is_unsigned_integer):
        Rewritten using the same logic as scm_to_signed_integer and
        scm_to_unsigned_integer, respectively, which is better(tm).  Also,
        use CHAR_BIT instead of hardcoding 8.
        (LLONG_MIN, LLONG_MAX, ULLONG_MAX): Removed and used
        SCM_I_LLONG_MIN etc. instead.
        
        * numbers.h (SCM_MAKINUM, SCM_I_MAKINUM): Renamed SCM_MAKINUM to
        SCM_I_MAKINUM and changed all uses.
        * deprecated.h, deprecated.c (SCM_MAKINUM): Newly deprecated.

        * gen-scmconfig.c (SCM_I_LLONG_MIN, SCM_I_LLONG_MAX,
        SCM_I_ULLONG_MAX): Instead of hard-coding the numbers, compute
        them by assuming twos-complement.

2004-07-07  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * gen-scmconfig.h.in: Added all the new SCM_I_GSC_*_LIMITS that
        configure now produces.
        * gen-scmconfig.c: Use them to output SCM_T_INT8_MIN, etc
        definitions, giving the limits of the integer types defined by
        Guile. Also, output a hard coded SCM_I_LLONG_MIN, etc since
        LLONG_MIN or LONG_LONG_MIN is hard to get at.

        * numbers.h (scm_to_short, scm_to_ushort): It's SHRT_MIN, etc, not
        SHORT_MIN.
        (scm_to_size_t): Use SIZE_MAX instead of cooking our own.
        (scm_to_long_long, scm_to_ulong_long, scm_to_int8, scm_to_uint8,
        scm_to_int16, scm_to_uint16, scm_to_int32, scm_to_uint32,
        scm_to_int64, scm_to_uint64, scm_to_intmax, scm_to_uintmax,
        scm_from_long_long, scm_from_ulong_long, scm_from_int8,
        scm_from_uint8, scm_from_int16, scm_from_uint16, scm_from_int32,
        scm_from_uint32, scm_from_int64, scm_from_uint64, scm_from_intmax,
        scm_from_uintmax): New.
        
2004-07-06  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * tags.h (scm_is_eq): New.

        * deprecated.h, boolean.h (SCM_FALSEP, SCM_NFALSEP, SCM_BOOL,
        SCM_NEGATE_BOOL, SCM_BOOLP): Deprecated by moving into
        "deprecated.h".  Replaced all uses with scm_is_false, scm_is_true,
        scm_from_bool, and scm_is_bool, respectively.

        * boolean.h (scm_is_bool): Fix bug in prototype.
        (scm_from_bool): The argument is "x" not "f", stupid.

        * boolean.c (scm_is_bool): Fix typo.

        * numbers.h, numbers.c (scm_is_integer, scm_is_signed_integer,
        scm_is_unsigned_integer, scm_to_signed_integer,
        scm_to_unsigned_integer, scm_to_schar, scm_to_uchar, scm_to_char,
        scm_to_short, scm_to_ushort, scm_to_long, scm_to_ulong,
        scm_to_size_t, scm_to_ssize_t, scm_from_schar, scm_from_uchar,
        scm_from_char, scm_from_short, scm_from_ushort, scm_from_int,
        scm_from_uint, scm_from_long, scm_from_ulong, scm_from_size_t,
        scm_from_ssize_t, scm_is_real, scm_to_double, scm_from_double):
        New.
        
2004-07-05  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * boolean.h, boolean.c (scm_is_true, scm_is_false, scm_from_bool,
        scm_to_bool): New.

2004-06-27  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * backtrace.c (display_expression, display_frame): Call
        scm_i_unmemoize_expr for unmemoizing a memoized object holding a
        single memoized expression.

        * debug.c (memoized_print): Don't try to unmemoize the memoized
        object, since we can't know whether it holds a single expression
        or a body.

        (scm_mem_to_proc): Removed check for lambda expression, since it
        was moot anyway.  Whoever uses these functions for debugging
        purposes should know what they do: Creating invalid memoized code
        will cause crashes, independent of whether this check is present
        or not.

        (scm_proc_to_mem): Take the closure's code as it is and don't
        append a SCM_IM_LAMBDA isym.  To allow easier debugging, the
        memoized code should not be modified.

        * debug.[ch] (scm_unmemoize, scm_i_unmemoize_expr): Removed
        scm_unmemoize from public use, but made scm_i_unmemoize_expr
        available as a guile internal function instead.  However,
        scm_i_unmemoize_expr will only work on memoized objects that hold
        a single memoized expression.  It won't work with bodies.

        * debug.c (scm_procedure_source), macros.c (macro_print), print.c
        (scm_iprin1): Call scm_i_unmemocopy_body for unmemoizing a body,
        i. e. a list of expressions.

        * eval.c (unmemoize_exprs): Drop internal body markers from the
        output during unmemoization.

        * eval.[ch] (scm_unmemocopy, scm_i_unmemocopy_expr,
        scm_i_unmemocopy_body): Removed scm_unmemocopy from public use,
        but made scm_i_unmemocopy_expr and scm_i_unmemocopy_body available
        as guile internal functions instead.  scm_i_unmemoize_expr will
        only work on a single memoized expression, while
        scm_i_unmemocopy_body will only work on bodies.

2004-06-21  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * eval.c (unmemoize_exprs): Handle semi-memoized code.

        (scm_cons_source, scm_primitive_eval): Prefer higher level
        predicate SCM_FALSEP over SCM_IMP.

2004-06-15  Rob Browning  <rlb@defaultvalue.org>

        * script.c (scm_shell_usage): minor phrasing change.

        * gc_os_dep.c: update ifdefery for macosx.
        (scm_get_stack_base): separate result initialization from
        declaration to slience warnings with macosx and hp-ux using gcc
        3.3.  Thanks to Andreas Vögele.

2004-06-13  Han-Wen Nienhuys   <hanwen@xs4all.nl>

        * eval.c (unmemoize_exprs): use SCM_CONSP for the loop condition.

2004-06-06  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * list.[ch] (scm_i_finite_list_copy): New internal function to
        copy lists that are known to be finite (though not necessarily
        proper).

        * debug.c (scm_procedure_source): Don't have scm_unmemocopy treat
        a closure's argument list like an expression of a body.

        * eval.c (unmemoize_expression, unmemoize_exprs, unmemoize_and,
        unmemoize_begin, unmemoize_case, unmemoize_cond, unmemoize_delay,
        unmemoize_do, unmemoize_if, unmemoize_lambda, unmemoize_let,
        unmemoize_letrec, unmemoize_letstar, unmemoize_or,
        unmemoize_set_x, unmemoize_apply, unmemoize_atcall_cc,
        unmemoize_at_call_with_values, unmemoize_future, sym_atslot_ref, 
        unmemoize_atslot_ref, sym_atslot_set_x, unmemoize_atslot_set_x,
        unmemoize_builtin_macro): New static functions and symbols.

        (scm_unmemocopy): Rewritten in terms of the above.  scm_unmemocopy
        now has a slightly different meaning: The memoized form that is
        receives as its argument is now interpreted as a sequence of
        expressions from a body.

        (unmemocar, scm_unmemocar): Since the whole functionality of
        unmemocar and scm_unmemocar is not needed any more, scm_unmemocar
        has its old content back and is deprecated, while unmemocar has
        been removed.

        (SCM_BIT7): Removed.

        (CEVAL): For unmemoizing a single expression, call
        unmemoize_expression instead of scm_unmemocopy, which now expects
        a sequence of body expressions.  Eliminated unnecessary empty
        environment frame when executing let* forms.  Eliminated
        unmemoization step from evaluator.

2004-06-02  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * eval.c (scm_macroexp, macroexp): Renamed scm_macroexp to
        macroexp and made static.  Added new version of scm_macroexp that
        emits a deprecation warning and then calls macroexp.
        (scm_m_undefine): Issue deprecation warning.
        
2004-05-30  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * eval.c (lookup_global_symbol, literal_p, try_macro_lookup):
        Modified to make set! work on symbols that represent syntactic
        keywords.

2004-05-26  Han-Wen Nienhuys   <hanwen@xs4all.nl>

        * gc.h (SCM_CELL_OBJECT_LOC): use SCM_GC_CELL_OBJECT to prevent
        compound expression as lvalue errors.

2004-05-24  Marius Vollmer  <mvo@zagadka.de>

        * dynwind.c (winder_mark): Use SCM_PACK to correctly convert the
        WINDER_DATA to a SCM.

2004-05-24  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * goops.c (compute_getters_n_setters, create_standard_classes,
        scm_add_slot): Compute closures by calling scm_i_eval_x on a
        lambda expression rather than creating them with scm_closure.

2004-05-22  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * eval.c (s_macro_keyword, scm_m_set_x): Remove checking for
        misplaced syntactic keywords.  This will not work unless guile's
        defmacro feature is deprecated.

        (scm_m_case): Fixed a bug that caused the list of labels to grow
        with every case form.

2004-05-19  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_round_number): For inum and big, just return x.  For
        real, use scm_round for 2^54-1 etc problems covered there.

        * numbers.c (trunc): Remove #define to scm_truncate when the C library
        doesn't provide trunc.  This was for when `truncate' was done as a
        scm_tc7_dsubr, no longer required.

        * threads.c (scm_threads_mark_stacks) [SCM_STACK_GROWS_UP]: Correction
        to stack marking call, two parameters and no cast on t->base.

2004-05-18  Marius Vollmer  <mvo@zagadka.de>

        * hashtab.c (rehash_after_gc): Bug fix: properly link the
        processed hashtables back into the weak_hashtables list.  Thanks
        to Bill Schottstaedt!

2004-05-16  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * eval.c (unmemoize_quote): New static function.

        (scm_m_quote, scm_m_atslot_ref, SCM_CEVAL): Changed the byte code
        representation of 'quote' and '@slot-ref' to an improper list.
        This reduces execution time, the number of cells used to hold the
        memoized code, and thus also reduces garbage collection time.

        (scm_unmemocopy): Use unmemoize_quote for quote expressions.

        (SCM_CEVAL): Changed macro handling to also work with macros that
        return improper lists.  Added an assertion, that the code returned
        by a macro transformer will not lead to cycles in the memoized
        code.

2004-05-15  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        No functional change, just rearrangements of functions within the
        file.

        * eval.c (scm_ilookup, scm_unbound_variable_key,
        error_unbound_variable, scm_lookupcar1, scm_lookupcar): Moved to
        the definitions used for execution, since that's where they will
        belong to later.

2004-05-15  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * numbers.h (SCM_SLOPPY_FRACTIONP): Removed.  It was not used
        throughout guile, has not been part of an official release yet,
        and the concept of sloppy predicates has never been a good idea.

        (SCM_FRACTION_NUMERATOR, SCM_FRACTION_DENOMINATOR,
        SCM_FRACTION_SET_NUMERATOR, SCM_FRACTION_SET_DENOMINATOR):
        Simplified.

2004-05-15  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * throw.c (SETJBJMPBUF, SCM_SETJBDFRAME): Add cast to scm_t_bits
        to make explicit what happens.

2004-05-15  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * dynl.c (SET_DYNL_HANDLE): Add cast to scm_t_bits to make
        explicit what happens.

        * guardians.c (TCONC_IN): Use SCM_SET_CELL_OBJECT_x rather than
        SCM_SET_CELL_WORD_x when writing scheme objets to cell elements.

2004-05-11  Marius Vollmer  <mvo@zagadka.de>

        * scmsigs.c (scm_sigaction_for_thread): Validate that the handler
        is indeed a procedure when it isn't a number.

2004-05-10  Marius Vollmer  <mvo@zagadka.de>

        Convert floating point numbers into strings with an arbitrary
        radix.  Thanks to Richard Todd!
        
        * numbers.c (FLOBUFLEN): Increase so that radix 2 strings will
        fit.
        (fx): Removed.
        (scm_dblprec, fx_per_radix, init_dblprec, init_fx_radix,
        number_chars): New, to support variable radices.
        (idbl2str): Use above instead of the old base-10 only tables.
        (iflo2str): Pass on new RADIX argument to idbl2str.
        (scm_number_to_string): Pass radix to iflo2str.
        (scm_print_real, scm_print_complex): Explicitly pass radix 10 to
        iflo2str.
        (scm_init_numbers): Call init_dblprec and init_fx_radix for all
        possible radices.

2004-05-10  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_logbit_p): Correction to test above the end of an
        inum.  Reported by Jan Konecny.

2004-05-06  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * gc.h (scm_t_cell): Fields are now of type SCM instead of
        scm_t_bits.  Updated all users.
        (SCM_GC_CARD_SIZE_MASK): Use SCM_GC_SIZEOF_CARD instead of
        duplicating the code.
        (SCM_CELL_OBJECT_LOC): New.
        (SCM_CARLOC, SCM_CDRLOC): Use it instead of SCM_CELL_WORD_LOC.
        (SCM_CELL_WORD_LOC): Moved to "deprecated.h".

        * smob.h (SCM_SMOB_DATA_2, SCM_SMOB_DATA_3, SCM_SMOB_FLAGS,
        SCM_SET_SMOB_DATA_2, SCM_SET_SMOB_DATA_3, SCM_SET_SMOB_FLAGS,
        SCM_SMOB_OBJECT, SCM_SMOB_OBJECT_2, SCM_SMOB_OBJECT_3,
        SCM_SET_SMOB_OBJECT, SCM_SET_SMOB_OBJECT_2, SCM_SET_SMOB_OBJECT_3,
        SCM_SMOB_OBJECT_LOC, SCM_SMOB_OBJECT_2_LOC,
        SCM_SMOB_OBJECT_3_LOC): New.
        * smob.c (scm_i_set_smob_flags): New function.

        * dynl.c, dynwind.c, eval.h, fluids.h, futures.h, hashtab.h,
        hooks.h, keywords.h, macros.h, macros.c, mallocs.c, mallocs.h,
        random.h, regex-posix.h, root.h, srcprop.h, srcprop.c, threads.h:
        Use SCM_SMOB_* instead of SCM_CELL_* as appropriate.  Use
        SCM_SMOB_FLAGS and SCM_SET_SMOB_FLAGS instead of accessing the
        zeroth word directly.  Use SCM_SMOB_PREDICATE as appropriate.

        * numbers.h (SCM_I_BIG_MPZ): Use SCM_CELL_OBJECT_LOC instead of
        taking the address of SCM_CELL_WORD_1, the latter being no longer
        an lvalue.

        * variable.h (SCM_VARIABLE_LOC): Use SCM_CELL_OBJECT_LOC instead
        of casting SCM_CELL_WORD_LOC.

2004-05-02  Kevin Ryde  <user42@zip.com.au>

        * eval.c (scm_macroexp): Add prototype, since it's not in eval.h under
        --disable-deprecated.  Reported by Andreas Vögele.

        * filesys.c (_POSIX_C_SOURCE): Define to 199506L to get readdir_r (in
        particular on HP-UX).  Reported by Andreas Vögele.

        * list.c (varargs.h): Remove, leave just stdarg.h which is all the
        code has support for.  Fixes building with AIX cc, which is ansi but
        doesn't define __STDC__.  Reported by Keith Crane.
        (var_start): Remove macro, this variation no longer required.
        (scm_list_n): Use va_start directly.

2004-05-01  Kevin Ryde  <user42@zip.com.au>

        * continuations.c (scm_dynthrow): Use >= instead of SCM_PTR_GE which
        is now gone.  Reported by Andreas Vögele.

2004-04-28  Kevin Ryde  <user42@zip.com.au>

        * backtrace.c (display_frame_expr), numbers.c (XDIGIT2UINT,
        mem2uinteger, mem2decimal_from_point, mem2ureal): Cast char to int for
        ctype.h tests, to avoid warnings from gcc on HP-UX about char as array
        subscript.  Reported by Andreas Vögele.
        Also cast through unsigned char to avoid passing negatives to those
        macros if input contains 8-bit values.

        * num2integral.i.c (NUM2INTEGRAL): Under non-BIGMPZ_FITSP case,
        corrections to range check for signed numbers.  Remove
        scm_remember_upto_here_1(num) from these checks, since num is used
        subsequently anyway.

        * num2integral.i.c (NUM2INTEGRAL): Test BIGMPZ_FITSP with "!= 0" to
        avoid warning from gcc 3.4.  Reported by Hyperdivision.
        
        * numbers.c (scm_bit_extract): Use min instead of MIN.
        (MIN): Remove, this conflicts with similar macro defined by limits.h
        on HP-UX.  Reported by Andreas Vögele.

        * stime.c (_POSIX_C_SOURCE): Define to 199506L to get gmtime_r (in
        particular on HP-UX).  Reported by Andreas Vögele.

        * threads.c (scm_threads_mark_stacks): Correction sizet -> size_t.
        Reported by Andreas Vögele.

        * threads-plugin.h (SCM_MUTEX_MAXSIZE): Increase to 25*sizeof(long),
        for the benefit of hpux11 where pthread_mutex_t is 88 bytes.  Reported
        by Andreas Vögele.

2004-04-22  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * eval.c (s_macro_keyword): New static identifier.

        (scm_m_define): Change order to first create binding and
        evaluating the expression afterwards.

        (scm_m_set_x): Memoize complete set! expression.  Only leave
        symbols if no binding exists at memoization time.  Throw error if
        assigning to a syntactic keyword.

        (lazy_memoize_variable): New function.

        (CEVAL): When execution set!, perform lazy memoization if
        unmemoized symbol is detected.

        * modules.c (module_variable): Return variables with unbound
        value.

        * tags.h: Fix comment.

2004-04-25  Kevin Ryde  <user42@zip.com.au>

        * chars.c (scm_char_upcase, scm_char_downcase, scm_c_upcase,
        scm_c_downcase): Use ctype.h toupper and tolower.  This will be useful
        in 8-bit locales, and ensures consistency with char-upper-case? and
        char-lower-case? which already use ctype.h.
        (scm_c_upcase_table, scm_c_downcase_table, scm_lowers, scm_uppers):
        Remove.
        * chars.c, chars.h, init.c (scm_tables_prehistory): Remove.

        * socket.c (VALIDATE_INET6): Correction to bignum_in_ipv6_range_p
        call.  Reported by Hyperdivision.

        * threads.c (scm_yield): Correction, actually call scm_thread_yield.
        Reported by Hyperdivision.

        * unif.c (s_scm_make_uve): Remove unused local variable.  Reported by
        Hyperdivision.

2004-04-22  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        Hide the implementation of ilocs and isyms in eval.c.

        * deprecated.h (SCM_IFRINC, SCM_ICDR, SCM_IFRAME, SCM_IDIST,
        SCM_ICDRP), eval.c (SCM_IFRINC, SCM_ICDR, SCM_IFRAME, SCM_IDIST,
        SCM_ICDRP), eval.h (SCM_ICDR, SCM_IFRINC, SCM_IFRAME, SCM_IDIST,
        SCM_ICDRP): Deprecated and added to deprecated.h.  Moved from
        eval.h to eval.c.

        * deprecated.c (scm_isymnames), deprecated.h (scm_isymnames,
        SCM_ISYMNUM, SCM_ISYMCHARS), eval.c (SCM_ISYMNUM, isymnames,
        scm_unmemocopy, CEVAL), print.c (scm_isymnames), tags.h
        (SCM_ISYMNUM, scm_isymnames, SCM_ISYMCHARS): Deprecated
        scm_isymnames, SCM_ISYMNUM and SCM_ISYMCHARS and added to
        deprecated.[hc].  Moved scm_isymnames from print.c to eval.c and
        renamed to isymnames.  Moved SCM_ISYMNUM from tags.h to eval.c and
        renamed to ISYMNUM.

        * eval.c (scm_i_print_iloc, scm_i_print_isym), eval.h
        (scm_i_print_iloc, scm_i_print_isym), print.c (scm_iprin1):
        Extracted printing of ilocs and isyms to guile internal functions
        scm_i_print_iloc, scm_i_print_isym of eval.c.

2004-04-22  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_bit_extract): Use SCM_SRS for signed right shift.

        * numbers.c (scm_round): Test for x already an integer, to avoid bad
        rounding in x+0.5 when x is a big value already an integer.  In
        certain hardware rounding cases x+0.5 can give an adjacent integer,
        leading to that as the result, when we really just wanted x itself.
        
2004-04-19  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * eval.c (scm_unmemocopy): Fixed unmemoization of let*.

        (deval_args, CEVAL): Minor improvements: Reduced variable scopes,
        added const qualifiers, cast intentionally unused expressions to
        void for emphasis, improved comment.

2004-04-18  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * tags.h (scm_tags, scm_tc8_tags, scm_tc9_flag, scm_tc8_flag,
        scm_tc8_isym): Renamed scm_tags to scm_tc8_tags.  Renamed
        scm_tc9_flag to scm_tc8_flag.  Introduced new identifier
        scm_tc8_isym.  Defined tc8-tags relative to scm_tc3_imm24.
        Defined the tc8-tag for flags to be 0x04, which will mean that
        SCM_BOOL_F will also have the value 0x04 instead of 0x013c.  Due
        to the reduced number of bits and the simpler bit pattern for
        SCM_BOOL_F, certain machines may be able to use more efficient
        processor instructions to deal with SCM_BOOL_F.

        (SCM_ITAG9, SCM_MAKE_ITAG9, SCM_ITAG9_DATA): Removed.  These have
        never been defined in a released version, thus no need to
        deprecate them.

        (SCM_IFLAGP, SCM_MAKIFLAG, SCM_IFLAGNUM): Flags now use tc8
        instead of tc9 tags.

        (SCM_ISYMP, SCM_MAKISYM, SCM_ISYMNUM): Isyms now use tc8 instead
        of tc9 tags.

        (SCM_MAKSPCSYM): Removed.  It is almost impossible that user code
        could have used this definition.

        (SCM_IM_AND, SCM_IM_BEGIN, SCM_IM_CASE, SCM_IM_COND, SCM_IM_DO,
        SCM_IM_IF, SCM_IM_LAMBDA, SCM_IM_LET, SCM_IM_LETSTAR,
        SCM_IM_LETREC, SCM_IM_OR, SCM_IM_QUOTE, SCM_IM_SET_X): Now encoded
        as isyms, as special isyms don't exist any more.

2004-04-18  Kevin Ryde  <user42@zip.com.au>

        * filesys.c (scm_readdir): Use readdir_r when available, for thread
        safety.

        * numbers.c (scm_max, scm_min): For big/real, use SCM_SWAP rather than
        explicit swapping code.

2004-04-15  Kevin Ryde  <user42@zip.com.au>

        * cpp_sig_symbols.in: Add SIGSYS.
        
        * list.c (scm_append_x): Use iterative style, to avoid non-tail
        recursion.

        * numbers.c (scm_max, scm_min): For inum/frac, frac/inum, big/frac,
        frac/big and frac/frac, use scm_less_p for exact comparison.

        * numbers.c (scm_gcd): For inum/big, use mpz_gcd_ui by sharing code
        with big/inum.

        * numbers.c (xisinf): Add a comment about solaris 7 lacking isinf.

2004-04-06  Han-Wen Nienhuys   <hanwen@xs4all.nl>

        * inline.h (scm_cell): use SCM_GC_CELL_WORD for checking tag.

        * chars.h (scm_init_chars): change scm_{upcase,downcase} to
        scm_c_{up,down}case. 
        (SCM_MAKE_CHAR): add (unsigned char) cast. This prevents havoc
        when hi-bit ASCII is subjected to SCM_MAKE_CHAR().  

2004-04-06  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_ash): Remove stray "}" in docstring.

        * numbers.c (scm_make_ratio): For inum/bignum integer detection, use
        x==SCM_MOST_NEGATIVE_FIXNUM explicitly, for clarity and to avoid
        calling mpz_cmp_ui in most cases.

        * numbers.c (scm_quotient, scm_remainder): In inum/big, use mpz_cmp_ui
        for big == abs(most-negative-fixnum) special case.
        (abs_most_negative_fixnum): Remove, no longer used.

        * scmsigs.c (scm_sigaction_for_thread): Correction to signum range
        test, avoids SCM_VECTOR_REF outside bounds of signal_handlers on
        calling (sigaction NSIG).

        * simpos.c (scm_system_star): Fix execargv memory leak, merge parent
        and fork error cases to do this.

2004-04-03  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * eval.c (CEVAL): Don't distinguish between short and long
        instructions when dispatching - just always dispatch on the
        instruction code, which is common for short and long instructions.
        Further, removed unnecessary goto statements and added comment.

2004-04-03  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * eval.c (scm_unmemocopy): Don't distinguish between short and
        long instructions when dispatching - just always dispatch on the
        instruction code, which is common for short and long instructions.
        Further, removed unnecessary goto statements, fixed indentation
        and replaced SCM_IMP predicates by SCM_NULLP.

2004-04-03  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * eval.c (scm_lookupcar1, CEVAL): Use SCM_ILOCP instead of
        comparison with SCM_ILOC00.  In CEVAL, eliminate goto-label
        'checkmacro'.

2004-03-31  Kevin Ryde  <user42@zip.com.au>

        * simpos.c: Include <signal.h> for SIG_IGN and friends.

2004-03-29  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        Introduce scm_debug_mode_p as a replacement for scm_debug_mode and
        SCM_DEBUGGINGP:

        * debug.h (scm_debug_mode_p, scm_debug_mode, SCM_DEBUGGINGP),
        eval.c (scm_debug_mode_p): Deprecated scm_debug_mode and
        SCM_DEBUGGINGP.  Provided scm_debug_mode_p instead, to have one
        single interface that also matches the naming conventions.
        Probably scm_debug_mode_p should be part of the private interface
        anyway.

        * debug.h (scm_debug_mode_p), backtrace.c (display_error_body),
        eval.c (SCM_APPLY, scm_trampoline_0, scm_trampoline_1,
        scm_trampoline_2): Change uses of scm_debug_mode or SCM_DEBUGGINGP
        to scm_debug_mode_p.


        Deprecate direct access to scm_ceval, scm_deval and scm_ceval_ptr:

        * eval.h (scm_ceval, scm_deval, scm_ceval_ptr), debug.h
        (scm_ceval_ptr): Deprecated.  Moved declaration of scm_ceval_ptr
        from debug.h to eval.h.

        * debug.h (SCM_RESET_DEBUG_MODE): Don't access scm_ceval_ptr any
        more, just leave it with setting scm_debug_mode_p, which is
        equivalent for practical purposes.

        * deprecated.h (SCM_XEVAL, SCM_XEVALCAR): Call scm_i_eval_x
        instead of *scm_ceval_ptr.  Leave all evaluating to scm_i_eval_x.

        * gdbint.c (gdb_eval): Call scm_i_eval_x instead of scm_ceval.

        * eval.c (ceval, deval, scm_ceval, scm_deval): Made scm_ceval
        static and renamed it to ceval throughout.  Provide a new exported
        but deprecated function scm_ceval as a wrapper for backwards
        compatibility.  The same is done for the deval/scm_deval pair of
        functions.

        * eval.c (CEVAL, SCM_CEVAL): Renamed SCM_CEVAL to CEVAL
        throughout.  Defined CEVAL to ceval or deval, based on compilation
        phase.

        * eval.c (SCM_XEVAL, SCM_XEVALCAR): Dispatch on scm_debug_mode_p
        to ceval and deval instead of calling *scm_ceval_ptr.

        * eval.c (dispatching_eval): New deprecated static function.

        * eval.c (scm_ceval_ptr): Initialized to dispatching_eval in order
        to emulate its old behaviour as closely as possible.


        Change the evaluator such that only expressions for which pair? is
        true are passed to CEVAL, and such that all other expressions are
        evaluated outside of CEVAL:

        * eval.c (EVAL): New, provided in analogy to EVALCAR.  Evaluate an
        expression that is assumed to be memoized already.  All but
        expressions of the form '(<form> <form> ...)' are evaluated inline
        without calling an evaluator.

        * eval.c (SCM_XEVAL, SCM_XEVALCAR, EVALCAR): Evaluate all but
        expressions of the form '(<form> <form> ...)' inline without
        calling an evaluator.

        * eval.c (scm_i_eval_x, scm_i_eval, scm_ceval, scm_deval): Handle
        the special case of unmemoized symbols passed on the top level.

        * eval.c (CEVAL): Change calls to CEVAL to EVAL, except where it
        is known that the expression passed to CEVAL is of the form
        '(<form> <form> ...)'.  Remove handling of the tc7-objects, since
        now it is known that the input expression of CEVAL is a pair.

2004-03-29  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * eval.c (is_self_quoting_p): New static function.

        (scm_m_quote): Use is_self_quoting_p.

        (copy_tree): Corrected typo in comment.

2004-03-28  Han-Wen Nienhuys   <hanwen@xs4all.nl>

        * eval.c (s_scm_copy_tree): idem.

        * list.c (s_scm_filter): remove "pointer" from doc string.

        * gc.h (SCM_GC_CELL_TYPE): SCM_GC_CELL_TYPE uses SCM_GC_CELL_OBJECT.

        * goops.h (SCM_NUMBER_OF_SLOTS): don't SCM_UNPACK the result.

        * backtrace.c ("display_backtrace_body"): SCM_PACK before SCM_EQ_P
        (display_frame): idem.
        (display_backtrace_file_and_line): idem.

        * tags.h (SCM_UNPACK): stricter typechecking on SCM_UNPACK
        arguments.

2004-03-26  Kevin Ryde  <user42@zip.com.au>

        * filesys.c (scm_getcwd, scm_readlink): Avoid memory leak on errors.

        * numbers.c (scm_modulo): For inum/big and big/big, remove test of
        big==0 since that never occurs.

        * numbers.c, numbers.h (scm_modulo_expt): Renamed from
        scm_modular_expt, matching scheme level name `modulo-expt'.

        * numbers.c (scm_modular_expt): Return a negative remainder for a
        negative divisor, the same as `modulo' does.

2004-03-26  Eric Hanchrow <offby1@blarg.net>

        * numbers.c, numbers.h (scm_modular_expt): New function.

2004-03-25  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_min, scm_max): Correction to big/real and real/big,
        return inexact as required by r5rs.

2004-03-24  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * eval.c: Separated some definitions relevant for execution from
        the memoization part of the file.

        (copy_tree): New static function

        (scm_copy_tree): Rewritten to fix two kinds or bugs: First, cyclic
        structures are detected now and will lead to an exception instead
        of forcing guile to run in an endless loop, using up all the
        system's memory.  Second, arrays in the cdr of an improper list
        are now copied.  See the new test cases in eval.test.

2004-03-24  Dirk Herrmann  <dirk@dirk-herrmanns-seiten.de>

        * posix.c (scm_gethostname): Make sure len is initialised before
        it is used.  Restructured to (hopefully) represent possible
        configurations more clearly in the code.  Added unwind handler.

2004-03-23  Kevin Ryde  <user42@zip.com.au>

        * posix.c (scm_gethostname): Use sysconf(_SC_HOST_NAME_MAX) and/or
        MAXHOSTNAMELEN when available.

2004-03-21  Marius Vollmer  <mvo@zagadka.de>

        * read.c (skip_scsh_block_comment): Also recognize '\r' as a line
        terminator.  Rewritten the logic as a state machine, I must have
        been doing too much VHDL lately...

        * eval.c (scm_ceval, scm_deval): Explicitely evaluate ports to
        themselves.  Thanks to Han-Wen Nienhuys!

        * list.c: Changed docstrings so that they no longer talk about
        returning 'pointers' to something.

2004-03-20  Han-Wen Nienhuys   <hanwen@xs4all.nl>

        * gc.c: remove set_debug_cell_accesses! when
        SCM_DEBUG_CELL_ACCESSES is not defined. Scheme source code should
        use (if (defined? 'set-debug-cell-accesses!) .. ) to switch on
        debugging conditionally.
 
2004-03-21  Kevin Ryde  <user42@zip.com.au>

        * stime.c (scm_gmtime): Use gmtime_r when available, for thread safety.

2004-03-20  Kevin Ryde  <user42@zip.com.au>

        * posix.c (scm_gethostname): Preserve errno across free() call.

2004-03-18  Han-Wen Nienhuys   <hanwen@xs4all.nl>

        * gc-card.c (sweep_card): use SCM_GC_SET_CELL_WORD for setting
        free cells.

2004-03-14  Kevin Ryde  <user42@zip.com.au>

        * stime.c: Define _GNU_SOURCE for strptime prototype from glibc.
        (strptime): Use HAVE_DECL_STRPTIME for when to give own prototype.

2004-03-07  Kevin Ryde  <user42@zip.com.au>

        * stime.c (scm_gmtime): Return bd_time->tm_zone when available, rather
        than "GMT" always.
        (filltime): Make zname parameter "const".

2004-03-03  Mikael Djurfeldt  <mdj@chunk.mit.edu>

        * threads.c, threads.h (scm_c_scm2thread): New function.

2004-02-29  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (guile_ieee_init): Use C99 INFINITY and NAN when
        available.  Test HAVE_DINFINITY and HAVE_DQNAN for those globals, in
        particular don't assume "defined (__alpha__) && ! defined (linux)"
        means OSF.  Remove "SCO" code, which was not really SCO specific and
        which John W. Eaton advises should be long past being needed.

        * posix.c (scm_execl, scm_execlp, scm_execle): Avoid memory leak under
        error throw.

2004-02-24  Kevin Ryde  <user42@zip.com.au>

        * posix.c (scm_cuserid): Use a private result buffer, for thread safe.

2004-02-22  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_max, scm_min): For one arg, dispatch to generic for
        complex, same as for two args.  (Handle only inum, big, real, frac).

2004-02-21  Kevin Ryde  <user42@zip.com.au>

        * posix.c (scm_crypt): Use new HAVE_CRYPT.
        (<crypt.h>): Remove HAVE_LIBCRYPT condition.
        Reported by Andreas Voegele.

2004-02-20  Neil Jerram  <neil@ossau.uklinux.net>

        * list.c (scm_list_n): Add #if SCM_DEBUG_CELL_ACCESSES_P around
        validation.

        * read.c (scm_lreadparen): Removed.
        (scm_lreadparen1): Renamed scm_i_lreadparen.

2004-02-20  Han-Wen Nienhuys   <hanwen@xs4all.nl>

        * list.c (scm_list_n): validate non-immediate arguments;
        this will catch forgotten a SCM_UNDEFINED.

2004-02-18  Marius Vollmer  <mvo@zagadka.de>

        * gc.h (scm_gc_cells_collected): Removed duplicated declaration.
        Thanks to Bill Schottstaedt!
        
        * socket.h (scm_gethost): Removed prototype it is already in
        "net_db.h".  Thanks to Bill Schottstaedt!
        
2004-02-18  Kevin Ryde  <user42@zip.com.au>

        * num2integral.i.c (INTEGRAL2BIG): WORDS_BIGENDIAN not right for word
        order parameter to mpz_import, in fact with just one word there's no
        order to worry about at all.

        * numbers.c (scm_num_eq_p): For real==frac, complex==frac, frac==real
        and frac==complex, make an exact comparison rather than converting
        with fraction2double.

        * posix.c, putenv.c, stime.c (environ): Use _NSGetEnviron in Darwin
        shared library, since environ is not directly available there.

        * script.c (scm_shell_usage): Print to stdout for --help, per GNU
        standard.

        * stime.c (scm_localtime, scm_gmtime, scm_mktime): Provide a default
        errno EINVAL in case localtime and gmtime don't set it.
        (scm_mktime, scm_strptime): Forcibly use errno EINVAL for our
        SCM_SYSERROR, since mktime and strptime generally don't set errno.

2004-02-16  Kevin Ryde  <kevin@swox.se>

        * gc-malloc.c (scm_done_malloc, scm_done_free): Allow negative sizes,
        which were permitted in the past for these.

        * num2float.i.c (NUM2FLOAT): Expand isfinite to !xisinf, as per
        previous change to numbers.c.

        * script.c (scm_shell_usage): Print bug-guile email address, as per
        GNU standard.  Reported by Han-Wen Nienhuys.

2004-02-13  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * unif.c (scm_make_uve): Removed local variable and simplified
        code in order to avoid compiler used uninitialized warnings.

        * hashtab.c, hashtab.h (scm_hash_map_to_list): Renamed from
        scm_hash_map.
        (scm_hash_fold): Use scm_call_3 directly in the call to
        scm_internal_hash_fold instead of going via fold_proc (which is
        now removed).
        (scm_hash_for_each): Use a trampoline +
        scm_internal_hash_for_each_handle.
        (scm_internal_hash_for_each_handle, scm_hash_for_each_handle): New
        functions.

2004-02-12  Kevin Ryde  <user42@zip.com.au>

        * ports.c (scm_port_line): In docstring, note first line is 0.
        (scm_set_port_line_x): In docstring, note first line is 0.
        (scm_port_column): In docstring, there's no default to current input
        port, and remove shared port-line @defun.
        (scm_set_port_column_x): In docstring, there's no default to current
        input port, note first column is 0, remove shared set-port-line!
        @defun.

        * ramap.c (scm_array_fill_x): For fvect and dvect, use scm_num2dbl to
        convert args the same way that array-set! does.

        * unif.c (scm_make_uve, scm_array_p): Allow fraction 1/3 as prototype
        for dvect.
        (scm_array_p): Add missing "break"s in switch, fix llvect test look
        for "l" not "s", fix dvect to be false for singp(prot) since such a
        value is for fvect.
        (scm_array_prototype): Return 1/3 for dvect, rather than 0.33..33.
        (exactly_one_third): New variable.
        (scm_init_unif): Initialize it.

2004-02-10  Neil Jerram  <neil@ossau.uklinux.net>

        * read.c (scm_read_opts): Change `escaped-parens' to
        `elisp-strings'.

2004-02-08  Neil Jerram  <neil@ossau.uklinux.net>

        * read.c (scm_read_opts): New opts `elisp-vectors' and
        `escaped-parens'.
        (s_vector): New.
        (scm_lreadr): Use scm_lreadparen1 instead of scm_lreadparen.  Make
        handling of elisp vector syntax dependent on SCM_ENABLE_ELISP and
        `elisp-vectors' option instead of SCM_ELISP_READ_EXTENSIONS.
        Allow "\(" and "\)" in strings when SCM_ENABLE_ELISP defined and
        `escaped-parens' option set.
        (scm_read_token): If elisp vector syntax active, disallow [ and ]
        in tokens.
        (scm_lreadparen): Rewrite as interface to scm_lreadparen1.
        (scm_lreadparen1): New.

        * read.h: Remove conditionally compiled last arg to
        scm_lreadparen.
        (SCM_ELISP_VECTORS_P, SCM_ESCAPED_PARENS_P): New.
        
2004-01-23  Han-Wen Nienhuys   <hanwen@xs4all.nl>

        * eval.c (m_expand_body): remove stray variable new_body.

2004-01-22  Marius Vollmer  <mvo@zagadka.de>

        * eval.c (m_expand_body): Rewrite the expression in place (by
        overwriting FORMS) also when a letrec is constructed, not only
        when no definitions are found.  Do not return rewritten expression
        to emphasize the in-place rewriting.  Changed all users.

2004-01-19  Han-Wen Nienhuys   <hanwen@xs4all.nl>

        * gc.c: add protected_object_count, a number that is dumped from
        gc_stats()

2004-01-11  Marius Vollmer  <mvo@zagadka.de>

        * dynwind.h, dynwind.c (scm_frame_unwind,
        scm_frame_unwind_handler): Renamed and changed all uses.
        (scm_frame_rewind, scm_frame_rewind_handler): Likewise.
        
2004-01-11  Kevin Ryde  <user42@zip.com.au>

        * unif.c (scm_bit_count, scm_bit_position, s_scm_bit_set_star_x,
        s_scm_bit_count_star, s_scm_bit_invert_x): Clarify docstrings, as per
        changes made to scheme-compound.texi.

2004-01-10  Marius Vollmer  <mvo@zagadka.de>

        * print.c (scm_print_symbol_name): Handle #{`foo}#, #{,foo}#,
        #{.}#, and all numeric strings specially.  Thanks to Paul Jarc!

        * guile-snarf.in: Use mkdir to create a unique temporary directory
        that we can safely use.  Thanks to Stefan Nordhausen!

2004-01-07  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * dynwind.h, dynwind.c (scm_i_dowinds): Removed 'explicit'
        argument since it is always zero now.  Changed all callers.
        Removed code for handling fluids.

        * fluids.c (scm_c_with_fluids): Use frames instead of adding to
        the wind chain explicitely.  Use scm_c_with_fluid for the common
        case of only one fluid.
        (scm_with_fluid): New.
        (scm_c_with_fluid): Use frames instead of scm_c_with_fluids.
        
        * fluids.h, fluids.c (scm_frame_fluid): New.
        (scm_with_fluid): New.
        (scm_i_swap_fluids, scm_i_swap_fluids_reverse): Removed.

        * dynwind.c (scm_frame_end): Do not use scm_i_dowinds.  Instead,
        do the unwinding directly.  It is simple enough.
        
        * dynwind.h, dynwind.c: Did the following renamings:
        scm_begin_frame -> scm_frame_begin,
        scm_end_frame -> scm_frame_end,
        scm_on_unwind -> scm_frame_unwind,
        scm_on_rewind -> scm_frame_rewind,
        scm_on_unwind_with_scm -> scm_frame_unwind_with_scm,
        scm_on_rewind_with_scm -> scm_frame_rewind_with_scm.
        Changed all uses.

        * aync.h, async.c: Did the follwing renamings:
        scm_with_blocked_asyncs -> scm_frame_block_asyncs,
        scm_with_unblocked_asyncs -> scm_frame_unblock_asyncs.
        Changed all uses.
        
        * ports.h, ports.c: Did the follwing renamings:
        scm_with_current_input_port -> scm_frame_current_input_port,
        scm_with_current_output_port -> scm_frame_current_output_port,
        scm_with_current_error_port -> scm_frame_current_error_port.
        Changed all uses.

2004-01-07  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (s_bignum): Remove, not used since gmp bignums.
        Reported by Richard Todd.

        * threads-plugin.h (SCM_MUTEX_MAXSIZE): Increase to 12*sizeof(long),
        for the benefit of powerpc-apple-darwin5.5.  Reported by Richard Todd.

        * unif.c (scm_aind): Test SCM_CONSP rather than !SCM_NULLP while
        traversing the args list, fixes segv if an improper list is given.
        Reported by Rouben Rostamian.

2004-01-06  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * ports.c (swap_ports, scm_with_current_foo_port): Do not allocate
        swap_data on stack, use a 'malloc obj'.

        * fluids.h, fluids.c (scm_make_initial_fluids, scm_copy_fluids,
        scm_swap_fluids, scm_swap_fluids_reverse): Renamed to
        scm_i_... since they are internal.  Changed all uses.

        * dynwind.c (frame_print): Removed, use the default printer.
        (WINDER_F_MARK, WINDER_MARK_P, winder_mark): New.
        (scm_on_unwind_with_scm, scm_on_rewind_with_scm): New. Use above
        to protect SCM values.
        
        * dynwind.h (SCM_F_WIND_EXPLICITELY,
        SCM_F_WIND_EXPLICITLY): It's "explicitly" not "explicitely", damn.
        Changed all uses.
        (scm_on_unwind_with_scm, scm_on_rewind_with_scm): New.
        
2004-01-05  Marius Vollmer  <mvo@zagadka.de>

        * ports.h, ports.c (scm_with_current_input_port,
        scm_with_current_output_port, scm_with_current_error_port): New.

        * async.h, async.c (scm_with_blocked_asyncs,
        scm_with_unblocked_asyncs): New.

2004-01-03  Marius Vollmer  <mvo@zagadka.de>

        * dynwind.h, scm_dynwind.c (scm_t_frame_flags, scm_t_wind_flags,
        scm_begin_frame, scm_end_frame, scm_on_unwind, scm_on_rewind):
        New.
        (scm_dowinds, scm_i_dowinds): scm_dowinds has been renamed to
        scm_i_dowinds and extended to handle frames and to invoke a 'turn'
        function when the outermost wind point has been reached.  The
        latter is used to copy a continuation stack at the right time.
        scm_dowinds remains available.
        (SCM_GUARDSP, SCM_BEFORE_GUARD, SCM_AFTER_GUARD, SCM_GUARD_DATA,
        tc16_guard, guards_print): Removed.
        (scm_internal_dynamic_wind): Reimplemented using frames.

        * continuations.c (copy_stack): New, do only the stack copying
        part of copy_stack_and_call.
        (copy_stack_and_call): Copy the stack after unwinding and before
        rewinding.
        (scm_dynthrow): Do not call scm_dowinds, this is now done by
        copy_stack_and_call.
        
2004-01-04  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_less_p): Don't convert frac to float for compares,
        can give bad results due to rounding.
        
        * stime.c (scm_current_time, scm_gettimeofday): Add a comment about
        setzone/restorezone protection for DOS.

2003-12-26  Marius Vollmer  <mvo@zagadka.de>

        * gen-scmconfig.h.in, gen-scmconfig.c: Arrange for scm_t_intmax
        and scm_t_uintmax to be defined in scmconfig.h

2003-12-03  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_less_p): Remove spurious xisnan from frac+big case.

        * numbers.c (scm_make_ratio): Check for numerator equal to
        SCM_MOST_NEGATIVE_FIXNUM and bignum denominator the negative of that,
        giving integer -1.

        * numbers.c (scm_real_part): Return fraction unchanged rather than
        converting to flonum.

2003-11-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * modules.c (module_variable): Fixed (and thus simplified) the
        definition of SCM_BOUND_THING_P to reflect the fact that since
        after the 1.4 series of guile, obarrays only hold variable
        objects.

2003-11-30  Marius Vollmer  <mvo@zagadka.de>

        * numbers.c (scm_logand): It's "#b...", not "#\b...".

        From Paul Jarc:

        * read.c (scm_lreadr): Signal an error for invalid escape
        sequences in strings.  Code cleanups too.

        * print.c (scm_iprin1): use \xNN hexadecimal sequences when
        writing control characters in strings.

2003-11-21  Marius Vollmer  <mvo@zagadka.de>

        * ports.c (scm_drain_input): Bug fix: only access the port after
        checking that it indeed is one.

2003-11-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (s_bad_define): New static identifier.

        (m_body): Fixed comment.

        (scm_m_define): Don't generate memoized code for definitions that
        are not on the top level.  As a consequence, no memoized code at
        all is generated for definitions any more: Top level definitions
        are executed immediately during memoization and internal
        definitions are handled separately in m_expand_body.

        (scm_unmemocopy, unmemocopy): Removed code for unmemoizing
        definitions.  Consequently, there is no unmemoizing code any more
        that might modify the environment.  Thus, the old scm_unmemocopy
        is removed and the old unmemocopy is renamed to scm_unmemocopy.

        (SCM_CEVAL): The SCM_IM_DEFINE keyword can no longer occur in
        memoized code.  Call EVALCAR for continuations.  Prefer !SCM_NULLP
        over SCM_NIMP in places, where the argument is known to be part of
        a proper list.

2003-11-21  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_abs): Allocate a new real only for negatives, as done
        for bignums.

        * numbers.c (scm_bit_extract): Use mpz functions, rearrange inum case
        to share some shifting.

        * numbers.c (scm_integer_expt): Don't mpz_init after scm_i_clonebig or
        scm_i_mkbig, since they do so already.  Don't mpz_clear a bignum SCM,
        since gc does this.

2003-11-19  Marius Vollmer  <mvo@zagadka.de>

        * numbers.c (scm_make_ratio): Rewritten to have a simpler
        structure.  Previously, not all cases with a negative denominator
        were covered.

        * numbers.c (mem2decimal_from_point): use scm_divide instead of
        scm_divide2real when forming the fractional part.  This allows
        "#e1.2" to yield 6/5.

        * numbers.c (scm_i_fraction_equalp): Do not treat the return value
        of scm_equal_p as a C boolean, use SCM_FALSEP.  Previously, all
        fractions were equal to each other regardless of value.  Ooops.

        * numbers.c (scm_rationalize): Return an inexact result when given
        inexact arguments.

        * numbers.c (scm_exact_p, scm_inexact_p): Throw error for
        non-numbers.

2003-11-18  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        Support for exact fractions from Bill Schottstaedt!  Thanks!
        
        * print.c (scm_iprin1): Handle fractions.

        * objects.h (scm_class_fraction): New.
        * objects.c (scm_class_fraction): New. 
        (scm_class_of): Handle fractions.
        
        * hash.c (scm_hasher): Handle fractions.

        * numbers.c: New code for handling fraction all over the place.
        (scm_odd_p, scm_even_p): Handle inexact integers.
        (scm_rational_p): New function, same as scm_real_p.
        (scm_round_number, scm_truncate_number, scm_ceiling, scm_floor):
        New exact functions that replace the inexact 'dsubr'
        implementations.
        (scm_numerator, scm_denominator): New.

        * numbers.h (SCM_NUMP): Recognize fractions.
        (SCM_FRACTIONP, SCM_SLOPPY_FRACTIONP, SCM_FRACTION_NUMERATOR,
        SCM_FRACTION_DENOMINATOR, SCM_FRACTION_SET_NUMERATOR,
        SCM_FRACTION_SET_DENOMINATOR, SCM_FRACTION_REDUCED_BIT,
        SCM_FRACTION_REDUCED_SET, SCM_FRACTION_REDUCED_CLEAR,
        SCM_FRACTION_REDUCED): New.
        (scm_floor, scm_ceiling, scm_truncate_number, scm_round_number):
        New prototypes.
        (scm_make_ratio, scm_rationalize, scm_numerator, scm_denominator,
        scm_rational_p): New prototypes.
        (scm_i_dbl2num, scm_i_fraction2double, scm_i_fraction_equalp,
        scm_i_print_fraction): New prototypes.
        
        * goops.c (create_standard_classes): Create "<fraction>" class.

        * gc-mark.c (scm_gc_mark_dependencies): Handle fractions.

        * gc-card.c (scm_i_sweep_card): Include scm_tc16_fraction as a
        case in the switch, but do nothing for now.

        * eval.c (SCM_CEVAL, SCM_APPLY, call_dsubr_1): Convert fractions
        to doubles when calling 'dsubr' functions.

        * eq.c (scm_eqv_p, scm_equal_p): Handle fractions.

2003-11-18  Rob Browning  <rlb@defaultvalue.org>

        * gen-scmconfig.c (main): remove public definition of
        SCM_SIZEOF___INT64 and SCM_SIZEOF_UNSIGNED___INT64 and add
        direct typedef of long_long and ulong_long inside deprecated block
        when appropriate.

        * deprecated.h: move long_long and ulong_long definitions to
        gen-scmconfig.c so that we don't need to add SCM_SIZEOF___INT64
        and SCM_SIZEOF_UNSIGNED___INT64 to the public namespace.

2003-11-17  Marius Vollmer  <mvo@zagadka.de>

        * hash.c (scm_string_hash): New hashing algorithm that takes the
        complete string into account.

        * eval.c (scm_m_generalized_set_x): Macroexpand the target when it
        is a list.  This allows (@ ...) to work with set!.
        (scm_m_generalized_set_x): Use ASSERT_SYNTAX_2 instead of
        SCM_ASSYNT.

        * script.c (scm_compile_shell_switches): Use scm_c_read_string for
        the "-e" option instead of scm_str2symbol.  This allows things
        like (@ ...) to be specified for the entry point.

2003-11-16  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_m_letstar): Create memoized code in place to
        minimize consing.

2003-11-16  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (s_splicing): Commented and reformulated.

        (lookup_global_symbol, lookup_symbol): New static functions.

        (s_test, s_bindings, s_duplicate_bindings, s_variable): Removed.

        (try_macro_lookup, literal_p): Use lookup_symbol instead of
        creating a temporary pair for scm_lookupcar.

        (scm_unmemocar, unmemocar): Renamed scm_unmemocar to unmemocar,
        created deprecated wrapper function scm_unmemocar.

        (SCM_VALIDATE_NON_EMPTY_COMBINATION, scm_sym_else,
        scm_sym_unquote, scm_sym_uq_splicing, scm_sym_enter_frame,
        scm_sym_apply_frame, scm_sym_exit_frame, scm_sym_trace, f_apply,
        undefineds, sym_three_question_marks): Moved around without
        modifications.

        * eval.c, eval.h (scm_macroexp, scm_unmemocar): Deprecated.

2003-11-15  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (try_macro_lookup, expand_user_macros, is_system_macro_p,
        m_expand_body, scm_m_expand_body): Grouped together with m_body.
        No further modifications.

2003-11-15  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (s_mixed_body_forms): New static identifier.

        (canonicalize_define, scm_m_define): The check for a bad
        expression is performed in canonicalize_define now.

        (try_macro_lookup, expand_user_macros, is_system_macro_p): New
        static helper functions for m_expand_body.

        (m_expand_body): Use ASSERT_SYNTAX to signal syntax errors.  Only
        expand user defined macros.  Fixed handling of the definition/
        expression boundary.  Fixed handling of definitions grouped with
        'begin.  Use canonicalize_define to expand definitions.

2003-11-13  Marius Vollmer  <mvo@zagadka.de>

        * read.c (scm_lreadr): detect EOF after backslash, and interpret
        \xNN hexadecimal sequences.  From Paul Jarc, thanks!

        * snarf.h (SCM_SMOB, SCM_GLOBAL_SMOB, SCM_SMOB_MARK,
        SCM_GLOBAL_SMOB_MARK, SCM_SMOB_FREE, SCM_GLOBAL_SMOB_FREE,
        SCM_SMOB_PRINT, SCM_GLOBAL_SMOB_PRINT, SCM_SMOB_EQUALP,
        SCM_GLOBAL_SMOB_EQUALP, SCM_SMOB_APPLY, SCM_GLOBAL_SMOB_APPLY):
        New macros from Paul Jarc.  Thanks!

        * gc_os_dep.c (scm_get_stack_base): Provide a definition that
        return NULL when the machine type is unknown.  Previously,
        gc_os_dep.c would refuse to compile.

2003-11-09  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_m_body, m_body, scm_m_lambda, memoize_named_let,
        scm_m_let, scm_m_letrec, m_expand_body): Renamed static function
        scm_m_body to m_body.

2003-11-09  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c, eval.h (scm_m_expand_body, m_expand_body): Deprecated
        public use of scm_m_expand_body in eval.h.  In eval.c, renamed
        scm_m_expand_body to m_expand_body and made it static.  Added
        deprecated wrapper scm_m_expand_body.

        (scm_eval_body, SCM_CEVAL, SCM_APPLY): Use m_expand_body instead
        of scm_m_expand_body.

2003-11-09  Kevin Ryde  <user42@zip.com.au>

        * dynl.c (scm_dynamic_unlink): Need scm_list_1 on error message
        argument.  Reported by Mike Gran.

2003-11-08  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (s_missing_body_expression): New static identifier.

        (s_body): Removed.

        (scm_m_expand_body): Fixed core dump when passing a body with
        defines, but without expressions (see additions to syntax.test).
        Use ASSERT_SYNTAX to signal syntax errors.

2003-11-02  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (canonicalize_define): New static helper function.

        (memoize_define, canonicalize_define): Extract handling of
        function currying to canonicalize_define.

2003-11-02  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_trampoline_0, scm_trampoline_1, scm_trampoline_2):
        Make sure that error checking in debug mode is not worse than in
        standard mode.

2003-11-01  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_m_body, scm_m_lambda): Documentation strings are not
        handled in scm_m_body any more, but rather in scm_m_lambda.

        (scm_m_body, memoize_named_let, scm_m_let, scm_m_letstar,
        scm_m_letrec, scm_m_expand_body): Check for validity is done by
        calling functions of scm_m_body.

        (scm_m_lambda): Avoid unnecessary consing when creating the
        memoized code.

2003-11-01  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (s_expression): Added comment.

        (s_empty_combination, error_unbound_variable): New static
        identifiers.

        (SCM_VALIDATE_NON_EMPTY_COMBINATION, SCM_EVALIM2, scm_lookupcar1):
        Use ASSERT_SYNTAX, syntax_error or error_unbound_variable to
        signal syntax errors.

        (SCM_CEVAL): Separated handling of evaluator bytecodes and other
        scheme objects.

2003-10-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (unmemocar, sym_three_question_marks, scm_unmemocar):
        Grouped together with unmemocopy, without modifications.

        (build_binding_list, unmemocopy): Renamed names of list arguments
        and variables to reflect the actual order of the list elements.

2003-10-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (s_defun): New static identifier.

        (scm_m_nil_cond, scm_m_atfop, scm_m_undefine): Add comments.  Use
        ASSERT_SYNTAX to signal syntax errors.  Avoid unnecessary consing
        when creating the memoized code.

2003-10-19  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_ash): Revise docstring as per recent update to manual.

        * numbers.c (scm_i_big2dbl): Rewrite, carefully rounding to "closest"
        in accordance with R5RS, which just mpz_get_d doesn't really give.

2003-10-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (s_bad_slot_number): New static identifier.

        (scm_m_atslot_ref, scm_m_atslot_set_x): Use ASSERT_SYNTAX to
        signal syntax errors.  Avoid unnecessary consing when creating the
        memoized code.

2003-10-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_m_cont, scm_m_at_call_with_values,
        scm_m_generalized_set_x): Use ASSERT_SYNTAX to signal syntax
        errors.  Avoid unnecessary consing when creating the memoized
        code.

        (scm_m_generalized_set_x): Let scm_m_set_x handle the R5RS
        standard case.  Make sure line and file information are copied to
        every created expression.

2003-10-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_m_set_x, scm_m_apply, scm_m_atbind): Use
        ASSERT_SYNTAX to signal syntax errors.  Avoid unnecessary consing
        when creating the memoized code.

        (scm_m_atbind): Reversed the order, in which the init expressions
        are stored and executed.  The order of execution is now equal to
        the order in which the initializers of the let-forms are executed.
        Use check_bindings and transform_bindings.

        (SCM_CEVAL): Eliminated SCM_NIMP in favor of more appropriate
        !SCM_NULLP.  Added some comments.

2003-10-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c: Sorted include files alphabetically.

        (scm_m_begin): Added comment.

        (scm_m_or): Use ASSERT_SYNTAX to signal syntax errors.  Avoid
        unnecessary consing when creating the memoized code.

        (iqq, scm_m_quasiquote, scm_m_quote): Use ASSERT_SYNTAX to signal
        syntax errors.  Be more specific about the kind of error that was
        detected.

        (scm_m_quote, unmemocopy): As an optimization, vector constants
        are now inserted unquoted into the memoized code.  During
        unmemoization the quotes are added again to provide syntactically
        correct code.

2003-10-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_m_let, scm_m_letstar, scm_m_letrec,
        scm_m_expand_body, check_bindings): Extracted syntax checking of
        bindings to new static function check_bindings.

        (scm_m_let, memoize_named_let): Extracted handling of named let to
        new static function memoize_named_let.

        (transform_bindings, scm_m_let, scm_m_letstar, scm_m_letrec): Use
        ASSERT_SYNTAX to signal syntax errors.  Be more specific about the
        kind of error that was detected.  Avoid use of SCM_CDRLOC.  Avoid
        unnecessary consing when creating the memoized code.

2003-10-12  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (s_bad_formals, s_bad_formal, s_duplicate_formal): New
        static identifiers.

        (s_clauses, s_formals, s_duplicate_formals): Removed.

        (scm_m_lambda): Use ASSERT_SYNTAX to signal syntax errors.  Be more
        specific about the kind of error that was detected.  Prepare for
        easier integration of changes for separated memoization.

2003-10-12  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (s_duplicate_binding): New static identifier.

        (scm_m_case): Call scm_c_memq instead of implementing it inline.

        (scm_m_define): Added comment about how we check for duplicate
        formals.

        (scm_m_do): Added check for duplicate bindings.

        (scm_m_if): Use ASSERT_SYNTAX to signal syntax errors.  Avoid
        unnecessary consing when creating the memoized code.

        (scm_c_improper_memq, c_improper_memq, scm_m_lambda): Renamed
        scm_c_improper_memq to c_improper_memq, since it is not exported.

        (transform_bindings): Call scm_c_memq rather than
        scm_c_improper_memq.

        (SCM_CEVAL): Simplified handling of SCM_IM_IF forms.

2003-10-12  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (s_bad_bindings, s_bad_binding, s_bad_exit_clause): New
        static identifiers.

        (scm_m_do): Use ASSERT_SYNTAX to signal syntax errors.  Be more
        specific about the kind of error that was detected.  Avoid use of
        SCM_CDRLOC.  Avoid unnecessary consing when creating the memoized
        code, this way also making sure that file name, line number
        information etc. remain available.

2003-10-12  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (memoize_as_thunk_prototype): New static function.

        (scm_m_delay, scm_m_future): Use memoize_as_thunk_prototype.
        Avoid unnecessary consing when creating the memoized code.

2003-10-12  Kevin Ryde  <user42@zip.com.au>

        * list.c (scm_append): Track argument number and use in error.

2003-10-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (s_missing_expression, s_bad_variable): New static
        identifiers.

        (scm_m_define): Use ASSERT_SYNTAX to signal syntax errors.  Prefer
        R5RS terminology for the naming of variables.  Be more specific
        about the kind of error that was detected.  Make sure file name,
        line number etc. are added to all freshly created expressions.
        Avoid unnecessary consing when creating the memoized code.

2003-10-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (s_extra_expression, s_misplaced_else_clause,
        s_bad_cond_clause, s_missing_recipient): New static identifiers.

        (s_extra_case_clause): Removed.

        (scm_m_case, scm_m_cond): If a clause appears after an else
        clause, report a misplaced else clause.

        (scm_m_cond): Use ASSERT_SYNTAX to signal syntax errors.  Be more
        specific about the kind of error that was detected.  Handle bound
        'else and '=>.  Avoid unnecessary consing when creating the
        memoized code.

        (scm_m_cond, unmemocopy, SCM_CEVAL): Use SCM_IM_ELSE to memoize
        the syntactic keyword 'else and SCM_IM_ARROW to memoize the
        syntactic keyword '=>.

2003-10-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_m_case): Allow empty lists of case labels.

2003-10-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * tags.h (SCM_IM_ELSE, SCM_IM_ARROW): New memoizer codes.

        * print.c (scm_isymnames): Add names for the new memoizer codes.

        * eval.c (s_missing_clauses, s_bad_case_clause,
        s_extra_case_clause, s_bad_case_labels, s_duplicate_case_label,
        literal_p): New static identifiers.

        (scm_m_case): Use ASSERT_SYNTAX to signal syntax errors.  Be more
        specific about the kind of error that was detected.  Check for
        duplicate case labels.  Handle bound 'else.  Avoid unnecessary
        consing when creating the memoized code.

        (scm_m_case, unmemocopy, SCM_CEVAL): Use SCM_IM_ELSE to memoize
        the syntactic keyword 'else.

2003-10-10  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (s_bad_expression, syntax_error_key, syntax_error,
        ASSERT_SYNTAX, ASSERT_SYNTAX_2): New static identifiers.

        (scm_m_and): Use ASSERT_SYNTAX to signal syntax errors.  Avoid
        unnecessary consing when creating the memoized code.

2003-10-09  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_inexact_to_exact): Don't depend on what double->long
        cast gives for values bigger than a long, or for nan or inf.

2003-10-08  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * smob.h (scm_make_smob_type): Made the declaration match the
        definition.

2003-10-07  Marius Vollmer  <mvo@zagadka.de>

        * goops.c, objects.h, smob.c, smob.h: Make type names char
        const * instead of char *.  Thanks to Paul Jarc!

2003-10-02  Kevin Ryde  <user42@zip.com.au>

        * strports.c (scm_call_with_output_string): scm_get_output_string
        rather than scm_strport_to_string, so as to guard against the port
        having been closed by the called procedure.  Reported by Nic Ferrier.

2003-09-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.h (SCM_INEXACTP): Removed uses of SCM_TYP16S.

        * tags.h, deprecated.h (SCM_TYP16S): Deprecated and moved from
        tags.h to deprecated.h.

2003-09-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        This set of patches introduces a new tc7 code scm_tc7_number for
        numbers.  Bignums, reals and complex numbers are turned from smobs
        into subtypes of scm_tc7_number.

        * tags.h (scm_tc7_number): New.

        * eq.c (scm_equal_p), eval.c (SCM_CEVAL), evalext.c
        (scm_self_evaluating_p), gc-card.c (scm_i_sweep_card), gc-mark.c
        (scm_gc_mark_dependencies), goops.c (create_smob_classes), hash.c
        (scm_hasher), numbers.c, numbers.h (SCM_NUMP), objects.c
        (scm_class_of), print.c (scm_iprin1), smob.c
        (scm_smob_prehistory): Don't handle bignums, reals and complex
        numbers as subtypes of scm_tc7_smob any more.

        * numbers.h, tags.h (scm_tc16_big, scm_tc16_real,
        scm_tc16_complex): Moved definitions from tags.h to numbers.h.

2003-09-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_make_complex), gc-card.c (scm_i_sweep_card): Use
        sizeof (scm_t_complex) to determine the memory size of the
        malloc'd area for complex numbers.

2003-09-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_bigequal): Fixed.

2003-09-16  Marius Vollmer  <mvo@zagadka.de>

        * stime.c (scm_current_time): 'time' does not set errno so don't
        use SCM_SYSERROR for reporting errors.

2003-09-16  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        This set of patches eliminates the dependency between the
        implementation of evaluator specific memoization codes and special
        constants like #f, '() etc. ('flags'), which are not evaluator
        specific.  The goal is to remove definitions of evaluator
        memoization codes completely from the public interface.  This will
        make it possible to experiment more freely with optimizations of
        guile's internal representation of memoized code.

        * objects.c (scm_class_of): Eliminate dependency on SCM_ISYMNUM.

        * print.c (iflagnames): New array, holding the printed names of
        guile's special constants ('flags').

        (scm_isymnames): Now holds only the printed names of the
        memoization codes.

        (scm_iprin1): Separate the handling of memoization codes and
        guile's special constants.

        * tags.h (scm_tc9_flag, SCM_ITAG9, SCM_MAKE_ITAG9, SCM_ITAG9_DATA,
        SCM_IFLAGNUM): new

        (scm_tc8_char, scm_tc8_iloc, SCM_BOOL_F, SCM_BOOL_T,
        SCM_UNDEFINED, SCM_EOF_VAL, SCM_EOL, SCM_UNSPECIFIED, SCM_UNBOUND,
        SCM_ELISP_NIL, SCM_IM_DISPATCH, SCM_IM_SLOT_REF,
        SCM_IM_SLOT_SET_X, SCM_IM_DELAY, SCM_IM_FUTURE,
        SCM_IM_CALL_WITH_VALUES, SCM_IM_NIL_COND, SCM_IM_BIND): Changed
        values.

        (SCM_IFLAGP): SCM_IFLAGP now only tests for flags.

        (SCM_IFLAGP, SCM_MAKIFLAG, SCM_IFLAGNUM): Generalized to use the
        tc9 macros and scm_tc9_flag.

2003-09-15  Marius Vollmer  <mvo@zagadka.de>

        * posix.c (scm_setgroups): Check that the gid list is not too
        long.  Thanks to Paul Jarc!

2003-09-14  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * tags.h: Reduced the number of short instructions from 14 to 13.
        The typecode of the former 14th short instruction is now used to
        represent long instructions.  Changed some comments to reflect
        this fact.

        (SCM_MAKISYM): ISYMs get a new tc7 code, namely the one that was
        previously used by SCM_IM_DEFINE.

        (SCM_IM_DEFINE): Turned into a long instruction.

        * eval.c (unmemocopy, SCM_CEVAL): Treat SCM_IM_DEFINE as a long
        instruction.

        * eval.c (SCM_CEVAL): Since characters and iflags have now a tc7
        code that is separate from all instructions, one level of dispatch
        for long instructions can be eliminated.

        * print.c (scm_isymnames): Removed some commented code.

2003-09-12  Marius Vollmer  <mvo@zagadka.de>

        * __scm.h (SCM_FENCE): Use __memory_barrier with the Intel
        compiler on IA64.

        * hashtab.h (scm_tc16_hashtable): Added "extern" declaration.

        * modules.c (scm_module_reverse_lookup): Check that the obarray
        really is a hashtable and do nothing if not.

        * inline.h: Use "extern inline" only with GCC.  Use "static
        inline" else.

2003-09-06  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.h (SCM_INEXACTP, SCM_REALP, SCM_COMPLEXP): Removed uses
        of SCM_SLOPPY_INEXACTP, SCM_SLOPPY_REALP and SCM_SLOPPY_COMPLEXP.

        * numbers.h, deprecated.h (SCM_SLOPPY_INEXACTP, SCM_SLOPPY_REALP,
        SCM_SLOPPY_COMPLEXP): Deprecated and moved from numbers.h to
        deprecated.h.

2003-09-06  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eq.c (scm_eqv_p, scm_equal_p): Removed uses of
        SCM_SLOPPY_INEXACTP, SCM_SLOPPY_REALP and SCM_SLOPPY_COMPLEXP.

        * eq.c (scm_eqv_p, scm_equal_p): Reordered comparisons from
        0.0==some_expression to some_expression==0.0.  The latter is
        better readable.  The former is preferred by some people, since it
        leads to a compiler error when confusing == with =.  However, when
        using gcc, a warning will be issued if in an if-statement an
        assigment appears.  Since many Guile developers are using gcc,
        such errors will not remain unnoticed anyway.  We can therefore
        focus on better readability.

2003-09-04  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * tags.h: Added description of Guile's type system.  Removed some
        old and misleading comments.

2003-09-04  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * unit.c (scm_cvref): Eliminate unnecessary uses of SCM_NIMP,
        SCM_SLOPPY_REALP and SCM_SLOPPY_COMPLEXP.

2003-09-04  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.h (SCM_MAKINUM): Define in terms of scm_tc2_int.

        (SCM_INEXACTP, SCM_REALP, SCM_COMPLEXP): Define in terms of the
        respective SLOPPY macro.

2003-09-04  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eq.c (scm_equal_p): Use SCM_TYP7 to check if an object is of
        type string, not SCM_TYP7S.

2003-09-03  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_lognot): Correction to docstring, ones-complement not
        2s-complement.

        * stime.c (scm_strptime): Add comment about glibc strptime %s and
        current timezone requiring SCM_DEFER_INTS.

2003-08-30  Neil Jerram  <neil@ossau.uklinux.net>

        * script.c (scm_compile_shell_switches): Make -s switch optional
        if file to be loaded does not begin with a `-'.  (Thanks to Aaron
        VanDevender for the patch!)

2003-08-30  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_lognot): Rewrite using ~ and mpz_com, for directness
        and to have non-integer types rejected as per other logical funcs.
        
2003-08-28  Kevin Ryde  <user42@zip.com.au>

        * gc.h (scm_remember_upto_here_1): Revise comments on the asm form.

2003-08-23  Kevin Ryde  <user42@zip.com.au>

        * simpos.c (scm_system): Remove SCM_DEFER_INTS, system() should be
        thread safe, and could take a long time too.

2003-08-22  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_difference): Correction to bignum - negative inum.

2003-08-14  Kevin Ryde  <user42@zip.com.au>

        * gc.h (scm_remember_upto_here_1, scm_remember_upto_here_2)
        [__GNUC__]: Use volatile asm macros rather than a function call.
        * gc.c (scm_remember_upto_here_1, scm_remember_upto_here_2): Undefine
        macros while defining functions.

        * simpos.c (getenv): Use <stdlib.h> for prototype.
        (scm_system): In docstring, refer to status:exit-val rather than
        "functions above".

2003-08-09  Kevin Ryde  <user42@zip.com.au>

        * srcprop.c (scm_source_properties): Return plist from hash if it's a
        list set by source-properties! rather than an SRCPROPS object,

2003-07-29  Kevin Ryde  <user42@zip.com.au>

        * properties.c (scm_primitive_property_ref): In docstring, note
        parameters to not-found-proc, use hyphens rather than underscores for
        that parameter name.
        (scm_primitive_property_set_x): In docstring, VAL is the value
        parameter not CODE.
        
2003-07-27  Marius Vollmer  <mvo@zagadka.de>

        * print.c (scm_print_symbol_name): handle more weird characters by
        escaping the symbol name properly.  Thanks to Paul Jarc!

        * posix.h (scm_setgroups): New prototype.
        * posix.c (scm_setgroups): New.  Thanks to Paul Jarc!
        (scm_getgroups): Handle groups ids that don't fit into a fixnum.
        Don't use SCM_WRITABLE_VELTS.
        
        * gc.h (SCM_GC_SET_CELL_BVEC): New.
        * gc-card.c (scm_i_init_card_freelist): Use it.  Thanks to
        Matthias Koeppe!

        * __scm.h (SCM_C_INLINE_KEYWORD): New.
        * numbers.c: Use it in place of SCM_C_INLINE so that the code
        compiles when SCM_C_INLINE is undefined.

2003-07-24  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h: Reformulated the architecture and compiler properties
        in terms of properties of scm_t_bits and SCM variables rather than
        in terms of c standard types.  This is since it is not known which
        of the standard types scm_t_bits and SCM variables will be defined
        to.

2003-07-24  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_angle): Use scm_flo0 for non-negative inum, bignum
        and real.

2003-07-18  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_product): In complex * bignum, correction to
        REAL/IMAG fetch, x is the complex, not y.

2003-07-13  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * numbers.c (scm_odd_p, scm_even_p): Bugfix: Treat result of
        scm_inf_p test as Scheme values.
        (scm_sum): Bugfix: Normalize bignum created from a negative bignum
        and a positive inum.
        Use GNU indentation style.

2003-07-12  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * values.c (scm_values): Build lists of length 1 by using
        scm_list_1 instead of using scm_cons.

2003-07-10  Kevin Ryde  <user42@zip.com.au>

        * deprecation.c (scm_c_issue_deprecation_warning_fmt): Add va_end.
        * list.c (scm_list_n): Ditto.

        * gc-malloc.c (scm_gc_realloc): Define "ptr" at start of function.

2003-07-08  Matthias Koeppe <mkoeppe@merkur.math.uni-magdeburg.de>

        * tags.h (scm_t_bits, scm_t_signed_bits, etc): Avoid solaris empty
        defines of INTPTR_MAX and UINTPTR_MAX, combine conditionals for
        scm_t_bits and scm_t_signed_bits to avoid any chance of one and not
        the other using intptr_t.

2003-07-08  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_make_polar): Use sincos, when available.
        (scm_magnitude): Use hypot.

        * ports.c (scm_char_ready_p, scm_peek_char): In docstrings, don't use
        @footnote since it doesn't go through to guile-procedures.txt.

        * threads.c (scm_call_with_new_thread): In docstring, use "( )"
        outside @var to quieten makeinfo, and use @code.

2003-07-06  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * gc-malloc.c (decrease_mtrigger): new function
        (increase_mtrigger): new function, separate debug registering and
        mtrigger administration.
        (scm_gc_realloc): bugfix: do mtrigger administration before the
        actual realloc, for the realloc might invalidate a GC-d segment of
        memory. Thanks to Sam Hocevar for pointing this out.
        (scm_gc_realloc): use scm_malloc_reregister instead of
        unregistering and registering in sequence.

2003-07-03  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * __scm.h (SCM_ASSERT): change "else" expansion to "do { } while (0)" 

2003-07-02  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * __scm.h (SCM_ASRTGO): add "else" to macro expansions with if
        clauses.
        
2003-06-29  Marius Vollmer  <mvo@zagadka.de>

        * deprecated.h (SCM_OPDIRP, scm_fport, scm_option, scm_srcprops,
        scm_srcprops_chunk, scm_info_frame, scm_stack, scm_array,
        scm_array_dim, SCM_ARRAY_CONTIGUOUS, SCM_FUNC_NAME, SCM_WTA,
        RETURN_SCM_WTA, SCM_VALIDATE_NUMBER_COPY,
        SCM_VALIDATE_NUMBER_DEF_COPY, SCM_VALIDATE_OPDIR): Re-added from
        the release_1_6 branch.

2003-06-25  Stefan Jahn  <stefan@lkcc.org>

        * continuations.c: Redeclaration of getcontext() via the
        __asm__ ("getcontext") directive.

        * continuations.h: Include <ucontext.h> instead of 
        <sys/ucontext.h>.

2003-06-21  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (_GNU_SOURCE): #define, to get C99 things.
        (scm_asinh, scm_acosh, scm_atanh, scm_truncate, $asinh, $acosh,
        $atanh, truncate): Use C library asinh, acosh, atanh and trunc, when
        available.
        (scm_inexact_to_exact): Expand isfinite to its definition !xisinf.
        (isfinite): Remove, conflicts with C99 isfinite().

2003-06-19  Marius Vollmer  <mvo@zagadka.de>

        * deprecated.h, deprecated.c (scm_strhash, scm_sym2ovcell_soft,
        scm_sym2ovcell, scm_intern_obarray_soft, scm_intern_obarray,
        scm_symbol_value0, scm_string_to_obarray_symbol scm_intern_symbol,
        scm_unintern_symbol, scm_symbol_binding, scm_symbol_interned_p,
        scm_symbol_bound_p, scm_symbol_set_x, scm_gentemp): Re-added from
        the release_1_6 branch.

2003-06-14  Stefan Jahn  <stefan@lkcc.org>

        * threads.h: Redefined scm_getspecific() and scm_setspecific()
        to be functions instead of macros.

        * threads.c: Conditionalized inclusion of <sys/time.h> and
        <unistd.h>.
        (scm_getspecific, scm_setspecific): Made these two function
        real part of the API.

        * posix.c (s_scm_putenv): Added some code to make a 
        (putenv "FOO="), i.e. setting an empty string, work also on
        Win32 systems.  Thanks to Kevin Ryde for the proposal.

2003-06-12  Kevin Ryde  <user42@zip.com.au>

        * posix.c (scm_putenv): Free temporary ptr in mingw unset.  Add
        freebsd to comment about need to use unsetenv.

2003-06-02  Marius Vollmer  <mvo@zagadka.de>

        * ports.c (scm_peek_char): Safe the column of the port around the
        getc/ungetc calls.  Thanks to Dr. Peter Ivanyi!

2003-06-07  Kevin Ryde  <user42@zip.com.au>

        * tags.h: Use inttypes.h and stdint.h when available, for INTPTR_MAX
        and friends required by scm_t_bits setups.

2003-06-06  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * tags.h (scm_tc2_int): Added.

        * tags.h (scm_tc3_int_1, scm_tc3_int_2): Expressed in terms of
        scm_tc2_int.

        * tags.h (scm_tcs_cons_imcar, scm_tcs_cons_nimcar, scm_tcs_struct,
        scm_tcs_closures): Hard coded values replaced by symbolic ones.

2003-06-05  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c: Partially undid my patch from 2003-05-31.  This patch
        caused the segfault referenced in the previous changelog entry.

2003-06-05  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * tags.h: Fixed comment about the immediate type code layout.

        * eval.c: Fixed handling of non-special instructions.  Without
        this patch, guile will segfault on (#\0) and similar instructions.

2003-06-05  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_max, scm_min): For inum, bignum and real, if other
        operand is NaN, then return NaN.  Also avoid passing NaN to mpz_cmp_d.

        * read.c (scm_input_error): Pass arg list parameter to scm_error_scm,
        rather than SCM_EOL.  Needed by "Unknown # object" case in scm_lreadr.
        
2003-06-04  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h, gc-card.c (SCM_DEBUG_DEBUGGER_SUPPORT,
        SCM_DEBUG_DEBUGGING_SUPPORT): Renamed macro
        SCM_DEBUG_DEBUGGER_SUPPORT to SCM_DEBUG_DEBUGGING_SUPPORT and
        generalized it to apply not only to C level functions but also to
        scheme level functions.

        * debug.c, debug.h, eval.c (make-iloc, scm_make_iloc, iloc?,
        scm_iloc_p, dbg-make-iloc, scm_dbg_make_iloc, dbg-iloc?,
        scm_dbg_iloc_p): Moved functions scm_make_iloc, scm_iloc_p to
        eval.c, made them available under SCM_DEBUG_DEBUGGING_SUPPORT == 1
        only and renamed them to scm_dbg_make_iloc, scm_dbg_iloc_p,
        respectively.

        * deprecated.h, eval.c, eval.h (SCM_ILOC00, SCM_IDINC,
        SCM_IDSTMSK): Deprecated.  The macro definitions are moved from
        eval.h into eval.c and a copy is placed into deprecated.h.

        * eval.c, eval.h (SCM_MAKE_ILOC): Removed from eval.h and placed
        into eval.c. This definition was not part of the API in any
        officially released version of guile and thus does not need to go
        through a phase of deprecation.

2003-06-02  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * deprecated.c, deprecated.h, eval.c, eval.h (scm_s_expression,
        scm_s_test, scm_s_body, scm_s_bindings, scm_s_variable,
        scm_s_clauses, scm_s_formals): Deprecated.  In eval.c the
        definitions are make static and renamed from scm_s_xxx to s_xxx.
        In deprecated.c the original definitions are copied.

        * deprecated.h, eval.c, eval (SCM_EVALIM2, SCM_EVALIM, SCM_XEVAL,
        SCM_XEVALCAR): Deprecated.  The macro definitions are moved from
        eval.h into eval.c and a copy (slightly modified to work in user
        code) is placed into deprecated.h.

        * eval.c: Use the local static s_xxx definitions instead of the
        scm_s_xxx definitions throughout.

2003-06-01  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        This set of patches separates the representation of the cxr family
        of functions (car, cdr etc.) from the dsubr family of functions
        (i. e. functions that take a double precision floating point
        argument).  Further, the algorithm for handling the cxr function
        is improved.

        * eval.c (SCM_CEVAL, SCM_APPLY, scm_trampoline_1), numbers.c
        (scm_asinh, scm_acosh, scm_atanh, scm_truncate, scm_round, floor,
        ceil, sqrt, fabs, exp, log, sin, cos, tan, asin, acos, atan, sinh,
        cosh, tanh), objects.c (scm_class_of), procprop.c
        (scm_i_procedure_arity), ramap.c (scm_array_map_x), tags.h
        (scm_tc7_dsubr, scm_tcs_subrs): Introduce scm_tc7_dsubr as new
        typecode for the dsubr family of functions.

        * ramap.c (ramap_cxr, ramap_dsubr): Renamed ramap_cxr to
        ramap_dsubr.

        * eval.c (SCM_CEVAL, SCM_APPLY, call_cxr_1), pairs.c
        (scm_init_pairs): Make use of the (now usable) second cell element
        of a scm_tc7_cxr function to implement the cxr family of functions
        more efficiently.

2003-05-31  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_CEVAL, SCM_APPLY, scm_trampoline_0,
        scm_trampoline_1, scm_trampoline_2): Postpone error cases to the
        end of an if-else-if-sequence of checks.

2003-05-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_CEVAL): Improved readability of call-with-values
        execution.  Generalize apply_closure to apply_proc and use that
        for call-with-values.

2003-05-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_CEVAL): Avoid one level of indirection when applying
        a non closure.

2003-05-30  Stefan Jahn  <stefan@lkcc.org>

        * posix.c (s_scm_putenv): Use the new HAVE_UNSETENV 
        appropriately for mingw32 hosts.

        * numbers.h: Defining copysign(), isnan() and finite() to
        be prefixed by a single '_' for mingw32 hosts.

2003-05-30  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (z_negative_one): New variable.
        (scm_init_numbers): Initialize it.
        (scm_logcount): Use it and mpz_hamdist to count zeros for negatives.

2003-05-29  Stefan Jahn  <stefan@lkcc.org>

        * win32-dirent.c: Use malloc() instead of scm_malloc().

        * stime.c (s_scm_strftime): Add a type cast to avoid compiler
        warning.

        * posix.c (s_scm_putenv): Disable use of unsetenv() for the
        mingw32 build.

        * modules.c (s_scm_module_import_interface): Renamed local
        variable interface to _interface.  Seems like 'interface'
        is a special compiler directive for the mingw32 compiler.

        * mkstemp.c: Provide prototype to avoid compiler warning.

        * load.c (s_scm_search_path): Fixed absolute and relative
        path detections for native Windows platforms.

        * gc.h, threads.h: Export some more symbols using SCM_API (necessary 
        to build on mingw32).

        * gc-freelist.c ("s_scm_map_free_list", 
        "s_scm_gc_set_debug_check_freelist_x"): Fixed use of FUNC_NAME.

        * fports.c (fport_fill_input): Disable use of 
        fport_wait_for_input() on Win32 platforms.

        * filesys.c (s_scm_basename): Fixed __MINGW32__ code.

        * Makefile.am: Modified some rules for cross compiling.

2003-05-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_CEVAL): In case of an application, all checks for a
        proper function object and the correct number of arguments are now
        performed in the application part of SCM_CEVAL.

        (scm_badformalsp):  Removed.

2003-05-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * deprecated.c (scm_read_and_eval_x):  Fixed C99-ism.

2003-05-22  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * num2integral.i.c (NUM2INTEGRAL): Avoid warning about conditional
        always being false by inserting preprocessor conditional.  (Thanks
        to Bruce Korb.)

        * __scm.h (SCM_STACK_PTR): New macro. (Cast argument through
        (void *) in order to avoid an aliasing warning; thanks to Bruce
        Korb.)

        * stackchk.h (SCM_STACK_OVERFLOW_P): Use SCM_STACK_PTR.

        * threads.c (suspend, launch_thread, scm_threads_mark_stacks): Use
        SCM_STACK_PTR.

        * threads.c (scm_threads_mark_stacks): Bugfix: Changed
        thread->base --> t->base.

        * eval.c (SCM_CEVAL): Don't cast argument of SCM_STACK_OVERFLOW_P.

2003-05-20  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * deprecated.h, deprecated.c (scm_makstr, scm_makfromstr,
        scm_variable_set_name_hint, scm_builtin_variable,
        scm_internal_with_fluids, scm_make_gsubr,
        scm_make_gsubr_with_generic, scm_create_hook, SCM_LIST0,
        SCM_LIST1, SCM_LIST2, SCM_LIST3, SCM_LIST4, SCM_LIST5, SCM_LIST6,
        SCM_LIST7, SCM_LIST8, SCM_LIST9, scm_listify, scm_sloppy_memq,
        scm_sloppy_memv, scm_sloppy_member, scm_read_and_eval_x,
        scm_subr_entry, SCM_SUBR_DOC, scm_make_subr,
        scm_make_subr_with_generic, scm_make_subr_opt,
        scm_call_catching_errors, scm_make_smob_type_mfpe,
        scm_set_smob_mfpe, scm_strprint_obj, scm_read_0str, scm_eval_0str,
        SCM_CHARS, SCM_UCHARS, SCM_LENGTH): Re-added from the release_1_6
        branch.  Some have been slightly rewritten.
        (scm_i_object_chars, scm_i_object_length): New, to support
        SCM_CHARS, SCM_UCHARS, and SCM_LENTH.
        
2003-05-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_m_do, unmemocopy, SCM_CEVAL):  Reversed order of
        names and inits in the memoized code of do.

2003-05-19  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * c-tokenize.lex (yyget_lineno, yyget_in, yyget_out, yyget_leng,
        yyget_text, yyset_lineno, yyset_in, yyset_out, yyget_debug,
        yyset_debug, yylex_destroy): Added prototypes (otherwise we'll get
        a compilation error if error-on-warning is enabled).

2003-05-17  Marius Vollmer  <mvo@zagadka.de>

        * c-tokenize.lex: Gobble up complete lines after a '#'.  This
        removes preprocessor directives from the snarfage that might
        otherwise confuse us.  These directives appear when compiling with
        "-g3", for example.

2003-05-16  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * ChangeLog: add my surname

        * srcprop.c (scm_finish_srcprop): use
        scm_gc_register_collectable_memory()
        (scm_make_srcprops): idem.

2003-05-14  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * gc-malloc.c (scm_gc_register_collectable_memory): avoid
        wrap-around for scm_mtrigger
        (scm_gc_register_collectable_memory): abort on overflowing
        scm_mallocated().

2003-05-13  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (xmpz_cmp_d): New macro, handling infs if gmp doesn't.
        (scm_num_eq_p, scm_less_p, scm_max, scm_min): Use it.

2003-05-12  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * backtrace.c (scm_display_error_message): Introduced fancy
        printing with max level 7 and length 10.  (Purpose: avoid printing
        gigantic objects in error messages.)

        * print.c, print.h (scm_i_port_with_print_state): New function.

        * print.c (scm_iprin1, scm_printer_apply,
        scm_port_with_print_state): Use scm_i_port_with_print_state.
        (scm_simple_format): Modified not to destroy print states.
        (print_state_mutex): New mutex.
        (scm_make_print_state, scm_free_print_state, scm_prin1):
        Lock/unlock print_state_mutex.
        
        * deprecated.h (SCM_GC8MARKP, SCM_SETGC8MARK, SCM_CLRGC8MARK):
        Use current names in definitions.

2003-05-10  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_num_eq_p, scm_less_p): Don't pass NaN to mpz_cmp_d.

        * numbers.c (scm_integer_length): On negative bignums, adjust
        mpz_sizeinbase to account for it looking at absolute value where we
        want ones-complement.

        * numbers.c (scm_gcd): In bignum/inum, don't pass yy==0 to mpz_gcd_ui
        since we're only using the ulong return value, and x might not fit.

2003-05-06  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c, eval.h, read.c, read.h (scm_sym_dot): Moved from eval to
        read.  This will allow to make the definition in read.c static.

2003-05-06  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c, eval.h, evalext.c, evalext.h (scm_m_undefine): Moved
        from evalext to eval.  This will allow to make some of the
        definitions in eval.c static.

2003-05-06  Kevin Ryde  <user42@zip.com.au>

        * numbers.c (scm_difference): In inum - bignum, handle negative inum.
        (scm_logcount): Use mpz_com, not mpz_neg.

2003-05-04  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        The purpose of this patch is to make guile's internal memoizers
        distinguishable from memoizing macros created on the scheme level
        or from user provided primitive memoizing macros.  The reason is,
        that the internal memoizers are the only ones that are allowed to
        transform their scheme input into memoizer byte code, while all
        other memoizing macros may only transform scheme code into new
        scheme code.

        To achieve this, a new macro type 'builtin-macro!' is introduced.
        Currently, 'builtin-macro!'s are handled as memoizing macros, but
        this will change when the memoizer and executor are separated.

        * macros.[ch] (scm_i_makbimacro): New.

        * macros.h (SCM_BUILTIN_MACRO_P): New.

        * macros.c (macro_print, scm_macro_type): Support builtin-macro!s.

        * eval.c, goops.c: All of guile's primitive memoizing macros are
        primitive builtin-macros now.

        * eval.c (scm_macroexp, SCM_CEVAL): Make sure the primitive
        builtin-macros are handled equally to memoizing macros.

2003-05-04  Marius Vollmer  <mvo@zagadka.de>

        * throw.c (scm_ithrow): Remove "asm volatile" hack.  It used to
        work around a bug in GCC 2.95.2 but is now a bug in itself.

2003-05-02  Marius Vollmer  <mvo@zagadka.de>

        * deprecated.h (scm_rstate, scm_rng, SCM_SLOPPY_CONSP,
        SCM_SLOPPY_NCONSP, scm_tc7_ssymbol, scm_tc7_msymbol,
        scm_tcs_symbols): New.

2003-04-30  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * deprecated.h, deprecated.c (scm_protect_object,
        scm_unprotect_object, SCM_SETAND_CAR, SCM_SETOR_CAR,
        SCM_SET_AND_CDR, SCM_SET_OR_CDR, SCM_FREEP, SCM_NFREEP,
        SCM_GC8MARKP, SCM_SETGC8MARK, SCM_CLRGC8MARK, SCM_GCTYP16,
        SCM_GCCDR, scm_remember, scm_the_root_module, scm_make_module,
        scm_ensure_user_module, scm_load_scheme_module, scm_port,
        scm_ptob_descriptor, scm_port_rw_active,
        scm_close_all_ports_except): New.

        * ports.c (scm_c_port_for_each): New function, mostly copied from
        scm_port_for_each.
        (scm_port_for_each): Reimplemented using scm_c_port_for_each.
        * ports.h (scm_c_port_for_each): New prototype.
        
2003-04-28  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * eval.c (scm_m_atdispatch): Removed until actually needed.  (This
        macro was introduced in anticipation of GOOPS method compilation
        code.)

        * goops.c: Removed binding of @dispatch.

2003-04-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c, goops.c (@dispatch, @slot-ref, @slot-set!): Move the
        instructions that bind the macros on the scheme level back to
        goops.c in order to make sure again that the bindings go into the
        (oop goops) module and are not visible from the outside.

2003-04-27  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c: Non functional change: Separated R5RS and non-R5RS
        macros into different sections of the file and ordered the
        memoizers alphabetically.

2003-04-27  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_ilookup):  Rewritten to improve readability.

2003-04-27  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_i_call_closure_0, call_closure_1, call_closure_2):
        Partially reverted patch from 2003-04-23 in oder to find a better
        compromise between readability and debuggability.

2003-04-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c, eval.h, goops.c, goops.h (scm_m_atslot_ref,
        scm_m_atslot_set_x, scm_m_atdispatch): Move the declarations and
        definitions of the special goops memoizers from goops.[ch] to
        eval.[ch].  Hmm... it seems that scm_m_atdispatch is not used
        throughout guile.

2003-04-24  Mikael Djurfeldt  <mdj@kvast.blakulla.net>

        * ports.c, ports.h (scm_i_port_table_mutex): New mutex.

        * fports.c (scm_evict_ports): Lock/unlock scm_i_port_table_mutex.

        * ports.c (scm_close_port, scm_flush_all_ports): Ditto.

        * ioext.c (scm_fdes_to_ports): Ditto.

        * vports.c (scm_make_soft_port): Changed SCM_DEFER/ALLOW_INTS into
        lock/unlock scm_i_port_table_mutex.

        * strports.c (scm_mkstrport): Ditto.

        * ports.c (scm_void_port, scm_port_for_each): Ditto.

        * fports.c (scm_fdes_to_port): Ditto.

2003-04-23  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        This set of patches contains no functional changes, only debatable
        minor stylistic ones.  Still, in order to prepare a patch between
        my local copy and the CVS version, I decided to submit the changes
        below.  Then, the patch will hopefully only contain relevant
        modifications :-)

        * eval.c (iqq): Added const specifier.

        * eval.c (scm_trampoline_0, scm_trampoline_1, scm_trampoline_2):
        Use NULL instead of 0 to indicate that a pointer is returned.
        Removed some misleading 'fall through' comments.

        * eval.c (scm_i_call_closure_0, call_closure_1, call_closure_2):
        Split up long expressions into smaller ones to be more debugging
        friendly.

2003-04-23  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.h (SCM_ENTER_FRAME_HDLR, SCM_APPLY_FRAME_HDLR,
        SCM_EXIT_FRAME_HDLR): Use SCM_PACK to convert data to a SCM value
        rather than casting to SCM.

2003-04-23  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * sort.c, pairs.h: Removed unnecessary includes.

2003-04-23  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * sort.c: Replaced hand-made trampline code by the new official
        mechanism from eval.c.  This fixes a segfault in the new test file
        sort.test.

        (quicksort, compare_function, scm_restricted_vector_sort_x,
        scm_sorted_p, scm_merge, scm_merge_list_x, scm_merge_x,
        scm_merge_list_step, scm_sort_x, scm_sort, scm_merge_vector_x,
        scm_merge_vector_step, scm_stable_sort_x, scm_stable_sort,
        scm_sort_list_x, scm_sort_list): Use trampoline mechanism from
        eval.c.

        (subr2less, lsubrless, closureless, applyless, scm_cmp_function,
        cmp_fun_t): Removed.

        (compare_function): Added.

        * sort.c (quicksort, SWAP, stack_node): Replaced pointer
        arithmetics with index arithmetics.  Changed quicksort to work on
        an array of SCM values instead of an array of characters.  Avoid
        bytewise copying of SCM elements.  Avoid allocating memory on the
        stack with alloca.  Fixed some comments.

2003-04-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (EXTEND_ENV): Eliminated.

        (unmemocopy, SCM_CEVAL, SCM_APPLY): Use SCM_EXTEND_ENV instead of
        EXTEND_ENV.

2003-04-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h (SCM_DEBUG_DEBUGGER_SUPPORT): New compile-time option.

        * gc.card.c (scm_gc_marked_p): Fixed compiler warning when
        compiling with SCM_DEBUG==1 by moving definition behind prototype.

        * gc.card.c (scm_dbg_t_list_cell, scm_dbg_t_double_cell,
        scm_dbg_gc_marked_p, scm_dbg_gc_get_card, scm_dbg_gc_get_bvec,
        scm_t_list_cell_struct, scm_t_list_cell, scm_t_double_cell,
        scm_gc_marked_p, scm_gc_get_card, scm_gc_get_bvec): Fixed
        functions such that they check if the object is a non-immediate.
        Further, renamed identifiers to use the scm_dbg_ prefix and made
        their inclusion into the lib dependent of the
        SCM_DEBUG_DEBUGGER_SUPPORT compile time option.

2003-04-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h: Fixed comment about the SCM_DEBUG_TYPING_STRICTNESS
        debug option.

2003-04-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * list.c (scm_ilength, scm_last_pair), unif.c (l2ra): Prefer
        !SCM_CONSP over SCM_NCONSP.  Now, guile itself does not include
        any calls to SCM_NCONSP any more.

        * unif.c (l2ra): Eliminate redundant check.

2003-04-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * list.c (scm_cons_star), ramap.c (scm_ra_sum, scm_ra_product,
        scm_array_map_x), unif.c (l2ra): Prefer !SCM_NULLP over
        SCM_NNULLP.  Now, guile itself does not include any calls to
        SCM_NNULLP any more.

2003-04-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (unmemocopy, SCM_APPLY, scm_map, scm_for_each,
        scm_copy_tree): Place assignment expressions which are part of
        other expressions into an expression of their own.

2003-04-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * goops.c (TEST_CHANGE_CLASS, scm_sys_initialize_object): Don't
        compare SCM values with !=.

2003-04-20  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c, eval.h, evalext.c, evalext.h (scm_sym_setter,
        scm_m_generalized_set_x, scm_init_evalext): Move the declaration
        and definition of the memoizer for the generalized set! macro from
        evalext.[ch] to eval.[ch].  Use the SCM_SYNTAX snarfer macro to
        define the macro object.

        * eval.c, eval.h (s_set_x, scm_s_set_x, scm_m_set_x,
        scm_m_generalized_set_x): Since now scm_s_set_x is only used in
        eval.c, it is made static and renamed to s_set_x.

        * evalext.c (scm_defined_p, scm_m_undefine): Prefer !SCM_<foo>
        over SCM_N<foo>.

2003-04-20  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c, root.h (scm_undefineds, SCM_NUM_PROTECTS, undefineds,
        scm_init_eval): Made scm_undefineds static in eval.c, renamed it
        to undefineds and registered the object as a permanent object.

        * eval.c, eval.h (scm_f_apply, scm_init_eval): Made scm_f_apply
        static in eval.c, renamed it to f_apply and registered the object
        as a permanent object.

2003-04-20  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_BIT7, SCM_BIT8, unmemocopy, SCM_CEVAL): Renamed
        file-local macro SCM_BIT8 to SCM_BIT7, which is more appropriate.

2003-04-20  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_logtest):  Fixed argument bug in the call to
        mpz_and, which showed up when compiling with SCM_DEBUG defined.

2003-04-20  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc-card.c (scm_i_sweep_card, scm_i_init_card_freelist): Fixed
        type errors that showed up when compiling with SCM_DEBUG defined.

2003-04-20  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * continuations.c, continuations.h, eval.c, eval.h, extensions.c,
        gsubr.c, guile.c, init.c, read.c, root.c, root.h, stackchk.h,
        throw.c: Removed uses of DEBUG_EXTENSIONS and DYNAMIC_LINKING to
        fix compile errors with --disable-deprecated.

2003-04-17  Rob Browning  <rlb@defaultvalue.org>

        * numbers.c (scm_integer_expt): fix case where we were declaring
        vars in the middle of a statement block.  Thanks to Thamer
        Al-Harbash.

2003-04-17  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * goops.c (TEST_CHANGE_CLASS): Update variable class after class
        change.

        * eq.c (scm_eqv_p): Turned into a primitive generic.

2003-04-16  Rob Browning  <rlb@defaultvalue.org>

        * gc_os_dep.c: Added patch for UnixWare and OpenUNIX support.
        Thanks to Boyd Gerber.
        Added check for __arm__ in addition to arm for LINUX and copied
        __s390__ defines from upstream libgc. Thanks to James Treacy for
        reporting the problems.

        * numbers.c (PTRDIFF_MIN): use SCM_CHAR_BIT.

        * socket.c: use SCM_CHAR_BIT.

        * random.c (scm_c_random_bignum): use SCM_CHAR_BIT.

        * num2integral.i.c (NUM2INTEGRAL): use SCM_CHAR_BIT.

2003-04-16  Mikael Djurfeldt  <mdj@kvast.blakulla.net>

        * feature.c (scm_init_feature): Always add threads feature.

2003-04-15  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * goops.c (scm_sys_fast_slot_ref): Use SCM_SLOT instead of
        scm_at_assert_bound_ref.  (We don't want the unbound check.  See
        oop/goops/active-slot.scm.)

2003-04-14  Rob Browning  <rlb@defaultvalue.org>

        * tags.h: scm_t_intptr should have been intptr_t.

2003-04-13  Rob Browning  <rlb@defaultvalue.org>

        * __scm.h (SCM_FLUSH_REGISTER_WINDOWS): don't just rely on "sparc"
        test.  Instead use
        #if defined (sparc) || defined (__sparc__) || defined (__sparc)
        as gc_os_dep.c suggests is appropriate.

        * goops.c (prep_hashsets): make static to match prototype.
        (scm_sym_args): SCM_SYMBOL -> SCM_GLOBAL_SYMBOL.  Thanks to Albert
        Chin.
        
        * c-tokenize.lex: remove trailing comma from enum.  Thanks to
        Albert Chin.

        * gc_os_dep.c: add NetBSD powerpc config info.  Thanks to Thomas
        Klausner.

2003-04-13  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * goops.c (scm_sys_prep_layout_x): Instance allocation is now
        indicated through extra fields in getters-n-setters.
        (scm_add_slot): Adapted to new format of getters_n_setters slot.
        (Thanks to Andy Wingo.)

2003-02-25  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * gc-segment.c: add comment

2003-04-07  Rob Browning  <rlb@defaultvalue.org>

        * debug.h: change "id" arg name to "info_id" to avoid objective-c
        clash.

        * num2integral.i.c (NUM2INTEGRAL): fix bug pointed out by Mikael
        and add regression test to standalone/.

2003-04-06  Rob Browning  <rlb@defaultvalue.org>

        * strings.c (scm_mem2string): use memcpy rather than by-hand loop.
        Thanks to Dale P. Smith.

        * random.c: #include gmp.h.
        (scm_c_random_bignum): normalize result on return.

        * init.c: #include gmp.h.

        * numbers.h: remove the gmp.h #include (not needed now).

        * posix.h: change occurences of "id" to something else so we don't
        cause trouble when included via objective-c (can't hurt, might
        help).  Still have usage in debug.h, though.

2003-04-06  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * random.c (scm_c_random_bignum): Don't generate a random number
        equal to m (the second argument of scm_c_random_bignum); only
        generate numbers in the range 0 <= r < m.
        (scm_c_default_rstate): Use SCM_VARIABLE_REF to access
        scm_var_random_state.

        * num2integral.i.c (INTEGRAL2BIG): Put negation of n inside then
        clause.

2003-04-05  Rob Browning  <rlb@defaultvalue.org>

        * modules.c (scm_module_import_interface): move declaration of
        uses before any code.

2003-04-05  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * Makefile.am (scmconfig.h): Look for config.h in top_builddir,
        not top_srcdir.

        * hashtab.c (rehash_after_gc): Clear to_rehash list before
        processing it in order to avoid an infinite loop.

        * print.c (scm_prin1): Remember old state of pstate->writingp.

2003-04-05  Marius Vollmer  <mvo@zagadka.de>

        * Changed license terms to the plain LGPL thru-out.

2003-04-04  Rob Browning  <rlb@defaultvalue.org>

        * socket.c (FLIPCPY_NET_HOST_128): new macro.
        (ipv6_net_to_num, ipv6_num_to_net, bignum_in_ipv6_range_p):
        rewrite to handle GMP bignums.


        * random.c (scm_c_random_bignum): rewrite to handle GMP bignums.

        * ports.c (scm_getc): minor tweak.

        * numbers.h: remove SCM_BIGDIG conditionals, reorganize, and
        rewrite to handle GMP bignums.

        * numbers.c: rewrite *many* functions to handle GMP bignums.

        * num2integral.i.c (NUM2INTEGRAL, INTEGRAL2NUM, INTEGRAL2BIG):
        handle GMP bignums.

        * num2float.i.c (NUM2FLOAT): handle GMP bignums.

        * init.c (check_config): remove SCM_BIGDIG conditionals.
        (scm_init_guile_1): test to make sure mpz_t fits in a double_cell.

        * gc-card.c ("sweep_card"): handle new mpz_t bignums.

        * eval.c: remove SCM_BIGDIG conditionals.

        * eq.c (s_scm_eqv_p): scm_i_bigcomp -> scm_i_bigcmp.

2003-03-31  Rob Browning  <rlb@defaultvalue.org>

        * Makefile.am (scmconfig.h): change srcdir to builddir.  (Thanks
        to Kevin Ryde.)

2003-03-27  Rob Browning  <rlb@defaultvalue.org>

        * threads.h: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * threads.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * tags.h: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * stacks.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * stackchk.h: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * stackchk.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * sort.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * read.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * random.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * print.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * objects.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * numbers.h: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * null-threads.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * lang.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * lang.h: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * iselect.h: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * init.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * gh_data.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * gh.h: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * gen-scmconfig.c: change most new public symbols to be defined to
        0 or 1 rather than being either 1 or undefined.

        * gc_os_dep.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.
        (STACK_GROWS_DOWN): define to 0 or 1 rather than 1 or undef.

        * gc.h: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * gc-card.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * gc-mark.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * feature.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * evalext.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * eval.h: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * eval.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * eq.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * coop.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * coop-threads.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * coop-pthreads.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * coop-defs.h: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * convert.i.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * continuations.c: fix various preprocessor usages of new public
        symbols to expect 0 or 1 values rather than 1 or undefined.
        i.e. change #ifdef to #if, etc.

        * _scm.h: fix various preprocessor usages of new public symbols to
        expect 0 or 1 values rather than 1 or undefined.  i.e. change
        #ifdef to #if, etc.

2003-03-26  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * init.c (scm_init_guile_1): Call scm_i_init_deprecated.

        * deprecated.c, deprecated.h: New files, to collect deprecated
        things in one place.
        * Makefile.am: Added them in all the right places.

        * Makefile.am (EXTRA_DIST): Added "scmconfig.h.top".
        (scmconfig.h): Get "scmconfig.h.top" from $(srcdir) so that VPATH
        builds work.
        (DOT_X_FILES): Removed "iselect.x".
        (DOT_DOC_FILES): Removed "iselect.doc".
        
2003-03-25  Rob Browning  <rlb@defaultvalue.org>

        * win32-socket.h: #include "libguile/__scm.h".  Replace usage of
        HAVE_WINSOCK2_H with SCM_HAVE_WINSOCK2_H.

        * win32-socket.c: #include <config.h> if HAVE_CONFIG_H.

        * vports.c: #include <config.h> if HAVE_CONFIG_H.

        * unif.c: #include <config.h> if HAVE_CONFIG_H.  Replace usage of
        HAVE_LONG_LONGS with "SCM_SIZEOF_LONG_LONG != 0".

        * threads.h: replace usage of struct timespect with
        scm_t_timespec.  Replace usage of USE_PTHREAD_THREADS with
        SCM_USE_PTHREAD_THREADS.  Remove typedef for struct timespec in
        favor of scm_t_timespec from scmconfig.h.

        * threads.c: move libguile/_scm.h include to the top so we pick up
        any critical defines like _GNU_SOURCE early.  Replace usage of
        struct timespect with scm_t_timespec.  Replace usage of
        STACK_GROWS_UP with SCM_STACK_GROWS_UP.  Replace usage of
        USE_PTHREAD_THREADS with SCM_USE_PTHREAD_THREADS.

        * threads-plugin.h: replace usage of struct timespect with
        scm_t_timespec.

        * threads-plugin.c: #include <config.h> if HAVE_CONFIG_H.  Replace
        usage of struct timespect with scm_t_timespec.

        * tags.h: move HAVE_STDINT_H handling to scmconfig.h.  Move
        HAVE_INTTYPES_H handling to scmconfig.h.  #include
        "libguile/__scm.h".  Rework handling for scm_t_bits,
        scm_t_signed_bits, SCM_T_BITS_MAX, SCM_T_SIGNED_BITS_MAX,
        SCM_T_SIGNED_BITS_MIN, and SIZEOF_SCM_T_BITS to use scm_t_intptr,
        scm_t_uintptr, SCM_SIZEOF_INTPTR_T, and SCM_SIZEOF_UINTPTR_T, and
        SCM_SIZEOF_UNSIGNED_LONG.  Rename usage of HAVE_ARRAYS to
        SCM_HAVE_ARRAYS.

        * symbols.c: #include <config.h> if HAVE_CONFIG_H.

        * struct.c: #include <config.h> if HAVE_CONFIG_H.

        * strports.c: #include <config.h> if HAVE_CONFIG_H.

        * strop.c: #include <config.h> if HAVE_CONFIG_H.

        * stime.h: move handling of time related headers to scmconfig.h.

        * stime.c: #include <config.h> if HAVE_CONFIG_H.

        * stacks.c: replace usage of STACK_GROWS_UP with
        SCM_STACK_GROWS_UP.

        * sort.c: #include <config.h> if HAVE_CONFIG_H.  Rename usage of
        HAVE_ARRAYS to SCM_HAVE_ARRAYS.

        * socket.c: #include <config.h> if HAVE_CONFIG_H.  Replace usage
        of uint32 and HAVE_UINT_32 with scm_t_int32.

        * smob.c: #include <config.h> if HAVE_CONFIG_H.

        * simpos.c: #include <config.h> if HAVE_CONFIG_H.

        * script.c: #include <config.h> if HAVE_CONFIG_H.

        * scmsigs.c: #include <config.h> if HAVE_CONFIG_H.

        * scmconfig.h.top: new file -- preamble for scmconfig.h.

        * rw.c: #include <config.h> if HAVE_CONFIG_H.

        * regex-posix.c: #include <config.h> if HAVE_CONFIG_H.

        * read.c: rename usage of HAVE_ARRAYS to SCM_HAVE_ARRAYS.

        * rdelim.c: #include <config.h> if HAVE_CONFIG_H.

        * random.c: #include <config.h> if HAVE_CONFIG_H.  Replace usage
        of LONG32, LONG64, SIZEOF_LONG, and HAVE_LONG_LONGS with
        scm_t_int32, scm_t_int64, and SCM_HAVE_T_INT64.  Rename usage of
        HAVE_ARRAYS to SCM_HAVE_ARRAYS.

        * ramap.c: replace usage of HAVE_LONG_LONGS with
        "SCM_SIZEOF_LONG_LONG != 0".

        * putenv.c: #include <config.h> if HAVE_CONFIG_H.  #include
        "libguile/scmconfig.h".

        * pthread-threads.c: #include <config.h> if HAVE_CONFIG_H.

        * print.c: rename usage of HAVE_ARRAYS to SCM_HAVE_ARRAYS.
        Replace usage of HAVE_LONG_LONGS with "SCM_SIZEOF_LONG_LONG != 0".

        * posix.c: #include <config.h> if HAVE_CONFIG_H.

        * ports.c: #include <config.h> if HAVE_CONFIG_H.

        * objects.c: rename usage of HAVE_ARRAYS to SCM_HAVE_ARRAYS.

        * numbers.h: replace usage of HAVE_FLOATINGPOINT_H with
        SCM_HAVE_FLOATINGPOINT_H.  Replace usage of HAVE_IEEEFP_H with
        SCM_HAVE_IEEEFP_H.  Replace usage of HAVE_NAN_H with
        SCM_HAVE_NAN_H.  Replace usage of STDC_HEADERS with
        SCM_HAVE_STDC_HEADERS.  Replace usage of ptrdiff_t with
        scm_t_ptrdiff.  Replace usage of HAVE_LONG_LONGS with
        "SCM_SIZEOF_LONG_LONG != 0".

        * numbers.c: #include <config.h> if HAVE_CONFIG_H.  Replace usage
        of HAVE_LONG_LONGS with "SCM_SIZEOF_LONG_LONG != 0".  Replace
        usage of ptrdiff_t with scm_t_ptrdiff.  Replace usage of
        SIZEOF_PTRDIFF_T with SCM_SIZEOF_SCM_T_PTRDIFF.

        * num2integral.i.c: #include <config.h> if HAVE_CONFIG_H.

        * null-threads.h: replace usage of struct timespect with
        scm_t_timespec.

        * net_db.c: #include <config.h> if HAVE_CONFIG_H.

        * mkstemp.c: #include <config.h> if HAVE_CONFIG_H.  #include
        "libguile/__scm.h".  Remove definition of gcc_uint64_t in favor of
        scm_t_uint64 and rename usages.

        * mallocs.c: #include <config.h> if HAVE_CONFIG_H.

        * load.c: #include <config.h> if HAVE_CONFIG_H.

        * iselect.h: move handling of time related headers to scmconfig.h.
        Rename usage of HAVE_SYS_SELECT_H to SCM_HAVE_SYS_SELECT_H.
        Rename usage of HAVE_WINSOCK2_H to SCM_HAVE_WINSOCK2_H.  Rename
        usage of USE_COOP_THREADS to SCM_USE_COOP_THREADS.

        * iselect.c: #include <config.h> if HAVE_CONFIG_H.  Rename usage
        of USE_COOP_THREADS to SCM_USE_COOP_THREADS.  Rename usage of
        USE_NULL_THREADS to SCM_USE_NULL_THREADS.

        * ioext.c: #include <config.h> if HAVE_CONFIG_H.

        * inline.h: #include "libguile/__scm.h" at the top.  Change code
        to use SCM_C_INLINE and SCM_INLINE_C_INCLUDINT_INLINE_H to decide
        what to do instead of creating a new public #define.  Rename usage
        of USE_COOP_THREADS to SCM_USE_COOP_THREADS.  Rename usage of
        USE_NULL_THREADS to SCM_USE_NULL_THREADS.  Rename usage of
        USE_COPT_THREADS to SCM_USE_COPT_THREADS.

        * inline.c: rearrange handling -- now we just #define
        SCM_INLINE_C_INCLUDING_INLINE_H to 1 and #include
        "libguile/inline.h".  scmconfig.h will define SCM_C_INLINE as
        appropriate, and we use that in inline.h along with the above
        define to determine how to respond.

        * init.c: #include <config.h> if HAVE_CONFIG_H.  Rename usage of
        HAVE_ARRAYS to SCM_HAVE_ARRAYS.

        * guile.c: #include <config.h> if HAVE_CONFIG_H.

        * gh_data.c: #include <config.h> if HAVE_CONFIG_H.  Rename usage
        of HAVE_ARRAYS to SCM_HAVE_ARRAYS.

        * gh.h: rename usage of HAVE_ARRAYS to SCM_HAVE_ARRAYS.

        * gen-scmconfig.h.in: new file -- see gen-scmconfig.c for details.

        * gen-scmconfig.c: new file -- see comments in file for details.

        * gdbinit.c: #include <config.h> if HAVE_CONFIG_H.

        * gc_os_dep.c: #include <config.h> if HAVE_CONFIG_H.  Replace
        usage of STACK_GROWS_UP with SCM_STACK_GROWS_UP.

        * gc.h: replace usage of SIZEOF_LONG with
        SCM_SIZEOF_UNSIGNED_LONG.  Replace usage of USE_PTHREAD_THREADS
        with SCM_USE_PTHREAD_THREADS.  Remove SCM_SIZEOF_LONG definition
        since we handle that in scmconfig.h now.

        * gc.c: #include <config.h> if HAVE_CONFIG_H.

        * gc-mark.c: #include <config.h> if HAVE_CONFIG_H.  Rename usage
        of HAVE_ARRAYS to SCM_HAVE_ARRAYS.  Replace usage of
        HAVE_LONG_LONGS with "SCM_SIZEOF_LONG_LONG != 0".

        * gc-malloc.c: #include <config.h> if HAVE_CONFIG_H.

        * gc-card.c: rename usage of HAVE_ARRAYS to SCM_HAVE_ARRAYS.
        Replace usage of HAVE_LONG_LONGS with "SCM_SIZEOF_LONG_LONG != 0".

        * fports.c: #include <config.h> if HAVE_CONFIG_H.

        * filesys.c: #include <config.h> if HAVE_CONFIG_H.

        * feature.c: #include <config.h> if HAVE_CONFIG_H.  Rename usage
        of USE_NULL_THREADS to SCM_USE_NULL_THREADS.

        * extensions.c: #include <config.h> if HAVE_CONFIG_H.

        * evalext.c: rename usage of HAVE_ARRAYS to SCM_HAVE_ARRAYS.
        Replace usage of HAVE_LONG_LONGS with "SCM_SIZEOF_LONG_LONG != 0".

        * eval.c: #include <config.h> if HAVE_CONFIG_H.  #include
        "libguile/__scm.h" rather than scmconfig.h.  Rename usage of
        HAVE_ARRAYS to SCM_HAVE_ARRAYS.  Replace usage of HAVE_LONG_LONGS
        with "SCM_SIZEOF_LONG_LONG != 0".

        * error.c: #include <config.h> if HAVE_CONFIG_H.

        * eq.c: #include <config.h> if HAVE_CONFIG_H.  Rename usage of
        HAVE_ARRAYS to SCM_HAVE_ARRAYS.  Replace usage of HAVE_LONG_LONGS
        with "SCM_SIZEOF_LONG_LONG != 0".

        * deprecation.c: #include <config.h> if HAVE_CONFIG_H.

        * coop.c: replace usage of struct timespect with scm_t_timespec.
        #include <config.h> if HAVE_CONFIG_H.

        * coop-threads.c: #include "libguile/_scm.h" early.  Replace
        usage of struct timespect with scm_t_timespec.  Replace usage of
        STACK_GROWS_UP with SCM_STACK_GROWS_UP.

        * coop-pthreads.c: #include "libguile/_scm.h" early.  Replace
        usage of struct timespect with scm_t_timespec.  Replace usage of
        STACK_GROWS_UP with SCM_STACK_GROWS_UP.

        * coop-defs.h: move handling of time related headers to
        scmconfig.h.  Add #include "libguile/__scm.h".  Rename usage of
        HAVE_WINSOCK2_H to SCM_HAVE_WINSOCK2_H.  Replace usage of struct
        timespect with scm_t_timespec.

        * convert.i.c: rename usage of HAVE_ARRAYS to SCM_HAVE_ARRAYS.

        * convert.h: rename usage of HAVE_ARRAYS to SCM_HAVE_ARRAYS.

        * convert.c: #include <config.h> if HAVE_CONFIG_H.  Rename usage
        of HAVE_ARRAYS to SCM_HAVE_ARRAYS.

        * continuations.c: move libguile/_scm.h include to the top so we
        pick up any critical defines like _GNU_SOURCE early.

        * backtrace.c: #include <config.h> if HAVE_CONFIG_H.

        * async.c: #include <config.h> if HAVE_CONFIG_H.

        * alloca.c: #include <config.h> if HAVE_CONFIG_H.

        * _scm.h: #include <config.h> if HAVE_CONFIG_H.
        Rename usage of USE_PTHREAD_THREADS to SCM_USE_PTHREAD_THREADS.

        * __scm.h: move libguile/scmconfig.h include up to the top, so
        we're sure to pick up any critical defines like _GNU_SOURCE early.
        #include <limits.h> removed in favor of scmconfig.h inclusion when
        appropriate.  STDC_HEADERS based inclusion of stdlib.h,
        sys/types.h, stddef.h, and sys/stdtypes.h removed in favor of
        scmconfig.h inclusion when appropriate.  Various Win32 related
        definitions removed in favor of scmconfig.h inclusion when
        appropriate.
        (HAVE_UINTPTR_T): definition removed (see NEWS).
        (SIZEOF_PTRDIFF_T): definition removed (see NEWS).
        (HAVE_LONG_LONGS): definition removed (see NEWS).
        (HAVE_LONG_LONG): definition removed (see NEWS).
        (HAVE_PTRDIFF_T): definition removed (see NEWS).

        * Makefile.am: scmconfig.h is now generated by building and
        running gen-scmconfig.h and capturing its output.  gen-scmconfig
        uses config.h and the configure.in generated gen-scmconfig.h to
        decide what to output.  See gen-scmconfig.c for details.
        (noinst_PROGRAMS): add gen-scmconfig.
        (gen_scmconfig_SOURCES): new variable.
        (gen-scmconfig.$(OBJEXT)): new target - be careful to handle
        cross-compiling right.
        (scmconfig.h): build scmconfig.h from gen-scmconfig's output.
        (BUILT_SOURCES): add scmconfig.h.

2003-03-19  Marius Vollmer  <mvo@zagadka.de>

        * gc_os_dep.c: Added defines for sparc-unknown-netbsdelf1.5 from
        Adrian Bunk.  Thanks!

2003-03-19  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * goops.c (make_class_from_template): New fourth arg:
        applicablep.
        (scm_class_extended_generic_with_setter, scm_class_self): Fixed
        cpls.

        * smob.c (scm_set_smob_apply): Call scm_i_inherit_applicable.

        * goops.c, objects.c, objects.h (scm_make_extended_class): New
        second arg: applicablep.
        (scm_i_inherit_applicable): New function.

        * goops.c, goops.h (scm_class_applicable,
        scm_class_extended_accessor): New classes.

2003-03-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * procs.c (scm_procedure_documentation): Removed redundant
        SCM_NIMP test and replaced other calls to SCM_IMP by more explicit
        predicates.

2003-03-11  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * list.c, list.h (scm_filter, scm_filter_x): New functions.

        * modules.c (scm_module_import_interface): New function.

        * goops.c, goops.h (scm_class_accessor_method): Renamed from
        scm_class_accessor.
        (scm_class_accessor): New class.

2003-03-06  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * goops.c (scm_primitive_generic_generic): Enable primitive
        generic if not enabled.
        (scm_sys_goops_loaded): Setup unextended primitive generics.

        * goops.c, goops.h (scm_c_extend_primitive_generic): New function.

        * snarf.h (SCM_PRIMITIVE_GENERIC, SCM_PRIMITIVE_GENERIC_1): New
        snarf macros.

        * numbers.c (scm_abs): Use SCM_PRIMITIVE_GENERIC.  (This is only a
        testing example.  All uses of SCM_GPROC should be converted.)

        * procprop.c (scm_stand_in_scm_proc): Use scm_assq instead of
        scm_assoc.

        * eq.c (scm_equal_p): Turned into a primitive generic.

2003-02-27  Rob Browning  <rlb@defaultvalue.org>

        * Makefile.am (scmconfig.h): new target -- generate file from
        ../config.h.
        (modinclude_HEADERS): remove version.h.
        (nodist_modinclude_HEADERS): add version.h.

2003-02-24  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        This fixes a serious GC bug, introduced during the latest
        reorganization of the GC, which disabled freeing of structs and
        GOOPS objects:

        * struct.c (scm_struct_prehistory): Init scm_i_structs_to_free to
        SCM_EOL.
        (scm_struct_prehistory): Move scm_free_structs to
        scm_before_mark_c_hook.

        * gc-card.c (sweep_card): Check that we haven't swept structs on
        this card before.  That can happen if scm_i_sweep_all_segments has
        been called from some other place than scm_igc.

2003-02-19  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * environments.c (DEFAULT_OBARRAY_SIZE): Changed from 137 to 31
        (since hash tables now adapt their size).

        * modules.c (scm_modules_prehistory): Changed from 2001 to 1533
        (current number of prehistory bindings; hashtable code will select
        a prime which is greater than this value).

        * symbols.c (scm_symbols_prehistory): Changed from 1009 to 2139
        (current number of initial symbols).

        * properties.c (scm_init_properties): Don't specify size of
        scm_properties_whash.

        * objprop.c (scm_init_objprop): Don't specify size of
        scm_object_whash.

        * keywords.c (scm_init_keywords): Don't specify a hash table size.

        * hooks.c (scm_c_hook_add): Fixed bug in append mode.

        The following changes introduce the use of resizable hash tables
        throughout Guile.  It also renames the old *-hash-table* functions
        to *-alist-vector* and places them, together with the rest of the
        weak vector support, in the module (ice-9 weak-vector).  We should
        probably introduce a new, better, API for weak references, for
        example "weak pairs" a la MIT-Scheme.  (In Chez scheme, they even
        look like and are used like ordinary pairs.)

        * environments.c (obarray_enter, obarray_retrieve, obarray_remove,
        leaf_environment_fold, obarray_remove_all): Use hashtable
        accessors.

        * gc.c (scm_init_storage): Moved hook initialization to
        scm_storage_prehistory.
        (scm_storage_prehistory): New function.
        (scm_igc): Added commentary about placement of
        scm_after_sweep_c_hook.

        * gc-mark.c (scm_mark_all): Use hashtable accessors.
        (scm_gc_mark_dependencies): Use SCM_WVECT_WEAK_KEY_P and
        SCM_WVECT_WEAK_VALUE_P.

        * hashtab.c, hashtab.h (scm_hash_for_each, scm_hash_map): New
        functions.
        (scm_vector_to_hash_table, scm_c_make_resizing_hash_table):
        Removed.
        (scm_make_weak_key_hash_table, scm_make_weak_value_hash_table,
        scm_make_doubly_weak_hash_table): Moved here from weaks.c.

        * init.c (scm_init_guile_1): Removed call to scm_init_weaks; Added
        calls to scm_storage_prehistory and scm_hashtab_prehistory.

        * modules.c (module-reverse-lookup): Use hashtable accessors.

        * symbols.c, symbols.h (scm_i_hash_symbol): New function.

        * weaks.c, weaks.h (scm_make_weak_key_alist_vector,
        scm_make_weak_value_alist_vector,
        scm_make_doubly_weak_alist_vector): New functions.

        * weaks.c (scm_init_weaks_builtins): New function.

        * weaks.h (SCM_WVECTF_WEAK_KEY, SCM_WVECTF_WEAK_VALUE,
        SCM_WVECTF_NOSCAN, SCM_WVECT_WEAK_KEY_P, SCM_WVECT_WEAK_VALUE_P,
        SCM_WVECT_NOSCAN_P): New macros.

        * weaks.c (scm_scan_weak_vectors):  Use SCM_WVECT_WEAK_KEY_P
        and SCM_WVECT_WEAK_VALUE_P.

        * weaks.c, weaks.h (scm_i_allocate_weak_vector): Renamed from
        allocate_weak_vector and exported.

2003-02-13  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * hashtab.c: Undid thread safety.  (We decided that it's better to
        let the user explicitly protect the tables (or not) according what
        is suitable for the application.)

2003-02-12  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * hashtab.c (scm_hash_fn_remove_x, scm_internal_hash_fold): Made
        thread safe and handle resizing tables.
        (scm_ihashx, scm_sloppy_assx, scm_delx_x): Removed
        SCM_DEFER/ALLOW_INTS.

2003-02-11  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * hashtab.c (scm_vector_to_hash_table,
        scm_c_make_resizing_hash_table, scm_make_hash_table): New
        functions.
        (scm_hash_fn_get_handle, scm_hash_fn_create_handle_x): Made thread
        safe and handle resizing tables.

        * weaks.c (scm_make_weak_key_hash_table,
        scm_make_weak_value_hash_table, scm_make_doubly_weak_hash_table):
        Size argument made optional.  Return resizable table if not
        specified.

2003-02-10  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * eval.c (scm_trampoline_0, scm_trampoline_1, scm_trampoline_2):
        Fixed formals tests for closures.  (Thanks to Kevin Ryde.)

2003-02-05  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * debug.c (scm_procedure_source): Handle all objects for which
        procedure? is #t.  (Thanks to Bill Schottstaedt.)

2003-01-23  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * futures.c (mark_futures): Don't need to mark data of recycled
        futures.
        (scan_futures, cleanup_undead): Be smarter about marking
        futures---avoid unnecessary passes through future lists.

        * futures.h, futures.c: New files; Introduced recycling of
        futures.  For fine-grained threading this lifts performance to
        another level.  We can now use parallelization in inner loops of
        Guile programs without impossible overhead.

        * threads.h, threads.c: Moved futures to their own file.

        * Makefile.am (libguile_la_SOURCES): Added futures.c.
        (DOT_X_FILES): Added futures.x.
        (DOT_DOC_FILES): Added futures.doc.
        (modinclude_HEADERS): Added futures.h.

        * threads.c, threads.h (scm_i_create_thread): Renamed from
        create_thread and made global.

        * futures.c (scm_make_future): New procedure.

        * eval.c: #include "libguile/futures.h".

        * init.c: #include "futures.h"
        (scm_init_guile_1): Call scm_init_futures.

        * stime.c (SCM_TIME_UNITS_PER_SECOND): Renamed from CLKTCK.

        * stime.h (SCM_TIME_UNITS_PER_SECOND): Definition moved here.

        * eval.c, eval.h (scm_trampoline_0, scm_i_call_closure_0): New
        functions.

        * eval.c (scm_trampoline_1): Fixed arguments test for closures.

2003-01-22  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * threads.c (create_thread): Don't unwind dynwind chain of parent
        thread before creation.  Just start the new thread with an empty
        dynwind chain.

2003-01-20  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * evalext.c, evalext.h (scm_self_evaluating_p): New function.

2003-01-10  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * threads.c (scm_timed_wait_condition_variable): Support timed
        waiting also for simple condition variables.

        * goops.c (TEST_CHANGE_CLASS): Use scm_change_object_class instead
        of calling the procedure change-object-class.

2003-01-09  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * ramap.c (scm_ramapc): Typo in error message.

2003-01-08  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * goops.c (scm_sys_prep_layout_x): Bugfix: Only create layout for
        slots with instance allocation.
        
        * goops.c, goops.h (scm_class_extended_generic_with_setter): New
        class.
        (scm_compute_applicable_methods): Use scm_generic_function_methods.

        * goops.c (scm_generic_function_methods): Support extended
        generic functions.

2002-12-29  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * eval.c (unmemocopy): Bugfix: scm_sym_delay --> scm_sym_future.
        Thanks to Neil for pointing this out!

2002-12-29  Neil Jerram  <neil@ossau.uklinux.net>

        * lang.h: Remove declarations matching definitions removed from
        lang.c (just below).

2002-12-28  Neil Jerram  <neil@ossau.uklinux.net>

        * lang.c (scm_nil_cons, scm_nil_car, scm_nil_cdr, scm_null,
        scm_m_while, scm_nil_eq): Remove definitions that were superfluous
        and already commented out.

        * read.h (scm_lreadparen), read.c (scm_lreadr, scm_read_token,
        scm_lreadparen): Support reading vectors with Elisp syntax if
        SCM_ELISP_READ_EXTENSIONS is defined.  (SCM_ELISP_READ_EXTENSIONS
        is not currently defined, and there isn't even a configure switch
        to enable it yet.)

2002-12-26  Marius Vollmer  <mvo@zagadka.ping.de>

        * Makefile.am (c-tokenize.o): Refer to source via $< so that vpath
        builds work.
        (EXTRA_DIST): Added version.h.in.
        
2002-12-21  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        This change makes it possible for one thread to do lazy sweeping
        while other threads are running.  Now only the mark phase need to
        have all threads asleep.  We should look further into this issue.
        Presently, I've put the locking of scm_i_sweep_mutex at
        "conservative" places due to my current lack of knowledge about
        the garbage collector.  Please feel free to restrict these regions
        further to allow for maximal parallelism!

        * gc.c, gc.h (scm_i_sweep_mutex): New mutex.

        * gc.c (scm_gc_for_newcell), gc-malloc.c (scm_realloc,
        scm_gc_register_collectable_memory): Substitute locking of
        scm_i_sweep_mutex for calls to scm_i_thread_put_to_sleep.
        (scm_igc): Lock sweep mutex here instead of in callers; Calls to
        scm_i_thread_put_to_sleep/scm_i_thread_wake_up used to demarkate
        the single-thread section (which now only contains the mark
        phase).
        (scm_gc): Don't lock sweeo mutex here since scm_igc locks it;
        Removed SCM_DEFER/ALLOW_INTS.  Simply call scm_igc directly.

        * threads.c (gc_section_mutex): Removed.

2002-12-19  Mikael Djurfeldt  <mdj@kvast.blakulla.net>

        * threads.c (create_thread): Clear parent field in root state in
        order not to unnecessarily remember dead threads.

        * eval.c (call_subr2o_1, call_lsubr2_2): New functions.
        (scm_trampoline_1, scm_trampoline_2): Use them.

2002-12-18  Mikael Djurfeldt  <mdj@kvast.blakulla.net>

        Partial introduction of real plugin interface.

        * Makefile.am (modinclude_HEADERS): Added threads-plugin.h.
        (EXTRA_DIST): Added threads-plugin.c.

        * threads-plugin.h, threads-plugin.c: New files.

        * threads.h: #include "libguile/threads-plugin.h".

        * threads.c: #include "libguile/threads-plugin.c".

        * pthread-threads.c: Temporarily remove debugging functions.

        * threads.c, threads.h (scm_yield): Added back.

2002-12-18  Mikael Djurfeldt  <mdj@kvast.blakulla.net>

        * threads.c (really_launch): Detach before unlocking
        thread_admin_mutex in order not to risk being joined.
        (scm_i_thread_put_to_sleep, scm_i_thread_wake_up): Keep
        thread_admin_mutex locked during GC.

        * pthread-threads.c, pthread-threads.h: Improvements to debugging
        functions.

2002-12-16  Mikael Djurfeldt  <mdj@kvast.blakulla.net>

        * pthread-threads.c, pthread-threads.h (SCM_DEBUG_THREADS): Added
        support for debugging mutex operations.

        * threads.c (scm_thread): Removed filed joining_threads.
        (thread_print): Print thread number as well as address of thread
        structure.
        (scm_join_thread): Bugfix.
        (scm_lock_mutex, scm_try_mutex, scm_unlock_mutex,
        scm_timed_wait_condition_variable, scm_signal_condition_variable,
        scm_broadcast_condition_variable): Use the low-level API.
        (scm_all_threads): Return copy of thread list (to prevent
        unintended destruction).
        (scm_threads_prehistory): Initialize heap_mutex of fake thread.

        * pthread-threads.c, pthread-threads.h, threads.c: Fixes to
        pthread "native" recursive mutex support.

2002-12-15  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * __scm.h (SCM_DEFER_INTS, SCM_ALLOW_INTS): New definitions.
        Simply lock a thread C API recursive mutex.
        (SCM_NONREC_CRITICAL_SECTION_START,
        SCM_NONREC_CRITICAL_SECTION_END, SCM_REC_CRITICAL_SECTION_START,
        SCM_REC_CRITICAL_SECTION_END): Removed.

        * eval.c: Replaced SOURCE_SECTION_START / SOURCE_SECTION_END with
        direct calls to scm_rec_mutex_lock / unlock around the three calls
        to scm_m_expand_body.

        * eval.c, eval.h (promise_free): New function.
        (scm_force): Rewritten;  Now thread-safe; Removed
        SCM_DEFER/ALLOW_INTS.

        * pthread-threads.h: Added partially implemented plugin interface
        for recursive mutexes.  These are, for now, only intended to be
        used internally within the Guile implementation.

        * pthread-threads.c: New file.

        * threads.c: Conditionally #include "pthread-threads.c".

        * eval.c, eval.h (scm_makprom, scm_force): Rewritten to be
        thread-safe;

        * snarf.h (SCM_MUTEX, SCM_GLOBAL_MUTEX, SCM_REC_MUTEX,
        SCM_GLOBAL_REC_MUTEX): New macros.

        * eval.c, threads.c, threads.h, snarf.h: Rewrote critical section
        macros---use mutexes instead.

        * tags.h (SCM_IM_FUTURE): New tag.

        * eval.c (scm_m_future): New primitive macro.
        (SCM_CEVAL): Support futures.
        (unmemocopy): Support unmemoization of futures.

        * print.c (scm_isymnames): Name of future isym.

        * version.c: Unmade some changes to my private copy that got
        committed by mistake.

2002-12-11  Mikael Djurfeldt  <mdj@kvast.blakulla.net>

        * gc-malloc.c, gc.h, init.c: Reverted gc-malloc change of
        2002-12-10.

        * gc.c (scm_igc): Don't call scm_i_thread_invalidate_freelists.

        * gc.c (scm_gc_sweep): Call it here instead, which is a more
        logical place.

        * threads.c (create_thread): Remember root object until the handle
        of the new thread is on all_threads list.

        * root.c (scm_make_root): Moved copying of fluids until after
        creation of root handle so that the fluids are GC protected.  Also
        removed the critical section.

2002-12-10  Mikael Djurfeldt  <mdj@kvast.blakulla.net>

        * gc-malloc.c, gc.h (scm_gc_malloc_prehistory): New function.

        * gc-malloc.c (malloc_mutex): New mutex.
        (scm_gc_malloc_prehistory): Initialize it.
        (scm_realloc): Serialize call to realloc
        (scm_calloc): Same for calloc.
        Thanks to Wolfgang Jaehrling!
        (Now we have to make sure all calls to malloc/realloc are made
        through scm_malloc.)

        * init.c (scm_init_guile_1): Call scm_gc_malloc_prehistory.

        * threads.c (really_launch): Release heap (to prevent deadlock).
        (create_thread): Release heap before locking thread admin mutex.

2002-12-10  Mikael Djurfeldt  <mdj@kvast.blakulla.net>

        * threads.c (scm_i_thread_invalidate_freelists): New
        function.

        * gc.c (scm_igc): Call scm_i_thread_invalidate_freelists.

        * modules.c (scm_export): Inserted a return statement.

2002-12-10  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * modules.c (scm_export): new function

        * gc-card.c: add a note about malloc()/free() overhead.

2002-12-10  Mikael Djurfeldt  <mdj@kvast.blakulla.net>

        * Makefile.am (c-tokenize.$(OBJEXT)): Don't look for c-tokenize.c
        in srcdir.

2002-12-10  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        These changes remove scm_ints_disabled (which hasn't has any
        effect in Guile for quite some time).
        
        * async.c, error.h (scm_ints_disabled): Removed.

        * gc.c (scm_gc_for_newcell), init.c (scm_init_guile_1),
        root.c (scm_internal_cwdr), gdbint.c (SCM_BEGIN_FOREIGN_BLOCK,
        SCM_END_FOREIGN_BLOCK): Don't touch scm_ints_disabled.
        (old_ints): Removed.

        * __scm.h (SCM_DEFER_INTS, SCM_ALLOW_INTS): Define as a recursive
        critical section.
        (SCM_REDEFER_INTS, SCM_ALLOW_INTS): Define as SCM_DEFER_INTS and
        SCM_ALLOW_INTS.

2002-12-09  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * threads.c (scm_mutex_lock, scm_cond_wait, scm_cond_timedwait):
        Removed accidental #if 0 around these functions.

        These changes are the start of support for preemptive
        multithreading.  Marius and I have agreed that I commit this code
        into the repository although it isn't thoroughly tested and surely
        introduces many bugs.  The bugs should only be exposed when using
        threads, though.  Signalling and error handling for threads is
        very likely broken.  Work on making the implementation cleaner and
        more efficient is needed.
        
        * __scm.h (SCM_ALLOW_INTS_ONLY): Removed.
        (SCM_NONREC_CRITICAL_SECTION_START,
        SCM_NONREC_CRITICAL_SECTION_END, SCM_REC_CRITICAL_SECTION_START,
        SCM_REC_CRITICAL_SECTION_END): New macros.
        (SCM_CRITICAL_SECTION_START/END): Defined here.

        * eval.c: Insert SOURCE_SECTION_START / SOURCE_SECTION_END around
        the three calls to scm_m_expand_body.

        * gc.h: #include "libguile/pthread-threads.h";
        (SCM_FREELIST_CREATE, SCM_FREELIST_LOC): New macros.

        * gc.c (scm_i_freelist, scm_i_freelist2): Defined to be of type
        scm_t_key;

        * gc.c, gc-freelist.c, inline.h: Use SCM_FREELIST_LOC for freelist
        access.

        * gc-freelist.c (scm_gc_init_freelist): Create freelist keys.

        * gc-freelist.c, threads.c (really_launch): Use
        SCM_FREELIST_CREATE.

        * gc-malloc.c (scm_realloc, scm_gc_register_collectable_memory):

        * gc.c (scm_i_expensive_validation_check, scm_gc,
        scm_gc_for_newcell): Put threads to sleep before doing GC-related
        heap administration so that those pieces of code are executed
        single-threaded.  We might consider rewriting these code sections
        in terms of a "call_gc_code_singly_threaded" construct instead of
        calling the pair of scm_i_thread_put_to_sleep () and
        scm_i_thread_wake_up ().  Also, we would want to have as many of
        these sections eleminated.

        * init.c (scm_init_guile_1): Call scm_threads_prehistory.

        * inline.h: #include "libguile/threads.h"

        * pthread-threads.h: Macros now conform more closely to the
        pthreads interface.  Some of them now take a second argument.

        * threads.c, threads.h: Many changes.

2002-12-09  Mikael Djurfeldt  <djurfeldt@nada.kth.se>

        * Makefile.am (version.h): Changed $^ --> $< in rule for
        version.h.
        
2002-12-08  Rob Browning  <rlb@defaultvalue.org>

        * version.h.in (SCM_MICRO_VERSION): use @--@ substitution now.
        (SCM_MINOR_VERSION): use @--@ substitution now.
        (SCM_MICRO_VERSION): use @--@ substitution now.
        (scm_effective_version): new function prototype.

        * version.c (scm_effective_version): new function, also add
        effective-version.

        * Makefile.am (schemelibdir): VERSION -> GUILE_EFFECTIVE_VERSION.
        (libpath.h): use GUILE_EFFECTIVE_VERSION to compute
        SCM_LIBRARY_DIR.
        (version.h): generate this here rather than configure.in.  This
        approach tracks source edits better (i.e. more immediately).
        Might be worth considering for other .in files too.

2002-12-02  Marius Vollmer  <mvo@zagadka.ping.de>

        Reorganized thread package selection.  A thread package now only
        implements a small set of pthread like functions and Guile
        implements the rest on top of that.  Guile's implementation is
        what the "coop-pthreads" package has been previously.  Support for
        "coop" threads has been removed until I get time to add it again.
        
        * Makefile.am (libguile_la_SOURCES): Removed iselect.c.
        (noinst_HEADERS): Removed coop-threads.c, coop-threads.h, coop.c,
        null-threads.c, coop-pthreads.c.
        (modinclude_HEADERS): Removed coop-defs.h, coop-pthreads.h.  Added
        pthread-threads.h.
        
        * validate.h (SCM_VALIDATE_THREAD): Moved to threads.h.

        * threads.h: Do not include "libguile/coop-defs.h".  Include
        "libguile/pthread-threads.h" for USE_COPT_THREADS.  Removed
        (previously deprecated) C level thread API prototypes.  They are
        now in the thread package specific headers, "null-threads.h" and
        "pthread-threads.h".
        (SCM_VALIDATE_THREAD, SCM_VALIDATE_MUTEX, SCM_VALIDATE_CONDVAR):
        New.
        (scm_threads_init): Removed.
        (SCM_CRITICAL_SECTION_START, SCM_CRITICAL_SECTION_END,
        SCM_THREAD_SWITCHING_CODE, scm_i_switch_counter,
        SCM_I_THREAD_SWITCH_COUNT): Define here.
        (scm_single_thread_p): Removed.
        (scm_call_with_new_thread): Take two args directly instead of list
        of two args.
        (scm_i_thread_data, scm_i_set_thread_data, SCM_THREAD_LOCAL_DATA,
        SCM_SET_THREAD_LOCAL_DATA): Define here.

        * threads.c: Merged with "coop-pthreads.c".

        * null-threads.h: Implement pthread-like API as a set of macros.

        * pthread-threads.h: New, implement pthread-like API by deferring
        to pthread itself.
        
        * init.c (scm_init_guile_1): Do not call scm_init_iselect, which
        has been lost in the reorganization.

2002-12-01  Mikael Djurfeldt  <mdj@linnaeus>

        The following change makes it possible to move procedure
        application dispatch outside inner loops.  The motivation was
        clean implementation of efficient replacements of R5RS primitives
        in SRFI-1.

        The semantics is clear: scm_trampoline_N returns an optimized
        version of scm_call_N (or NULL if the procedure isn't applicable
        on N args).

        Applying the optimization to map and for-each increases efficiency
        noticeably.  For example, (map abs ls) is 8 times faster than
        before.

        * eval.h (scm_t_trampoline_1, scm_t_trampoline_2): New types.

        * eval.c, eval.h (scm_trampoline_1, scm_trampoline_2): New functions.

        * eval.c (call_subr2_2, call_lsubr_2, call_closure_2): New functions;
        (map, for-each): Handle also application on two args as a special
        case; Use trampolines.

        Other changes:
        
        * sort.c (scm_cmp_function): Choose subr2less for scm_tc7_subr_2o;
        (subr2oless): Removed.
        (scm_restricted_vector_sort_x): Use scm_return_first to keep the
        vector GC protected.

        * eval.c (check_map_args): Use scm_out_of_range_pos instead of
        scm_out_of_range.

2002-11-24  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * evalext.[ch] (scm_m_undefine, undefine):  Deprecated.

2002-11-17  Mikael Djurfeldt  <mdj@linnaeus>

        * debug.c (scm_make_iloc): Added missing "return".

2002-11-17  Marius Vollmer  <mvo@zagadka.ping.de>

        * strports.c (scm_eval_string_in_module): Validate second arg to
        be a module.  Thanks to Arno Peters!

2002-11-16  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * .cvsignore: remove goops.c

2002-11-16  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * modules.c (scm_env_top_level, scm_lookup_closure_module,
        module_variable, scm_module_lookup_closure,
        scm_module_transformer, scm_sym2var, scm_module_reverse_lookup,
        scm_system_module_env_p):  Don't compare SCM values with C
        operators == or !=.  Avoid SCM_IMP predicates.  Prefer !SCM_FALSEP
        over SCM_NFALSEP.

2002-11-16  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.h (SCM_MAKE_ILOC):  New macro.

        * debug.c (scm_make_iloc):  Use SCM_MAKE_ILOC instead of computing
        the iloc bitpattern here.

2002-11-14  Mikael Djurfeldt  <mdj@linnaeus>

        * coop-pthreads.c, coop-pthreads.h: scm_internal_select should be
        part of the API, otherwise it's difficult to write Guile
        extensions using non-blocking I/O => moved #include
        "libguile/iselect.h" from coop-pthreads.c --> coop-pthreads.h.

        * coop-pthreads.c (scm_unlock_mutex): Changed s_lock_mutex -->
        s_unlock_mutex.

2002-11-10  Marius Vollmer  <mvo@zagadka.ping.de>

        * __scm.h (USE_THREADS, GUILE_ISELECT): Do not define here.  They
        are defined in configure.in.

        * threads.c: Removed SCM_API from function definitions.  SCM_API
        is only for declarations.

2002-11-07  Mikael Djurfeldt  <mdj@linnaeus>

        * coop-pthreads.h: Added support for thread specific data to the
        generic C API for the coop-pthreads case.

        * threads.c, threads.h (scm_cond_init): Undo unintentional API
        change.
        (scm_cond_broadcast): Added missing function.

2002-11-04  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * coop.c (coop_next_runnable_thread): Removed, wich should have
        happened when GUILE_ISELECT was hard-wired.

2002-11-03  Marius Vollmer  <mvo@zagadka.ping.de>

        * Makefile.am (libguile_la_SOURCES): Added threads.c
        (DOT_DOC_FILES): Added threads.doc.
        (DOT_X_FILES): Added threads.x.
        (EXTRA_libguile_la_SOURCES): Removed threads.c.
        (noinst_HEADERS): Added coop-pthreads.c.
        (modinclude_HEADERS): Added coop-pthreads.h.

        * __scm.h (USE_THREADS, GUILE_ISELECT): Define when
        SCM_DEBUG_DEPRECATED.  Removed their use thru-out Guile.

        * iselect.c: Include "_scm.h" before testing HAVE_UNISTD_H.
        Thanks to Bill Schottstaedt!

        * numbers.c (scm_integer_expt): Make 0^z == 0 for z != 0.

        * _scm.h (HAVE_RESTARTABLE_SYSCALLS): Do define even when
        SCM_COPT_THREADS is defined.
        (SCM_SYSCALL): Use EINTR-expection version when SCM_COPT_THREADS
        is defined.
        
        * coop-pthreads.c: Some harmless renamings of internal stuff.
        (create_thread): New, generalized version of
        scm_call_with_new_thread.
        (scm_call_with_new_thread): Use it.
        (scm_spawn_thread): New, use create_thread.
        
2002-11-02  Marius Vollmer  <mvo@zagadka.ping.de>

        * coop-pthreads.c, coop-pthreads.h: Redone completely, you might
        start testing it now.

        * _scm.h: Include <errno.h< so that SCM_SYSCALL is correctly
        defined when HAVE_RESTARTABLE_SYSCALLS is not defined.
        (HAVE_RESTARTABLE_SYSCALLS): Do not define when USE_COPT_THREADS
        is defined.

2002-10-27  Marius Vollmer  <mvo@zagadka.ping.de>

        * scmsigs.c (signal_cell_handlers, install_handler_data,
        scm_delq_spine_x, really_install_handler, install_handler): New
        scheme for triggering signal handlers, to simplify take_signal.
        (take_signal): Simplified, to avoid race conditions.
        (scm_sigaction_for_thread): Use new Scheme.  Validate that thread
        hasn't exited yet.
        
        * async.c (scm_async_click): Reset pending_asyncs, handle
        signal_asyncs.  Don't set cdr of a non-signal async to #f.
        (scm_i_queue_async_cell): Do not check cdr of cell for #f, queue
        always.  Set pending_asyncs.
        (scm_system_async_mark_for_thread): Check that thread has not
        exited.
        (scm_unmask_signals, decrease_block): Call scm_async_click after
        block_asyncs becomes zero.
        
        * __scm.h (SCM_ASYNC_CLICK): Check pending_asyncs instead of
        active_asyncs.

        * root.h (scm_root_state): Added pending_asyncs and signal_asyncs
        fields.
        * root.c (root_mark): Mark them.
        (make_root): Initialize them.
        
        * iselect.c, iselect.h: Replaced GUILE_ISELECT with
        USE_COOP_THREADS.
        (scm_internal_select): Define one version for USE_COOP_THREADS and
        one for USE_NULL_THREADS.
        (scm_init_iselect): Likewise.
        
        * inline.h (scm_cell, scm_double_cell): Also allow
        USE_COPT_THREADS to not protect the slot initializers.
        
        * init.c (scm_init_guile_1): Call scm_init_thread_procs.  This is
        because threads need to be initialized before the stack, but
        gsubrs such as scm_timed_condition_variable_wait can only be
        created later.

        * threads.h: Include "coop-pthreads.h" when requested.
        (scm_threads_make_mutex, scm_threads_lock_mutex,
        scm_threads_unlock_mutex, scm_threads_monitor): Removed, they were
        not implemented anyway.
        (scm_init_thread_procs, scm_try_mutex,
        scm_timed_condition_variable_wait,
        scm_broadcast_condition_variable, scm_c_thread_exited_p,
        scm_thread_exited_p): New prototypes.
        (struct timespec): Define if not already defined.
        (scm_t_mutex, scm_mutex_init, scm_mutex_lock, scm_mutex_trylock,
        scm_mutex_unlock, scm_mutex_destroy, scm_t_cond, scm_cond_init,
        scm_cond_wait, scm_cond_timedwait, scm_cond_signal,
        scm_cond_broadcast, scm_cond_destroy): Declarations moved here and
        deprecated.

        * threads.c: Include <errno.h>.  Include "coop-pthreads.c" when
        requested.
        (scm_thread_exited_p): New.
        (scm_try_mutex, scm_broadcast_condition_variable): Newly
        registered procedures.
        (scm_wait_condition_variable, scm_timed_wait_condition_variable):
        Use the latter as the procedure for "wait-condition-variable",
        thus offering a optional timeout parameter to Scheme.
        (scm_wait_condition_variable): Implement in terms of
        scm_timed_wait_condition_variable.
        (scm_mutex_init, scm_mutex_lock, scm_mutex_trylock,
        scm_mutex_unlock, scm_mutex_destroy, scm_cond_init,
        scm_cond_wait, scm_cond_timedwait, scm_cond_signal,
        scm_cond_broadcast, scm_cond_destroy): Implement in terms of
        scm_make_mutex, etc, and deprecate.
        (scm_init_threads): Do not create smobs, leave this to
        scm_threads_init.  Do not include "threads.x" file.
        (scm_init_thread_procs): New, include "threads.x" here.

        * null-threads.h (scm_null_mutex, scm_null_mutex_init,
        scm_null_mutex_lock, scm_null_mutex_unlock,
        scm_null_mutex_destroy, scm_null_condvar, scm_null_condvar_init,
        scm_null_condvar_wait, scm_null_condvar_signal,
        scm_null_condvar_destroy): Removed.
        (scm_mutex_init, scm_mutex_lock, scm_mutex_unlock, scm_cond_init,
        scm_cond_wait, scm_cond_signal, scm_cond_broadcast,
        scm_cond_destory): Do not define, they are now deprecated and
        handled by threads.{h,c}.
        
        * null-threads.c (scm_null_mutex, scm_null_cond): Define here.
        (scm_threads_init): Create smobs here, using the appropriate
        sizes.
        (block): Removed, now unused.
        (scm_c_thread_exited_p): New.
        (scm_null_mutex_init, scm_null_mutex_lock, scm_null_mutex_unlock,
        scm_null_mutex_destroy, scm_null_condvar_init,
        scm_null_condvar_wait, scm_null_condvar_signal,
        scm_null_condvar_destroy): Removed and updated users to do their
        task directly.
        (scm_try_mutex, timeval_subtract,
        scm_timed_wait_condition_variable,
        scm_broadcast_condition_variable): New.
        (scm_wait_condition_variable): Removed.

        * coop-defs.h (coop_m): Added 'level' field.
        (scm_t_mutex, scm_mutex_init, scm_mutex_lock, scm_mutex_trylock,
        scm_mutex_unlock, scm_mutex_destroy, scm_t_cond, scm_cond_init,
        scm_cond_wait, scm_cond_timedwait, scm_cond_signal,
        scm_cond_broadcast, scm_cond_destroy, struct timespec): Do not
        define.
        (coop_condition_variable_broadcast): New.

        * coop-threads.c (scm_threads_init): Create smobs here, using the
        appropriate sizes.
        (scm_c_thread_exited_p, scm_try_mutex,
        scm_timed_wait_condition_variable,
        scm_broadcast_condition_variable): New.
        (scm_wait_condition_variable): Removed.

        * coop.c (coop_new_mutex_init): Initialize level.
        (coop_mutex_trylock, coop_mutex_lock, coop_mutex_unlock): maintain
        level.
        (coop_condition_variable_signal): Renamed to
        coop_condition_variable_broadcast and reimplemented in terms of
        that.  Thus...
        (coop_condition_variable_broadcast): New.

        * goops.c (hell_mutex): Reimplemented using scm_make_mutex, etc.

        * coop-pthreads.h, coop-pthreads.c: New, but unfinished.
        
2002-10-21  Marius Vollmer  <mvo@zagadka.ping.de>

        * null-threads.c: Include <time.h>.  Also, use <...> for inclusion
        of system headers.

        * async.c, goops.h, modules.h, validate.h (SCM_MAKE_VALIDATE_MSG):
        New.  Use it instead of SCM_MAKE_VALIDATE in lots of places to
        give better error messages.  Thanks to Bill Schottstaedt!

2002-10-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * evalext.h, evalext.c (scm_definedp, scm_defined_p):  Renamed
        scm_definedp to scm_defined_p and deprecated scm_definedp.

2002-10-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * async.h, async.c (scm_system_async):  Fixed deprecation to work
        correctly when deprecated features are excluded.

2002-10-16  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * async.c (scm_system_async_mark_for_thread): Validate thread
        argument.

        * coop-threads.c (scm_i_thread_root): Do not validate argument.

        * feature.c (scm_init_feature): Don't add 'threads' for
        USE_NULL_THREADS.

        * inline.h (scm_cell, scm_double_cell): Also allow
        USE_NULL_THREADS to not protect the slot initializers.

        * scmsigs.c (scm_sigaction_for_thread): It's "USE_THREADS" not
        "USE_THREAD".

        * Makefile.am (noinst_HEADERS): Added null-threads.c.
        (modinclude_HEADERS): Added null-threads.h.

        * threads.h: Include null-threads.h when !USE_COOP_THREADS.
        * threads.c: Include null-threads.c when !USE_COOP_THREADS.
        (scm_init_threads): Use generic type names scm_t_mutex and
        scm_t_cond instead of coop_m and coop_c.

        * null-threads.c, null-threads.h: New files.

2002-10-15  Marius Vollmer  <mvo@zagadka.ping.de>

        * Makefile.am: Replaced "$<" in non-pattern rules with its value.
        This is to support makes that know about "$<" only in pattern
        rules, like Sun's make.

2002-10-13  Marius Vollmer  <mvo@zagadka.ping.de>

        * Makefile.am (libpath.h): Fixed typo in top_srcdir_absolute
        substitution.  Thanks to David Allouche!

2002-10-13  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * evalext.h:  Replaced SCM_DEBUG_DEPRECATED with
        !SCM_ENABLE_DEPRECATED.

2002-10-11  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * async.c (scm_system_async_mark_for_thread): Only call
        scm_i_thread_root when USE_THREADS is defined.  Use scm_root
        otherwise.

        * scmsigs.c (take_signal): Only call scm_i_thread_root when
        USE_THREADS is defined.  Use scm_root otherwise.
        (scm_sigaction_for_thread): Ignore THREAD argument when
        USE_THREADS is not defined.  Also, move THREAD argument defaulting
        out of HAVE_SIGACTION section, which was a bug.

2002-10-10  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * scmsigs.c (scm_sigaction_for_thread): Store original handler in
        signal_handlers, not the closure that is used as the async.
        The closure is stored in signal_handler_cells, as previously.
        
2002-10-10  Marius Vollmer  <mvo@zagadka.ping.de>

        * root.h (scm_root_state): Added 'block_async' slot.
        (scm_active_asyncs): Removed abbrev.
        * root.c (scm_make_root): Initialize 'block_asyncs' slot.

        * __scm.h (SCM_ASYNC_TICK): Do without the scm_active_asyncs
        abbrev.

        * async.h (scm_call_with_blocked_asyncs,
        scm_call_with_unblocked_asyncs, scm_c_call_with_blocked_asyncs,
        scm_c_call_with_unblocked_asyncs): New prototypes.
        (scm_mask_signals, scm_unmask_signals): Deprecated.
        (scm_mask_ints): Turned into a macro.
        * async.c (scm_mask_ints): Removed.
        (scm_run_asyncs): Do not set scm_mask_ints while running an async.
        this should not be necessary.
        (scm_async_click): Test block_asyncs instead of scm_mask_ints.
        (scm_mask_signals, scm_unmask_signals): Deprecated.  Emit
        deprecation warning and check for errornous use.  Set block_asyncs
        instead of scm_mask_ints.
        (increase_block, decrease_block, scm_call_with_blocked_asyncs,
        scm_call_with_unblocked_asyncs, scm_c_call_with_blocked_asyncs,
        scm_c_call_with_unblocked_asyncs): New.
        
        * script.c (scm_compile_shell_switches): Do not set scm_mask_ints.
        Asyncs are enabled by default.

2002-10-09  Neil Jerram  <neil@ossau.uklinux.net>

        * vports.c (scm_make_soft_port): Allow vector argument to carry a
        6th element: an input waiting thunk.
        (sf_input_waiting): New.

2002-10-05  Marius Vollmer  <mvo@zagadka.ping.de>

        * root.c (root_mark): Mark active_asyncs slot.

        * async.c (scm_async_click): Set the cdr of a executed handler
        cell to SCM_BOOL_F, not SCM_EOL.
        (scm_i_queue_async_cell): Queue the cell at the end of the list,
        and only if the handler procedure is not already present.
        (scm_system_async_mark_for_thread): Initialize cdr of handler cell
        with SCM_BOOL_F.
        * scmsigs.c (scm_sigaction_for_thread): Likewise.
        
2002-10-04  Rob Browning  <rlb@defaultvalue.org>

        * guile.c (main): switch to scm_lt_dlset_preloaded_symbols;

        * dynl.c (sysdep_dynl_link): switch to scm_lt_dlhandle,
        scm_lt_dlopenext, and scm_lt_dlerror.
        (sysdep_dynl_unlink): switch to scm_lt_dlhandle, scm_lt_dlclose,
        and scm_lt_dlerror.
        (sysdep_dynl_func): switch to scm_lt_dlhandle, scm_lt_dlsym,
        and scm_lt_dlerror.
        (sysdep_dynl_init): switch to scm_lt_dlinit();

        * Makefile.am (libguile_la_LIBADD): switch to use
        libguile-ltdl.la.

        * numbers.c (scm_integer_expt): (expt 0 1) should be 1.

2002-10-04  Marius Vollmer  <mvo@zagadka.ping.de>

        * scmsigs.h (scm_sigaction_for_thread): New prototype.
        * scmsigs.c (got_signal): Removed.
        (signal_handler_cells, signal_handler_threads): New.
        (take_signal): Queue the cell of the signal for the specified
        thread.  Reset the signal handler on systems that don't have
        sigaction.
        (sys_deliver_signals): Removed.
        (close_1): New.
        (scm_sigaction_for_thread): Renamed from scm_sigaction and
        extended to also set the thread of a signal and allocate a cell
        for it.  Keep the Scheme name "sigaction".  Check that signum is
        within range.  Also, use SCM_VECTOR_REF instead of SCM_VELTS.
        (scm_sigaction): Implement in terms of scm_sigaction_for_thread.
        (scm_init_scmsigs): Allocate signal_handler_cells and
        signal_handler_threads vectors.

        * async.c: Removed GUILE_OLD_ASYNC_CLICK code.  Reorganized so
        that system asnycs and user asyncs are separated.  Reimplemented
        system asyncs to work per-thread.

        * gc.c (scm_init_gc): Do not use scm_system_async.

        * async.h (scm_asyncs_pending, scm_set_tick_rate,
        scm_set_switch_rate, scm_system_async_mark_from_signal_handler):
        Removed prototypes.
        (scm_i_queue_async_cell): New.
        
        * __scm.h (scm_asyncs_pending_p): Removed.
        (SCM_ASYNC_CLICK): Check scm_active_asyncs instead of
        scm_asyncs_pending_p.

        * async.h (scm_system_async_mark_for_thread): New prototype.

        * __scm.h: Removed GUILE_OLD_ASYNC_CLICK code.

        * root.h (scm_root_state): Added new "active_asyncs" slot.
        * root.c (scm_make_root): Initialize it to SCM_EOL.

        * coop-defs.h (coop_t): Added new "handle" slot.
        * coop-threads.c (all_threads, scm_current_thread,
        scm_all_threads, scm_i_thread_root): New.
        (scm_threads_init): Add main thread to all_threads.
        (scheme_launch_thread): Remove thread from all_threads when it
        terminates.
        (scm_call_with_new_thread): Initialize handle slot of coop_t
        structure and add new thread to all_threads.
        (scm_spawn_thread): Likewise.

        * threads.h (scm_current_thread, scm_all_threads): New prototypes.
        * threads.c (scm_current_thread, scm_all_threads): Register as
        primitives.

        * dynl.c: Use scm_lt_ prefix for libltdl functions.

2002-09-29  Neil Jerram  <neil@ossau.uklinux.net>

        * script.c (scm_compile_shell_switches): Fix bad spelling of
        `explicitly' in comment.

2002-09-28  Neil Jerram  <neil@ossau.uklinux.net>

        * posix.c (scm_geteuid, scm_getegid, scm_seteuid, scm_setegid):
        Refer to provided? in doc string rather than deprecated feature?.

2002-09-24  Gary Houston  <ghouston@arglist.com>

        * inline.h (scm_double_cell): prevent reordering of statements
        with any following code (for GCC 3 strict-aliasing).
        * numbers.c (scm_make_real), num2float.i.c (FLOAT2NUM): removed
        the earlier version of the reordering prevention.

2002-09-19  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * inline.h (scm_double_cell): move SET_GCMARK set out of if body. 

2002-09-09  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * gc-malloc.c (scm_gc_register_collectable_memory): more overflow
        protection.

2002-09-08  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * inline.h: include stdio.h

        * smob.c (free_print): abort if scm_debug_cell_accesses_p is set

2002-09-05  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * gc-segment.c (scm_i_make_initial_segment): check user settings
        for sanity.

        * gc-malloc.c (scm_gc_init_malloc): check user settings for
        sanity.

        * gc-freelist.c (scm_init_freelist): check user settings for sanity. 

        * struct.h: change scm_structs_to_free to scm_i_structs_to_free

        * gc-malloc.c (scm_gc_register_collectable_memory): use floats;
        these won't ever wrap around with high memory usage. Thanks to
        Sven Hartrumpf for finding this.

        * gc-freelist.c: include <stdio.h>

        * gc-malloc.c: add DEBUGINFO for mtrigger GCs.

2002-09-01  Marius Vollmer  <mvo@zagadka.ping.de>

        * vectors.h (SCM_VECTOR_REF): New.

        * snarf.h (SCM_DEFINE_PUBLIC): New.

2002-08-30  Marius Vollmer  <mvo@zagadka.ping.de>

        * socket.c (scm_addr_vector): Added size of address to arguments.
        Use it to avoid accessing a non-existent path in a sockaddr_un.
        Changed all callers.

2002-08-29  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * gc.h: remove DOUBLECELL card flags.

        * gc-malloc.c (scm_calloc): try to use calloc() before calling
        scm_realloc().

        * gc-segment.c (scm_i_initialize_heap_segment_data): remove card
        init loop; handle this from scm_init_card_freelist()

        * gc-card.c (scm_init_card_freelist): init bit vector here.

        * numbers.c (scm_make_real): prevent reordering of statements
        num2float.i.c (FLOAT2NUM): idem

2002-08-27  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * eval.h: prepend libguile/ to include path

2002-08-26  Marius Vollmer  <mvo@zagadka.ping.de>

        * script.c (scm_compile_shell_switches): Added "2002" to Copyright
        years.  Thanks to Martin Grabmüller!

2002-08-25  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * gc-segment.c (scm_i_get_new_heap_segment): use float in stead of
        unsigned numbers for computing minimum heap increment. This
        prevents weird results when a a negative minimum increment is
        computed.

2002-08-24  Marius Vollmer  <mvo@zagadka.ping.de>

        * gc_os_dep.c: When we have __libc_stack_end, use that directly
        instead of the old tricks.

        * guile-snarf.in: Do not expect the input file to be the first
        argument after the optional "-o" option, just pass everything to
        the pre-processor without extracting the input file name.

2002-08-23  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * gc-segment.c (scm_i_get_new_heap_segment): Oops. We want segment
        length *at* least SCM_MIN_HEAP_SEG_SIZE, not at most.  

2002-08-22  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * gc.h, gc.c: make scm_cells_allocated unsigned again. Thanks to
        Bill Schottstaedt for the bug report

2002-08-20  Marius Vollmer  <mvo@zagadka.ping.de>

        * print.c (scm_iprin1): Print primitives generics always as
        "primitive-generic" even when they have no primitive methods yet.

2002-08-17  Gary Houston  <ghouston@arglist.com>

        * coop.c (coop_create): removed bogus 2nd argument in scm_malloc
        call.

2002-08-17  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * ports.c (scm_add_to_port_table): small bugfix.

        * mallocs.c (scm_malloc_obj): use scm_gc_malloc in stead of
        malloc.

        * gc-segment.c (scm_i_get_new_heap_segment): remove cluster cruft:
        only use SCM_MIN_HEAP_SEG_SIZE.

        * ports.c (scm_add_to_port_table): add backwards compatibility
        function

        * ports.h: use scm_i_ prefix for port table and port table size.
        
2002-08-15  Mikael Djurfeldt  <mdj@linnaeus>

        * vports.c (scm_make_soft_port): Initialize pt variable.

2002-08-13  Marius Vollmer  <mvo@zagadka.ping.de>

        * strports.h (scm_c_eval_string_in_module,
        scm_eval_string_in_module): New prototypes.
        * strports.c (scm_eval_string_in_module): New, but use
        "eval-string" as the Scheme name and make second parameter
        optional.
        (scm_eval_string): Implement using scm_eval_string_in_module.
        (scm_c_eval_string_in_module): New.
        Thanks to Ralf Mattes for the suggestion!
        
2002-08-09  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * gc-card.c ("sweep_card"): remove SCM_MISC_ERROR messages: print
        message and abort.
        
        * gc-mark.c ("scm_gc_mark_dependencies"): idem.

        * ports.c ("scm_new_port_table_entry"): return a boxed SCM in
        stead of scm_t_port*. The function now takes a tag argument.

2002-08-08  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * gc.h: add scm_debug_cells_gc_interval to public interface

        * gc-card.c ("sweep_card"): set scm_gc_running while sweeping.

        * gc.c (scm_i_expensive_validation_check): separate expensive
        validation checks from cheap ones.

2002-08-06  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * read.c (scm_input_error): new function: give meaningful error
        messages, and throw read-error

        * gc-malloc.c (scm_calloc): add scm_calloc.

2002-08-05  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * tags.h: remove GC bits documentation from the tags table. 

        * read.c (INPUT_ERROR): Prepare for file:line:column error
        messages for errors in scm_lreadr() and friends.

2002-08-04  Han-Wen Nienhuys  <hanwen@cs.uu.nl>

        * gc-malloc.c (scm_malloc): use scm_realloc() (simplifies
        implementation). 
        (scm_gc_calloc): new function

2002-08-04  Han-Wen Nienhuys <hanwen@cs.uu.nl>

        * ports.c (scm_new_port_table_entry): init port entry to 0
        completely.
        
        * ports.c (scm_new_port_table_entry): change function from
        scm_add_to_port_table. This prevents cells with null-pointers from
        being exposed to GC.

        * vports.c (scm_make_soft_port) strports.c (scm_mkstrport),
        fports.c (scm_fdes_to_port): Use scm_new_port_table_entry().

        * gc.c (scm_gc_stats): add cell-yield and malloc-yield statistic
        to gc-stats.

        * numbers.c (big2str): return "0" for 0 iso. ""

        * gc-segment.c, gc-malloc.c gc-mark.c, gc-freelist.c, gc-card.c,
        private-gc.h: new file

        * gc.c: completely revised and cleaned up the GC. It now uses lazy
        sweeping. More documentation in workbook/newgc.text

2002-07-25  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * random.c (rstate_free): Return zero.

2002-07-24  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * environments.c (remove_key_from_alist):  Removed.

        (obarray_remove):  Simplified.

2002-07-24  Stefan Jahn  <stefan@lkcc.org>

        * continuations.h: ia64: Include <signal.h> before 
        <sys/ucontext.h>.

2002-07-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * modules.c (scm_sym2var):  Don't compare SCM values with ==.

2002-07-21  Han-Wen Nienhuys <hanwen@cs.uu.nl>

        * goops.c (scm_compute_applicable_methods): use
        scm_remember_upto_here_1 iso scm_remember_upto_here

        * macros.c: include deprecation.h

        * vectors.c (scm_vector_move_right_x): remove side effect in
        macro arg.
        (scm_vector_move_left_x): idem.

        * net_db.c, posix.c, socket.c: variable naming: change ans to
        result.

        * sort.c (scm_merge_vector_x): accept vector as argument
        iso. SCM*. This is needed for full GC correctness.

        * gc.h: undo previous undocumented changes related to #ifdef
        GENGC.

2002-07-20  Han-Wen Nienhuys <hanwen@cs.uu.nl>

        * *.c: add space after commas everywhere.

        * *.c: use SCM_VECTOR_SET everywhere, where a vector is written.
        Document cases where SCM_WRITABLE_VELTS() is used.
        
        * vectors.h (SCM_VELTS): prepare for write barrier, and let
        SCM_VELTS() return a const pointer
        (SCM_VECTOR_SET): add macro.

2002-07-15  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_CEVAL), macros.c (macro_print, scm_makmacro,
        scm_sym_macro, scm_macro_type), macros.h (scm_makmacro):
        Deprecated the special kind of built-in dynamic syntax transformer
        that was inaccurately named "macro".  Note:  The built-in syntax
        transformers that are named "mmacro" or "memoizing-macro" still
        exist, and it is these which come much closer to what one would
        call a macro.

2002-07-13  Neil Jerram  <neil@ossau.uklinux.net>

        * eval.c (unmemocopy): Fix for
        1001-local-eval-error-backtrace-segfaults (unmemoization crash
        with internal definitions and local-eval).

2002-07-12  Gary Houston  <ghouston@arglist.com>

        * dynl.c: Don't define stub procedures if DYNAMIC_LINKING is not
        defined.  They don't do anything useful, especially since the
        only case where DYNAMIC_LINKING is undefined seems to be
        when --with-modules=no is given to configure, which is basically
        requesting that the "dynamic linking module" be omitted.

        * Makefile.am (libguile_la_SOURCES): move dynl.c from
        libguile_la_SOURCES to EXTRA_libguile_la_SOURCES.

        * extensions.c (load_extension): check DYNAMIC_LINKING for
        scm_dynamic_call.
        * init.c (scm_init_guile_1): check DYNAMIC_LINKING for
        scm_init_dynamic_linking.

2002-07-10  Marius Vollmer  <mvo@zagadka.ping.de>

        * guile.c, iselect.h, net_db.c, posix.c, socket.c: No need to
        check for Cygwin when including <winsock2.h>, this is already
        check for by configure.  Thus, revert change from 2002-07-07.

2002-07-10  Gary Houston  <ghouston@arglist.com>

        * eq.c: include <string.h>
        * dynl.c: docstring editing.

2002-07-09  Gary Houston  <ghouston@arglist.com>

        * dynl.c (scm_dynamic_call): docstring editing.

2002-07-08  Rob Browning  <rlb@defaultvalue.org>

        * gc_os_dep.c: HURD fixes.

2002-07-07  Marius Vollmer  <mvo@zagadka.ping.de>

        Crosscompiling and Cygwin fixes by Jan Nieuwenhuizen.  Thanks!

        * Makefile.am: Override default rule for c-tokenize.$(OBJECT);
        this should be compiled for BUILD host.
        Override default rule for
        guile_filter_doc_snarfage$(EEXECT); this should run on BUILD host.
        Add missing $(EXEEXT) to guile_filter_doc_snarfage invocation.
        (snarf2checkedtexi): Use GUILE_FOR_BUILD instead of preinstguile.

        * guile.c, iselect.h, net_db.c, posix.c, socket.c: Do not include
        <winsock2.h> on Cygwin even when we have it.

2002-07-01  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h (SCM_CAUTIOUS), eval.c (scm_eval_args, deval_args,
        SCM_CEVAL):  Removed compile time option SCM_CAUTIOUS to clean up
        the code.  Full number of arguments checking of closures is
        mandatory now.  However, the option to disable the checking has
        most probably not been used anyway.

2002-06-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h (SCM_RECKLESS), backtrace.c (SCM_ASSERT), debug.c
        (scm_debug_options), eval.c (scm_lookupcar, scm_lookupcar1,
        scm_badargsp, SCM_CEVAL, SCM_APPLY, scm_map, scm_for_each),
        feature.c (scm_init_feature), gsubr.c (scm_gsubr_apply), numbers.c
        (scm_logand, scm_logior, scm_logxor, scm_i_dbl2big), srcprop.c
        (scm_source_properties, scm_set_source_properties_x,
        scm_source_property):  Removed compile time option SCM_RECKLESS to
        clean up the code.  Full number of arguments checking of closures
        is mandatory now.  However, the option to disable the checking has
        most probably not been used anyway.

        * srcprop.c (scm_source_properties, scm_set_source_properties_x,
        scm_source_property): Use !SCM_CONSP instead of SCM_NCONSP.

2002-06-30  Gary Houston  <ghouston@arglist.com>

        * dynl.c: Removed all SCM_DEFER_INTS/SCM_ALLOW_INTS, which won't
        do anything useful.  Added a comment about need for a mutex if
        pre-emptive threading is supported.

        * posix.c (scm_convert_exec_args), dynl.c
        (scm_make_argv_from_stringlist): static procs: 1) renamed both to
        allocate_string_pointers.  2) simplified: don't reallocate the
        strings, just make an array of pointers 3) avoid memory leaks on
        error 4) let the procedure report errors in its own name.
        Consequences: 1) the procedures now assume that SCM strings are
        nul-terminated, which should always be the case.  2) Since strings
        are not reallocated, it's now possible for strings passed to
        dynamic-args-call to be mutated.

2002-06-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h, eval.c, eval.h:  Removed compile time option
        MEMOIZE_LOCALS to clean up the code.  Now, caching of local
        variable positions during memoization is mandatory.  However, the
        option to disable the caching has most probably not been used
        anyway.

2002-06-18  Marius Vollmer  <mvo@zagadka.ping.de>

        * print.c (scm_simple_format): Print missing part of format before
        ~% control.  Thanks to Daniel Skarda!

2002-06-01  Marius Vollmer  <mvo@zagadka.ping.de>

        * mkstemp.c: Added exception notice to license statement.

2002-05-22  Marius Vollmer  <mvo@zagadka.ping.de>

        * numbers.c (mem2ureal): When returning an inexact zero, make sure
        it is represented as a floating point value so that we can change
        its sign.

        From John W. Eaton  <jwe@bevo.che.wisc.edu>

        * numbers.c (idbl2str): Don't omit sign when printing negative zero.

2002-05-14  Thien-Thi Nguyen  <ttn@giblet.glug.org>

        * gc_os_dep.c: For I386/OPENBSD, allow for `__i386__'
        in addition to `i386'.  Thanks to Dale P. Smith.

2002-05-08  Marius Vollmer  <mvo@zagadka.ping.de>

        * eq.c (real_eqv): New.
        (scm_eqv_p): Use it when comparing reals and complexes.

        * numbers.c: Include <string.h>, for strncmp.
        (mem2complex): Do not create negative NaNs.
        (scm_leq_p, scm_geq_p): Explicitely return #f when comparing a
        NaN.
        (scm_inexact_to_exact): Signal error when converting a NaN.

2002-05-06  Marius Vollmer  <mvo@zagadka.ping.de>

        * posix.c (scm_putenv): Handle removing variables explicitely by
        calling unsetenv.

        From John W. Eaton.

        * numbers.h: Conditionally include floatingpoint.h, ieeefp.h, and
        nan.h.  Provide declarations for scm_inf_p, scm_nan_p, scn_inf,
        and scm_nan.
        * numbers.c: [SCO && ! HAVE_ISNAN] (isnan): New function.
        [SCO && ! HAVE_ISINF] (isinf): New function.
        (xisinf, xisnan): New functions.
        (IS_INF): Delete.
        (isfinite): Define in terms of xisinf.
        (scm_inf_p, scm_nan_p): New functions.
        (guile_Inf, guile_NaN): New file-scope vars.
        (guile_ieee_init): New function.
        (scm_inf, scm_nan): New functions.
        (idbl2str): Handle Inf and NaN. Remove funny label and
        corresponding gotos.
        (ALLOW_DIVIDE_BY_ZERO): New macro.
        (scm_divide): Allow division by zero to occur if
        ALLOW_DIVIDE_BY_ZERO is defined.
        Handle bignums and ints as special cases.

        Additional stuff by me:

        numbers.c (mem2ureal): Recognize "inf.0" and "nan.xxx".
        (scm_even_p, scm_odd_p): Treat infinity as even and odd.
        (iflo2str): Don't output a '+' for negative numbers or for Inf and
        NaN.  They will provide their own sign.
        (scm_divide): Only allow divides by inexact zeros.  Dividing by
        exact zeros still signals an errors.

2002-04-22  Thien-Thi Nguyen  <ttn@giblet.glug.org>

        * goops.h (scm_slot_exists_p): Rename from scm_slots_exists_p.
        * goops.c (scm_slot_exists_p): Rename from scm_slots_exists_p.
        (scm_slot_exists_p): Rename from scm_slots_exists_p.
        Thanks to Andreas Rottmann.

2002-04-20  Gary Houston  <ghouston@arglist.com>

        * removal of unused fields in root state (thanks to Christopher
        Cramer for pointing out the disuse.)
        * root.h (scm_root_state): removed def_inp, def_outp, def_errp.
        (scm_def_inp, scm_def_outp, scm_def_errp): removed.

        * root.c (root_mark): don't mark them.
        (scm_make_root): don't set them to #f.
        * init.c (scm_init_standard_ports): don't initialise with the
        default ports.

2002-04-17  Marius Vollmer  <mvo@zagadka.ping.de>

        * Makefile.am (EXTRA_DIST): Added cpp_err_symbols.c and
        cpp_sig_symbols.c.

2002-04-16  Marius Vollmer  <mvo@zagadka.ping.de>

        * guile-snarf.in: Do not clean input file.  This would write to
        the $(srcdir) during a VPATH build, which is not allowed.  It also
        isn't needed since it only works when an output filename has been
        specified and in that case we don't need to clean the input file
        because the output file will already exist.

2002-03-31  Marius Vollmer  <mvo@zagadka.ping.de>

        * guile-snarf: Install the trap for removing $cleanfile only when
        the value of $cleanfile is actually known.

2002-04-10  Rob Browning  <rlb@defaultvalue.org>

        * .cvsignore: add versiondat.h and *.c.clean.c.

2002-03-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * srcprop.[ch] (scm_c_source_property_breakpoint_p):  New
        function, replaces macro SRCBRKP.

        (SRCBRKP):  Deprecated.

        * eval.c (SCM_CEVAL): Replaced use of SRCBRKP by call to
        scm_c_source_property_breakpoint_p.  Removed some use of arg1 as
        temporary variable.

2002-03-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * debug.h, eval.c: Deprecated CHECK_ENTRY, CHECK_APPLY and
        CHECK_EXIT and removed all references to them.

2002-03-24  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * debug.h (scm_ready_p, debug_print): Removed declarations.

        * eval.c (EVALCELLCAR): Removed.

        (SCM_CEVAL): Eliminated label loopnoap.  Removed side-effecting
        operation from condition.

2002-03-24  Marius Vollmer  <mvo@zagadka.ping.de>

        * guile-snarf.in: When the output filename is "-", write to
        stdout.  When no "-o" option is given, use "-" as the output
        filename (i.e., stdout).  Only 'clean' the inputfile or remove the
        output file on error when the output file name is not "-".  Define
        the preprocessor macro SCM_MAGIC_SNARFER while snarfing.

        * Makefile.am (.c.x): Pass "-o $@" to guile-snarf.

2002-03-23  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_CEVAL, SCM_APPLY): Eliminated labels wrongnumargs
        and the corresponding goto statements.  Removed redundant code.

2002-03-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_CEVAL): Minimized scope of variable arg2.
        Eliminated redundant SCM_IMP check.  Exlined call to EVALCAR.
        Re-enabled handing of rpsubrs and asubrs.

2002-03-20  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SIDEVAL): Removed.

        (SCM_CEVAL): Minimized scope of variable orig_sym.  Eliminated
        goto-labels cdrxnoap, cdrxbegin and nontoplevel_cdrxnoap.  Changed
        argument checking order for set! to locals, variables and symbols.
        Improvements to control structure.  Removed some uses of arg1 and
        arg2 as temporary variables.

2002-03-15  Thien-Thi Nguyen  <ttn@giblet.glug.org>

        * guile-snarf.in: Remove "--compat=1.4" support.
        Add "-d" and "-D" support.

        (deprecated_list): New var.
        (compat_mode_clean_xxx): Delete.
        (grep_deprecated): New func.
        ("main"): If "-d" or "-D", call `grep_deprecated'.

2002-03-15  Neil Jerram  <neil@ossau.uklinux.net>

        * hooks.h: Change scm_t_c_hookype_t everywhere to
        scm_t_c_hook_type.

        Docstring fixes:

        * strings.c (scm_string_p): Change unnecessary `iff' to `if'.

        * ports.c (scm_sys_make_void_port): Use `@file'.

        * numbers.c (scm_number_p, scm_real_p): Use `otherwise' rather
        than `else'.

        * macros.c (scm_makmacro): Don't say that the form replaces its
        source, because it doesn't.
        (scm_makmmacro): Clarify difference between this and scm_makmacro.

        * backtrace.c (scm_display_error), filesys.c (scm_umask,
        scm_select, scm_basename), goops.c (scm_method_generic_function),
        numbers.c (scm_integer_length), posix.c (scm_getgroups, scm_execl,
        scm_setlocale, scm_flock), socket.c (scm_shutdown): Correct
        spelling mistakes.

        * debug.c (scm_debug_options), eval.c
        (scm_eval_options_interface), read.c (scm_read_options): Change
        incorrect @var in docstring to @code.

2002-03-14  Marius Vollmer  <mvo@zagadka.ping.de>

        * unif.c (singp): Use SCM_REALP instead of SCM_SLOPPY_REALP.

        * snarf.h (SCM_SNARF_INIT): Add "^:^" after code so that
        guile-snarf can remove trailing non-init code.

        * guile-snarf.in (modern_snarf): Remove everything following and
        including "^:^" from the output.

2002-03-14  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_CEVAL), srcprop.h (SRCBRKP): Eliminated union 't'.

        * eval.c (SCM_CEVAL): Exlined call to EVALCAR.

2002-03-13  Thien-Thi Nguyen  <ttn@giblet.glug.org>

        * guile-snarf.in: Update copyright.
        Rewrite to internalize error handling.
        Add "--compat=1.4" handling.
        Add commentary.

        * Makefile.am (libpath.h): Use @top_srcdir_absolute@.
        (snarfcppopts): New var.
        (.c.x): Use $(snarfcppopts). Rework guile-snarf usage.
        (.c.doc): Use $(snarfcppopts).

        * alist.c, arbiters.c, async.c, backtrace.c, boolean.c, chars.c,
        continuations.c, debug-malloc.c, debug.c, deprecation.c, dynl.c,
        dynwind.c, environments.c, eq.c, error.c, eval.c, evalext.c,
        extensions.c, feature.c, filesys.c, fluids.c, fports.c, gc.c,
        goops.c, gsubr.c, guardians.c, hash.c, hashtab.c, hooks.c,
        ioext.c, iselect.c, keywords.c, lang.c, list.c, load.c, macros.c,
        modules.c, net_db.c, numbers.c, objects.c, objprop.c, options.c,
        pairs.c, ports.c, posix.c, print.c, procprop.c, procs.c,
        properties.c, ramap.c, random.c, rdelim.c, read.c, regex-posix.c,
        root.c, rw.c, scmsigs.c, script.c, simpos.c, socket.c, sort.c,
        srcprop.c, stackchk.c, stacks.c, stime.c, strings.c, strop.c,
        strorder.c, strports.c, struct.c, symbols.c, threads.c, throw.c,
        unif.c, values.c, variable.c, vectors.c, version.c, vports.c,
        weaks.c: Retire inclusion guard macro SCM_MAGIC_SNARFER.

2002-03-13  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_CEVAL): Got rid of the last reference to t.lloc.
        The next step will be to remove the union 't' and simplify the
        code of SCM_CEVAL that way.

2002-03-12  Neil Jerram  <neil@ossau.uklinux.net>

        * iselect.c (collisionp, gnfds, greadfds, gwritefds, gexceptfds,
        rreadfds, rwritefds, rexceptfds): Made static.

        * gc.c (terminating), fports.c (terminating): Renamed
        scm_i_terminating.

2002-03-11  Marius Vollmer  <mvo@zagadka.ping.de>

        * numbers.c (scm_divide): Adapt code from libstdc++/f2c to void
        potential overflow problems.  Thanks to John W Eaton!

        * strop.c (string_capitalize_x): Treat characters as unsigned so
        that 8-bit chars work.  Thanks to David Pirotte!

2002-03-10  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_CEVAL): Cleaned up the handling of 'slot-ref',
        'slot-set!' and 'nil-cond'.  Removed some uses of t.arg1, arg2 and
        proc as temporary variables.  Introduced temporary variables with
        hopefully descriptive names for clarification.  Replaced SCM_N?IMP
        by a more explicit predicate in some places.

2002-03-09  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_CEVAL): Cleaned up the handling of #@dispatch.
        Added lots of comments regarding the implementation of #@dispatch.
        Changed intra-procedure communication to use t.arg1 instead of
        arg2.  Removed some uses of t.arg1, t.lloc and proc as temporary
        variables.  Introduced temporary variables with hopefully
        descriptive names for clarification.  Replaced SCM_N?IMP by a more
        explicit predicate in some places.  Use SCM_INSTANCE_HASH instead
        of computing the expression explicitly.  Eliminate now unused
        label nontoplevel_cdrxbegin.

        * goops.h (SCM_INSTANCE_HASH): New macro.

        * objects.h (SCM_CMETHOD_FORMALS, SCM_CMETHOD_BODY): New macros.

2002-03-08  Thien-Thi Nguyen  <ttn@giblet.glug.org>

        * Makefile.am (bin_SCRIPTS): Revive this decl, w/ initial element
        "guile-snarf" moved back from `noinst_SCRIPTS'.

2002-03-08  Neil Jerram  <neil@ossau.uklinux.net>

        * srcprop.c (scm_set_source_property_x): If SRCPROPS obj already
        exists when adding a source property other than those that are
        handled explicitly, add the new property to the SRCPROPS obj's
        plist.

        * debug.h (SCM_MAX_FRAME_SIZE): Remove incorrect comment about use
        of SCM_MAX_FRAME_SIZE as a bit mask; it isn't used like this.

        * eval.c (SCM_CEVAL): Don't store scm_debug_eframe_size in
        debug.status.  It isn't needed, and it can overflow the bits
        reserved for it (which may lead to a segv or a GC abort).

2002-03-02  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_CEVAL): Cleaned up the handling of 'apply'.  Removed
        side-effecting operations from conditions and macro calls.
        Replaced SCM_N?IMP by a more explicit predicate in some places.
        Minimized the scope of some variables.

2002-03-02  Stefan Jahn  <stefan@lkcc.org>

        * convert.i.c: Fixed int <-> long conversions which would have
        failed if their sizes were different.

2002-03-02  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_CEVAL): Cleaned up the handling of 'if', 'let',
        'letrec' and 'set*': Removed some uses of t.arg1, t.lloc and proc
        as temporary variables.  Removed side-effecting operations from
        conditions and macro calls.  Introduced temporary variables with
        hopefully descriptive names for clarification.  Replaced SCM_N?IMP
        by a more explicit predicate in some places.  Removed code that
        was conditionally compiled if SICP was defined - which it never
        is.

2002-03-02  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_CEVAL): Cleaned up the handling of 'cons' and 'do':
        Removed some uses of t.arg1 and proc as temporary variables.
        Removed side-effecting operations from conditions and macro calls.
        Introduced temporary variables with hopefully descriptive names
        for clarification.  Replaced SCM_N?IMP by a more explicit
        predicate in some places.

2002-03-02  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_badargsp, SCM_CEVAL): Replaced SCM_N?IMP by a more
        explicit predicate in some places.

        (CHECK_EQVISH): Removed.

        (SCM_CEVAL): Removed some uses of t.arg1 and proc as temporary
        variables.  Removed side-effecting operations from conditions and
        macro calls.  Introduced temporary variables for clarification.
        Sorted if-else-if check for the type of the last form in a list by
        frequency.  Avoided some unnecessary tail-recursion calls.

2002-03-01  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (SCM_HEAP_SEG_SIZE, CELL_UP, CELL_DN, NEXT_DATA_CELL,
        init_heap_seg, alloc_some_heap), gc.h (struct scm_cell, struct
        scm_t_cell, SCM_CELLPTR, SCM_GC_CARD_SIZE,
        SCM_GC_IN_CARD_HEADERP), tags.h (SCM_CELLP):  Renamed the struct
        scm_cell and all its uses to scm_t_cell in accordance to Guile's
        naming scheme for types.

        * alist.c (scm_acons), convert.i.c (CTYPES2UVECT,
        CTYPES2UVECT_OPTIONAL), coop-threads.c (scm_call_with_new_thread,
        scm_spawn_thread), debug.c (scm_make_debugobj), environments.c
        (scm_make_environment), eval.c (scm_closure), fports.c
        (scm_fdes_to_port), gc.c (scm_deprecated_newcell,
        scm_deprecated_newcell2), inline.h (scm_alloc_cell, scm_cell),
        list.c (SCM_I_CONS), numbers.c (scm_i_mkbig), pairs.c (scm_cons),
        ports.c (scm_void_port), procs.c (scm_c_make_subr, scm_makcclo),
        smob.c (scm_make_smob), smob.h (SCM_NEWSMOB), strings.c
        (scm_take_str, scm_allocate_string), strports.c (scm_mkstrport),
        unif.c (scm_make_uve), variable.c (make_variable), vectors.c
        (scm_c_make_vector), vports.c (scm_make_soft_port): Renamed
        scm_alloc_cell to scm_cell.

        * environments.c (core_environments_observe), gc.c
        (scm_deprecated_newcell2), goops.c (wrap_init, scm_wrap_object),
        inline.h (scm_alloc_double_cell, scm_double_cell), num2float.i.c
        (FLOAT2NUM), numbers.c (scm_make_real), procs.c
        (scm_make_procedure_with_setter), smob.h (SCM_NEWSMOB2,
        SCM_NEWSMOB3), struct.c (scm_make_struct, scm_make_vtable_vtable),
        symbols.c (scm_mem2symbol, scm_mem2uninterned_symbol), weaks.c
        (allocate_weak_vector): Renamed scm_alloc_double_cell to
        scm_double_cell.

2002-02-27  Stefan Jahn  <stefan@lkcc.org>

        * convert.i.c, convert.c: Better range checking.

        * inet_aton.c, fports.c: Commented the inclusion of <winsock2.h>.

        * deprecation.c (vsnprintf): Define to `_vsnprintf' for
        Windows (MinGW).

2002-02-26  Thien-Thi Nguyen  <ttn@giblet.glug.org>

        * Makefile.am: Update path to pre-inst-guile automake frag.

2002-02-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_gc_sweep): Make it compile even when deprecated
        features are excluded.

2002-02-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * num2integral.i.c (NUM2INTEGRAL): Fixed signedness problem.

2002-02-25  Gary Houston  <ghouston@arglist.com>

        * convert.c: include <string.h> for convert_i.c.

2002-02-24  Rob Browning  <rlb@defaultvalue.org>

        * .cvsignore: add stamp-h1.

2002-02-21  Neil Jerram  <neil@ossau.uklinux.net>

        * unif.c (scm_array_to_list): Correct name, which had been
        accidentally changed to scm_t_arrayo_list!

2002-02-20  Mikael Djurfeldt  <mdj@linnaeus>

        * gc.c (scm_gc_sweep): Print an error message when aborting due to
        underflowing scm_mallocated.

2002-02-14  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * gc.h, gc.c (scm_must_malloc, scm_must_realloc, scm_must_strdup,
        scm_must_strndup, scm_done_malloc, scm_done_free, scm_must_free):
        Reimplemented using the new scm_gc_malloc, etc., functions and
        deprecated.

2002-02-11  Thien-Thi Nguyen  <ttn@giblet.glug.org>

        * Makefile.am (bin_PROGRAMS): Move `guile_filter_doc_snarfage'
        to `noinst_PROGRAMS'.
        (bin_SCRIPTS): Move all values to `noinst_SCRIPTS'; delete.
        (noinst_PROGRAMS, noinst_SCRIPTS): New.

2002-02-11  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * gc.h, gc.c (scm_gc_sweep): Issue deprecation warning when
        non-zero is returned from a port or smob free function.
        (scm_malloc, scm_realloc, scm_strndup, scm_strdup,
        scm_gc_register_collectable_memory,
        scm_gc_unregister_collectable_memory, scm_gc_malloc,
        scm_gc_realloc, scm_gc_free, scm_gc_strndup, scm_gc_strdup): New.

        * backtrace.c, continuations.c, convert.i.c, coop-threads.c,
        debug-malloc.c, dynl.c, environments.c, environments.h,
        extensions.c, filesys.c, fports.c, gc.c, gc.h, gh_data.c, goops.c,
        guardians.c, hooks.c, init.c, keywords.c, load.c, numbers.c,
        ports.c, posix.c, procs.c, rdelim.c, regex-posix.c, root.c,
        smob.c, stime.c, strings.c, struct.c, struct.h, symbols.c, unif.c,
        vectors.c, weaks.c: Use scm_gc_malloc/scm_malloc and
        scm_gc_free/free instead of scm_must_malloc and scm_must_free, as
        appropriate.  Return zero from smob and port free functions.

        * debug-malloc.c (scm_malloc_reregister): Handle "old == NULL".

        * deprecation.h, deprecation.c: Reimplemented to allow deprecation
        messages while the GC is running.
        (scm_c_issue_deprecation_warning_fmt): New.

        * fports.c (scm_setvbuf): Reset read buffer to saved values when
        it is pointing to the putback buffer.

2002-02-08  Thien-Thi Nguyen  <ttn@giblet.glug.org>

        * gsubr.c (create_gsubr): On "too many args" error,
        also display arg count and name.  Thanks to Bill Schottstaedt.

2002-02-05  Thien-Thi Nguyen  <ttn@giblet.glug.org>

        * Makefile.am: Include $(top_srcdir)/pre-inst-guile.am.

        (bin_SCRIPTS): Remove guile-snarf-docs-texi.
        (alldotdocfiles, snarf2checkedtexi, dotdoc2texi): New vars.
        (guile.texi, guile-procedures.texi): Use $(dotdoc2texi).

        * guile-snarf-docs-texi.in: Bye bye.

2002-02-04  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * symbols.c (scm_make_symbol): Fix typo in docstring.

        * symbols.h (scm_mem2uninterned_symbol, scm_symbol_interned_p,
        scm_make_symbol): New prototypes.

2002-02-03  Marius Vollmer  <mvo@zagadka.ping.de>

        * symbols.h (SCM_SET_SYMBOL_HASH): Removed.
        (SCM_SYMBOL_INTERNED_P): New.
        * symbols.c (scm_symbol_hash): Use scm_ulong2num instead of
        SCM_MAKINUM since hash values can well be bignums.
        (scm_mem2symbol): Only use hash values below SCM_T_BITS_MAX/2.
        This signals a interned symbol.
        (scm_mem2uninterned_symbol, scm_symbol_interned_p,
        scm_make_symbol): New.

        * print.c (scm_iprin1): Print uninterned symbols unreadably.

2002-02-02  Thien-Thi Nguyen  <ttn@giblet.glug.org>

        * __scm.h (HAVE_UINTPTR_T): Only define if UINTPTR_T attributes
        are defined: UINTPTR_MAX, INTPTR_MAX, INTPTR_MIN.
        Thanks to Dave Love.

2002-01-31  Marius Vollmer  <mvo@zagadka.ping.de>

        * symbols.c (scm_gensym): Use " g" as default prefix, not "g".
        This might help to make unintended clashes less likely.
        (scm_string_to_symbol): Protect the string until the symbols is
        created.

2002-01-31  Stefan Jahn  <stefan@lkcc.org>

        * convert.c, convert.h, convert.i.c: New files containing C
        array to Scheme conversion helpers meant to be replacement
        functions for the deprecated gh interface.

        * Makefile.am: Setup rules for new `convert.*' files.

2002-01-28  Stefan Jahn  <stefan@lkcc.org>

        * symbols.c (scm_c_symbol2str): New function, replacement for
        `gh_scm2newsymbol()'.

        * strings.c (scm_c_substring2str): New function.  Proper
        replacement for `gh_get_substr()'.

        * socket.c: Include `stdint.h' if available for the `uint32_t'
        declaration.

        * scmsigs.c (scm_sigaction): Initialize `chandler' (inhibits
        compiler warning).

        * backtrace.c: Include `lang.h' for GUILE_DEBUG conditional.

2002-01-22  Neil Jerram  <neil@ossau.uklinux.net>

        Other changes unrelated to Elisp...

        * eval.c (scm_m_if): Use s_if rather than repeating string literal
        "if".
        (comments): Fix a few typos.
        (scm_for_each): Add parentheses around oddly unparenthesized
        if/while conditions.

        * read.c (scm_read_opts): Add full stop at end of doc for
        `keywords' option.

        * script.c (scm_compile_shell_switches): Use scm_str2symbol
        instead of gh_symbol2scm.

        * srcprop.h (SRCPROPBRK): Return C type rather than SCM.
        (SRCBRKP): Use SRCPROPBRK rather than duplicating its logic.

        * srcprop.c (scm_srcprops_to_plist, scm_source_property): Change
        SRCPROPBRK (x) to SCM_BOOL (SRCPROPBRK (x)).

        First batch of changes for Elisp support...

        * alist.c, async.c, boolean.c, dynl.c, eval.c, filesys.c,
        fluids.c, list.c, load.c, options.c, posix.c, print.c, sort.c,
        throw.c, vectors.c, weaks.c: Add #include for lang.h.

        * eval.c, eval.h, init.c, lang.c, lang.h: Use SCM_ENABLE_ELISP to
        conditionalize compilation and initialization of Elisp support
        function.

        * alist.c (scm_assq, scm_assv, scm_assoc), async.c
        (scm_asyncs_pending, scm_run_asyncs, noop), backtrace.c
        (scm_set_print_params_x), dynl.c (scm_make_argv_from_stringlist),
        filesys.c (fill_select_type, retrieve_select_type), fluids.c
        (scm_swap_fluids, scm_swap_fluids_reverse), list.c (scm_null_p,
        scm_ilength, scm_append_x, scm_last_pair, scm_reverse,
        scm_reverse_x, scm_list_ref, scm_list_set_x, scm_list_cdr_set_x,
        scm_c_memq, scm_memv, scm_member), load.c (scm_search_path),
        options.c (change_option_setting, scm_options), posix.c
        (environ_list_to_c), print.c (scm_iprlist), throw.c
        (scm_exit_status), vectors.c (scm_vector), weaks.c
        (scm_weak_vector): Use SCM_NULL_OR_NIL_P instead of SCM_NULLP.

        * boolean.c (scm_not): Use `SCM_FALSEP || SCM_NILP' instead of
        just SCM_FALSEP.

        * boolean.c (scm_boolean_p): Use `SCM_BOOLP || SCM_NILP' instead
        of just SCM_BOOLP.

        * eval.c (scm_lisp_nil, scm_lisp_t, s_nil_ify, scm_m_nil_ify,
        s_t_ify, scm_m_t_ify, s_0_cond, scm_m_0_cond, s_0_ify,
        scm_m_0_ify, s_1_ify, scm_m_1_ify): Removed.
        (scm_m_atfop): Support function aliasing.  Support both function
        args, which need transformation, and macro args, which do not.
        Add explanatory comments.
        (SCM_CEVAL): In switch cases for SCM_IM_AND, SCM_IM_COND,
        SCM_IM_DO, SCM_IM_IF and SCM_IM_OR, add `|| SCM_NILP' to existing
        checks for SCM_FALSEP.  In switch case for SCM_IM_NIL_COND, use
        SCM_NULLP || SCM_NILP instead of checks against (removed)
        scm_lisp_nil.  Removed switch cases for SCM_IM_NIL_IFY,
        SCM_IM_T_IFY, SCM_IM_0_COND, SCM_IM_0_IFY, SCM_IM_1_IFY.

        * lang.c (scm_nil_cons, scm_nil_car, scm_nil_cdr, scm_null,
        scm_m_while, scm_nil_eq): Commented out; I don't think we need
        these, but I don't want to remove them yet, just in case.
        (scm_init_lang): Define `%nil' variable on Scheme level to hold
        Elisp nil value.

        * lang.h (SCM_NILP): Test against Elisp nil value instead of
        against (removed) scm_lisp_nil.
        (SCM_NILNULLP, SCM_NIL2EOL, SCM_EOL2NIL): Commented out.
        (SCM_NULL_OR_NIL_P): New.

        * list.c (scm_append): Use SCM_VALIDATE_NULL_OR_NIL instead of
        SCM_VALIDATE_NULL.

        * print.c (scm_isymnames): Fix comment.  Remove #@nil-ify,
        #@t-ify, #@0-cond, #@0-ify, #@1-ify.  Add #nil (for SCM_ELISP_NIL
        value).

        * sort.c (scm_sorted_p, scm_merge, scm_merge_list_x, scm_merge_x,
        scm_sort_x, scm_sort, scm_stable_sort_x, scm_stable_sort): Use
        SCM_NULL_OR_NIL_P instead of SCM_NULLP.  In constructions like `if
        (SCM_NULLP (x)) return SCM_EOL;', return x rather than SCM_EOL.

        * tags.h (SCM_IM_NIL_IFY, SCM_IM_T_IFY, SCM_IM_0_COND,
        SCM_IM_0_IFY, SCM_IM_1_IFY): Removed.
        (SCM_IM_BIND, SCM_IM_DELAY, SCM_IM_CALL_WITH_VALUES, SCM_UNBOUND):
        Numbering shifted down accordingly.
        (SCM_ELISP_NIL): New IFLAG.

        * validate.h (SCM_VALIDATE_NULL_OR_NIL): New.

2002-01-10  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c:  Removed outdated references to "everr".  Improved some
        comments.

        (scm_deval_args, deval_args):  Renamed scm_deval_args to
        deval_args, since it is not part of the interface.

        (SCM_CEVAL):  Added (maybe somewhat verbose) comment.  Avoid to
        use references to debug.vect[0] before it exists.  Add parentheses
        to switch statement.

        * goops.h:  Added local emacs variables.

2002-01-10  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.[ch] (scm_deval_args):  Made static.

        * srcprop.c (scm_source_property):  Remove redundant SCM_IMP
        test.

        * strings.c (scm_c_string2str):  Clarified comment.  Replaced
        THINKME by FIXME for uniformness.  Removed question about whether
        arguments need to be protected from garbage collection:  Arguments
        must be protected as any other variable.

2002-01-10  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * procs.h (SCM_CLOSURE_BODY):  New Macro.

        * debug.c (scm_procedure_name, scm_procedure_source), eval.c
        (SCM_CEVAL, SCM_APPLY), goops.c (scm_sys_initialize_object,
        get_slot_value, set_slot_value), procs.c
        (scm_procedure_documentation), sort.c (closureless), stacks.c
        (get_applybody): Replace SCM_CDR (SCM_CODE (...)) by
        SCM_CLOSURE_BODY.

        * sort.c (closureless): Prefer !SCM_FOOP over SCM_NFOOP.

2001-12-26  Marius Vollmer  <mvo@zagadka.ping.de>

        * Makefile.am (guile-procedures.txt): When we don't have makeinfo,
        use "cp" instead.

2001-12-16  Marius Vollmer  <mvo@zagadka.ping.de>

        * stacks.c, stacks.h (scm_t_stackype): Renamed to scm_stack_type
        everywhere.

        * continuations.c (scm_make_continuation): Do not retain the
        throw_value when the continuation is invoked.

2001-12-08  Stefan Jahn  <stefan@lkcc.org>

        * strings.c (scm_c_string2str): New function.  Converts a
        given Scheme string into a C string.  Also put in two
        THINKME's regarding the malloc policy for the missing converter
        routines.

2001-12-01  Neil Jerram  <neil@ossau.uklinux.net>

        * gh_data.c (gh_module_lookup): Use scm_str2symbol rather than
        gh_symbol2scm.

2001-11-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.h (SCM_GC_CELL_WORD, SCM_GC_CELL_OBJECT,
        SCM_GC_SET_CELL_WORD, SCM_GC_SET_CELL_OBJECT):  New macros.

        (SCM_GC_CELL_TYPE, SCM_CELL_WORD, SCM_CELL_OBJECT,
        SCM_SET_CELL_WORD, SCM_SET_CELL_OBJECT, SCM_FREE_CELL_CDR,
        SCM_GC_SET_CELL_OBJECT):  Express in terms of SCM_GC_CELL_*
        macros.

        (SCM_FREE_CELL_P):  Express in terms of SCM_GC_CELL_TYPE.

        * inline.h (scm_alloc_cell, scm_alloc_double_cell):  Use
        SCM_GC_CELL_* macros when accessing free cells.

2001-11-25  Marius Vollmer  <mvo@zagadka.ping.de>

        * vectors.h (SCM_MAKE_VECTOR_TAG): New.
        * unif.h (SCM_MAKE_BITVECTOR_TAG, SCM_MAKE_UVECTOR_TAG): New.
        * symbols.h (SCM_MAKE_SYMBOL_TAG): New.
        * strings.h (SCM_MAKE_STRING_TAG): New.
        * procs.h (SCM_MAKE_CCLO_TAG): New.
        * numbers.h (SCM_MAKE_BIGNUM_TAG): New.

        * goops.h: Replaced SCM_DEBUG_DEPRECATED with
        !SCM_ENABLE_DEPRECATED.

        * async.c, async.h (scm_system_async_mark_from_signal_handler):
        New.

        * scmsigs.c (scm_take_signal): Removed all code that assumes that
        signal handlers are allowed to divert the flow of control.  Call
        scm_system_async_mark_from_signal_handler instead of
        scm_system_async_mark.


        Deprecated SCM_NEWCELL and SCM_NEWCELL2.  Added scm_alloc_cell and
        scm_alloc_double_cell in their place.

        * gc.h (SCM_GC_SET_ALLOCATED, scm_debug_newcell,
        scm_debug_newcell2, scm_tc16_allocated): Removed from header.
        (scm_deprecated_newcell, scm_deprecated_newcell2): New.
        (SCM_NEWCELL, SCM_NEWCELL2): Implement in terms of
        scm_deprecated_newcell and scm_deprecated_newcell2.

        gc.c (scm_tc16_allocated): Only define when including deprecated
        features.
        (scm_debug_newcell, scm_debug_newcell2): Removed.
        (scm_init_storage): Do not initialize scm_tc16_allocated.
        (scm_init_gc): Do it here.
        (allocated_mark): New, from old code.
        (scm_deprecated_newcell, scm_deprecated_newcell2): New.

        * inline.c, inline.h: New files.
        * Makefile.am: Added them in all the right places.

        * _scm.h: Include "libguile/inline.h".

        * alist.c, coop-threads.c, debug.c, environments.c, eval.c,
        fports.c, gh_data.c, goops.c, guardians.c, lang.c, list.c,
        num2float.i.c, numbers.c, pairs.c, ports.c, print.c, procs.c,
        smob.c, smob.h, strings.c, strports.c, struct.c, symbols.c,
        unif.c, variable.c, vectors.c, vports.c, weaks.c: Replaced
        SCM_NEWCELL and SCM_NEWCELL2 with scm_alloc_cell and
        scm_alloc_double_cell, respectively.

2001-11-23  Marius Vollmer  <mvo@zagadka.ping.de>

        * modules.c (scm_c_use_module): Adapt to changes to
        `process-use-modules'.

2001-11-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_divide):  Fix more division by zero errors.

2001-11-21  Gary Houston  <ghouston@arglist.com>

        * Makefile.am (OMIT_DEPENDENCIES): removed, since it seems to be
        obsolete.  autogen.sh says:
        invalid unused variable name: `OMIT_DEPENDENCIES'

2001-11-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_divide):  Fix (/ 0).  Thanks to Keith Wright for
        reporting the bug.

2001-11-21  Marius Vollmer  <mvo@zagadka.ping.de>

        * Makefile.am (install-exec-hook): Prepend $(DESTDIR) to filename.
        Thanks to Eric Gillespie, Jr!

2001-11-21  Stefan Jahn  <stefan@lkcc.org>

        * win32-socket.c (getservent, setservent, endservent,
        getprotoent, setprotoent, endprotoent): New functions.
        Appropriate replacements for M$-Windows.

        * numbers.c (SIZE_MAX, PTRDIFF_MAX, PTRDIFF_MIN): Reintroduced
        these definitions for GUILE_DEBUG.

        * net_db.c: Include "win32-socket.h" if compiling with a native
        M$-Windows compiler.  Include some pieces of code (protoent and
        servent interface) protected by HAVE_* macros when using a
        native M$-Windows compiler.

2001-11-20  Marius Vollmer  <mvo@zagadka.ping.de>

        * modules.c (scm_c_export): Do nothing when the first argument is
        already the terminating NULL.  Thanks to Han-Wen Nienhuys!

2001-11-20  Thien-Thi Nguyen  <ttn@glug.org>

        * Makefile.am (libpath.h): In SCM_BUILD_INFO,
        also include `buildstamp'.

2001-11-18  Rob Browning  <rlb@defaultvalue.org>

        * version.c
        (s_scm_major_version): use SCM_MAJOR_VERSION.
        (s_scm_minor_version): use SCM_MINOR_VERSION.
        (s_scm_micro_version): use SCM_MICRO_VERSION.
        (s_scm_version): use SCM_MAJOR_VERSION, SCM_MINOR_VERSION, and
        SCM_MICRO_VERSION.

        * version.h.in
        (SCM_MAJOR_VERSION): renamed from SCM_GUILE_MAJOR_VERSION.
        (SCM_MINOR_VERSION): renamed from SCM_GUILE_MINOR_VERSION.
        (SCM_MICRO_VERSION): renamed from SCM_GUILE_MICRO_VERSION.

2001-11-18  Neil Jerram  <neil@ossau.uklinux.net>

        * vectors.c (scm_vector_move_left_x, scm_vector_move_right_x):
        Rewrite docstrings without reference to substring-move-left/right,
        since the latter no longer exist.

2001-11-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c:  Removed bogus comment about acros.

        (scm_unmemocar):  Use !SCM_CONSP instead of SCM_IMP.
        Minimize scope of local variable.  Eliminate dependency on
        macro DEBUG_EXTENSIONS.

        (s_splicing):  New error message string.

        (scm_m_body):  Issue 'bad body' message rather than 'missing
        expression' message.

        (scm_m_quote):  Eliminate unnecessary copying.

        (scm_m_lambda, scm_m_letstar, scm_m_letrec, scm_m_let):  Leave the
        checking of the body to scm_m_body.

        (scm_m_do):  Move comment to function header.  Rename arg1 to
        binding.  Made the code a bit easier to read.

        (evalcar):  Removed.

        (iqq):  Added a comment.  Changed the depth parameter to
        unsigned.  Use size_t for vector lengths.  Make sure vector object
        is gc protected as long as its contents are read.  Add some syntax
        checks.  Get rid of unnecessary SCM_IMP test.  Clean up the
        control structure a bit.

        (scm_m_delay):  Added comment about the implementation of
        scm_m_delay.

        (scm_m_define):  Add comment about guile's currying define
        syntax.  Renamed 'proc' to 'name'.  Eliminate dependency on macro
        DEBUG_EXTENSIONS.  Simplified code a bit.  Eliminate SICP code.

        (scm_m_letrec1):  Removed.  Part of the functionality is taken
        over by the new function 'transform_bindings'.

        (transform_bindings):  New function.  Takes over some of the
        functionality of removed function 'scm_m_letrec1', namely to split
        a list of bindings into a reversed list of variables and a list of
        initializers.

        (scm_m_letrec):  Call 'transform_bindings'.

        (scm_m_let):  Minimized scope of local variables.  Renamed 'proc'
        to 'temp' and 'arg1' to 'binding'.  Eliminated redundant SCM_NIMP
        test.  Use 'transform_bindings'.  Fixed scoping error with named
        let (Thanks to Aubrey Jaffer for reporting the bug and to Neil
        Jerram for suggesting the fix).  Cleaned up the control structure
        a bit.

        (scm_m_expand_body):  Use 'transform_bindings'.  Eliminated
        unnecessary consing.  Eliminated unnecessary
        SCM_DEFER/ALLOW_INTS.

        (SCM_CEVAL):  Un-obfuscated some loops.

2001-11-16  Neil Jerram  <neil@ossau.uklinux.net>

        * gc.h (scm_unhash_name): Old declaration removed.

        * eval.c (s_scm_eval): Change @var{primitive-eval} to
        @code{primitive-eval}.

        * feature.c, vectors.c, net_db.c, unif.c, weaks.c, struct.c,
        version.c, alist.c, ports.c, ramap.c, unif.c, strings.c, list.c:
        Change @deffnx lines in docstrings to say {Scheme Procedure}
        rather than primitive or procedure.

        * posix.c (scm_execl), filesys.c (scm_close), unif.c
        (scm_array_set_x, scm_array_contents, scm_uniform_array_read_x,
        scm_bit_set_star_x, scm_bit_invert_x), ramap.c (scm_array_fill_x,
        scm_array_for_each, scm_array_index_map_x), vectors.c (scm_vector,
        scm_make_vector, scm_vector_to_list, scm_vector_fill_x), strop.c
        (scm_string_split, scm_string_ci_to_symbol), strings.c
        (scm_string_p), sort.c (scm_merge), print.c (scm_newline),
        macros.c (scm_macro_type), alist.c (scm_acons, scm_assq):
        Docstring fixes and improvements reflecting edits that have been
        made in the reference manual source.

        * objprop.c (scm_object_properties, scm_set_object_properties_x,
        scm_object_property, scm_set_object_property_x): Remove invalid
        @deffnx lines for corresponding procedure property primitives.

        These changes add a @deffnx C function declaration and function
        index entries for each Guile primitive to the copy of the doc
        snarf output that is used for reference manual synchronization.
        Online help is unchanged.

        * snarf.h (SCM_SNARF_DOCS): Output primitive's C function name.
        (SCM_DEFINE, SCM_DEFINE1, SCM_REGISTER_PROC): Supply to C function
        name to SCM_SNARF_DOCS.

        * guile-snarf-docs-texi.in: Pass the shell script's arguments into
        snarf-check-and-output-texi.

        * Makefile.am (guile-procedures.texi): New rule.
        (BUILT_SOURCES, guile.texi, guile-procedures.txt, CLEANFILES):
        Changed so that the last stage of doc snarfing is now performed
        twice, once to produce guile-procedures.txt for online help, and
        once to produce guile.texi for reference manual synchronization.

2001-11-15  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (RETURN):  Wrap in do{}while(0) in order to make it
        safely usable as a single statement followed by a ';', for example
        in an if statement.

        (SCM_CEVAL, SCM_APPLY):  Clean up code using 'RETURN'.

2001-11-13  Neil Jerram  <neil@ossau.uklinux.net>

        * random.c (scm_random_solid_sphere_x,
        scm_random_hollow_sphere_x): Correct "shere" typos.

        * hashtab.c (scm_hash_fold): Add missing apostrophe to docstring.

        * version.c (scm_version): Update docstring to include
        `micro-version'.

2001-11-13  Marius Vollmer  <mvo@zagadka.ping.de>

        * modules.c (scm_c_export): Call va_end after collecting the
        symbols.

        * strop.h, strop.c (scm_substring_move_left_x,
        scm_substring_move_right_x): Removed.

        * __scm.h (HAVE_UINTPTR_T, HAVE_PTRDIFF_T, HAVE_LONG_LONG,
        HAVE_LONG_LONGS): Define to "1" when defining them, to mirror what
        configure does.

2001-11-12  Marius Vollmer  <mvo@zagadka.ping.de>

        * numbers.c: Document macros to define when including
        num2integral.i.c.  MAX_VALUE and MIN_VALU are no longer used, we
        now rely on SIZEOF_ macros that have been figured out at
        configure time.

        * num2integral.i.c: Adapt to new interface.
        (NUM2INTEGRAL): Test whether a fixnum can be represented in the
        target type by casting it and checking whether it is still the
        same.  Do not try to handle bignums for integral types that are
        smaller than fixnums.  When handling bignums, collect the
        magnituse first into a unsigned type, and correctly check for
        overflow.
        (INTEGRAL2BIG): Do not use MIN_VALUE explicitely by observing that
        only -MIN_VALUE can still be negative of all negative numbers (in
        twos-complement).

        * tags.h (SIZEOF_SCM_T_BITS): Define it appropriately.

        * __scm.h: Define HAVE_UINTPTR_T, HAVE_PTRDIFF_T and
        HAVE_LONG_LONG depending on whether their size is non-zero.

2001-11-11  Thien-Thi Nguyen  <ttn@glug.org>

        * strop.c (scm_string_null_p): Docfix; nfc.
        Thanks to Scott Lenser.

2001-11-07  Neil Jerram  <neil@ossau.uklinux.net>

        * extensions.c (scm_load_extension): Canonicalize docstring
        whitespace.

        * unif.c (scm_uniform_array_write), ports.c
        (scm_current_output_port, scm_force_output), dynwind.c
        (scm_dynamic_wind), scmsigs.c (scm_setitimer, scm_getitimer),
        filesys.c (scm_open, scm_lstat), struct.c
        (scm_make_struct_layout), random.c (scm_random,
        scm_random_solid_sphere_x, scm_random_hollow_sphere_x, strop.c
        (scm_i_index): Remove superfluous whitespace from end of docstring
        lines.

        * filesys.c (scm_select), guardians.c (scm_guardian_greedy_p),
        strings.c (scm_make_string), variable.c (scm_make_variable,
        scm_make_undefined_variable, scm_variable_p, scm_variable_set_x,
        scm_variable_bound_p), scmsigs.c (scm_setitimer, scm_getitimer),
        posix.c (scm_crypt), struct.c (scm_make_vtable_vtable), hashtab.c
        (scm_hash_fold), ports.c (scm_port_for_each): Remove superfluous
        newline at end of docstrings.

        * modules.c (scm_set_current_module): Add missing newline to
        docstring.

2001-11-07  Stefan Jahn  <stefan@lkcc.org>

        * win32-socket.[ch]: New files.  Defines Winsock-API error codes
        and makes them available through Guile.  That is because the
        Winsock-API does not store its errors in `errno' and thus cannot
        return error messages via `strerror (errno)'.

        * socket.c (scm_init_socket): Initialize `win32-socket' part
        here under M$-Windows.

        * numbers.h: Added missing declaration of
        `scm_sys_check_number_conversions()'.

        * error.c: Local definition of SCM_I_STRERROR and SCM_I_ERRNO
        and use in `(strerror)' and `(system-error)'.

        * Makefile.am (EXTRA_libguile_la_SOURCES): Added
        `win32-socket.[ch]' to extra source and header files.

2001-11-06  Marius Vollmer  <mvo@zagadka.ping.de>

        * script.c (scm_shell_usage, scm_compile_shell_switches): Prepend
        a call to turn-on-debugging when --debug has been given instead of
        turning it on directly.  Also, handle new `--no-debug' option,
        which might suppress the call to turn-on-debugging.

2001-11-05  Stefan Jahn  <stefan@lkcc.org>

        * struct.c (s_scm_struct_vtable_p): Corrected docstring.

2001-11-04  Stefan Jahn  <stefan@lkcc.org>

        * Makefile.am (libguile_la_LIBADD): Added $(THREAD_LIBS_LOCAL)
        here (was at guile_LDADD) which describes the dependency
        correctly and allows a clean build on Win32.

        * __scm.h (SCM_API): Follow-up patch.  Renamed __FOO__ macros
        into FOO.

        * __scm.h: USE_DLL_IMPORT indicates the usage of the DLL
        import macros for external libraries (libcrypt, libqthreads,
        libreadline and libregex).

        * coop-defs.h: Include <winsock2.h> for `struct timeval'.

        * posix.c (flock): Added support for flock() in M$-Windows.

        * guile.c (SCM_IMPORT): Follow-up patch.  Use SCM_IMPORT instead
        of __SCM_IMPORT__.

        * fports.c (getflags): Differentiate reading and writing pipes
        descriptors.

        * filesys.c (S_IS*): Redefine all of the S_IS*() macros for
        M$-Windows.

        * coop.c (coop_condition_variable_timed_wait_mutex): Use
        conditionalized error code if `ETIMEDOUT' is not available.
        (scm_thread_usleep): Remove bogus declaration of `struct timeval
        timeout'.

        * numbers.c (PTRDIFF_MIN): Moved this definition where it actually
        belongs.  That is because NO_PREPRO_MAGIC gets undefined after
        each inclusion of `num2integral.i.c'.
        (SIZE_MAX): Define NO_PREPRO_MAGIC if SIZE_MAX is undefined.

2001-11-03  Marius Vollmer  <mvo@zagadka.ping.de>

        * eval.c (scm_m_begin): Allow `(begin)`, with no subforms.
        (SCM_CEVAL): Evaluate an empty `begin' to SCM_UNSPECIFIED.

2001-11-02  Mikael Djurfeldt  <mdj@linnaeus>

        * print.c (scm_iprin1): Mark print state as revealed when
        dispatching to generic write or display.

        * unif.c (scm_ra2contig): Fixed memory overwrite bug.

2001-11-02  Marius Vollmer  <mvo@zagadka.ping.de>

        Support for native Win32.  Thanks to Stefan Jahn!

        * Makefile.am: Add win32-uname.c, win32-uname.h, win32-dirent.c
        and win32-dirent.h to extra source and header files.  These
        include the uname() and the POSIX dirent interface implementation
        for M$-Windows.  Put `-no-undefined' into LDFLAGS to support
        linkers which do not allow unresolved symbols inside shared
        libraries.  Corrected `guile_filter_doc_snarfage$(EXEEXT)'
        dependency.

        * __scm.h: Defined SCM_API.  This macro gets prepended to all
        function and data definitions which should be exported or imported
        in the resulting dynamic link library in the Win32 port.

        * __scm.h, alist.h, arbiters.h, async.h, backtrace.h, boolean.h,
        chars.h, continuations.h, coop-defs.h, coop-threads.h,
        debug-malloc.h, debug.h, deprecation.h, dynl.h, dynwind.h,
        environments.h, eq.h, error.h, eval.h, evalext.h, extensions.h,
        feature.h, filesys.h, fluids.h, fports.h, gc.h, gdb_interface.h,
        gdbint.h, gh.h, goops.h, gsubr.h, guardians.h, hash.h, hashtab.h,
        hooks.h, init.h, ioext.h, iselect.h, keywords.h, lang.h, list.h,
        load.h, macros.h, mallocs.h, modules.h, net_db.h, numbers.h,
        objects.h, objprop.h, options.h, pairs.h, ports.h, posix.h, print.h,
        procprop.h, procs.h, properties.h, ramap.h, random.h, rdelim.h,
        read.h, regex-posix.h, root.h, rw.h, scmsigs.h, script.h, simpos.h,
        smob.h, socket.h, sort.h, srcprop.h, stackchk.h, stacks.h, stime.h,
        strings.h, strop.h, strorder.h, strports.h, struct.h, symbols.h,
        tags.h, threads.h, throw.h, unif.h, values.h, variable.h, vectors.h,
        vports.h, weaks.h:
        Prefixed each each exported symbol with SCM_API.

        * continuations.c: Added comment about the use of the extern
        declarations of {get,set}context() functions used in the ia64 port.

        * continuations.h, gc.c: `__libc_ia64_register_backing_store_base'
        is meant to be a `unsigned long *'.

        * filesys.c: Include `direct.h' if possible.  Use local
        `win32-dirent.h' for the native M$-Windows port.  Define S_IS*()
        macros for M$-Windows.  Implementation of `fstat_Win32()' which is
        able to differentiate between sockets and other file descriptors.
        Use this function as wrapper in `scm_fstat()'.  Fixed typo in
        `scm_dirname()'.

        * fports.c: Include `io.h' is possible.  Put `*fp' into referring
        statement block in `scm_fport_buffer_add()'.
        Some corrections in `getflags()'.

        * gdb_interface.h (GDB_INTERFACE): Also support __CYGWIN__.

        * guile.c: Make sure to define __SCM_IMPORT__ for shared library
        build on Win32.  Disable preloaded symbols on Win2 platforms.

        * ioext.c, ports.c: Include `io.h' is possible.

        * mkstemp.c: Include `process.h' is possible.

        * net_db.c: Disable extern declaration of `h_errno' for __CYGWIN__,
        too.
        Put `scm_return_entry()' into HAVE_GETSERVENT conditional.

        * posix.c: Remove unnecessary dirent includes and defines. Include
        local `win32-uname.h' for MinGW.  Extern declaration of
        `mkstemp()' for systems where it does not exists.  Make
        `getlogin()' available on M$-Windows.

        * scmsigs.c: Made `usleep()' avalable on MinGW.

        * stime.c: On M$-Windows `tzname[]' is known to be `_tzname[]'.

        * win32-dirent.c: Include "win32-dirent.h", not "dirent.h".

        * win32-uname.c: Include "win32-uname.h", not "uname.h".

2001-10-28  Mikael Djurfeldt  <mdj@linnaeus>

        * unif.c (scm_uniform_array_read_x, scm_uniform_array_write):
        Don't apply scm_uniform_vector_length on arrays.

2001-10-14  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_lookupcar, scm_m_letstar, scm_m_do, iqq,
        scm_m_define, scm_m_letrec1, scm_m_let, scm_m_expand_body,
        scm_macroexp, unmemocopy, scm_eval_args, scm_deval_args,
        SCM_CEVAL, scm_map, scm_init_eval):  When building lists, prefer
        scm_list_<n> over scm_cons[2]?.

        (scm_unmemocar, scm_m_cond, scm_m_letstar, scm_m_letrec1,
        scm_m_let, scm_m_atbind, unmemocopy, SCM_CEVAL, SCM_APPLY):  Use
        SCM_C[AD][AD]R instead of explicit form.

        (scm_m_set_x, scm_m_cond, scm_m_letstar, scm_m_do):  Reordered
        comparison parameters.

        (scm_m_case, scm_m_cond, scm_m_letstar, scm_m_do, SCM_CEVAL):  Use
        !SCM_NULLP instead of SCM_NIMP.

        (scm_m_case):  Don't copy the form.  Renamed proc to clause and
        minimized its scope.  Renamed x to clauses.  Removed side
        effecting operation from macro call.

        (scm_m_cond):  Don't copy the form.  Renamed arg1 to clause and
        minimized its scope.  Renamed x to clauses.  Minimized the scope
        of variable 'len'.  Make sure the else clause is treated specially
        even in case of '=>' occurences.  Don't change the else to #t in
        order to be able to distinguish this case in the evaluator.  Leave
        type checking of the recipient to the evaluator.

        (scm_c_improper_memq):  Made the comment somewhat clearer.

        (scm_m_lambda):  Renamed proc to formals.  Removed unnecessary
        test for SCM_IM_LET at the place of the formal parameters.
        Simplified the formal parameter checking.

        (scm_m_letstar):  Added Comment.  Renamed proc to bindings.
        Renamed arg1 to binding and minimized its scope.  Eliminated
        unnecessary consing.

        (scm_m_do):  Renamed proc to bindings.  Minimized the scope of
        variable 'len'.

        (build_binding_list):  New static function.

        (unmemocopy):  Don't use SCM_TYP7 on pairs (it's unclean).
        Further, split up the 'letrec' unmemoizing code to the
        corresponding parts for 'do', 'let' and 'letrec', adding comments
        to each form.  Cleanup the handling of the do form (This removes
        some *real* code :-).

        (SCM_CEVAL):  Removed side effecting operation from macro call.
        Handle the 'else clause of the 'cond form specially - the symbol
        'else is not replaced with #t any more.

2001-10-14  Gary Houston  <ghouston@arglist.com>

        * version.c (scm_version): use sprintf instead of snprintf,
        for portability.  thanks to Bill Schottstaedt.

2001-10-14  Mikael Djurfeldt  <mdj@linnaeus>

        * read.c (scm_lreadr): When user-defined hash procedure returns
        SCM_UNSPECIFIED: Fall back to standard handling instead of raising
        an exception.  (This prevents parsing of uniform vectors from
        interfering with parsing of numbers.)

2001-10-13  Marius Vollmer  <mvo@zagadka.ping.de>

        * numbers.c: Set NO_PREPRO_MAGIC when defining our version of
        PTRDIFF_MIN.  Thanks to Ken Raeburn.

2001-10-07  Marius Vollmer  <mvo@zagadka.ping.de>

        * Makefile.am (EXTRA_libguile_la_SOURCES): Added "mkstemp.c".

        * eval.c (scm_m_atbind): First try to find the variable without
        defining it locally; when it has not been found, define it
        locally.

        * modules.c (module_variable): Pass over variables that exist but
        are unbound.

2001-10-06  Marius Vollmer  <mvo@zagadka.ping.de>

        * backtrace.c (display_backtrace_file_and_line): Only use
        scm_basename when POSIX support is compiled in.  Thanks to Chris
        Cramer.

2001-10-13  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (mem2uinteger):  Return number read so far when coming
        across a hexdigit after having read a # or if not reading a hex
        value.  This will enable the calling code to correctly handle
        forms like 1e2.  (The background is, that the exponent markers d,
        e and f are also hexdigits.)  Thanks to Mikael Djurfeldt for
        providing this patch.

        (mem2complex):  Fix erroneous double-negation.  Now, numbers like
        1-i will be read correctly.

2001-10-12  Mikael Djurfeldt  <mdj@linnaeus>

        * debug.c (scm_mem_to_proc): Fixed typo in previous change.

        * validate.h (SCM_VALIDATE_DOUBLE_DEF_COPY): New macro.

2001-10-12  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * print.c (scm_print_state_vtable, print_state_pool):
        Initialize.  These variables are now registered as gc roots.

        (scm_current_pstate):  Update documentation.

        (scm_current_pstate, scm_make_print_state, scm_free_print_state,
        scm_prin1, scm_init_print):  print_state_pool is registered as a
        gc root and thus does not need to be protected by a surrounding
        pair any more.

        (make_print_state):  The car of print_state_pool no longer holds
        the scm_print_state_vtable.

        (scm_current_pstate, scm_make_print_state, print_circref,
        scm_iprin1, scm_prin1, scm_iprlist):  Prefer !SCM_<foo> over
        SCM_N<foo>.

        (scm_prin1):  When building lists, prefer scm_list_<n> over
        scm_cons[2]?.

        (scm_iprlist):  Removed a redundant SCM_IMP test.

        (scm_simple_format):  Use SCM_EQ_P to compare SCM values.

2001-10-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * debug.c (scm_make_iloc):  Prefer !SCM_<foo> over SCM_N<foo>.

        (scm_memcons, scm_mem_to_proc):  When building lists, prefer
        scm_list_<n> over scm_cons[2]?.

        (scm_mem_to_proc):  Prefer SCM_CONSP over SCM_NIMP.

        (scm_procedure_name):  Use SCM_CADR instead of explicit form.

        (debugobj_print):  Coerce scm_intprint arg 1 to long, not int.
        Thanks to Rob Browning for the patch (see log entry 2001-09-21) -
        for some reason his patch didn't make it into the cvs.

2001-10-09  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (mem2decimal_from_point):  Cleaned up the parsing a
        little bit - should even be somewhat more accurate now.

2001-10-08  Rob Browning  <rlb@defaultvalue.org>

        * gc.c: support ia64 register backing store.
        (SCM_MARK_BACKING_STORE): new macro.

        * continuations.h: support ia64 register backing store.
        (struct scm_t_contregs): add ia64 register backing store.

        * continuations.c: support ia64 register backing store.
        (continuation_mark): mark ia64 register backing store.
        (continuation_free): free ia64 register backing store.
        (scm_make_continuation): capture ia64 register backing store.
        (copy_stack_and_call): copy ia64 register backing store.

2001-10-08  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * hashtab.c (scm_hash_fn_create_handle_x):  The result of assoc_fn
        is known to be #f if no entry is found.  Thus, use !SCM_FALSEP
        instead of SCM_NIMP to test for that case.

        * strings.h (SCM_SET_STRING_LENGTH):  Cast the length to
        scm_t_bits instead of long.

2001-10-06  Marius Vollmer  <mvo@zagadka.ping.de>

        * tags.h (SCM_T_BITS_MAX, SCM_T_SIGNED_BITS_MAX,
        SCM_T_SIGNED_BITS_MIN): New.
        * numbers.h (SCM_MOST_POSITIVE_FIXNUM, SCM_MOST_NEGATIVE_FIXNUM):
        Use them to make these macros computable by the preprocessor.

        * num2integral.i.c (INTEGRAL2NUM): Let the preprocessor test
        whether the integral type fits in a fixnum, not the compiler.
        This removes a spurious compiler warning.  Also, honor the
        NO_PREPRO_MAGIC flag to suppress any preprocessor tests.  This is
        needed for `long long's.

        * numbers.c: Define NO_PREPRO_MAGOC when including
        num2integral.c.i for `long long' and `signed long long'.

2001-10-06  Mikael Djurfeldt  <mdj@linnaeus>

        These changes fixes a race condition in the Guile coop - pthread
        compatibility code.

        * coop.c (mother_awake_p): New variable.
        (coop_create): Set mother_awake_p before creating or signalling
        mother; wait until mother is going to sleep before returning.
        (mother): Reset mother_awake_p before going to sleep.

2001-10-05  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * options.c (protected_objects, scm_init_options):  The content of
        protected_objects is now protected from garbage collection using
        scm_gc_register_root instead of scm_permanent_object.

        (get_option_setting):  New static function that computes an option
        setting as it was formerly done in the function scm_options.

        (get_documented_option_setting):  New static function that
        returns option documentation as it was formerly done in the
        function scm_options.  Note that documentation C strings are no
        longer precomputed into SCM objects.  Instead, they are converted
        into SCM strings every time get_documented_option_setting is
        called.

        (change_option_setting):  New static functions that modifies the
        option setting as it was formerly done in the function
        scm_options.  The function is now exception safe, i. e. won't
        cause a memory leak when interrupted.  Further, only non-immediate
        option values are added to the protection list.

        (scm_options):  This function now has only the purpose to dispatch
        to to get_option_setting, get_documented_option_setting or
        change_option_setting, depending on the arguments given to
        scm_options.

        (scm_init_opts):  Don't convert documentation C strings into SCM
        strings.  Further, don't protect any object values:  They _must_
        be immediate values, otherwise there is no guarantee that they
        have not been collected before anyway.

        * options.[ch] (scm_t_option):  Made type unsigned, name into a
        constant char* and val into a scm_t_bits type.

        (scm_options, scm_init_opts):  The number of options is guaranteed
        to be larger or equal to zero.  Thus, the type is changed to
        unsigned.

2001-10-05  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * num2integral.i.c (NUM2INTEGRAL):  Eliminated some warnings about
        testing an unsigned value for being >= 0.

2001-10-05  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.h:  Removed old comment about using SCM_CAR to access
        non-pair cells.

        (SCM_MOST_POSITIVE_FIXNUM, SCM_MOST_NEGATIVE_FIXNUM):  Make sure
        the return value is signed.  Thanks to Brian Crowder for the bug
        report.

        (SCM_SRS):  Avoid unnecessary casting and don't unpack input
        values.  With this patch, SCM_SRS can be safely used for other
        types than scm_t_signed_bits.  However, it should still better be
        an internal macro and thus be renamed to SCM_I_SRS.

        (SCM_MAKINUM, SCM_INUM):  Use proper casting.

2001-10-03  Gary Houston  <ghouston@arglist.com>

        * continuations.h, unif.h: in the descriptions of the bit patterns
        of the heap cells, make bit 0 the least significant.

2001-09-25  Thien-Thi Nguyen  <ttn@glug.org>

        * chars.h (SCM_MAKE_CHAR): Use `scm_t_bits' instead of `intptr_t'.
        Thanks to Golubev I. N.

2001-09-25  Gary Houston  <ghouston@arglist.com>

        * ports.c (scm_drain_input): extended the docstring.  thanks to
        Alex Schroeder and Thien-Thi Nguyen.

2001-09-23  Mikael Djurfeldt  <mdj@linnaeus>

        * validate.h (SCM_NUM2FLOAT, SCM_NUM2DOUBLE,
        SCM_VALIDATE_FLOAT_COPY, SCM_VALIDATE_DOUBLE_COPY): New
        macros. (The NUM names might soon change.)

        * numbers.h: Added missing declarations.

2001-09-22  Mikael Djurfeldt  <mdj@linnaeus>

        * Makefile.am: Distribute num2float.i.c.

        * num2float.i.c: New file, multiply included by numbers.c, used
        to "templatize" the float <-> num conversion routines.

        * numbers.c: New functions: scm_num2float, scm_float2num,
        scm_num2double, scm_double2num.

2001-09-21  Rob Browning  <rlb@defaultvalue.org>

        * .cvsignore: really add version.h

        * strings.h (SCM_SET_STRING_LENGTH): coerce "l" to a long.
        Otherwise it fails on the alpha.  However, we might rather choose
        this size conditionally.

        * numbers.c (scm_gcd): change "k" to a long from an int.
        Otherwise it fails on the alpha.  However, we might rather choose
        this size conditionally.

        * error.c (scm_wta): coerce char* to intptr_t before int
        assignment.

        * debug.c (debugobj_print): coerce scm_intprint arg 1 to long, not
        int.

        * chars.h (SCM_MAKE_CHAR): coerce value to intptr_t.

2001-09-20  Mikael Djurfeldt  <mdj@linnaeus>

        * numbers.c (scm_integer_expt): Accept inexact integer in second
        argument.  (Thanks to Bill Schottstaedt.)

2001-09-20  Rob Browning  <rlb@defaultvalue.org>

        * .cvsignore: add version.h

        * versiondat.h.in: removed (obsolete).

        * version.h.in: renamed from version.h.
        (SCM_GUILE_MAJOR_VERSION): new public macro.
        (SCM_GUILE_MINOR_VERSION): new public macro.
        (SCM_GUILE_MICRO_VERSION): new public macro.

        * version.h: renamed to version.h.in.

        * version.c
        (scm_major_version): support integer *_VERSION macros.
        (scm_minor_version): support integer *_VERSION macros.
        (scm_micro_version): support integer *_VERSION macros.
        (scm_version): support integer *_VERSION macros.

2001-09-20  Mikael Djurfeldt  <mdj@linnaeus>

        * error.c, error.h: Made error keys globally accessible.
        Applications might want to test for these or use them in a direct
        call to scm_error.

        * num2integral.i.c (NUM2INTEGRAL): Report an error when these
        routines are passed an inexact.  This change in behavior is
        motivated by concordance with R5RS: It is more common that a
        primitive doesn't want to accept an inexact for an exact.

2001-09-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        The following patch partially undoes my patch from 2001-06-30,
        where I added the function scm_gc_mark_cell_conservatively.  The
        function is buggy, since it breaks guile during conservative
        marking if a pointer on the stack points directly into the list of
        free cells on the heap:  With conservative cell marking this will
        cause the whole free list to be scanned and marked - boom!

        * gc.c (allocated_mark, MARK, heap_segment,
        scm_gc_mark_cell_conservatively, scm_init_storage), gc.h
        (scm_gc_mark_cell_conservatively):  Remove function
        scm_gc_mark_cell_conservatively and update the corresponding
        comments and uses accordingly.  Thanks to Christopher Cramer for
        the patch.  (Minor corrections by me.)

2001-09-15  Gary Houston  <ghouston@arglist.com>

        * root.h (scm_root_state): removed the continuation_stack and
        continuation_stack_ptr members, which have no apparent purpose.
        (scm_continuation_stack, scm_continuation_stack_ptr): #defines
        removed.

        * root.c (root_mark), init.c (restart_stack, start_stack), gc
        (scm_igc): remove all references to contination_stack and
        continuation_stack_ptr, avoiding allocation of a vector and
        useless processing during gc.

2001-09-13  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * guardians.c (tconc_t, t_tconc):  Renamed tconc_t to t_tconc.

        (TCONC_IN):  Make sure that the cell word 0 is initialized last.

        (guardians_t, t_guardians):  Renamed guardians_t to t_guardians.

        (GUARDIAN, GUARDIAN_DATA):  Renamed GUARDIAN to GUARDIAN_DATA.

        (guardian_apply, scm_get_one_zombie, scm_make_guardian,
        mark_and_zombify):  Prefer !SCM_<foo> over SCM_N<foo>.

2001-09-13  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * guardians.c (mark_dependencies_in_tconc,
        whine_about_self_centered_zombies, scm_init_guardians):  Register
        the static global variable `self_centered_zombies' via
        scm_gc_register_root, to make some cdr-ing unnecessary.

2001-09-13  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * backtrace.c (display_backtrace_file,
        display_backtrace_file_and_line):  Use SCM_EQ_P when comparing SCM
        values, use SCM_FALSEP when comparing SCM values against #f.
        Thanks to Rob Browning for the bug report.

2001-09-12  Martin Baulig  <martin@home-of-linux.org>

        * strings.[ch] (scm_str2string): New function.

2001-09-06  Marius Vollmer  <mvo@zagadka.ping.de>

        * gc.c (scm_done_free): Always subtract size from scm_mallocated
        when computing nm, even if it's negative.
        (scm_must_malloc): Abort on overflow of scm_mtrigger.
        (scm_must_realloc): Likewise.

2001-09-01  Michael Livshin  <mlivshin@bigfoot.com>

        * numbers.c (scm_sys_check_number_conversions): new function,
        defined if Guile is compiled in debugging mode.  currently checks
        `scm_num2ulong', should check much much more.

        * num2integral.i.c (NUM2INTEGRAL): when converting a bignum to
        unsigned, ensure that it's positive.  thanks to Martin Baulig!

2001-08-31  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h: Added new section about compile time selectable
        features.

        (long_long, ulong_long, scm_sizet, SCM_WNA, SCM_OUTOFRANGE,
        SCM_NALLOC, SCM_HUP_SIGNAL, SCM_INT_SIGNAL, SCM_FPE_SIGNAL,
        SCM_BUS_SIGNAL, SCM_SEGV_SIGNAL, SCM_ALRM_SIGNAL, SCM_GC_SIGNAL,
        SCM_TICK_SIGNAL, SCM_SIG_ORD, SCM_ORD_SIG, SCM_NUM_SIGS):
        Removed.

        * deprecation.c (scm_include_deprecated_features): Simplified.

        * eval.c (EVALCAR, unmemocopy), eval.h (SCM_XEVALCAR): Use
        `SCM_IMP' instead of `!SCM_CELLP´.

        * eval.c (unmemocopy): Eliminate redundant SCM_CELLP tests.
        Extract side-effecting operations from macros.

        (scm_init_eval): Don't initialize *top-level-lookup-closure*,
        scm_top_level_lookup_closure_var and scm_system_transformer.

        * gc.c (CELL_P): New local definition to replace SCM_CELLP.

        (heap_segment):  Use CELL_P instead of SCM_CELLP.

        * init.c (start_stack): Don't initialize
        scm_top_level_lookup_closure_var and scm_system_transformer.

        * modules.c (scm_set_current_module): Don't access
        scm_top_level_lookup_closure_var and scm_system_transformer.

        (scm_sym2var): Don't call scm_variable_set_name_hint.

        (scm_post_boot_init_modules): Removed deprecated initializations.

        * print.c (scm_ipruk): Don't access cell contents of non cells.

        * strings.c (scm_string_set_x):  All strings are writable.

        * strings.h (SCM_STRINGP):  Use SCM_TYP7 to determine the string
        type.  There is only one string type now.

        (SCM_STRING_COERCE_0TERMINATION_X): Deprecated.

        * tags.h: Remove comments about two different string types.

        (SCM_CELLP, SCM_NCELLP): Deprecated.

        * variable.c (make_variable): Remove code variant for vcells.

        * variable.h (SCM_VARIABLE_REF, SCM_VARIABLE_SET,
        SCM_VARIABLE_LOC): Remove code variant for vcells.

        * __scm.h, deprecation.[ch]:  Renamed SCM_DEBUG_DEPRECATED to
        SCM_ENABLE_DEPRECATED with the logic reversed.

        * dynl.c (moddata, registered_mods), dynl.[ch]
        (scm_register_module_xxx, scm_registered_modules,
        scm_clear_registered_modules), error.[ch] (scm_wta), eval.c
        (*top-level-lookup-closure*), eval.[ch]
        (scm_top_level_lookup_closure_var, scm_system_transformer,
        scm_eval_3, scm_eval2), gc.h (SCM_SETAND_CAR, SCM_SETOR_CAR,
        SCM_SETAND_CDR, SCM_SETOR_CDR, SCM_FREEP, SCM_NFREEP,
        SCM_GC8MARKP, SCM_SETGC8MARK, SCM_CLRGC8MARK, SCM_GCTYP16,
        SCM_GCCDR), gc.[ch] (scm_remember, scm_protect_object,
        scm_unprotect_object), modules.c (root_module_lookup_closure,
        scm_sym_app, scm_sym_modules, module_prefix, make_modules_in_var,
        beautify_user_module_x_var, try_module_autoload_var,
        scm_module_full_name), modules.[ch] (scm_the_root_module,
        scm_make_module, scm_ensure_user_module, scm_load_scheme_module),
        ports.h (scm_port, scm_ptob_descriptor, scm_port_rw_active),
        ports.[ch] (scm_close_all_ports_except), random.h (scm_rstate,
        scm_rng, scm_i_rstate), strings.h (SCM_SLOPPY_STRINGP,
        SCM_RWSTRINGP, SCM_STRING_UCHARS, SCM_STRING_CHARS), strings.[ch]
        (scm_read_only_string_p, scm_makstr, scm_makfromstr,
        scm_make_shared_substring), tags.h (scm_tc7_substring,
        SCM_SLOPPY_CONSP, SCM_SLOPPY_NCONSP, scm_tc7_ssymbol,
        scm_tc7_msymbol, scm_tcs_symbols), variable.c (sym_huh),
        variable.[ch] (scm_variable_set_name_hint, scm_builtin_variable),
        variable.h (SCM_VARVCELL, SCM_UDVARIABLEP, SCM_DEFVARIABLEP):
        Removed.

        * dynl.c (scm_dynamic_link, scm_dynamic_func), error.c
        (scm_error_scm), filesys.c (scm_chown, scm_chmod, scm_open_fdes,
        scm_stat, scm_link, scm_rename, scm_delete_file, scm_mkdir,
        scm_rmdir, scm_opendir, scm_chdir, scm_symlink, scm_readlink,
        scm_lstat, scm_copy_file), fports.c (scm_open_file), ioext.c
        (scm_fdopen), net_db.c (scm_gethost, scm_getnet, scm_getproto,
        scm_getserv), ports.c (scm_truncate_file, scm_sys_make_void_port),
        posix.c (scm_getpwuid, scm_getgrgid, scm_execl, scm_execlp,
        scm_execle, scm_mkstemp, scm_utime, scm_access, scm_setlocale,
        scm_mknod, scm_crypt, scm_chroot, scm_getpass, scm_sethostname),
        regex-posix.c (scm_make_regexp, scm_regexp_exec), simpos.c
        (scm_system, scm_getenv), socket.c (scm_inet_aton), stime.c
        (setzone, scm_strftime, scm_strptime), vports.c
        (scm_make_soft_port): Remove calls to
        SCM_STRING_COERCE_0TERMINATION_X.  Since the substring type is
        gone, all strings are 0-terminated anyway.

        * dynl.h (LIBGUILE_DYNL_H, SCM_DYNL_H), random.h (RANDOMH,
        SCM_RANDOM_H): Renamed the macros that are defined to inhibit
        double inclusion of the same headers to the SCM_<filename>_H
        format.

        * eval.c (SCM_CEVAL), gc.c (MARK, scm_gc_sweep), gh_data.c
        (gh_scm2chars), hash.c (scm_hasher), objects.c (scm_class_of),
        print.c (scm_iprin1): The type scm_tc7_substring does not exist
        any more.

        * ports.h (SCM_PORTP, SCM_OPPORTP, SCM_OPINPORTP, SCM_OPOUTPORTP,
        SCM_INPUT_PORT_P, SCM_OUTPUT_PORT_P, SCM_OPENP), tags.h
        (SCM_TYP16_PREDICATE), variable.h (SCM_VARIABLEP): Prefer
        !SCM_<foo> over SCM_N<foo>.

2001-08-31  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * Makefile.am:  Remove references to symbols-deprecated.c.

        * symbols.c (scm_init_symbols):  Don't initialize deprecated
        symbol functions.

        * symbols-deprecated.c:  Removed.

        * fluids.[ch] (scm_internal_with_fluids), gsubr.[ch]
        (scm_make_gsubr, scm_make_gsubr_with_generic), hooks.[ch]
        (scm_create_hook), list.c (list*), list.h (SCM_LIST[0-9],
        scm_listify), list.[ch] (scm_sloppy_memq, scm_sloppy_memv,
        scm_sloppy_member), load.c (scm_end_of_file_key), load.[ch]
        (scm_read_and_eval_x), numbers.[ch] (scm_mkbig, scm_big2inum,
        scm_adjbig, scm_normbig, scm_copybig, scm_2ulong2big, scm_dbl2big,
        scm_big2dbl), numbers.h (SCM_FIXNUM_BIT), procs.h
        (scm_subr_entry, SCM_SUBR_DOC), procs.[ch] (scm_make_subr_opt,
        scm_make_subr, scm_make_subr_with_generic), root.c (setjmp_type,
        setjmp_type), root.[ch] (scm_call_catching_errors), smob.[ch]
        (scm_make_smob_type_mfpe, scm_set_smob_mfpe), strports.[ch]
        (scm_strprint_obj, scm_read_0str, scm_eval_0str), symbols.h
        (SCM_CHARS, SCM_UCHARS, SCM_SETCHARS, SCM_SLOPPY_SUBSTRP,
        SCM_SUBSTR_STR, SCM_SUBSTR_OFFSET, SCM_LENGTH_MAX, SCM_LENGTH,
        SCM_SETLENGTH, SCM_ROSTRINGP, SCM_ROLENGTH, SCM_ROCHARS,
        SCM_ROUCHARS, SCM_SUBSTRP, SCM_COERCE_SUBSTR, scm_strhash,
        scm_sym2vcell, scm_sym2ovcell_soft, scm_sym2ovcell,
        scm_intern_obarray_soft, scm_intern_obarray, scm_intern,
        scm_intern0, scm_sysintern, scm_sysintern0,
        scm_sysintern0_no_module_lookup, scm_symbol_value0,
        scm_string_to_obarray_symbol, scm_intern_symbol,
        scm_unintern_symbol, scm_symbol_binding, scm_symbol_interned_p,
        scm_symbol_bound_p, scm_symbol_set_x, scm_gentemp,
        scm_init_symbols_deprecated), vectors.c (s_vector_set_length_x),
        vectors.[ch] (scm_vector_set_length_x): Removed.

        * fluids.h (FLUIDSH, SCM_FLUIDS_H), gsubr.c (GSUBRH, SCM_GSUBR_H),
        list.h (LISTH, SCM_LIST_H), load.h (LOADH, SCM_LOAD_H), root.h
        (ROOTH, SCM_ROOT_H), strports.h (STRPORTSH, SCM_STRPORTS_H):
        Renamed the macros that are defined to inhibit double inclusion of
        the same headers to the SCM_<filename>_H format.

        * procs.h (SCM_CLOSUREP, SCM_PROCEDURE_WITH_SETTER_P), symbols.h
        (SCM_SYMBOLP), vectors.h (SCM_VECTORP): Prefer !SCM_<foo> over
        SCM_N<foo>.

2001-08-31  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * continuations.h (scm_contregs), debug.h (scm_debug_info,
        scm_debug_frame, SCM_DSIDEVAL), filesys.h (SCM_OPDIRP), fports.h
        (scm_fport), options.h (scm_option), snarf.h (SCM_CONST_LONG,
        SCM_VCELL, SCM_GLOBAL_VCELL, SCM_VCELL_INIT,
        SCM_GLOBAL_VCELL_INIT), srcprop.h (scm_srcprops,
        scm_srcprops_chunk), stacks.h (scm_info_frame, scm_stack), unif.h
        (scm_array, scm_array_dim, SCM_ARRAY_CONTIGUOUS, SCM_HUGE_LENGTH),
        validate.h (SCM_FUNC_NAME, SCM_WTA, RETURN_SCM_WTA,
        SCM_VALIDATE_NUMBER_COPY, SCM_VALIDATE_NUMBER_DEF_COPY,
        SCM_VALIDATE_STRINGORSUBSTR, SCM_VALIDATE_ROSTRING,
        SCM_VALIDATE_ROSTRING_COPY, SCM_VALIDATE_NULLORROSTRING_COPY,
        SCM_VALIDATE_RWSTRING, SCM_VALIDATE_OPDIR): Removed.

        * continuations.h (CONTINUATIONSH, SCM_CONTINUATIONS_H), filesys.h
        (FILESYSH, SCM_FILESYS_H), fports.h (FPORTSH, SCM_FPORTS_H),
        options.h (OPTIONSH, SCM_OPTIONS_H), regex-posix.h (REGEXPOSIXH,
        SCM_REGEX_POSIX_H), snarf.h (LIBGUILE_SNARF_H, SCM_SNARF_H),
        srcprop.h (SCM_SOURCE_PROPERTIES_H, SCM_SRCPROP_H), unif.h
        (SCM_UNIFORM_VECTORS_H, SCM_UNIF_H), validate.h (SCM_VALIDATE_H__,
        SCM_VALIDATE_H): Renamed the macros that are defined to inhibit
        double inclusion of the same headers to the SCM_<filename>_H
        format.

        * debug.h (SCM_RESET_DEBUG_MODE), regex-posix.h (SCM_RGXP),
        srcprop.h (SRCBRKP, PROCTRACEP), struct.h (SCM_STRUCTP),
        validate.h (SCM_VALIDATE_THUNK, SCM_VALIDATE_ARRAY,
        SCM_VALIDATE_VECTOR_OR_DVECTOR, SCM_VALIDATE_VTABLE): Prefer
        !SCM_<foo> over SCM_N<foo>.

2001-08-31  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * _scm.h (_SCMH, SCM__SCM_H), alist.h (ALISTH, SCM_ALIST_H),
        arbiters.h (ARBITERSH, SCM_ARBITERS_H), backtrace.h (BACKTRACEH,
        SCM_BACKTRACE_H), boolean.h (BOOLEANH, SCM_BOOLEAN_H), chars.h
        (SCM_CHARSH, SCM_CHARS_H), coop-defs.h (COOP_DEFSH,
        SCM_COOP_DEFS_H), coop-threads.h (COOP_THREADSH,
        SCM_COOP_THREADS_H), debug-malloc.h (DEBUGMALLOCH,
        SCM_DEBUG_MALLOC_H), dynwind.h (DYNWINDH, SCM_DYNWIND_H),
        environments.h (ENVIRONMENTS_H, SCM_ENVIRONMENTS_H), eq.h (EQH,
        SCM_EQ_H), evalext.h (EVALEXTH, SCM_EVALEXT_H), extensions.h
        (LIBGUILE_EXTENSIONS_H, SCM_EXTENSIONS_H), feature.h (FEATUREH,
        SCM_FEATURE_H), gdbint.h (GDBINTH, SCM_GDBINT_H), guardians.h
        (SCM_GUARDIANH, SCM_GUARDIANS_H), hash.h (HASHH, SCM_HASH_H),
        hashtab.h (HASHTABH, SCM_HASHTAB_H), init.h (INITH, SCM_INIT_H),
        ioext.h (IOEXTH, SCM_IOEXT_H), iselect.h (ISELECTH,
        SCM_ISELECT_H), keywords.h (KEYWORDSH, SCM_KEYWORDS_H), lang.h
        (LANGH, SCM_LANG_H), mallocs.h (MALLOCSH, SCM_MALLOCS_H), net_db.h
        (SCM_NETDBH, SCM_NET_DB_H), objprop.h (OBJPROPH, SCM_OBJPROP_H),
        posix.h (POSIXH, SCM_POSIX_H), procprop.h (PROCPROPH,
        SCM_PROCPROP_H), properties.h (PROPERTIES_H, SCM_PROPERTIES_H),
        ramap.h (RAMAPH, SCM_RAMAP_H), rdelim.h (SCM_RDELIM,
        SCM_RDELIM_H), read.h (READH, SCM_READ_H), rw.h (SCM_RW,
        SCM_RW_H), scmsigs.h (SCMSIGSH, SCM_SCMSIGS_H), script.h (SCRIPTH,
        SCM_SCRIPT_H), simpos.h (SIMPOSH, SCM_SIMPOS_H), socket.h
        (SCM_SOCKETH, SCM_SOCKET_H), sort.h (SORTH, SCM_SORT_H),
        stackchk.h (STACKCHKH, SCM_STACKCHK_H), stime.h (STIMEH,
        SCM_STIME_H), strop.h (STROPH, SCM_STROP_H), strorder.h
        (STRORDERH, SCM_STRORDER_H), threads.h (THREADSH, SCM_THREADS_H),
        throw.h (THROWH, SCM_THROW_H), version.h (VERSIONH,
        SCM_VERSION_H), vports.h (VPORTSH, SCM_VPORTS_H): Renamed
        the macros that are defined to inhibit double inclusion of the
        same headers to the SCM_<filename>_H format.

2001-08-27  Marius Vollmer  <mvo@zagadka.ping.de>

        * ports.c, ports.h, fprots.c, gc.c, ioext.c: Replaced
        "scm_t_portable" with "scm_port_table" which was an artifact from
        the great "scm_*_t -> scm_t_" renaming.

2001-08-25  Thien-Thi Nguyen  <ttn@revel.glug.org>

        * gc_os_dep.c (GC_noop1): Move before `GC_find_limit' where it is
        used; nfc.  Thanks to Bill Schottstaedt.

        * validate.h (SCM_VALIDATE_USHORT_COPY, SCM_VALIDATE_SHORT_COPY,
        SCM_VALIDATE_UINT_COPY, SCM_VALIDATE_INT_COPY): New macros.
        Thanks to Chris Cramer.

2001-08-25  Marius Vollmer  <mvo@zagadka.ping.de>

        * Makefile.am (AUTOMAKE_OPTIONS): Change "foreign" to "gnu".

        * eval.c (scm_m_atbind): Redesigned to behvae like `let', but with
        dynamic scope.
        * dynwind.h (scm_swap_bindings): Declare.
        * dynwind.c (scm_swap_bindings): Make non-static.

2001-08-25  Michael Livshin  <mlivshin@bigfoot.com>

        * gc.c (scm_gc_sweep): now can sweep unreachable variables (by
        doing exactly nothing about them).  thanks Neil!

2001-08-18  Neil Jerram  <neil@ossau.uklinux.net>

        * __scm.h (SCM_ENABLE_VCELLS): Fix spelling mistake in comment.

2001-08-17  Thien-Thi Nguyen  <ttn@revel.glug.org>

        * gc.c: Fix omission bug: Add `heap_segment' forward decl
        (proto) in the case when either `GUILE_DEBUG' or
        `GUILE_DEBUG_FREELIST' preprocessor symbols are defined.

        (map_free_list): Fix typo: Ref `f' correctly.

        Thanks to Chris Cramer.

2001-08-15  Rob Browning  <rlb@defaultvalue.org>

        * Makefile.am (libguile_la_LDFLAGS): use libtool interface version
        variables.
        (libpath.h): change libguileversion to libguileinterface.

2001-08-07  Marius Vollmer  <mvo@zagadka.ping.de>

        * Makefile.am (EXTRA_DIST): Distribute ChangeLog-1996-1999 and
        ChangeLog-2000.  Thanks to Daniel Skarda!

2001-08-07  Michael Livshin  <mlivshin@bigfoot.com>

        * guile-snarf-docs-texi.in: don't call the tokenizer here, we now
        do it from the Makefile.

        * Makefile.am: rearrange the snarfing slightly, so that .doc files
        are of a reasonable size.

2001-08-02  Neil Jerram  <neil@ossau.uklinux.net>

        * stacks.c (scm_make_stack): Improve docstring by explaining use
        of cutting args.

2001-08-01  Marius Vollmer  <mvo@zagadka.ping.de>

        * chars.c (scm_char_alphabetic_p, scm_char_numeric_p,
        scm_char_whitespace_p, scm_char_upper_case_p,
        scm_char_lower_case_p, scm_char_is_both_p): Do not require
        characters to fulfill isascii in addition to the primary
        predicate.

2001-07-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (DIGITS, scm_small_istr2int, scm_istr2int,
        scm_istr2flo, scm_istring2number):  Removed.

        (iflo2str, scm_real_p, scm_integer_p):  Use SCM_<foo> instead of
        SCM_SLOPPY_<foo>.

        (t_exactness, t_radix, DIGIT2UINT, XDIGIT2UINT, mem2uinteger,
        mem2decimal_from_point, mem2ureal, mem2complex, scm_i_mem2number):
        Added.

        (scm_string_to_number):  Use new number parser.

        (scm_exact_to_inexact):  Replace dummy by a GPROC, which also
        handles complex numbers.

        * numbers.h (NUMBERSH, SCM_NUMBERS_H): Rename <foo>H to
        SCM_<foo>_H.

        (SCM_INEXACTP, SCM_REALP, SCM_COMPLEXP):  Prefer !SCM_<pred> over
        SCM_N<pred>.

        (scm_istr2int, scm_istr2flo, scm_istring2number):  Removed.

        (scm_i_mem2number):  Added.

        (scm_exact_to_inexact):  Changed signature.

        * read.c (scm_lreadr):  Perform the shortcut test for '+ and '-
        here instead of within scm_i_mem2number.  Call scm_i_mem2number
        instead of scm_istr2int and scm_istring2number.

2001-07-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_lookupcar, scm_m_body, scm_m_lambda, unmemocopy,
        scm_unmemocopy, scm_badargsp, scm_eval_body, CHECK_EQVISH,
        SCM_CEVAL, scm_nconc2last, SCM_APPLY, scm_copy_tree):  Prefer
        !SCM_<pred> over SCM_N<pred>.

        (scm_eval_body):  Remove side effecting code from macro call.

        (SCM_CEVAL, SCM_APPLY):  Remove goto statement and redundant
        SCM_NIMP test.

2001-07-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * pairs.h (SCM_VALIDATE_PAIR):  Use SCM_CONSP, not SCM_ECONSP.

2001-07-29  Marius Vollmer  <mvo@zagadka.ping.de>

        Removed vcell slot from structs.

        * struct.h (scm_vtable_index_vcell): Removed.  Renumbered
        subsequent indices.

        * struct.c (scm_struct_vtable_p): Do not check vcell slot for
        zero.  Use scm_vtable_index_layout instead of "0" when accessing
        said slot.
        (scm_init_struct): Remove vcell slot layout code from
        required_vtable_fields.

        * objects.h (scm_si_redefined, scm_si_hashsets): Renumbered.

        * goops.c (build_class_class_slots): Removed vcell slot
        definition.

        * goops.h: Renumbered slot indices. (SCM_CLASS_CLASS_LAYOUT):
        Removed vcell slot layout code.
        (scm_si_vcell): Removed.

2001-07-26  Marius Vollmer  <mvo@zagadka.ping.de>

        "Glocs" have been removed.

        * tags.h: Update tag system docs.
        (scm_tc3_cons_gloc): Renamed to scm_tc3_struct.  Changed all uses.
        (scm_tcs_cons_gloc): Renamed to scm_tcs_struct.  Changed all uses.
        (SCM_ECONSP, SCM_NECONSP): Removed.  Changed all uses to SCM_CONSP
        or SCM_NCONSP, respectively.

        * struct.c, struct.h, srcprop.c, procs.c, procprop.c, print.c,
        objects.c. modules.c, goops.c, eval.c, debug.c: Changed all uses
        of scm_tc3_cond_gloc and scm_tcs_cons_gloc.  See above.

        * print.c (scm_iprin1): Remove printing of glocs.  Do not try to
        tell glocs from structs.

        * gc.c (scm_gc_mark, scm_gc_sweep): Remove handling of glocs.

        * eval.c (scm_m_atbind): Make a list of variables, not glocs.
        (scm_ceval, scm_deval): For SCM_IM_BIND, fiddle with variables
        instead of with glocs.
        (EVALCAR): Do not test for glocs.
        (scm_lookupcar, scm_lookupcar1): Do not handle glocs in race
        condition.
        (scm_unmemocar): Do not handle glocs.
        (scm_m_atfop): Memoize as a variable, not as a gloc.
        (scm_eval_args, scm_deval_args): Do not handle glocs.
        (scm_ceval, scm_deval): Likewise.

        * eval.h (SCM_XEVALCAR): Do not test for glocs.
        (SCM_GLOC_VAR, SCM_GLOC_VAL, SCM_GLOC_SET_VAL, SCM_GLOC_VAL_LOC):
        Removed.

        * debug.h, debug.c (scm_make_gloc, scm_gloc_p): Removed.

        * dynwind.c (scm_swap_bindings): Likewise.
        (scm_dowinds): Updated to recognize lists of variables instead of
        lists of glocs.

        * __scm.h (SCM_CAUTIOS, SCM_RECKLESS): Update comments.


        * gc_os_dep.c (GC_noop1): Moved into the same #if/#endif context
        where it is needed.

2001-07-25  Gary Houston  <ghouston@arglist.com>

        * numbers.c (scm_logand, scm_logior, scm_logxor): adjusted the
        docstrings to reflect the n-ary implementation.

2001-07-26  Marius Vollmer  <mvo@zagadka.ping.de>

        * eval.c (scm_ceval, scm_deval): Use "RETURN" macro when returning
        value of a variable, not the plain "return" statement.

2001-07-25  Marius Vollmer  <mvo@zagadka.ping.de>

        * eval.c: Allow variables in memoized code (in addition to glocs).
        (scm_lookupcar): Handle variables in lost races.  Replace symbol
        with variable directly, do not make a gloc.
        (scm_unmemocar): Rewrite variables using a reverse lookup, just
        like glocs.
        (scm_ceval, scm_deval): Deal with variables in SCM_IM_SET and in
        the main switch.

2001-07-25  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * variable.c (scm_i_variable_print): Use "value" instead of
        "binding" since a binding is the mapping between symbols and
        variables, not between variables and their values.

        * tags.h (scm_tc7_variable): New.
        * gc.c (scm_gc_mark): Handle scm_tc7_variable objects.
        * print.c (scm_iprin1): Likewise.

        * variable.h (scm_tc16_variable): Removed.
        (SCM_VARIABLEP): Test for new tc7 code.
        (scm_i_variable_print): New.
        * variable.c (scm_tc16_variable): Removed.
        (variable_print): Renamed to scm_i_variable_print and made
        non-static.
        (variable_equal_p): Removed.
        (make_variable): Construct a tc7 object instead of a smob.
        (scm_init_variable): Do not register smob.

2001-07-22  Marius Vollmer  <mvo@zagadka.ping.de>

        * tags.h: Include inttypes.h when we have it.

2001-07-13  Marius Vollmer  <mvo@zagadka.ping.de>

        * tags.h (SCM_UNBOUND): Make it the 34th isym/iflag, the 33th slot
        is taken by the new SCM_IM_CALL_WITH_VALUES.
        * print.c (scm_isymnames): Update table accordingly.

2001-07-22  Gary Houston  <ghouston@arglist.com>

        * regex-posix.c (s_scm_regexp_exec): use scm_long2num not
        SCM_MAKINUM to convert regoff_t value to SCM.

2001-07-21  Gary Houston  <ghouston@arglist.com>

        * scmsigs.c: include sys/time.h for itimer stuff.

2001-07-19  Rob Browning  <rlb@defaultvalue.org>

        * gc_os_dep.c (GC_noop1): ifdef out (unused) to quiet warning.

        * c-tokenize.lex: add option %nounput to quiet warning.
        Add prototype for yylex to quiet warning.

        * scmconfig.h.in: add flags for setitimer and getitimer.

        * scmsigs.h (scm_init_scmsigs): new prototype.
        (scm_init_scmsigs): new prototype.

        * scmsigs.c (s_scm_setitimer): new function.
        (s_scm_setitimer): new function.

2001-07-18  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * alist.c, arbiters.c, async.h, backtrace.h, boolean.c, chars.c,
        chars.h, continuations.h, debug-malloc.h, dynl.c, feature.c,
        feature.h, filesys.h, fluids.h, fports.h, gc_os_dep.c,
        gdb_interface.h, gh_eval.c, gh_funcs.c, gh_io.c, gh_list.c,
        gh_predicates.c, gsubr.c, gsubr.h, guardians.h,
        guile-func-name-check.in, guile-snarf-docs-texi.in,
        guile-snarf-docs.in, guile-snarf.awk.in, guile-snarf.in,
        hashtab.h, iselect.h, keywords.h, lang.c, list.h, load.h,
        objprop.c, objprop.h, options.c, options.h, random.h,
        regex-posix.h, root.c, root.h, script.c, snarf.h, stackchk.c,
        strerror.c, strop.h, strports.h, threads.h, values.c, values.h,
        version.c, version.h: Updated copyright notice.

2001-07-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * goops.c (sym_layout, sym_vcell, sym_vtable, sym_print,
        sym_procedure, sym_setter, sym_redefined, sym_h0, sym_h1, sym_h2,
        sym_h3, sym_h4, sym_h5, sym_h6, sym_h7, sym_name,
        sym_direct_supers, sym_direct_slots, sym_direct_subclasses,
        sym_direct_methods, sym_cpl, sym_default_slot_definition_class,
        sym_slots, sym_getters_n_setters, sym_keyword_access, sym_nfields,
        sym_environment, scm_sym_change_class):  New static variables to
        hold predefined symbols.

        (build_class_class_slots):  Build the list using scm_list_n
        instead of cons.  Also, slots are already created as lists, thus
        making a call to maplist unnecessary.

        (scm_class_name, scm_class_direct_supers, scm_class_direct_slots,
        scm_class_direct_subclasses, scm_class_direct_methods,
        scm_class_precedence_list, scm_class_slots, scm_class_environment,
        scm_method_procedure, create_standard_classes, purgatory):  Use
        predefined symbols.

        (build_slots_list, compute_getters_n_setters,
        scm_sys_initialize_object, scm_sys_inherit_magic_x,
        get_slot_value_using_name, set_slot_value_using_name,
        scm_sys_invalidate_method_cache_x, scm_generic_capability_p,
        scm_compute_applicable_methods, scm_sys_method_more_specific_p,
        make_struct_class):  Prefer !SCM_<pred> over SCM_N<pred>.

        (scm_sys_prep_layout_x):  Minimize variable scopes.

        (scm_sys_prep_layout_x, scm_sys_fast_slot_ref,
        scm_sys_fast_slot_set_x):  Fix signedness.

        (go_to_hell, go_to_heaven, purgatory, scm_change_object_class,
        lock_cache_mutex, unlock_cache_mutex, call_memoize_method,
        scm_memoize_method, scm_wrap_object):  Use packing and unpacking
        when converting to and from SCM values.

        (scm_enable_primitive_generic_x):  Add rest argument checking.

        (map, filter_cpl, maplist, scm_sys_initialize_object,
        scm_sys_prep_layout_x, slot_definition_using_name,
        scm_enable_primitive_generic_x, scm_compute_applicable_methods,
        call_memoize_method, scm_make, scm_make_class):  Prefer explicit
        predicates over SCM_N?IMP tests.

        (scm_sys_prep_layout_x):  Fix typo in error message.  Fix type
        checking.

        (burnin, go_to_hell):  Use SCM_STRUCT_DATA instead of the SCM_INST
        alias.

2001-07-16  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * fports.c (fport_print):  Don't use SCM_C[AD]R for non pairs.

        * num2integral.i.c (INTEGRAL2NUM, INTEGRAL2BIG):  Fix signedness.

        * symbols-deprecated.c (scm_gentemp):  Simplify vector test.

        * vectors.c (scm_vector_p):  Eliminate redundant IMP test.

2001-07-12  Michael Livshin  <mlivshin@bigfoot.com>

        * strings.c (s_scm_string): fix arg position in assert.

2001-07-11  Gary Houston  <ghouston@arglist.com>

        * strports.c (st_write): use memcpy, not strncpy.  thanks to
        Dale P. Smith.

2001-07-09  Thien-Thi Nguyen  <ttn@revel.glug.org>

        * alist.c, alloca.c, arbiters.c, async.c, async.h, backtrace.c,
        boolean.c, chars.c, continuations.c, coop-defs.h, coop-threads.c,
        debug-malloc.h, debug.c, debug.h, dynl.c, dynwind.c, eq.c,
        error.c, eval.c, evalext.c, feature.c, feature.h, filesys.c,
        filesys.h, fluids.c, fluids.h, fports.c, fports.h, gc.c, gc.h,
        gdbint.c, gsubr.c, guardians.c, hash.c, hashtab.c, hooks.c,
        hooks.h, inet_aton.c, init.c, ioext.c, keywords.c, keywords.h,
        lang.c, list.c, load.c, macros.c, mallocs.c, memmove.c, modules.c,
        net_db.c, numbers.c, numbers.h, objects.c, objprop.c, options.c,
        pairs.c, pairs.h, ports.c, ports.h, posix.c, print.c, print.h,
        procprop.c, procs.c, procs.h, properties.c, putenv.c, ramap.c,
        random.c, random.h, read.c, regex-posix.c, regex-posix.h, root.c,
        root.h, scmsigs.c, script.c, simpos.c, smob.c, snarf.h, socket.c,
        sort.c, srcprop.c, srcprop.h, stackchk.c, stacks.c, stacks.h,
        stime.c, strerror.c, strings.c, strings.h, strop.c, strorder.c,
        strports.c, struct.c, struct.h, symbols-deprecated.c, symbols.c,
        symbols.h, tags.h, threads.c, threads.h, throw.c, unif.c, unif.h,
        variable.c, variable.h, vectors.c, vectors.h, version.c, vports.c,
        weaks.c, weaks.h: Remove "face-lift" comment.

2001-07-08  Rob Browning  <rlb@defaultvalue.org>

        * .cvsignore: add stamp-h.in.

2001-07-04  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * hooks.c (scm_make_hook, scm_add_hook_x),
        (scm_remove_hook_x, scm_reset_hook_x, scm_run_hook): Added return
        value info to the docstrings.

2001-07-03  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        Some more compatibility patches for Windows.

        * posix.c (getlogin): getlogin() implementation for Windows.

        * backtrace.c, ioext.c: Include <stdio.h>.

        * unif.c, script.c, rw.c, error.c: Include <io.h>, if it does
        exist.

        * cpp_sig_symbols.in: Added SIGBREAK.

2001-07-01  Marius Vollmer  <mvo@zagadka.ping.de>

        * strports.c (scm_read_0str, scm_eval_0str): Call
        scm_c_read_string and scm_c_eval_string respectively, not
        themselves.  Thanks to Dale P. Smith!

2001-06-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * unif.c (scm_array_set_x):  The variable args does not
        necessarily have to be a list.  Further, got rid of a redundant
        SCM_NIMP test.

2001-06-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * list.c (SCM_I_CONS):  Make sure the cell type is initialized
        last.

        * gc.c (s_scm_map_free_list, scm_igc, scm_gc_sweep,
        init_heap_seg): Fixed signedness.

        (init_heap_seg):  Replaced strange for-loop with a while loop.

        * weaks.h (WEAKSH, SCM_WEAKS_H):  Rename <foo>H to SCM_<foo>_H.

        (SCM_WVECTP):  Prefer !SCM_<pred> over SCM_N<pred>.

        The following patch adds conservative marking for the elements of
        free or allocated cells.

        * gc.c (allocated_mark, heap_segment):  New static functions.

        (which_seg):  Deleted, since the functionality is now provided by
        function heap_segment.

        (map_free_list):  Use heap_segment instead of which_seg.

        (MARK):  If cell debugging is disabled, mark free cells
        conservatively.

        (scm_mark_locations, scm_cellp):  Extracted the search for the
        heap segment of a SCM value into function heap_segment.

        (scm_init_storage):  Allocated cells must be marked
        conservatively.

        * gc.[ch] (scm_gc_mark_cell_conservatively):  New function.

        The following patch changes the representation of weak vectors to
        double cells instead of using an extension of the vector's
        allocated memory.

        * gc.c (MARK):  Use SCM_SET_WVECT_GC_CHAIN instead of assigning to
        the result of SCM_WVECT_GC_CHAIN.

        (scm_gc_sweep):  Weak vectors don't have extra fields any more.

        * weaks.c (allocate_weak_vector):  New static function.  It does
        not patch any previously created vector object during the
        construction of a weak vector, and thus doesn't need to switch
        off interrupts during vector creation.

        (scm_make_weak_vector, scm_make_weak_key_hash_table,
        scm_make_weak_value_hash_table, scm_make_doubly_weak_hash_table):
        Use allocate_weak_vector to provide the new weak vector object.

        * weaks.h (SCM_WVECT_TYPE, SCM_SET_WVECT_TYPE,
        SCM_SET_WVECT_GC_CHAIN):  New macros.  The weak vector subtype is
        now stored in the double cell.

        (SCM_IS_WHVEC, SCM_IS_WHVEC_V, SCM_IS_WHVEC_B, SCM_IS_WHVEC_ANY):
        Use SCM_WVECT_TYPE.

        (SCM_WVECT_GC_CHAIN):  The weak objects are now chained together
        using an entry of the double cell.

2001-06-30  Thien-Thi Nguyen  <ttn@revel.glug.org>

        * stamp-h.in: bye bye

2001-06-30  Marius Vollmer  <mvo@zagadka.ping.de>

        * gh_eval.c (gh_eval_str): Use scm_c_eval_string instead of
        scm_eval_0str.

        * load.c, load.h (scm_c_primitive_load,
        scm_c_primitive_load_path): New.

        * strports.c, strports.h (scm_c_read_string): Renamed from
        scm_read_0str.  Also, added "const" qualifier to argument.
        (scm_c_eval_string): Renamed from scm_eval_0str.
        (scm_read_0str, scm_eval_0str): Deprecated.

2001-06-28  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * fluids.c (scm_c_with_fluid): Use scm_list_1() instead of
        SCM_LIST1.

2001-06-28  Keisuke Nishida  <kxn30@po.cwru.edu>

        * list.h (scm_list_1, scm_list_2, scm_list_3, scm_list_4, scm_list_5,
        scm_list_n): New functions.
        (SCM_LIST0, SCM_LIST1, SCM_LIST2, SCM_LIST3, SCM_LIST4, SCM_LIST5,
        SCM_LIST6, SCM_LIST7, SCM_LIST8, SCM_LIST9, scm_listify): Deprecated.
        (lots of files): Use the new functions.

        * goops.c (CALL_GF1, CALL_GF2, CALL_GF3, CALL_GF4): Use scm_call_N.

        * strings.c: #include "libguile/deprecation.h".

2001-06-27  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * read.c (scm_lreadr): When reading a hash token, check for a
        user-defined hash procedure first, so that overriding the builtin
        hash characters is possible (this was needed for implementing
        SRFI-4's read synax `f32(...)').

        * num2integral.i.c: Use scm_t_signed_bits instead of scm_t_bits,
        because the latter is unsigned now and breaks comparisons like
        (n < (scm_t_signed_bits)MIN_VALUE).

2001-06-26  Neil Jerram  <neil@ossau.uklinux.net>

        * eval.h, eval.c (scm_call_4): New function.

        * eval.c (SCM_APPLY, SCM_CEVAL, ENTER_APPLY): Call trap handlers
        directly rather than dispatching to them via scm_ithrow and a lazy
        catch.

        * eval.c (scm_evaluator_trap_table), eval.h (SCM_ENTER_FRAME_HDLR,
        SCM_APPLY_FRAME_HDLR, SCM_EXIT_FRAME_HDLR): Add three new options
        for trap handler procedures.

        * debug.h (SCM_RESET_DEBUG_MODE): Add checks for trap handler
        procedures not being #f.

2001-06-27  Michael Livshin  <mlivshin@bigfoot.com>

        * Makefile.am (c-tokenize.c): add rule to generate it.
        (EXTRA_DIST): add c-tokenize.lex, so it gets distributed.

        filter-doc-snarfage.c: remove.

2001-06-26  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * ports.c (scm_output_port_p): Use result of SCM_COERCE_OUTPORT.

        The following set of changes makes compiling Guile under various
        Windows compilers easier.  Compilation under GNU systems should
        not be affected at all.

        Thanks to Stefan Jahn for all necessary information, patches and
        testing.

        * posix.c: Conditialize getpwent, getgrent, kill, getppid, getuid,
        getpgrp, ttyname, primitive-fork and some header inclusion for
        Windows.

        * random.c: Define M_PI, if not predefined and use __int64 for
        LONG64 under Windows.

        * scmsigs.c: Emulate some functions (alarm, sleep, kill) under
        Windows and conditionalize some signal names.

        * socket.c (scm_getsockopt): Added missing comma.
        Include socket library header under Windows.

        * stime.c (CLKTCK): Add cast to int, to make it compile under
        Windows.

        * ports.c (truncate): New function, compiled only under Windows.

        * net_db.c: Do not declare errno under Windows.

        * iselect.h, inet_aton.c: Include socket library headers under
        Windows.

        * guile.c (inner_main): Under Windows, initialize socket library
        and initialize gdb_interface data structures.

        * gdb_interface.h: Under Windows, gdb_interface cannot be
        initialized statically.  Initialize at runtime instead.

        * fports.c (write_all): ssize_t -> size_t.
        (fport_print): Conditionalize call to ttyname().
        (getflags): New function, compiled only under Windows.

        * filesys.c: Conditionalize inclusion of <pwd.h>.  Conditionalize
        primitives chown, link, fcntl.
        (scm_basename, scm_dirname): Under Windows, handle \ as well as /
        as path seperator.

        * backtrace.c: Include <io.h> under Windows.

        * async.h (ASYNCH, SCM_ASYNC_H): Rename <foo>H to SCM_<foo>_H.

        * _scm.h: Added preprocessor conditional for __MINGW32__ for errno
        declaration.

2001-06-27  Keisuke Nishida  <kxn30@po.cwru.edu>

        * eval.c (scm_call_0, scm_call_1, scm_call_2, scm_call_3,
        scm_apply_0, scm_apply_1, scm_apply_2, scm_apply_3): New functions.
        * eval.h (scm_call_0, scm_call_1, scm_call_2, scm_call_3,
        scm_apply_0, scm_apply_1, scm_apply_2, scm_apply_3): Declared.
        * async.c (scm_run_asyncs), coop-threads.c (scheme_body_bootstrip,
        scheme_handler_bootstrip), debug.c (with_traps_inner), dynwind.c
        (scm_dynamic_wind, scm_dowinds), environments.c
        (import_environment_conflict), eval.c (scm_macroexp, scm_force,
        scm_primitive_eval_x, scm_primitive_eval), fluids.c (apply_thunk),
        goops.c (GETVAR, purgatory, make_class_from_template,
        scm_ensure_accessor), hashtab.c (scm_ihashx, scm_sloppy_assx,
        scm_delx_x, fold_proc), hooks.c (scm_c_run_hook), load.c
        (scm_primitive_load), modules.c (scm_resolve_module,
        scm_c_define_module, scm_c_use_module, scm_c_export,
        module_variable, scm_eval_closure_lookup, scm_sym2var,
        scm_make_module, scm_ensure_user_module, scm_load_scheme_module),
        ports.c (scm_port_for_each), print.c (scm_printer_apply),
        properties.c (scm_primitive_property_ref), ramap.c (ramap,
        ramap_cxr, rafe, scm_array_index_map_x, read.c (scm_lreadr),
        scmsigs.c (sys_deliver_signals), sort.c (applyless), strports.c
        (scm_object_to_string, scm_call_with_output_string,
        scm_call_with_input_string), throw.c (scm_body_thunk,
        scm_handle_by_proc, hbpca_body), unif.c (scm_make_shared_array,
        scm_make_shared_array), vports.c (sf_flush, sf_write,
        sf_fill_input, sf_close): Use one of the above functions.
        * goops.c, hashtab.c, scmsigs.c, sort.c: #include "libguile/root.h".

2001-06-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * filesys.c (scm_close), ports.c (scm_close_port,
        scm_port_closed_p), strop.c (scm_string_null_p):  Use SCM_BOOL
        instead of SCM_NEGATE_BOOL.

        * filesys.c (scm_stat):  Clean up type dispatch.

        * filesys.c (scm_stat), ports.c (scm_input_port_p,
        scm_output_port_p):  Get rid of redundant IM type check.

        * filesys.c (scm_readdir, scm_getcwd, scm_readlink), gh_data.c
        (gh_str2scm), load.c (scm_primitive_load, scm_internal_parse_path,
        scm_search_path), net_db.c (scm_gethost, scm_getnet, scm_getproto,
        scm_return_entry), numbers.c (scm_number_to_string), objects.c
        (scm_make_subclass_object), ports.c (scm_port_mode), read.c
        (scm_lreadr), simpos.c (scm_getenv), socket.c (scm_inet_ntoa,
        scm_addr_vector), stime.c (scm_strftime), strings.c
        (scm_makfromstrs, scm_makfrom0str, scm_substring), strings.h
        (SCM_STRING_COERCE_0TERMINATION_X), strop.c (string_copy,
        scm_string_split), strports.c (scm_strport_to_string), symbols.c
        (scm_symbol_to_string), vports.c (sf_write):  Use scm_mem2string
        instead of scm_makfromstr.

        * net_db.c (scm_sethost, scm_setnet, scm_setproto, scm_setserv),
        ports.c (scm_close_all_ports_except), read.c (scm_lreadr,
        scm_read_hash_extend), stime.c (scm_strftime), strings.c
        (scm_string_append, scm_string), strings.h (SCM_STRINGP,
        SCM_STRING_COERCE_0TERMINATION_X, SCM_RWSTRINGP), strop.c
        (string_capitalize_x):  Prefer explicit type check over SCM_N?IMP,
        !SCM_<pred> over SCM_N<pred>.

        * strings.[ch] (scm_makfromstr):  Deprecated.

        (scm_mem2string):  New function, replaces scm_makfromstr.

        * strings.c (scm_substring), strop.c (string_copy,
        scm_string_split), strports.c (scm_strport_to_string), symbols.c
        (scm_symbol_to_string):  Fix gc problem.

        * strings.h (STRINGSH, SCM_STRINGS_H): Rename <foo>H to
        SCM_<foo>_H.

        * validate.h (SCM_VALIDATE_SUBSTRING_SPEC_COPY):  Eliminate
        warning about comparing signed and unsigned values.  This fix is
        not optimal, since it won't work reliably if sizeof (c_start) >
        sizeof (size_t) or sizeof (c_end) > sizeof (size_t).  A better
        solution is to define this macro as an inline function, thus
        allowing to specifiy the types of c_start and c_end.

2001-06-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * debug.h (SCM_DEBUGOBJ_FRAME):  Deliver result as a
        scm_t_debug_frame*.

        * debug.h (DEBUGH, SCM_DEBUG_H), stacks.h (STACKSH, SCM_STACKSH):
        Rename <foo>H to SCM_<foo>_H.

        * stacks.c (NEXT_FRAME, narrow_stack):  Prefer explicit type check
        over SCM_N?IMP, !SCM_<pred> over SCM_N<pred>.

        (narrow_stack):  Make i unsigned.  Don't use side-effecting
        operations in conditions.

        (narrow_stack, scm_make_stack, scm_stack_id,
        scm_last_stack_frame):  Get rid of redundant SCM_N?IMP checks.

        (scm_make_stack, scm_stack_id, scm_last_stack_frame):  Clean up
        type dispatch.  No need to cast result of SCM_DEBUGOBJ_FRAME any
        more.

        (scm_stack_ref, scm_frame_previous, scm_frame_next):  Fix
        signedness.

        (scm_last_stack_frame):  Remove bogus `;'.

        * stacks.h (SCM_FRAMEP):  Fix type check.

2001-06-25  Michael Livshin  <mlivshin@bigfoot.com>

        * Makefile.am (MAINTAINERCLEANFILES): be sure to remove
        c-tokenize.c when doing maintainer-clean.

        * snarf.h (SCM_SNARF_DOCS): change the "grammar" slightly.

        * guile-snarf-docs.in, guile-snarf-docs-texi.in: rewrite &
        simplify.

        * eval.c: all hash signs are in column 0.

        * Makefile.am (guile_filter_doc_snarfage): build using
        c-tokenize.c, not filter-doc-snarfage.c.
        rearrange snarfing dependencies a bit.

        * c-tokenize.lex: new file.

2001-06-25  Marius Vollmer  <mvo@zagadka.ping.de>

        * srcprop.h, srcprop.c (scm_srcprops_to_plist): Renamed from
        scm_t_srcpropso_plist.  See the big type renaming.
        * coop-defs.h (scm_mutex_trylock, scm_cond_timedwait): Likewise.
        Thanks to Seth Alves!

        * numbers.c (SIZE_MAX, PTRDIFF_MIN, PTRDIFF_MAX): Only define when
        they aren't defined already.

2001-06-23  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * backtrace.c (display_backtrace_body):  Use SCM_VALIDATE_STACK
        and SCM_VALIDATE_OPOUTPORT instead of SCM_ASSERT.  Fix signedness
        problem.

        * backtrace.c (display_expression, scm_set_print_params_x,
        display_application, display_frame, scm_backtrace), numbers.c
        (scm_istring2number), objects.c (scm_class_of,
        scm_mcache_lookup_cmethod, scm_mcache_compute_cmethod):  Prefer
        explicit type check over SCM_N?IMP, !SCM_<pred> over SCM_N<pred>.

        * fluids.c (scm_fluid_ref, scm_fluid_set_x):  Fluid numbers are
        always positive.

        * numbers.c (scm_i_mkbig):  Remove unnecessary casts, remove
        unnecessary SCM_DEFER_INTS, SCM_ALLOW_INTS.

        * objects.c (scm_class_of):  Type fix.

        (scm_mcache_lookup_cmethod):  Improved comment, simplified,
        eliminated goto.

        * pairs.h (scm_error_pair_access):  The function can return if
        called recursively.

2001-06-20  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * init.c (scm_init_guile_1): Removed initialization of tag.c.

        * gdbint.c, init.c: Removed inclusion of tag.h.

        * tag.h, tag.c: Removed files.

        * Makefile.am: Removed tag.{h,c,doc,x} in various places.

2001-06-20  Gary Houston  <ghouston@arglist.com>

        * deprecation.c, extensions.c, rw.c: include string.h.

2001-06-19  Gary Houston  <ghouston@arglist.com>

        * filter-doc-snarfage.c (process): added ungetc in
        MULTILINE_COOKIE case since otherwise it fails when there's no
        space between the '(' and the quote of the following string
        (gcc 3.0).

2001-06-14  Marius Vollmer  <mvo@zagadka.ping.de>

        Throughout: replace "scm_*_t" with "scm_t_*", except "scm_lisp_t".

2001-06-14  Marius Vollmer  <mvo@zagadka.ping.de>

        * unif.h (SCM_ARRAY_NDIM): Shift then cast so that no sign
        extension takes place.
        * strings.h (SCM_STRING_LENGTH): Likewise.
        (SCM_STRING_MAX_LENGTH): Use unsigned numbers.

        * __scm.h (ptrdiff_t): Typedef to long when configure didn't find
        it.

        * tags.h: Include <stdint.h> when we have it.
        (scm_bits_t): Changed to be a unsigned type.  Use uintptr_t when
        available.  Else use "unsigned long".
        (scm_signed_bits_t): New.

        * numbers.h (SCM_SRS): Cast shiftee to scm_signed_bits_t.
        (SCM_INUM): Cast result to scm_signed_bits_t.

2001-06-13  Thien-Thi Nguyen  <ttn@revel.glug.org>

        * mkstemp.c: Update path to #include file scmconfig.h.
        Thanks to Golubev I. N.

2001-06-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * struct.h (SCM_STRUCT_VTABLE_FLAGS):  New macro.

        * goops.h (SCM_NUMBER_OF_SLOTS):  Removed bogus `\' at the end of
        the macro definition.

        (SCM_CLASSP, SCM_INSTANCEP, SCM_PUREGENERICP, SCM_ACCESSORP,
        SCM_SIMPLEMETHODP, SCM_FASTMETHODP):  Use SCM_STRUCT_VTABLE_FLAGS
        instead of SCM_INST_TYPE.

        (SCM_ACCESSORP, SCM_SIMPLEMETHODP, SCM_FASTMETHODP):  Make sure
        the object is a struct before accessing its struct flags.

        (SCM_INST_TYPE, SCM_SIMPLEMETHODP, SCM_FASTMETHODP): Deprecated.

2001-06-10  Gary Houston  <ghouston@arglist.com>

        * rdelim.c (scm_init_rdelim_builtins): don't try to activate the
        (ice-9 rdelim) module in (guile) and (guile-user).  it didn't
        work reliably anymore.  try it from boot-9.scm instead.

2001-06-09  Marius Vollmer  <mvo@zagadka.ping.de>

        * ports.c (scm_lfwrite): Maintain columnd and row count in port.
        Thanks to Matthias Köppe!

2001-06-08  Michael Livshin  <mlivshin@bigfoot.com>

        * snarf.h, filter-doc-snarfage.c: more changes to cope with
        space-happy C preprocessors.

        * filter-doc-snarfage.c, guile-snarf.in: try to cope with spaces
        inside cookies.  thanks to Matthias Köppe!

2001-06-08  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * keywords.c (keyword_print):  Don't use SCM_C[AD]R to access
        keywords.  Fix gc protection.

        * objects.c (scm_mcache_lookup_cmethod):  Don't use side effecting
        operations in macro calls.

        * pairs.c (scm_error_pair_access):  Avoid recursion.

        Thanks to Matthias Koeppe for reporting the bugs that correspond
        to the following set of patches.

        * unif.c (scm_bit_set_star_x, scm_bit_invert_x), vectors.h
        (SCM_BITVEC_REF, SCM_BITVEC_SET, SCM_BITVEC_CLR): Obtain the
        bitvector base address using SCM_BITVECTOR_BASE.

        * unif.h (SCM_BITVECTOR_BASE):  Return the base address as an
        unsigned long*.

2001-06-08  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * goops.c (SCM_CLASS_REDEF):  Removed.

        * vectors.h (VECTORSH, SCM_VECTORS_H): Renamed <foo>H to
        SCM_<foo>_H.

        Thanks to Matthias Koeppe for reporting the bugs that correspond
        to the following set of patches.

        * goops.c (scm_sys_prep_layout_x, scm_basic_basic_make_class,
        create_basic_classes, scm_sys_fast_slot_set_x, set_slot_value,
        scm_sys_allocate_instance, clear_method_cache,
        scm_sys_invalidate_method_cache_x, scm_make,
        create_standard_classes, scm_make_port_classes, scm_make_class,
        scm_add_slot):  Use SCM_SET_SLOT to set slot values.

        (prep_hashsets):  Use SCM_SET_HASHSET to set class hash values.

        * goops.h (SCM_SET_SLOT, SCM_SET_HASHSET):  New macros.

        * ramap.c (BINARY_ELTS_CODE, BINARY_PAIR_ELTS_CODE,
        UNARY_ELTS_CODE):  Remove bogus break statement.

        * vectors.h (SCM_BITVEC_REF, SCM_BITVEC_SET, SCM_BITVEC_CLR):
        Don't access bit vectors elements as SCM objects.

        * weaks.c (scm_make_weak_vector, scm_make_weak_key_hash_table,
        scm_make_weak_value_hash_table, scm_make_doubly_weak_hash_table):
        Don't assign to an unpacked value.

2001-06-07  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h (SCM_NORETURN):  Moved here from error.h.

        (SCM_UNUSED):  New macro.

        (SCM_DEBUG_PAIR_ACCESSES):  New macro.

        * backtrace.c (display_error_handler), continuations.c
        (continuation_print), debug.c (debugobj_print), dynwind.c
        (guards_print), environments.c (observer_print,
        core_environments_finalize, leaf_environment_cell,
        leaf_environment_print, eval_environment_print,
        eval_environment_observer, import_environment_define,
        import_environment_undefine, import_environment_print,
        import_environment_observer, export_environment_define,
        export_environment_undefine, export_environment_print,
        export_environment_observer), eval.c (scm_m_quote, scm_m_begin,
        scm_m_if, scm_m_set_x, scm_m_and, scm_m_or, scm_m_case,
        scm_m_cond, scm_m_lambda, scm_m_letstar, scm_m_do, scm_m_delay,
        scm_m_letrec1, scm_m_apply, scm_m_cont, scm_m_nil_cond,
        scm_m_nil_ify, scm_m_t_ify, scm_m_0_cond, scm_m_0_ify,
        scm_m_1_ify, scm_m_atfop, scm_m_at_call_with_values), evalext.c
        (scm_m_generalized_set_x), fluids.c (fluid_print), fports.c
        (fport_print), gc.c (gc_start_stats, scm_remember_upto_here_1,
        scm_remember_upto_here_2, scm_remember_upto_here, mark_gc_async),
        gh_init.c (gh_standard_handler), goops.c (get_slot_value,
        set_slot_value, test_slot_existence, scm_change_object_class,
        scm_m_atslot_ref, scm_m_atslot_set_x, make_struct_class,
        default_setter), guardians.c (guardian_print, guardian_gc_init,
        guardian_zombify, whine_about_self_centered_zombies), guile.c
        (inner_main), init.c (stream_handler), keywords.c (keyword_print),
        mallocs.c (malloc_print), numbers.c (scm_print_real,
        scm_print_complex, scm_bigprint), ports.c (flush_port_default,
        end_input_default, scm_port_print, fill_input_void_port,
        write_void_port), root.c (root_print), smob.c (scm_mark0,
        scm_free0, scm_smob_print, scm_smob_apply_1_error,
        scm_smob_apply_2_error, scm_smob_apply_3_error, free_print),
        stime.c (restorezone), strings.c (scm_makfromstr), struct.c
        (scm_struct_free_0, scm_struct_free_standard,
        scm_struct_free_entity, scm_struct_gc_init, scm_free_structs),
        throw.c (jmpbuffer_print, lazy_catch_print, ss_handler,
        scm_handle_by_throw, scm_ithrow), weaks.c
        (scm_weak_vector_gc_init, scm_mark_weak_vector_spines,
        scm_scan_weak_vectors), ramap.c (scm_array_fill_int), filesys.c
        (scm_dir_print): Mark unused parameters with SCM_UNUSED.

        * error.h (SCM_NORETURN):  Moved to __scm.h.

        * error.h (ERRORH, SCM_ERROR_H), pairs.h (PAIRSH, SCM_PAIRS_H):
        Renamed <foo>H to SCM_<foo>_H.

        * gc.c (debug_cells_gc_interval):  New static variable.

        (scm_assert_cell_valid):  If selected by the user, perform
        additional garbage collections.

        (scm_set_debug_cell_accesses_x):  Extended to let the user specify
        if additional garbage collections are desired.

        (mark_gc_async):  If additional garbage collections are selected
        by the user, don't call the after-gc-hook.  Instead require the
        user to run the hook manually.

        * pairs.c (scm_error_pair_access):  New function.  Only compiled
        if SCM_DEBUG_PAIR_ACCESSES is set to 1.

        * pairs.h (SCM_VALIDATE_PAIR):  New macro.

        (SCM_CAR, SCM_CDR, SCM_SETCAR, SCM_SETCDR):  If
        SCM_DEBUG_PAIR_ACCESSES is set to 1, make sure that the argument
        is a real pair object.  (Glocs are also accepted, but that may
        change.)  If not, abort with an error message.

2001-06-05  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_VALIDATE_NON_EMPTY_COMBINATION):  New macro.

        (SCM_CEVAL, SCM_APPLY):  Replace calls to SCM_EVALIM2 with calls
        to SCM_VALIDATE_NON_EMPTY_COMBINATION.

2001-06-05  Marius Vollmer  <mvo@zagadka.ping.de>

        * extensions.c (scm_c_register_extension): Allow NULL as library
        name.
        (load_extension): Ignore NULL library names when comparing.

        * hash.c (scm_hasher): Use SCM_UNPACK in the case labels so that
        non-pointers are being compared.  Thanks to Alexander Klimov!

2001-06-04  Gary Houston  <ghouston@arglist.com>

        * rw.c (scm_write_string_partial): new procedure implementing
        write-string/partial in (ice-9 rw).
        * rw.h: declare scm_write_string_partial.

2001-06-04  Marius Vollmer  <mvo@zagadka.ping.de>

        * keywords.c (keyword_print): Substract 1 from length of symbol
        name, accounting for the silly dash.

        * dynl.c (scm_registered_modules, scm_clear_registered_modules):
        Do not emit deprecation warning.

        Added exception notice to all files.

        * dynl.c: Include "deprecation.h".

2001-06-03  Marius Vollmer  <mvo@zagadka.ping.de>

        * dynl.c (scm_register_module_xxx, scm_registered_modules,
        scm_clear_registered_modules): Deprecated.

2001-06-02  Rob Browning  <rlb@cs.utexas.edu>

        * .cvsignore: add guile_filter_doc_snarfage guile-snarf-docs
        guile-snarf-docs-texi.

        * fports.c: HAVE_ST_BLKSIZE changed to
        HAVE_STRUCT_STAT_ST_BLKSIZE.
        (scm_fport_buffer_add): HAVE_ST_BLKSIZE changed to
        HAVE_STRUCT_STAT_ST_BLKSIZE.

        * filesys.c (scm_stat2scm): HAVE_ST_RDEV changed to
        HAVE_STRUCT_STAT_ST_RDEV.
        (scm_stat2scm): HAVE_ST_BLKSIZE changed to
        HAVE_STRUCT_STAT_ST_BLKSIZE.
        (scm_stat2scm): HAVE_ST_BLOCKS changed to
        HAVE_STRUCT_STAT_ST_BLOCKS.

2001-06-02  Marius Vollmer  <mvo@zagadka.ping.de>

        * strports.c (scm_eval_string): Use scm_primitive_eval_x instead
        of scm_eval_x to allow module changes between the forms in the
        string.  Set/restore module using scm_c_call_with_current_module.

        * mkstemp.c: New file, slightly modified from libiberties
        mkstemps.c.

2001-05-31  Michael Livshin  <mlivshin@bigfoot.com>

        * guile-snarf-docs.in, guile-snarf-docs-texi.in,
        filter-doc-snarfage.c: new files.

        * Makefile.am: add stuff to [build,] use and distribute
        guile-snarf-docs, guile-snarf-docs-texi, guile_filter_doc_snarfage.

        * guile-snarf.in: grok the new snarf output.

        * snarf.h: make the output both texttools- and `read'-friendly.

        * guile-doc-snarf.in: reimplement in terms of guile-snarf and
        guile-snarf-docs.  (should also deprecate, I guess.  maybe not).

2001-05-31  Marius Vollmer  <mvo@zagadka.ping.de>

        * print.c (scm_simple_format): Support "~~" and "~%".  Signal
        error for unsupported format controls and for superflous
        arguments.  Thanks to Daniel Skarda!

        * print.h, print.c (scm_print_symbol_name): Factored out of
        scm_iprin1.
        (scm_iprin1): Call it.

        * keywords.c (keyword_print): Use scm_print_symbol_name so that
        weird names are printed correctly.

        * print.c (scm_print_symbol_name): Symbols whose name starts with
        `#' or `:' or ends with `:' are considered weird.

2001-05-30  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * numbers.c (scm_difference, scm_divide): Clarified comments for -
        and /.

2001-05-29  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * debug.h: Removed prototype for scm_eval_string.

2001-05-28  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * symbols.c (scm_gensym): Fix buffer overrun (try `(gensym
        (make-string 2000 #\!))' in an older version).

        Change strncpy to memcpy to allow embedded NUL characters in
        symbol prefix.

2001-05-28  Michael Livshin  <mlivshin@bigfoot.com>

        * hooks.c (scm_create_hook): deprecated.
        (make_hook): deleted.
        (scm_make_hook): all the hook creation code is now here.

        * gc.c (scm_init_gc): don't call `scm_create_hook'.  instead make
        a hook, make it permanent, and do a `scm_c_define' on it.

        * strop.c (s_scm_string_capitalize_x): fix docstring quoting.

        * socket.c (s_scm_inet_pton): fix docstring quoting.
        (s_scm_inet_ntop): ditto.

        * num2integral.i.c (INTEGRAL2NUM): cast to fix a warning.

        * hashtab.c (scm_internal_hash_fold): fix argument position in
        SCM_ASSERT.

        * environments.c (s_scm_import_environment_set_imports_x): fix
        argument position in SCM_ASSERT.

        * debug.c (s_scm_make_gloc): fix SCM packing/unpacking.
        (s_scm_make_iloc): ditto.

2001-05-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h (SCM_DEBUG_TYPING_STRICTNESS):  Make 1 the default.

        * eval.c (promise_print):  Read the promise's value as an object.

        (SCM_CEVAL):  Don't perform side-effecting operations in macro
        parameters.

        * eval.h (SCM_EVALIM2):  Fix the typing strictness of the
        conditional expression.

        * gc.c (scm_master_freelist, scm_master_freelist2):  Added missing
        initializer.

        * gh_data.c (gh_set_substr):  Removed redundant unsigned >= 0
        text, removed redundant computation of effective_length and fixed
        the overflow check.

        * goops.c (test_slot_existence):  Use SCM_EQ_P to compare SCM
        values.

        (wrap_init):  Don't use SCM_C[AD]R for non pairs.

        (hell):  Make it a scm_bits_t pointer rather than a SCM pointer.

        * goops.c (scm_sys_modify_class), strports.c (st_resize_port),
        struct.h (SCM_SET_STRUCT_PRINTER):  Store unpacked values.

        * goops.h (SCM_ACCESSORS_OF, SCM_SLOT):  Return a SCM value.

        * goops.h (GOOPSH, SCM_GOOPS_H), modules.h (MODULESH,
        SCM_MODULES_H), objects.h (OBJECTSH, SCM_OBJECTS_H), struct.h
        (STRUCTH, SCM_STRUCT_H), symbols.h (SYMBOLSH, SCM_SYMBOLS_H),
        __scm.h (__SCMH, SCM___SCM_H):  Change <foo>H to SCM_<foo>_H.

        * modules.[ch] (scm_module_tag):  Make it a scm_bits_t value.

        * objects.h (SCM_SET_CLASS_INSTANCE_SIZE):  Fixed typing.

        * ramap.c (ramap_rp):  Removed bogus `;'.

        * sort.c (scm_restricted_vector_sort_x):  Fixed signedness
        problem.

        * symbols.h (SCM_PROP_SLOTS, SCM_SET_PROP_SLOTS, SCM_SYMBOL_FUNC,
        SCM_SET_SYMBOL_FUNC, SCM_SYMBOL_PROPS, SCM_SET_SYMBOL_PROPS):
        Read SCM objects rather than scm_bits_t values.

        * tags.h (SCM_VOIDP_TEST):  Removed.

        (SCM_DEBUG_TYPING_STRICTNESS):  Now takes values 0, 1, 2.  The
        value of 2 now corresponds to the former 1, the current 1
        corresponds to the former situation that SCM_VOIDP_TEST was
        defined.

        (SCM):  Now defined as typedef struct scm_unused_struct * SCM;
        If this appears to be not ANSI compliant, we will change it to
        typedef struct scm_unused_struct { } * SCM;
        Thanks to Han-Wen Nienhuys for the suggestion.

        * unif.c (scm_array_set_x):  Fix typing problem, and use
        SCM_UVECTOR_BASE instead of SCM_VELTS or SCM_CELL_WORD_1 when
        dealing with uniform vectors.

2001-05-27  Michael Livshin  <mlivshin@bigfoot.com>

        * gc.c (scm_init_storage): init `scm_gc_registered_roots'.
        (scm_igc): mark from them, too (precisely, not conservatively!).

        * root.h (scm_gc_registered_roots): new object in
        scm_sys_protects.

        * hooks.c (scm_create_hook): call `scm_gc_protect_object' instead
        `scm_protect_object'.  shouldn't call it at all, though, it seems.

        * gc.c (scm_[un]protect_object): deprecated.
        (scm_gc_[un]protect_object): new names for scm_[un]protect_object.
        (scm_gc_[un]register_root[s]): new.

        * gc.h: add prototypes for scm_gc_[un]protect_object,
        scm_gc_[un]register_root[s].

2001-05-26  Michael Livshin  <mlivshin@bigfoot.com>

        revert the controversial part of the 2001-05-24 changes.

2001-05-25  Marius Vollmer  <mvo@zagadka.ping.de>

        * modules.c (scm_env_module): Exported to Scheme.

        * eval.c (scm_debug_opts): New option `show-file-name'.

        * debug.h (SCM_SHOW_FILE_NAME): New.

        * backtrace.c: Include "libguile/filesys.h".
        (sym_base, display_backtrace_get_file_line,
        display_backtrace_file, display_backtrace_file_and_line): New.
        (display_frame): Call display_backtrace_file_and_line if that is
        requested.
        (display_backtrace_body): Call scm_display_backtrace_file if
        requested.

        * debug.h (scm_lookup_cstr, scm_lookup_soft, scm_evstr):
        Prototypes removed since there's no definition for these
        functions.

2001-05-24  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * unif.c (scm_make_ra, array_free), unif.h (SCM_ARRAY_DIMS):
        Changed use of scm_array->scm_array_t and
        scm_array_dim->scm_array_dim_t to enable build with
        --disable-deprecated.

2001-05-24  Michael Livshin  <mlivshin@bigfoot.com>

        The purpose of this set of changes is to regularize Guile's usage
        of ANSI C integral types, with the following ideas in mind:

        - SCM does not nesessarily have to be long.
        - long is not nesessarily enough to store pointers.
        - long is not nesessarily the same size as int.

        The changes are incomplete and possibly buggy.  Please test on
        something exotic.

        * validate.h
        (SCM_NUM2{SIZE,PTRDIFF,SHORT,USHORT,BITS,UBITS,INT,UINT}[_DEF]):
        new macros.

        * unif.h: type renaming:
        scm_array -> scm_array_t
        scm_array_dim -> scm_array_dim_t
        the old names are deprecated, all in-Guile uses changed.

        * tags.h (scm_ubits_t): new typedef, representing unsigned
        scm_bits_t.

        * stacks.h: type renaming:
        scm_info_frame -> scm_info_frame_t
        scm_stack -> scm_stack_t
        the old names are deprecated, all in-Guile uses changed.

        * srcprop.h: type renaming:
        scm_srcprops -> scm_srcprops_t
        scm_srcprops_chunk -> scm_srcprops_chunk_t
        the old names are deprecated, all in-Guile uses changed.

        * gsubr.c, procs.c, print.c, ports.c, read.c, rdelim.c, ramap.c,
        rw.c, smob.c, sort.c, srcprop.c, stacks.c, strings.c, strop.c,
        strorder.c, strports.c, struct.c, symbols.c, unif.c, values.c,
        vectors.c, vports.c, weaks.c:
        various int/size_t -> size_t/scm_bits_t changes.

        * random.h: type renaming:
        scm_rstate -> scm_rstate_t
        scm_rng -> scm_rng_t
        scm_i_rstate -> scm_i_rstate_t
        the old names are deprecated, all in-Guile uses changed.

        * procs.h: type renaming:
        scm_subr_entry -> scm_subr_entry_t
        the old name is deprecated, all in-Guile uses changed.

        * options.h (scm_option_t.val): unsigned long -> scm_bits_t.
        type renaming:
        scm_option -> scm_option_t
        the old name is deprecated, all in-Guile uses changed.

        * objects.c: various long -> scm_bits_t changes.
        (scm_i_make_class_object): flags: unsigned long -> scm_ubits_t

        * numbers.h (SCM_FIXNUM_BIT): deprecated, renamed to
        SCM_I_FIXNUM_BIT.

        * num2integral.i.c: new file, multiply included by numbers.c, used
        to "templatize" the various integral <-> num conversion routines.

        * numbers.c (scm_mkbig, scm_big2num, scm_adjbig, scm_normbig,
        scm_copybig, scm_2ulong2big, scm_dbl2big, scm_big2dbl):
        deprecated.
        (scm_i_mkbig, scm_i_big2inum, scm_i_adjbig, scm_i_normbig,
        scm_i_copybig, scm_i_short2big, scm_i_ushort2big, scm_i_int2big,
        scm_i_uint2big, scm_i_long2big, scm_i_ulong2big, scm_i_bits2big,
        scm_i_ubits2big, scm_i_size2big, scm_i_ptrdiff2big,
        scm_i_long_long2big, scm_i_ulong_long2big, scm_i_dbl2big,
        scm_i_big2dbl, scm_short2num, scm_ushort2num, scm_int2num,
        scm_uint2num, scm_bits2num, scm_ubits2num, scm_size2num,
        scm_ptrdiff2num, scm_num2short, scm_num2ushort, scm_num2int,
        scm_num2uint, scm_num2bits, scm_num2ubits, scm_num2ptrdiff,
        scm_num2size): new functions.

        * modules.c (scm_module_reverse_lookup): i, n: int -> scm_bits_t.

        * load.c: change int -> size_t in various places (where the
        variable is used to store a string length).
        (search-path): call scm_done_free, not scm_done_malloc.

        * list.c (scm_ilength): return a scm_bits_t, not long.
        some other {int,long} -> scm_bits_t changes.

        * hashtab.c: various [u]int -> scm_bits_t changes.
        scm_ihashx_closure -> scm_ihashx_closure_t (and made a typedef).
        (scm_ihashx): n: uint -> scm_bits_t
        use scm_bits2num instead of scm_ulong2num.

        * gsubr.c: various int -> scm_bits_t changes.

        * goops.[hc]: various {int,long} -> scm_bits_t changes.

        * gh_data.c (gh_num2int): no loss of precision any more.

        * gh.h (gh_str2scm): len: int -> size_t
        (gh_{get,set}_substr): start: int -> scm_bits_t,
        len: int -> size_t
        (gh_<num>2scm): n: int -> scm_bits_t
        (gh_*vector_length): return scm_[u]size_t, not unsigned long.
        (gh_length): return scm_bits_t, not unsigned long.

        * gc.[hc]: various small changes relating to many things stopping
        being long and starting being scm_[u]bits_t instead.
        scm_mallocated should no longer wrap around.

        * fports.h: type renaming:
        scm_fport -> scm_fport_t
        the old name is deprecated, all in-Guile uses changed.

        * fports.c (fport_fill_input): count: int -> scm_bits_t
        (fport_flush): init_size, remaining, count: int -> scm_bits_t

        * debug.h (scm_lookup_cstr, scm_lookup_soft, scm_evstr): removed
        those prototypes, as the functions they prototype don't exist.

        * fports.c (default_buffer_size): int -> size_t
        (scm_fport_buffer_add): read_size, write_size: int -> scm_bits_t
        default_size: int -> size_t
        (scm_setvbuf): csize: int -> scm_bits_t

        * fluids.c (n_fluids): int -> scm_bits_t
        (grow_fluids): old_length, i: int -> scm_bits_t
        (next_fluid_num, scm_fluid_ref, scm_fluid_set_x): n: int ->
        scm_bits_t
        (scm_c_with_fluids): flen, vlen: int -> scm_bits_t

        * filesys.c (s_scm_open_fdes): changed calls to SCM_NUM2LONG to
        the new and shiny SCM_NUM2INT.

        * extensions.c: extension -> extension_t (and made a typedef).

        * eval.h (SCM_IFRAME): cast to scm_bits_t, not int.  just so
        there are no nasty surprises if/when the various deeply magic tag
        bits move somewhere else.

        * eval.c: changed the locals used to store results of SCM_IFRAME,
        scm_ilength and such to be of type scm_bits_t (and not int/long).
        (iqq): depth, edepth: int -> scm_bits_t
        (scm_eval_stack): int -> scm_bits_t
        (SCM_CEVAL): various vars are not scm_bits_t instead of int.
        (check_map_args, scm_map, scm_for_each): len: long -> scm_bits_t
        i: int -> scm_bits_t

        * environments.c: changed the many calls to scm_ulong2num to
        scm_ubits2num.
        (import_environment_fold): proc_as_ul: ulong -> scm_ubits_t

        * dynwind.c (scm_dowinds): delta: long -> scm_bits_t

        * debug.h: type renaming:
        scm_debug_info -> scm_debug_info_t
        scm_debug_frame -> scm_debug_frame_t
        the old names are deprecated, all in-Guile uses changed.
        (scm_debug_eframe_size): int -> scm_bits_t

        * debug.c (scm_init_debug): use scm_c_define instead of the
        deprecated scm_define.

        * continuations.h: type renaming:
        scm_contregs -> scm_contregs_t
        the old name is deprecated, all in-Guile uses changed.
        (scm_contregs_t.num_stack_items): size_t -> scm_bits_t
        (scm_contregs_t.num_stack_items): ulong -> scm_ubits_t

        * continuations.c (scm_make_continuation): change the type of
        stack_size from long to scm_bits_t.

        * ports.h: type renaming:
        scm_port_rw_active -> scm_port_rw_active_t (and made a typedef)
        scm_port -> scm_port_t
        scm_ptob_descriptor -> scm_ptob_descriptor_t
        the old names are deprecated, all in-Guile uses changed.
        (scm_port_t.entry): int -> scm_bits_t.
        (scm_port_t.line_number): int -> long.
        (scm_port_t.putback_buf_size): int -> size_t.

        * __scm.h (long_long, ulong_long): deprecated (they pollute the
        global namespace and have little value beside that).
        (SCM_BITS_LENGTH): new, is the bit size of scm_bits_t (i.e. of an
        SCM handle).
        (ifdef spaghetti): include sys/types.h and sys/stdtypes.h, if they
        exist (for size_t & ptrdiff_t).
        (scm_sizet): deprecated.

        * Makefile.am (noinst_HEADERS): add num2integral.i.c

2001-05-23  Marius Vollmer  <mvo@zagadka.ping.de>

        * snarf.h (SCM_CONST_LONG): Use SCM_VCELL_INIT instead of
        SCM_VARIABLE_INIT since that it what it used to be.

        * deprecation.c (scm_include_deprecated_features): Make docstring
        ANSIsh.  Thanks to Matthias Köppe!

2001-05-21  Marius Vollmer  <mvo@zagadka.ping.de>

        * symbols.c (scm_mem2symbol): Re-introduce indirect cell.  It is
        needed for weak-key hashtables.

        * procs.c (scm_make_subr_with_generic): Add missing last argument
        in call to scm_c_define_gsubr_with_generic.  Thanks to Ariel Rios.

        * eval.c: Use SCM_EQ_P instead of `==' or `!=' in certain
        places. (scm_c_improper_memq): Return 1 instead of SCM_BOOL_T.

        * eval.h (SCM_EVALIM2): Use SCM_EQ_P instead of `=='.

2001-05-20  Marius Vollmer  <mvo@zagadka.ping.de>

        * symbols.c (scm_mem2symbol): Call `scm_must_strndup' instead of
        `duplicate_string'.  Do not use an indirect cell, store symbol
        directly in collision list of hash table.
        (duplicate_string): Removed.

        * init.c (scm_init_guile_1): Call scm_init_extensions.

        * Makefile.am: Add "extensions.c" and related files in all the
        right places.

        * extensions.h, extension.c: New files.

        * gc.h, gc.c (scm_must_strdup, scm_must_strndup): New.

        * modules.h (scm_system_module_env_p): Move out of deprecated
        section.

        * rw.h (scm_init_rw): Added prototype.

        * gsubr.h, gsubr.c (scm_c_make_gsubr, scm_c_define_gsubr,
        scm_c_make_gsubr_with_generic, scm_c_define_gsubr_with_generic):
        New functions.  They replace scm_make_gsubr and
        scm_make_gsubr_with_generic.  The `make' variants only create the
        gsubr object, while the `define' variants also put it into the
        current module.  Changed all callers.
        (scm_make_gsubr, scm_make_gsubr_with_generic): Deprecated.

        * procs.h, procs.c (scm_c_make_subr, scm_c_define_subr,
        scm_c_make_subr_with_generic, scm_c_define_subr_with_generic): New
        functions.  They replace scm_make_subr, scm_make_subr_opt and
        scm_make_subr_with_generic.  The `make' variants only create the
        subr object, while the `define' variants also put it into the
        current module.  Changed all callers.
        (scm_make_subr, scm_make_subr_opt, scm_make_subr_with_generic):
        Deprecated.

        * eval.c, gc.c, gh_funcs.c, goops.c, macros.c, pairs.c, ramap.c,
        rdelim.c, rw.c, scmsigs.c, snarf.h, values.c: Changed according to
        the comments above.

2001-05-19  Neil Jerram  <neil@ossau.uklinux.net>

        * throw.c (scm_lazy_catch): Slight docstring clarification.

2001-05-19  Marius Vollmer  <mvo@zagadka.ping.de>

        * throw.c: Lazy-catch handlers are no longer allowed to return.
        Fixed comments throughout.
        (scm_ithrow): Signal an error when a lazy-catch handler returns.
        Moved actual jump to jmpbuf into if-branch where the jmpbuf is
        recognized as such.

        * version.c (s_scm_micro_version): Fix typo in FUNC_NAME, it
        refered to s_scm_minor_version previously.

        * modules.h, modules.c: Moved around a lot of code so that
        deprecated features appear at the bottom.
        (root_module_lookup_closure, scm_sym_app, scm_sym_modules,
        module_prefix, make_modules_in_var, beautify_user_module_x_var,
        scm_the_root_module, scm_make_module, scm_ensure_user_module,
        scm_load_scheme_module): Deprecated.
        (scm_system_module_env_p): Return SCM_BOOL_T directly for
        environments corresponding to the root module.
        (convert_module_name, scm_c_resolve_module,
        scm_c_call_with_current_module, scm_c_define_module,
        scm_c_use_module, scm_c_export): New.
        (the_root_module): New static variant of scm_the_root_module.  Use
        it everywhere instead of scm_the_root_module.

        * fluids.h, fluids.c (scm_internal_with_fluids): Deprecated.
        (scm_c_with_fluids): Renamed from scm_internal_with_fluids.
        (scm_c_with_fluid): New.
        (scm_with_fluids): Use scm_c_with_fluids instead of
        scm_internal_with_fluids.

        * goops.h, goops.c (scm_init_goops_builtins): Renamed from
        `scm_init_goops'.  Do not explicitly create/switch modules.
        Return SCM_UNSPECIFIED.
        (scm_init_goops): Only register `%init-goops-builtins' procedure.
        (scm_load_goops): Use scm_c_resolve_module instead of
        scm_resolve_module.

        * init.c (scm_init_guile_1): Call `scm_init_goops' instead of
        `scm_init_oop_goops_goopscore_module'.  Call `scm_init_rdelim' and
        `scm_init_rw' prior to loading the startup files.

        * rdelim.h, rdelim.c: (scm_init_rdelim_builtins): Renamed from
        scm_init_rdelim.  Do not explicitly create/switch modules.
        Return SCM_UNSPECIFIED.
        (scm_init_rdelim): Only register `%init-rdelim-builtins'
        procedure.

        * rw.c (scm_init_rw_builtins): Renamed from scm_init_rw.  Do not
        explicitly create/switch modules.  Return SCM_UNSPECIFIED.
        (scm_init_rw): Only register `%init-rw-builtins' procedure.

        * script.c (scm_shell): Evaluate the compiled switches in the
        current module, not in the root module.

2001-05-18  Marius Vollmer  <mvo@zagadka.ping.de>

        * fluids.c (scm_c_with_fluids): Rename from
        scm_internal_with_fluids.
        (scm_internal_with_fluids): Deprecated.
        (scm_c_with_fluid): New.

2001-05-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * print.h (PRINTH, SCM_PRINT_H):  Renamed PRINTH to SCM_PRINT_H.

        (SCM_PORT_WITH_PS_PORT, SCM_PORT_WITH_PS_PS):  Only pairs may be
        accessed with SCM_C[AD]R.

        (SCM_COERCE_OUTPORT):  Removed redundant SCM_NIMP test.

2001-05-16  Rob Browning  <rlb@cs.utexas.edu>

        * version.c (s_scm_major_version): doc fixes.
        (s_scm_minor_version): doc fixes.
        (s_scm_minor_version): new function.

        * version.h (scm_init_version): new function.

        * versiondat.h.in: add GUILE_MICRO_VERSION.

2001-05-16  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * deprecation.c (scm_init_deprecation):  Renamed
        GUILE_WARN_DEPRECATED_DEFAULT to SCM_WARN_DEPRECATED_DEFAULT.

2001-05-16  Marius Vollmer  <mvo@zagadka.ping.de>

        * Makefile.am (cpp_sig_symbols.c, cpp_err_symbols.c): Make
        dependent on cpp_cnvt.awk

2001-05-15  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * script.c (scm_compile_shell_switches): New command line option
        `--use-srfi' for loading a list of SRFIs on startup.
        (scm_shell_usage): Added `--use-srfi' to help message.

2001-05-10  Marius Vollmer  <mvo@zagadka.ping.de>

        Merged from mvo-vcell-cleanup-1-branch.

        The concept of vcells has been removed from Guile.  With it,
        explicit obarrays and associated operations are gone.  Use
        hashtables instead of obarrays.

        Throughout: use scm_sym2var instead of scm_sym2vcell and treat
        result as variable instead of vcell.  Glocs no longer point to a
        vcell but to a variable.  Use scm_c_define instead of
        scm_sysintern and treat the result as a variable (which it is),
        not a vcell.

        * variable.c, variable.h (SCM_VARVCELL, SCM_UDVARIABLEP,
        SCM_DEFVARIABLEP): Deprecated.
        (SCM_VARIABLE_REF, SCM_VARIABLE_SET, SCM_VARIABLE_LOC): New.
        (variable_print): Do not print name of variable.
        (variable_equalp): Compare values, not vcells.
        (anonymous_variable_sym): Removed.
        (make_vcell_variable): Removed.
        (make_variable): New, as replacement.
        (scm_make_variable, scm_make_undefined_variable): Do not take name
        hint parameter.
        (scm_variable_ref): Check for SCM_UNDEFINED and throw "unbound"
        error in that case.
        (scm_builtin_variable): Deprecated.

        * symbols.c, symbols.h (scm_sym2vcell, scm_sym2ovcell_soft,
        scm_sym2ovcell, scm_intern_obarray_soft, scm_intern_obarray,
        scm_intern, scm_intern0, scm_sysintern0_no_module_lookup,
        scm_sysintern, scm_sysintern0, scm_symbol_value0,
        scm_string_to_obarray_symbol, scm_intern_symbol,
        scm_unintern_symbol, scm_symbol_binding, scm_symbol_interned,
        scm_symbol_bound_p, scm_symbol_set_x, scm_gentmp, gentmp_counter):
        Deprecated and moved to "symbols-deprecated.c".
        (copy_and_prune_obarray, scm_builtin_bindings): Removed.
        (scm_init_symbols): Call scm_init_symbols_deprecated.
        * symbols-deprecated.c: New file.
        * Makefile.am: Added symbols-deprecated.c and related files in all
        the right places.

        * snarf.h (SCM_VCELL, SCM_GLOBAL_VCELL, SCM_VCELL_INIT,
        SCM_GLOBAL_VCELL_INIT): Deprecated.
        (SCM_VARIABLE, SCM_GLOBAL_VARIABLE, SCM_VARIABLE_INIT,
        SCM_GLOBAL_VARIABLE_INIT): New, as replacement.  Changed all uses.

        * print.c (scm_iprin1): Use scm_module_reverse_lookup instead of
        SCM_GLOC_SYM.

        * evalext.c, filesys.c, fports.c, gdbint.c, gh_data.c, gsubr.c,
        hooks.c, load.c, numbers.c, objects.c, ports.c, posix.c, procs.c,
        ramap.c, random.c, read.c, regex-posix.c, scmsigs.c, script.c,
        socket.c, srcprop.c, stacks.c, stime.c, struct.c, tag.c, throw.c:
        Changed according to the `throughout' comments.

        * modules.h, modules.c (scm_module_system_booted_p): Changed type
        to `int'.
        (scm_module_type): Removed.
        (the_root_module): Renamed to the_root_module_var.  Now points to
        a variable instead of a vcell.  Updated all uses.
        (scm_the_root_module): Return SCM_BOOL_F when module systems
        hasn't been booted yet.
        (SCM_VALIDATE_STRUCT_TYPE): Removed.
        (scm_post_boot_init_modules): Made static.
        (scm_set_current_module): Call scm_post_boot_init_modules on first
        call.
        (make_modules_in, beautify_user_module_x, resolve_module,
        try_module_autoload, module_make_local_var_x): Tacked on "_var"
        suffix.  Now point to variables instead of vcells.  Updated all
        uses.
        (scm_module_lookup_closure): Deal with the module being SCM_BOOL_F
        and return SCM_BOOL_F in that case.
        (scm_module_transformer): Likewise.
        (sym_module, scm_lookup_closure_module, scm_env_module): New.
        (SCM_F_EVAL_CLOSURE_INTERFACE, SCM_EVAL_CLOSURE_INTERFACE_P): New.
        (scm_eval_closure_lookup): Do not allow new definitions when
        `interface' flag is set.
        (scm_standard_interface_eval_closure): New.
        (scm_pre_modules_obarray, scm_sym2var, scm_module_lookup,
        scm_lookup, scm_module_define, scm_define, scm_c_module_lookup,
        scm_c_lookup, scm_c_module_define, scm_c_define,
        scm_module_reverse_lookup, scm_get_pre_modules_obarray,
        scm_modules_prehistory): New.
        (scm_post_boot_init_modules): Use scm_c_define and scm_c_lookup
        instead of scm_intern0.

        * macros.c (scm_make_synt): Return SCM_UNSPECIFIED instead of the
        symbol.

        * keywords.c (s_scm_make_keyword_from_dash_symbol): Use a regular
        hashtable operations to maintain the keywords, not obarray ones.

        * init.c (scm_load_startup_files): Do not call
        scm_post_boot_init_modules.  This is done by
        scm_set_current_module now.
        (scm_init_guile_1): Call scm_modules_prehistory.  Call
        scm_init_variable early on.

        * goops.c (s_scm_sys_goops_loaded): Get
        var_compute_applicable_methods from scm_sym2var, not from a direct
        invocation of scm_goops_lookup_closure.

        * gh_funcs.c (gh_define): Return SCM_UNSPECIFIED instead of vcell.

        * gc.c: Added simple debugging hack to mark phase of GC: When
        activated, do not tail-call scm_gc_mark.  This gives nice
        backtraces.
        (scm_unhash_name): Removed.

        * feature.c (features): Renamed to features_var.  Now points to a
        variable instead of a vcell.  Updated all uses.

        * eval.h (SCM_TOP_LEVEL_LOOKUP_CLOSURE): Use
        `scm_current_module_lookup_closure' which will do the right thing
        when the module system hasn't been booted yet.
        (SCM_GLOC_SYM): Removed.
        (SCM_GLOC_VAR, SCM_GLOC_SET_VAL): New.
        (SCM_GLOC_VAL, SCM_GLOC_LOC): Reimplemented in terms of variables.

        * eval.c (scm_lookupcar, scm_lookupcar1): Deal with variables
        instead of with vcells.  Do not overwrite `var' with the result of
        the lookup, use the new `real_var' instead.  Remove `var2' in
        exchange (which was only used with threads).
        (sym_three_question_marks): New.
        (scm_unmemocar): Use `scm_module_reverse_lookup' instead of
        `SCM_GLOC_SYM'.
        (scm_lisp_nil, scm_lisp_t): Directly define as symbols.
        (scm_m_atfop): Expect the function definition to be a variable
        instead of a vcell.
        (scm_macroexp): Do not use `unmemocar', explicitely remember the
        symbol instead.
        (scm_unmemocopy): Removed thoughts about anti-macro interface.
        (scm_eval_args): Use more explicit code in the gloc branch of the
        atrocious struct ambiguity test.  The optimizer will sort this
        out.
        (scm_deval_args): Likewise.
        (SCM_CEVAL): Likewise.  Also, do not use unmemocar, explicitely
        remember the symbol instead.  Added some comments where
        scm_tc3_cons_gloc really exclusively refers to structs.
        (scm_init_eval): Use scm_define to initialize "nil" and "t" to
        scm_lisp_nil and scm_lisp_t, respectively.  Use scm_define instead
        of scm_sysintern in general.

        * dynwind.c (scm_swap_bindings): Use SCM_GLOC_SET_VAL instead of
        explicit magic.

        * debug.c (s_scm_make_gloc): Only allow proper variables, no
        pairs.  Put the variable directly in the gloc.
        (s_scm_gloc_p): Use `scm_tc3_cons_gloc' instead of the magic `1'.
        (scm_init_debug): Use scm_c_define instead scm_sysintern.

        * cpp_cnvt.awk: Emit "scm_c_define" instead of "scm_sysintern".

        * backtrace.h, backtrace.c (scm_the_last_stack_fluid): Renamed to
        scm_the_last_stack_fluid_var.  It now points to a variable instead
        of a vcell.  Updated all uses.
        (scm_has_shown_backtrace_hint_p_var): Now points to a variable
        instead of a vcell.  Updated all uses.

        * _scm.h: Include "variables.h" and "modules.h" since almost
        everybody needs them now.

        * root.h (scm_symhash, scm_symhash_vars): Removed.
        * gc.c (scm_init_storage): Do not initialize them.

2001-05-15  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_init_eval):  Initialize scm_undefineds and
        scm_listofnull.

        * gc.c (scm_debug_newcell, scm_debug_newcell2):  Fixed to behave
        like the SCM_NEWCELL macro counterparts.

        (scm_init_storage, scm_init_gc):  Moved initialization of
        scm_tc16_allocated from scm_init_gc to scm_init_storage.

        (scm_init_storage):  Moved initialization of scm_undefineds and
        scm_listofnull to eval.c, initializion of scm_nullstr to
        strings.c, initializion of scm_nullvect to vectors.c.

        * gc.h (SCM_NEWCELL, SCM_NEWCELL2):  Prefer SCM_NULLP over
        SCM_IMP, as in scm_debug_newcell and scm_debug_newcell2.

        * init.c (scm_init_guile_1):  Reordered some initializations and
        added dependcy information comments.

        * load.c (scm_init_load):  Use scm_nullstr.

        * strings.c (scm_init_strings):  Initialize scm_nullstr.

        * vectors.c (scm_init_vectors):  Initialize scm_nullvect.

2001-05-15  Marius Vollmer  <mvo@zagadka.ping.de>

        * values.c (print_values): Print as a unreadable object, not as
        multiple lines.  Thanks to Matthias Köppe!

2001-05-14  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * deprecation.c:  Fixed copyright date.

        * deprecation.h (DEPRECATION_H, SCM_DEPRECATION_H):  Renamed
        DEPRECATION_H to SCM_DEPRECATION_H.

2001-05-10  Thien-Thi Nguyen  <ttn@revel.glug.org>

        * guile-doc-snarf.in: Update copyright.
        Fix relative path bug.  Thanks to Sergey Poznyakoff.

2001-05-10  Marius Vollmer  <mvo@zagadka.ping.de>

        * ports.c (scm_port_revealed, scm_set_port_revealed_x): Only
        accept open ports.  Thanks to Quetzalcoatl Bradley!

2001-05-09  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * procs.c: Increased `scm_subr_table_room' to 800 because Guile now
        has 779 primitives on startup.

2001-05-09  Marius Vollmer  <mvo@zagadka.ping.de>

        * eval.c (scm_i_eval): Copy expression before passing it to
        SCM_XEVAL.  The copy operation was removed unintendedly during my
        change on 2001-03-25.

2001-05-09  Michael Livshin  <mlivshin@bigfoot.com>

        from Matthias Köppe (thanks!):

        * ports.c (scm_c_read): pointer arithmetic on void pointers isn't
        portable.

        * deprecation.c (s_scm_include_deprecated_features): ANSI'fied the
        docstring.

2001-04-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_init_gc): Added FIXME comment.

        * hooks.c: Since hooks don't have a name any more, it is not
        necessary to include objprop.h.

        (hook_print, scm_add_hook_x): Replace SCM_NFALSEP by !SCM_FALSEP.

        (symbol_name, scm_make_hook_with_name): Removed.

        (scm_create_hook): Don't set the hook's name property.

        * hooks.h (HOOKSH, SCM_HOOKS_H): Renamed HOOKSH to SCM_HOOKS_H.

        (SCM_HOOK_NAME, scm_make_hook_with_name): Removed.

        * init.c (scm_init_guile_1): Hooks don't use objprops any more.

        * numbers.c (SCM_FLOBUFLEN, FLOBUFLEN, scm_number_to_string,
        scm_print_real, scm_print_complex): Renamed SCM_FLOBUFLEN to
        FLOBUFLEN and define it unconditionally.

2001-05-07  Marius Vollmer  <mvo@zagadka.ping.de>

        * gh_data.c (gh_lookup): Call gh_module_lookup with
        `scm_current_module ()', not `#f'.
        (gh_module_lookup): Expect a module instead of an obarray as first
        argument and do lookup in that module.

        * ramap.c (raeql_1): Do not call scm_uniform_vector_length on
        arrays.  The length of array is already determined differently and
        scm_uniform_vector_length does not work on arrays.

2001-05-06  Marius Vollmer  <mvo@zagadka.ping.de>

        * snarf.h (SCM_FUNC_CAST_ARBITRARY_ARGS): Use "SCM (*)()" for C++
        as well.  "SCM (*)(...)" does not work on RedHat 7.1.

        * __scm.h (SCM_WTA_DISPATCH_0): Removed ARG and POS parameters,
        they are not used.  Changed `wrong type' error into `wrong num
        args' error.  Changed all callers.

        * numbers.c (scm_difference): Call SCM_WTA_DISPATCH_0 when zero
        arguments are supplied.

2001-05-05  Thien-Thi Nguyen  <ttn@revel.glug.org>

        * regex-posix.c (scm_regexp_exec): Expand docstring to briefly
        describe `regexp/notbol' and `regexp/noteol' execution flags.

        * strop.c (scm_substring_move_x): Doc fix; nfc.

2001-05-05  Marius Vollmer  <mvo@zagadka.ping.de>

        * objects.c, objects.h (scm_valid_object_procedure_p): New.
        (scm_set_object_procedure_x): Use it to check argument.  Fix
        docstring.

        * evalext.c (scm_definedp): Fix docstring.

2001-05-05  Gary Houston  <ghouston@arglist.com>

        * socket.c: use HAVE_IPV6 instead of AF_INET6 to enable IPv6
        support.

2001-05-04  Neil Jerram  <neil@ossau.uklinux.net>

        * eval.c (scm_promise_p), list.c (scm_append_x, scm_reverse_x),
        symbols.c (scm_symbol_to_string), vports.c (scm_make_soft_port):
        Change R4RS references to R5RS.

        * guile-snarf.awk.in: Fixes so that (i) blank lines in the
        docstring source are correctly reproduced in the output (ii)
        we don't anymore get occasional trailing quotes.  Also reorganized
        and commented the code a little.

        * scmsigs.c (scm_raise), throw.c (scm_throw): Docstring format
        fixes.

2001-05-04  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * strop.c (scm_string_split): New procedure.

        * strop.h (scm_string_split): Added prototype.

2001-05-04  Gary Houston  <ghouston@arglist.com>

        * socket.c: define uint32_t if netdb.h doesn't.  thanks to
        Dale P. Smith.

2001-05-02  Marius Vollmer  <mvo@zagadka.ping.de>

        * rw.c: Include "modules.h" and "strports.h".

        * net_db.h (scm_gethost): Added prototype.

        * deprecation.h, deprecation.c: New.
        * Makefile.am (libguile_la_SOURCES): Added "deprecation.c".
        (DOT_X_FILES): Added "deprecation.x".
        (modinclude_HEADERS): Added "deprecation.h".

        * init.c: Include "deprecation.h".
        (scm_init_guile_1): Call scm_init_deprecation.

2001-05-01  Marius Vollmer  <mvo@zagadka.ping.de>

        * gh.h (gh_init_guile, gh_make_string, gh_string_length,
        gh_string_ref, gh_string_set_x, gh_substring, gh_string_append):
        New.

2001-04-29  Gary Houston  <ghouston@arglist.com>

        * rw.c: new file, implementing C part of module (ice-9 rw).
        (scm_read_string_x_partial): moved from ioext.c
        (scm_init_rw): new proc.
        * rw.h: new file.
        init.c: include rw.h and call scm_init_rw.
        Makefile.am: include rw.c and rw.h.

2001-04-28  Rob Browning  <rlb@cs.utexas.edu>

        * numbers.c: enabled local definition of SCM_FLOBUFLEN until we
        know what's supposed to happen to it.

        * list.h (scm_list_star): deprecation expired - removed.

        * numbers.h (scm_dblproc): deprecation expired - removed.
        (SCM_UNEGFIXABLE): deprecation expired - removed.
        (SCM_FLOBUFLEN): deprecation expired - removed.
        (SCM_INEXP): deprecation expired - removed.
        (SCM_CPLXP): deprecation expired - removed.
        (SCM_REAL): deprecation expired - removed.
        (SCM_IMAG): deprecation expired - removed.
        (SCM_REALPART): deprecation expired - removed.
        (scm_makdbl): deprecation expired - removed.
        (SCM_SINGP): deprecation expired - removed.
        (SCM_NUM2DBL): deprecation expired - removed.
        (SCM_NO_BIGDIG): deprecation expired - removed.

        * tags.h (SCM_DOUBLE_CELLP): deprecation expired - removed.
        (scm_tc_dblr): deprecation expired - removed.
        (scm_tc_dblc): deprecation expired - removed.
        (scm_tc16_flo): deprecation expired - removed.
        (scm_tc_flo): deprecation expired - removed.

        * tag.h (scm_tag): deprecation expired - removed.

        * tag.c: (scm_tag): deprecation expired - removed.

        * ioext.c: (scm_fseek): deprecation expired - removed.

        * ioext.h (scm_fseek): deprecation expired - removed.

        * gh_data.c (gh_int2scmb): deprecation expired - removed.

        * gh.h (gh_int2scmb): deprecation expired - removed.

2001-04-28  Neil Jerram  <neil@ossau.uklinux.net>

        * stacks.c (scm_make_stack): Fix typo in docstring.

2001-04-27  Rob Browning  <rlb@cs.utexas.edu>

        * error.c (scm_sysmissing): deprecation expired - removed.

        * error.h (scm_sysmissing): deprecation expired - removed.

        * gc.c
        (scm_init_gc): gc-thunk deprecation expired - removed.
        (scm_gc_vcell): deprecation expired - removed.
        (gc_async_thunk): scm_gc_vcell related code removed.

        * vectors.h (SCM_NVECTORP): deprecation expired - removed.

        * strings.h
        (SCM_NSTRINGP): deprecation expired - removed.
        (SCM_NRWSTRINGP): deprecation expired - removed.

        * continuations.h (SCM_SETJMPBUF): deprecation expired - removed.

        * chars.h
        (SCM_ICHRP): deprecation expired - removed.
        (SCM_ICHR): deprecation expired - removed.
        (SCM_MAKICHR): deprecation expired - removed.

        * ports.h
        (SCM_INPORTP): deprecation expired - removed.
        (SCM_OUTPORTP): deprecation expired - removed.

2001-04-25  Marius Vollmer  <mvo@zagadka.ping.de>

        * modules.c (scm_module_type): New.
        (scm_post_boot_init_modules): Initialize from Scheme value.
        (the_module, scm_current_module, scm_init_modules): the_module is
        now a C only fluid.
        (scm_current_module): Export to Scheme.
        (scm_set_current_module): Do not call out to Scheme, do all the
        work in C.  Export procedure to Scheme.  Only accept modules, `#f'
        is no longer valid as the current module.  Only set
        scm_top_level_lookup_closure_var and scm_system_transformer when
        they are not deprecated.
        (scm_module_transformer, scm_current_module_transformer): New.

        * modules.h (scm_module_index_transformer, SCM_MODULE_TRANSFORMER,
        scm_current_module_transformer, scm_module_transformer): New.

        * gh_data.c: Removed FIXME comment about gh_lookup returning
        SCM_UNDEFINED.  That's the right thing to do.

        * eval.h, eval.c (scm_system_transformer): Deprecated by moving it
        into the conditionally compiled sections.
        * eval.c (scm_primitive_eval_x, scm_primitive_eval): Use
        scm_current_module_transformer instead of scm_system_transformer.
        * init.c (start_stack): Move initialization of
        scm_system_transformer to the deprecated section.

2001-04-22  Neil Jerram  <neil@ossau.uklinux.net>

        * throw.c (scm_throw): Correct docstring.

2001-04-22  Gary Houston  <ghouston@arglist.com>

        * socket.c: attempted to improve the docstrings slightly.

        * net_db.c: remove bogus "close" declaration.
        (inet_aton declaration, scm_inet_aton, scm_inet_ntoa,
        scm_inet_netof, scm_lnaof, scm_inet_makeaddr, INADDR_ANY etc.):
        moved to socket.c.
        * net_db.h: declarations moved too.

        * socket.c (scm_htonl, scm_ntohl): use uint32_t instead of unsigned
        long.
        (ipv6_net_to_num, ipv6_num_to_net): new static procedures.
        (VALIDATE_INET6): new macro.
        (scm_inet_pton, scm_inet_ntop): new procedures, implementing
        inet-pton and inet-ntop.
        (scm_fill_sockaddr): use VALIDATE_INET6 and ipv6_num_to_net.
        (scm_addr_vector): use ipv6_net_to_num.

2001-04-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eq.c (scm_equal_p), ramap.c (scm_init_ramap):  Don't compute the
        smob number explicitly.  Use SCM_TC2SMOBNUM instead.

        * gc.c (MARK, scm_gc_sweep):  Only check for illegal heap objects
        when compiled in debug mode.

        (scm_gc_sweep):  Only call smob's free function if it is defined.

        * print.c (scm_iprin1):  No need to check for validity of smob
        type or existence of print function.

        * smob.[ch] (scm_smobs):  Made into a fixed size global array.
        Resizing will not work well with preemptive threading.

        * smob.c (scm_smob_print):  Don't use SCM_CDR to access smob data.

        (scm_make_smob_type):  Extracted initialization of smob
        descriptors to scm_smob_prehistory.  Don't use scm_numsmob outside
        of the critical section.

        (scm_smob_prehistory):  Initialize all smob descriptors.  By
        default, don't assign a smob free function:  Most smob types don't
        need one.

        * smob.h (SMOBH, SCM_SMOB_H):  Renamed SMOBH to SCM_SMOB_H.

2001-04-21  Gary Houston  <ghouston@arglist.com>

        * socket.c (FLIP_NET_HOST_128): new macro.
        (scm_fill_sockaddr): use new macro.
        (scm_addr_vector): completed IPv6 address support.  added const
        to the address parameter.

2001-04-20  Gary Houston  <ghouston@arglist.com>

        * socket.c (scm_fill_sockaddr): call htons for sin6_port.
        Don't assign sin6_scope_id in structure unless HAVE_SIN6_SCOPE_ID
        is defined.
        (scm_addr_vector): use a switch instead of multiple if statements.
        Add support for IPv6 (incomplete) .
        MAX_ADDR_SIZE: increase to size of struct sockaddr_in6 if needed.

2001-04-20  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * struct.c (scm_free_structs):  Only pairs may be accessed with
        SCM_C[AD]R.

2001-04-19  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * unif.h (SCM_ARRAY_CONTIGUOUS): Reintroduced as deprecated.

        * __scm.h (SCM_WTA_DISPATCH_0, SCM_WTA_DISPATCH_1,
        SCM_WTA_DISPATCH_2, SCM_WTA_DISPATCH_n): Inserted required
        parentheses in order to get the correct associativity.

2001-04-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * unif.c (scm_array_to_list):  Added missing handling of arrays of
        bytes.  Thanks to Masao Uebayashi for the bug report.

2001-04-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * debug.c (scm_procedure_source):  Use SCM_CLOSURE_FORMALS more
        consistently.

2001-04-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * procs.h (SCM_CLOSURE_FORMALS):  New macro.

        * debug.c (scm_procedure_source), eval.c (scm_badformalsp,
        SCM_CEVAL, SCM_APPLY), goops.c (get_slot_value, set_slot_value),
        procprop.c (scm_i_procedure_arity), sort.c (closureless):  Use
        SCM_CLOSURE_FORMALS.

        * eval.c (scm_badformalsp, SCM_CEVAL), procprop.c
        (scm_i_procedure_arity):  Prefer stronger predicates like
        SCM_NULLP or SCM_FALSEP over SCM_IMP.

        * macros.c (macro_print):  Extracted macro printing code from
        print.c and simplified it.

        (scm_macro_type):  Use SCM_MACRO_TYPE;

        (scm_init_macros):  Use macro_print for printing macros.

        * print.c (scm_print_opts):  Improved option documentation.

        (scm_iprin1):  Extracted printing of macros to macros.c.
        Simplified printing of ordinary closures.

        * procs.c (scm_thunk_p):  Fixed handling of closures.  Thanks to
        Martin Grabmueller for the bug report.

2001-04-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        This patch eliminates some further applications of SCM_C[AD]R to
        non pair cells.

        * gc.h (SCM_SETAND_CAR, SCM_SETOR_CAR):  Deprecated.  These have
        never been applied to real pairs.

        * srcprop.h (SCM_SOURCE_PROPERTY_FLAG_BREAK):  Added.

        (SRCPROPBRK):  Use SCM_SOURCE_PROPERTY_FLAG_BREAK.

        * unif.h (SCM_ARRAY_CONTIGUOUS, SCM_ARRAY_FLAG_CONTIGUOUS,
        SCM_ARRAY_CONTP):  Renamed SCM_ARRAY_CONTIGUOUS to
        SCM_ARRAY_FLAG_CONTIGUOUS and use it.

        (SCM_SET_ARRAY_CONTIGUOUS_FLAG, SCM_CLR_ARRAY_CONTIGUOUS_FLAG):
        Added.

        * srcprop.h (SRCPROPH), unif.h (UNIFH):  Renamed to
        SCM_SOURCE_PROPERTIES_H and SCM_UNIFORM_VECTORS_H, respectively.

        * srcprop.h (SETSRCPROPBRK, CLEARSRCPROPBRK), unif.c
        (scm_dimensions_to_uniform_array, scm_ra_set_contp):  Don't use
        SCM_SET{AND,OR}_CAR.

2001-04-17  Gary Houston  <ghouston@arglist.com>

        * some initial support for IPv6:

        * socket.c (scm_fill_sockaddr): improve the argument validation.
        don't allocate memory until all args are checked.  instead of
        unconditional memset of soka, try setting sin_len to 0 if
        SIN_LEN is defined.  add support for AF_INET6.  define FUNC_NAME.
        (scm_socket, scm_connect): extend docstrings for IPv6.
        (scm_init_socket): intern AF_INET6 and PF_INET6.

2001-04-17  Niibe Yutaka  <gniibe@m17n.org>

        * srcprop.c (scm_make_srcprops): Added SCM_ALLOW_INTS which
        matches SCM_DEFER_INTS at the beginning of the function.

        * mallocs.c (scm_malloc_obj): Remove un-matched SCM_ALLOW_INTS.

        * gc.c (scm_igc): Unconditionally call
        SCM_CRITICAL_SECTION_START/END.

        * fluids.c (next_fluid_num): Unconditionally call
        SCM_CRITICAL_SECTION_START/END.
        (s_scm_make_fluid): Remove un-matched SCM_DEFER_INTS.

        * coop-defs.h (SCM_THREAD_DEFER, SCM_THREAD_ALLOW,
        SCM_THREAD_REDEFER, SCM_THREAD_REALLOW_1, SCM_THREAD_REALLOW_2):
        Removed.

        * __scm.h (SCM_CRITICAL_SECTION_START, SCM_CRITICAL_SECTION_END):
        Defined as nothing for the case of !defined(USE_THREADS).
        (SCM_THREAD_DEFER, SCM_THREAD_ALLOW, SCM_THREAD_REDEFER):
        Removed.
        (<stdio.h>): Include when (SCM_DEBUG_INTERRUPTS == 1).
        (SCM_CHECK_NOT_DISABLED, SCM_CHECK_NOT_ENABLED): Print FILE and
        LINE.
        (SCM_DEFER_INTS, SCM_ALLOW_INTS_ONLY, SCM_ALLOW_INTS,
        SCM_REDEFER_INTS, SCM_REALLOW_INTS): Don't use
        SCM_THREAD_DEFER/SCM_THREAD_ALLOW.  Instead, use
        SCM_CRITICAL_SECTION_START/END.
        (SCM_REALLOW_INTS: Bug fix.  Don't call
        SCM_THREAD_SWITCHING_CODE.
        (SCM_TICK): Don't use SCM_DEFER_INTS/SCM_ALLOW_INTS.  Instead, use
        SCM_THREAD_SWITCHING_CODE directly.
        (SCM_ENTER_A_SECTION): Unconditionally use
        SCM_CRITICAL_SECTION_START/END. (was:
        SCM_DEFER_INTS/SCM_ALLOW_INTS when SCM_POSIX_THREADS defined).

2001-04-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h (SCM_CAREFUL_INTS, SCM_DEBUG_INTERRUPTS):  Replaced the
        macro SCM_CAREFUL_INTS by the macro SCM_DEBUG_INTERRUPTS and
        allowed to explicitly set this macro via the CFLAGS variable
        during make.

        * fluids.c (next_fluid_num), gc.c (scm_igc), coop-defs.h
        (SCM_THREAD_CRITICAL_SECTION_START,
        SCM_THREAD_CRITICAL_SECTION_END):  Renamed
        SCM_THREAD_CRITICAL_SECTION_START/END to
        SCM_CRITICAL_SECTION_START/END.

2001-04-11  Keisuke Nishida  <kxn30@po.cwru.edu>

        * debug-malloc.c (grow, scm_debug_malloc_prehistory): Use memset
        instead of bzero.

        * coop.c, iselect.c (FD_ZERO_N): Unconditionally use memset.
        (MISSING_BZERO_DECL): Remove the declaration.

        Thanks to NIIBE Yutaka.

2001-04-10  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * init.c, goops.c, goops.h: Reverted change of 2001-03-29.  (The
        goops module should be registered in order to work for an
        application which uses libguile statically linked.)

2001-04-10  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.[ch] (scm_num2long, scm_num2long_long,
        scm_num2ulong_long, scm_num2ulong):  Argument position is an
        unsigned integer.

        * environments.c (eval_environment_folder,
        import_environment_folder), gh_data.c (gh_scm2longs,
        gh_scm2floats, gh_scm2doubles):  Distinguish between 0 and NULL
        for integers and pointers, respectively.

        * gh_data.c (gh_scm2ulong, gh_scm2long, gh_scm2int), socket.c
        (scm_fill_sockaddr), unif.c (scm_array_set_x), validate.h
        (SCM_NUM2ULONG, SCM_NUM2LONG, SCM_NUM2LONG_DEF,
        SCM_NUM2LONG_LONG):  Don't pass argument positions as pointers.

        * filesys.c (scm_open_fdes, scm_open), net_db (scm_inet_ntoa,
        scm_inet_netof, scm_lnaof, scm_gethost, scm_getproto), posix.c
        (scm_utime), ramap.c (scm_array_fill_int), scmsigs.c
        (scm_sigaction), socket.c (scm_htonl, scm_ntohl, scm_sendto),
        stime.c (scm_localtime, scm_gmtime), struct.c (scm_struct_set_x),
        validate.h (SCM_VALIDATE_LONG_COPY):  Whitespace fixes.

2001-04-09  Neil Jerram  <neil@ossau.uklinux.net>

        * strings.c (scm_read_only_string_p): Update docstring to reflect
        current (non-)usage of "read only" strings.
        (scm_make_shared_substring): Clarify docstring by changing
        "semantics" to "arguments".

2001-04-06  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * hooks.c (scm_make_hook, scm_make_hook_with_name),
        (scm_hook_p, scm_hook_empty_p, scm_run_hook): Docstring
        improvements.

2001-04-03  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        The following changes make the documentation more consistent.

        * rdelim.c (scm_write_line), posix.c (scm_utime), ports.c
        (scm_seek), net_db.c (scm_inet_aton, scm_inet_ntoa),
        (scm_inet_netof, scm_lnaof, scm_inet_makeaddr), ioext.c
        (scm_ftell): Changed @smalllisp ... @end smalllisp to @lisp
        ... @end lisp.

        * vports.c (scm_make_soft_port), version.c (scm_version), unif.c
        (scm_array_dimensions, scm_make_shared_array),
        (scm_transpose_array, scm_enclose_array, scm_bit_count_star),
        throw.c (scm_catch), struct.c (scm_make_vtable_vtable), strop.c
        (scm_string_rindex, scm_string_index, scm_substring_fill_x),
        (scm_string_null_p), strings.c (scm_read_only_string_p), root.c
        (scm_call_with_dynamic_root), ramap.c (scm_array_index_map_x),
        posix.c (scm_mknod), numbers.c (scm_logtest, scm_logbit_p),
        macros.c (scm_makmmacro), list.c (scm_append), environments.c
        (scm_environment_fold), dynwind.c (s_scm_dynamic_wind): Changed
        @example ... @end example to @lisp ... @end lisp.

        * weaks.c (scm_weak_vector): Corrected docstring.

        * hashtab.c (scm_hashq_ref, scm_hashq_set_x, scm_hashq_remove_x),
        (scm_hashv_ref, scm_hashv_set_x, scm_hashv_remove_x),
        (scm_hash_ref, scm_hash_set_x, scm_hash_remove_x, scm_hashx_ref),
        (scm_hashx_set_x, scm_hashx_get_handle),
        (scm_hashx_create_handle_x), regex-posix.c (scm_make_regexp),
        (scm_regexp_exec, scm_regexp_p), numbers.c (scm_logtest),
        vectors.c (scm_vector_fill_x), strings.c
        (scm_make_shared_substring), symbols.c (scm_string_to_symbol),
        objprop.c (scm_set_object_properties_x):
        (scm_set_object_property_x), throw.c (scm_catch, scm_lazy_catch),
        strports.c (scm_call_with_input_string), ports.c
        (scm_truncate_file), ioext.c (scm_ftell), ports.c (scm_seek),
        list.c (scm_append_x), dynwind.c (scm_dynamic_wind), error.c
        (scm_error_scm), vports.c (scm_make_soft_port), weaks.c
        (scm_make_weak_vector,scm_weak_vector_p),
        (scm_make_weak_key_hash_table, scm_make_weak_value_hash_table),
        (scm_make_doubly_weak_hash_table, scm_weak_key_hash_table_p),
        (scm_weak_value_hash_table_p, scm_doubly_weak_hash_table_p),
        macros.c (scm_macro_type), dynl.c (scm_dynamic_link),
        (scm_dynamic_unlink, scm_dynamic_call, scm_dynamic_args_call):
        Made parameter names match documentation by renaming parameters
        and/or fixing docstrings.

        * numbers.c (scm_ash): Corrected Texinfo markup.

        * strop.c (scm_string_index, scm_string_rindex),
        (scm_substring_fill_x, scm_string_null_p): Removed `qdocs'.

        * vports.c (scm_make_soft_port), unif.c
        (scm_uniform_vector_length, scm_array_p, scm_array_rank),
        (scm_dimensions_to_uniform_array, scm_transpose_array),
        (scm_array_in_bounds_p, scm_uniform_vector_ref),
        (scm_bit_count, scm_bit_position, scm_bit_count_star),
        (scm_array_to_list, scm_list_to_uniform_array),
        (scm_array_prototype, symbols.c (scm_string_to_symbol), strports.c
        (scm_open_input_string, scm_open_output_string),
        (scm_get_output_string), strop.c (scm_string_copy),
        (scm_string_fill_x), strings.c (scm_string_p, scm_string), stime.c
        (scm_get_internal_real_time, scm_times),
        (scm_get_internal_run_time, scm_current_time, scm_gettimeofday),
        (scm_localtime, scm_gmtime), socket.c (scm_htons, scm_ntohs),
        (scm_htonl, scm_ntohl, scm_socket, scm_socketpair),
        (scm_getsockopt, scm_getsockname, scm_getpeername, scm_recvfrom),
        simpos.c (scm_system), random.c (scm_random_uniform),
        (scm_random_normal, scm_random_exp), ramap.c
        (scm_array_equal_p), posix.c (scm_pipe, scm_getgroups),
        (scm_status_exit_val, scm_status_term_sig, scm_status_stop_sig),
        (scm_getppid, scm_getuid, scm_getgid, scm_geteuid, scm_getegid),
        (scm_getpgrp, scm_ttyname, scm_ctermid, scm_tcgetpgrp, scm_uname),
        (scm_environ, scm_tmpnam, scm_mkstemp, scm_access, scm_getpid),
        (scm_setlocale), ports.c (scm_char_ready_p, scm_drain_input),
        (scm_pt_size, scm_pt_member, scm_port_revealed, scm_port_mode),
        (scm_close_port, scm_input_port_p, scm_output_port_p, scm_port_p),
        (scm_port_closed_p, scm_eof_object_p, scm_read_char),
        (scm_peek_char), pairs.c (scm_pair_p, scm_cons), numbers.c
        (scm_logand, scm_logior, scm_logxor, scm_lognot),
        (scm_integer_expt, scm_bit_extract, scm_logcount),
        (scm_integer_length, scm_string_to_number, scm_inexact_to_exact),
        net_db.c (scm_inet_netof, scm_lnaof), modules.c
        (scm_interaction_environment), macros.c (scm_makacro),
        (scm_makmacro, scm_makmmacro), keywords.c (scm_keyword_p), ioext.c
        (scm_ftell, scm_dup_to_fdes, scm_fileno, scm_isatty_p),
        (scm_fdopen, scm_fdes_to_ports), gc.c (scm_gc_stats), fluids.c
        (scm_fluid_ref), filesys.c (scm_open_fdes),
        (scm_stat, scm_directory_stream_p, scm_getcwd, scm_readlink):
        Docstring correction: `Returns' -> `Return'

        * gc.c (scm_set_debug_cell_accesses_x):
        (s_scm_gc_set_debug_check_freelist_x):
        * fluids.c (scm_fluid_p): Added texinfo markup.

        * error.c (scm_strerror): Made docstring more precise.

        * vectors.c (scm_vector_p, scm_vector, scm_make_vector),
        (scm_vector_to_list, _scm_vector_fill_x), symbols.c
        (scm_symbol_p, scm_symbol_to_string), strorder.c
        (scm_string_equal_p, scm_string_ci_equal_p, scm_string_less_p),
        (scm_string_leq_p, scm_string_gr_p, scm_string_geq_p),
        (scm_string_ci_less_p, scm_string_ci_leq_p, scm_string_ci_gr_p):
        (scm_string_ci_geq_p), strop.c (scm_string_copy),
        (scm_string_fill_x): Removed `(r5rs)' from docstrings.

2001-04-01  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (MARK):  Re-introduce a cheap sanity test for non debug
        mode, as suggested by Michael Livshin.

2001-03-31  Michael Livshin  <mlivshin@bigfoot.com>

        * backtrace.c (display_backtrace_body): since the `print_state'
        variable is not used (instead its data field is used directly as
        `pstate'), protect it from the hungry compiler optimizations.
        thanks to Bill Schottstaedt for the report.

2001-03-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.[ch] (scm_tc16_allocated):  New type tag for allocated cells.
        It is only defined and used if guile is compiled with
        SCM_DEBUG_CELL_ACCESSES set to true.  It's purpose is, to never
        let cells with a free_cell type tag be visible outside of the
        garbage collector when in debug mode.

        * gc.c (scm_debug_cell_accesses_p):  Set to true as default.

        (scm_assert_cell_valid):  Use a local static variable to avoid
        recursion.

        (MARK):  Only check for rogue cell pointers in debug mode.  Use
        scm_cellp for this purpose and place all checks for rogue pointers
        into that function.  Further, since due to conservative scanning
        we may encounter free cells during marking, don't use the standard
        cell type accessor macro to determine the cell type.

        (scm_cellp):  Check if the cell pointer actually points into a
        card header.

        (scm_init_gc):  Initalize scm_tc16_allocated.

        * gc.h (GCH):  Renamed to SCM_GC_H.

        (SCM_VALIDATE_CELL):  Enclose the expression in brackets.  This
        might be unnecessary, but I feel better this way :-)

        (SCM_GC_CELL_TYPE):  New macro.

        (SCM_SETAND_CDR, SCM_SETOR_CDR):  Deprecated.  These are not used
        in guile, and it is unlikely that they will be applied to real
        pairs anyway.

        (SCM_SET_FREE_CELL_TYPE):  Removed.  It was not used.

        (SCM_GC_SET_ALLOCATED):  New macro.  Only non-empty if guile is
        compiled with SCM_DEBUG_CELL_ACCESSES set to true.

        (SCM_NEWCELL, SCM_NEWCELL2):  Use of SCM_GC_SET_ALLOCATED will
        make sure that in debug mode no free cell will ever be visible
        outside of the garbage collector.

2001-03-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * async.c (scm_asyncs_pending):  Don't use != to compare SCM
        values.

        * async.c (scm_system_async), variable.c (scm_make_variable,
        scm_make_undefined_variable):  Use scm_cons to create a pair.

        * debug.c (scm_reverse_lookup):  Perform proper type checking.
        Remove suspicious use of SCM_SLOPPY_CONSP.

        * eq.c (scm_equal_p), tags.h (SCM_ECONSP):  Use SCM_CONSP instead
        of SCM_SLOPPY_CONSP.  A sane compiler should be able to perform
        the corresponding optimization.

        * eval.c (iqq):  Use proper type check.

        (scm_m_expand_body):  Remove redundant type checks.

        (promise_print):  Don't access promise cells as pairs.

        * eval.c (EVALCAR, iqq, scm_m_expand_body, scm_eval_args,
        scm_deval_args SCM_CEVAL), guardians.c (scm_guard), hashtab.c
        (scm_internal_hash_fold), print.c (scm_iprlist):  Use !SCM_CELLP
        for SCM_NCELLP, !SCM_CONSP for SCM_NCONSP, !SCM_IMP for SCM_NIMP,
        !SCM_FALSEP for SCM_NFALSEP, !SCM_NULLP for SCM_NNULLP

        * eval.c (scm_m_define, scm_macroexp, SCM_CEVAL), print.c
        (scm_iprin1):  Use new macro predicate and accessors.

        * eval.h (scm_tc16_macro):  Removed declaration.  It is declared
        in macros.h.

        * eval.h (EVALH), macros.h (MACROSH), ports.h (PORTSH), procs.h
        (PROCSH), tags.h (TAGSH), variable.h (VARIABLEH):  Renamed to
        SCM_EVAL_H, SCM_MACROS_H, SCM_PORTS_H, SCM_PROCS_H, SCM_TAGS_H and
        SCM_VARIABLE_H.  Even the macros that are used to inhibit
        including a header file twice should be in the SCM_ namespace.

        * fluids.c (scm_swap_fluids, scm_swap_fluids_reverse),
        properties.c (scm_primitive_property_ref,
        scm_primitive_property_del_x):  Prefer stronger predicates like
        SCM_NULLP or SCM_FALSEP over SCM_IMP.

        * gc.c (MARK):  Use proper macros to access procedure-with-setter
        cell elements and closure cell elements.

        (gc_sweep_freelist_finish, scm_gc_sweep, init_heap_seg):  Don't
        access free cells as pairs.

        (scm_unprotect_object):  scm_hashq_get_handle returns #f if
        no hashtab entry is found.

        * gc.c (scm_gc_sweep), ports.c (scm_close_port):  Use new macro
        SCM_CLR_PORT_OPEN_FLAG.

        * guardians.c (TCONC_IN), print.c (scm_free_print_state):  Don't
        use SCM_SET_C[AD]R for uninitialized cells.

        * hashtab.c (scm_hash_fn_get_handle):  Use SCM_VALIDATE_VECTOR.
        If the hashtable has no slots, return #f instead of '().  This
        unifies the return value with most assoc-functions.

        (scm_hash_fn_ref):  Use proper type check.

        (scm_hashq_get_handle, scm_hashv_get_handle, scm_hash_get_handle):
        Removed references to non-existing functions from documentation.

        * keywords.c (scm_keyword_dash_symbol):  Use proper macros to
        access keyword cell elements.

        * macros.h (SCM_MACROP, SCM_MACRO_TYPE, SCM_MACRO_CODE):  New
        macros.

        * ports.h (SCM_CLR_PORT_OPEN_FLAG):  New macro.

        * print.c (scm_iprlist):  Added comment.  Improved loop
        conditions.

        * procs.h (SCM_ENV, SCM_SETENV):  Don't access closure cells as
        pairs.

        * smob.c (scm_markcdr):  Don't access smob cells as pairs.

        * tags.h (SCM_SLOPPY_CONSP, SCM_SLOPPY_NCONSP):  Deprecated.

        * throw.c (ACTIVATEJB, DEACTIVATEJB):  Don't access jump buffer
        cells as pairs.

        * variable.c (variable_print, variable_equalp, scm_variable_ref,
        scm_variable_set_x):  Use proper macros to access variable cell
        elements.

        (scm_variable_bound_p):  Don't use SCM_NEGATE_BOOL.

        * variable.h (SCM_VARVCELL):  Don't access variable cells as
        pairs.

        * vectors.c (scm_vector), weaks.c (scm_weak_vector):  Simplified,
        added FIXME comment, removed register specifier.

2001-03-29  Keisuke Nishida  <kxn30@po.cwru.edu>

        * goops.c, goops.h (scm_init_oop_goops_goopscore_module): Deprecated.
        * init.c (scm_init_guile_1): Don't init goopscore module.

2001-03-27  Marius Vollmer  <mvo@zagadka.ping.de>

        * eval.c (SCM_APPLY): Check that arg1 is bound for scm_tc7_cxr.

2001-03-27  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * strop.c (scm_string_to_list): Fixed docstring markup.
        (scm_string_upcase_x, scm_string_upcase, scm_string_downcase_x),
        (scm_string_downcase, scm_string_capitalize_x),
        (scm_string_capitalize): Rewrote and corrected docstrings.
        (scm_string_ci_to_symbol): Made docstring more explicit.

2001-03-27  Marius Vollmer  <mvo@zagadka.ping.de>

        * values.h (scm_values_vtable, SCM_VALUESP): Moved here so that
        eval.c can use it.
        (scm_call_with_values): Removed.
        * values.c (values_vtable, scm_values_vtable): Added "scm_" prefix
        so that it can be exported.
        (scm_call_with_values): Removed.

        * tags.h (SCM_IM_CALL_WITH_VALUES): New isym.
        * eval.c: Include "libguile/values.h"
        (scm_m_at_call_with_values, scm_sym_at_call_with_values):
        New.
        (unmemocopy, scm_ceval, scm_deval): Handle new isym.
        * eval.h (scm_sym_at_call_with_values, scm_m_at_call_with_values):
        New delcarations to support above change.

        * eval.c (scm_primitive_eval_x, scm_primitive_eval): Fix syntax
        errors with last change.

2001-03-25  Marius Vollmer  <mvo@zagadka.ping.de>

        * eval.c (scm_primitive_eval_x, scm_primitive_eval, scm_i_eval_x,
        scm_i_eval): Moved the application of the system transformer from
        scm_i_eval to scm_primitive_eval.

2001-03-23  Neil Jerram  <neil@ossau.uklinux.net>

        * guile-snarf.awk.in: Substitute "\\" with "\" in .doc output.

        * strop.c (scm_string_index): Fix docstring line break
        regression.

        * list.c (scm_cons_star): Fix docstring typo.

2001-03-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_init_storage), gdbint.c (scm_init_gdbint), numbers.c
        (big2str), ports.c (scm_drain_input), read.c (scm_read,
        scm_grow_tok_buf), strings.c (scm_string, scm_makfromstr,
        scm_make_string, scm_string_append), strports.c (st_resize_port,
        scm_object_to_string), unif.c (scm_make_uve):  Replace calls to
        scm_makstr with calls to scm_allocate_string.

        * strings.[ch] (scm_allocate_string):  New function.

        * strings.[ch] (scm_makstr):  Deprecated.

2001-03-18  Gary Houston  <ghouston@arglist.com>

        * posix.c (scm_tmpnam): check that return value from tmpnam is not
        NULL.  rewrote the docstring.
        (scm_mkstemp): new procedure implementing "mkstemp!".
        * posix.h: declare scm_mkstemp.

        * net_db.c: declare h_errno if configure didn't define HAVE_H_ERRNO.
        normally it would be found in netdb.h.

2001-03-17  Gary Houston  <ghouston@arglist.com>

        * sort.c (scm_sort): move sortvec variable to avoid a compiler
        warning when HAVE_ARRAYS is not defined.  move len too.

        * Makefile.am (DOT_X_FILES): remove net_db.x, posix.x, socket.x.
        (EXTRA_DOT_X_FILES): let configure set the value.
        (DOT_DOC_FILES): remove net_db.doc, posix.doc, socket.doc.

        * gc.c (scm_must_malloc): changed the comment explaining when
        scm_must variants of malloc/free etc., should be used, based on
        explanation from Dirk Herrmann.
        * fports.c (scm_fport_buffer_add): use FUNC_NAME instead of a local
        string with procedure name.  use scm_must_malloc instead of malloc.
        (scm_setvbuf, scm_fdes_to_port, fport_close): use scm_must variants
        of malloc/free.
        * ports.c (scm_add_to_port_table, scm_remove_from_port_table,
        scm_ungetc): use scm_must variants of malloc/realloc/free.
        (scm_add_to_port_table, scm_ungetc): define FUNC_NAME.

2001-03-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h (SCM_ASSERT, SCM_WTA_DISPATCH_0, SCM_WTA_DISPATCH_1,
        SCM_WTA_DISPATCH_2, SCM_WTA_DISPATCH_n):  Don't call scm_wta, call
        scm_wrong_type_arg instead.

        (SCM_WNA):  Deprecated.

        * error.[ch] (scm_wta):  Deprecated.

        * numbers.c (s_i_log):  Minor comment fix.

        * read.c (scm_lreadr), unif.c (scm_aind, scm_shap2ra,
        scm_make_shared_array, scm_transpose_array, scm_enclose_array,
        scm_array_in_bounds_p): Don't use SCM_ASSERT to check for
        wrong-num-args or misc errors.

        * unif.c (scm_make_shared_array, scm_transpose_array,
        scm_enclose_array, scm_array_in_bounds_p, scm_array_set_x):
        Validate the rest argument (note: this is only done when guile is
        built with SCM_DEBUG_REST_ARGUMENT=1)

        (scm_array_in_bounds_p, scm_uniform_vector_ref, scm_array_set_x):
        Replace calls to scm_wrong_num_args by SCM_WRONG_NUM_ARGS.

        * validate.h (SCM_FUNC_NAME, SCM_VALIDATE_NUMBER_COPY,
        SCM_VALIDATE_NUMBER_DEF_COPY):  Deprecated.

2001-03-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * validate.h (SCM_WRONG_NUM_ARGS):  Call scm_error_num_args_subr
        instead of scm_wrong_num_args.

        * coop-threads.c:  Don't include libguile/strings.h.  (Was only
        needed for former implementation of SCM_WRONG_NUM_ARGS.)

        * debug.c (scm_m_start_stack):  Don't use SCM_ASSERT to check for
        wrong-num-args errors.

2001-03-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * error.[ch] (scm_error_num_args_subr):  New function.

2001-03-16  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * list.c (scm_list, scm_cons_star, scm_null_p, scm_list_p),
        (scm_length, scm_append, scm_reverse, scm_list_ref),
        (scm_memq, scm_memv, scm_member, scm_delv_x, scm_delete_x),
        (scm_delq, scm_delv, scm_delete, scm_delq1_x, scm_delv1_x),
        (scm_delete1_x), gc.c (scm_map_free_list),
        (scm_free_list_length), hash.c (scm_hashq, scm_hashv),
        (scm_hash), hashtab.c (scm_hashq_ref, scm_hashq_set_x),
        (scm_hashq_remove_x, scm_hashv_ref, scm_hashv_set_x),
        (scm_hashv_remove_x, scm_hash_ref, scm_hash_set_x),
        (scm_hash_remove_x), ports.c (scm_pt_size, scm_pt_member), print.c
        (scm_current_pstate), scmsigs.c (scm_usleep), goops.c
        (scm_get_keyword, scm_sys_compute_slots): Added texinfo markup.

        * weaks.c (scm_weak_vector_p, scm_weak_key_hash_table_p),
        (scm_weak_value_hash_table_p, scm_doubly_weak_hash_table_p),
        rdelim.c (scm_read_delimited_x), strop.c (scm_string_index),
        symbols.c (scm_symbol_interned_p), numbers.c
        (scm_string_to_number), ports.c (scm_port_p): Corrected texinfo
        markup.

2001-03-16  Keisuke Nishida  <kxn30@po.cwru.edu>

        * snarf.h (SCM_CONST_LONG): Deprecated.
        * tag.c (CONST_INUM): New macro.  Use it to define scm_utag_*.

2001-03-15  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * numbers.c (scm_num2ulong): Check that a bignum is positive
        before looking at the magnitude.  Correctly check for overflow
        during conversion.
        (scm_num2long_long): Likewise.
        (scm_num2ulong_long): New.
        (ULONG_LONG_MAX): Define if not already defined.
        * numbers.h: (scm_num2ulong_long): New prototype.

2001-03-15  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * validate.h (SCM_VALIDATE_OPOUTSTRPORT): New macro.

        * strports.h (SCM_STRPORTP, SCM_OPSTRPORTP, SCM_OPINSTRPORTP),
        (SCM_OPOUTSTRPORTP): New predicate macros.
        (scm_open_input_string, scm_open_output_string),
        (scm_get_output_string): New prototypes.

        * strports.c (scm_open_input_string, scm_open_output_string),
        (scm_get_output_string): New procedures (SRFI-6 compliant).
        Made scm_tc16_strport non-static.

2001-03-15  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * macros.h (SCM_ASSYNT):  Removed unused object argument from
        signature.

        * eval.c (scm_m_body, scm_m_quote, scm_m_begin, scm_m_if,
        scm_m_set_x, scm_m_and, scm_m_or, scm_m_case, scm_m_cond,
        scm_m_letstar, scm_m_do, scm_m_quasiquote, scm_m_delay,
        scm_m_define, scm_m_letrec1, scm_m_letrec, scm_m_let, scm_m_apply,
        scm_m_cont, scm_m_nil_cond, scm_m_nil_ify, scm_m_t_ify,
        scm_m_0_cond, scm_m_0_ify, scm_m_1_ify, scm_m_atfop, scm_m_atbind,
        scm_m_expand_body), evalext.c (scm_m_generalized_set_x,
        scm_m_undefine), goops.c (scm_m_atslot_ref, scm_m_atslot_set_x,
        scm_m_atdispatch):  Removed unused object argument from call to
        SCM_ASSYNT.

2001-03-15  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gh.h/gh_data.c (gh_ints2scm):  Changed the signature to use a
        const int* to reflect that the input array of integers remains
        unchanged.  Thanks to Brett Viren for the hint.

2001-03-14  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * gh_data.c (gh_scm2chars, gh_scm2shorts, gh_scm2longs),
        (gh_scm2floats, gh_scm2doubles): Check for malloc() returning NULL
        in various places.
        (gh_scm2newstr, gh_symbol2newstr): Change call to
        scm_must_malloc() to malloc(), because user-free()able memory is
        allocated.

        * gc.c: Added declaration of `scm_debug_check_freelist'.

2001-03-13  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * ports.c (scm_port_mode): Changed `mode' array size to 4.

2001-03-12  Keisuke Nishida  <kxn30@po.cwru.edu>

        * strports.c (scm_object_to_string): New procedure.
        (scm_strprint_obj): Deprecated.
        * strports.h: Reflect the changes.

2001-03-12  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * goops.h (SCM_VALIDATE_PUREGENERIC):  New macro.

        * goops.c (scm_m_atslot_ref, scm_m_atslot_set_x,
        scm_m_atdispatch):  Provide definitions for FUNC_NAME.  Don't use
        SCM_ASSYNT to check for correct argument types.  Either use some
        SCM_VALIDATE_* macro or an explicit test.

        (scm_make_foreign_object):  Don't use SCM_ASSERT to check for
        misc-errors.

        * macros.h (SCM_ASSYNT):  On assertion failure, issue a misc-error
        instead of calling scm_wta.

2001-03-12  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * load.c (scm_primitive_load, scm_primitive_load_path),
        (scm_sys_search_load_path): Corrected docstrings (file ->
        filename).

        * eval.c (scm_force): Added texinfo markup to docstring.
        (scm_promise_p): Renamed parameter to `obj' to match docstring.

        * debug-malloc.c: Reinserted #include <stdio.h>.

2001-03-11  Keisuke Nishida  <kxn30@po.cwru.edu>

        * list.c (s_scm_reverse_x): Use SCM_VALIDATE_LIST.

        * environments.c, error.c, eval.c, filesys.c, hashtab.c, load.c,
        net_db.c, procprop.c, read.c, scmsigs.c, socket.c, struct.c:
        Use SCM_LISTn instead of scm_listify.

2001-03-10  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * _scm.h: Removed #include <errno.h>.

        * error.c, net_db.c, putenv.c, stime.c: Removed declaration of
        errno variable (can be a macro on some systems, for example when
        using linux libc with threads).

        * error.c, filesys.c, gc.c, ioext.c, iselect.c, net_db.c, ports.c,
        posix.c, print.c, putenv.c, scmsigs.c, script.c, simpos.c, smob.c,
        socket.c, srcprop.c, stime.c, strop.c, unif.c, vports.c: Added
        #include <errno.h> in these 20 out of 100 files.

2001-03-10  Gary Houston  <ghouston@arglist.com>

        * socket.c: add a definition of SUN_LEN (from glibc) for when it's
        not already defined.

2001-03-09  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * coop.c: Inserted #include <stdio.h>.

        * iselect.c: Reinserted #include <stdio.h>.

2001-03-10  Marius Vollmer  <mvo@zagadka.ping.de>

        * posix.c: Replaced `#define' of __USE_XOPEN right before
        including unistd.h with a define of _GNU_SOURCE at the very top of
        the file.

2001-03-09  Keisuke Nishida  <kxn30@po.cwru.edu>

        * alist.c, arbiters.c, async.c, backtrace.c, boolean.c, chars.c,
        continuations.c, debug-malloc.c, debug.c, dynwind.c, eq.c, eval.c,
        feature.c, filesys.h, gc_os_dep.c, gh_data.c, gh_eval.c,
        gh_funcs.c, gh_io.c, gh_list.c, gh_predicates.c, hash.c,
        hashtab.c, iselect.c, keywords.c, list.c, load.c, mallocs.c,
        net_db.c, numbers.c, objprop.c, objprop.h, options.c, pairs.c,
        print.c, procprop.c, procs.c, properties.c, ramap.c,
        regex-posix.c, root.c, scmsigs.c, simpos.c, socket.c, srcprop.c,
        stackchk.c, stacks.c, strings.c, strop.c, strorder.c, struct.c,
        symbols.c, tag.c, threads.c, variable.c, vectors.c, weaks.c:
        Remove #include <stdio.h>
        * gc.c, gdbint.c, root.c, sort.c, unif.c: Add #include <string.h>.

        * procs.c (scm_make_subr_opt): Init symcell to avoid warning.

2001-03-09  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * posix.c (scm_gethostname): Set initial name length to 256 for
        Solaris.

2001-03-09  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * posix.h (scm_crypt, scm_chroot, scm_getlogin, scm_cuserid),
        (scm_getpriority, scm_setpriority, scm_getpass, scm_flock),
        (scm_sethostname, scm_gethostname): New prototypes.

        * posix.c: Added inclusion of <crypt.h>, <sys/resource.h> and
        <sys/file.h>, if present.
        (scm_init_posix): [PRIO_PROCESS, PRIO_PGRP, PRIO_USER, LOCK_SH,
        LOCK_EX, LOCK_UN, LOCK_NB]: New variables.
        (scm_crypt, scm_chroot, scm_getlogin, scm_cuserid),
        (scm_getpriority, scm_setpriority, scm_getpass, scm_flock),
        (scm_sethostname, scm_gethostname): New procedures.

2001-03-08  Neil Jerram  <neil@ossau.uklinux.net>

        * ports.c (scm_port_column): Docstring fixes: (i) port-line arg is
        not optional (ii) "recommend" spelling correction.

2001-03-08  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * ramap.c (racp): Removed optimization which caused array copying
        to fail if the two arrays shared storage.  Re-inserted the IVDEP
        macros removed in the change of 2000-03-09.  (Don't really have a
        complete grasp of what they are for, but they seem to be necessary
        on Crays.  This needs testing!)  Thanks to Miroslav Silovic.

        * hash.c (scm_string_hash): Don't downcase characters.

2001-03-07  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * symbols.c (scm_symbols_prehistory): Changed symbol hash table
        size from 277 --> 1009.

        * symbols.c, symbols.h (scm_sys_symbols): New function GUILE_DEBUG
        function.

        * coop-threads.c: Fixed change of 2001-03-06.

        * validate.h: Code formatting.

2001-03-07  Keisuke Nishida  <kxn30@po.cwru.edu>

        * Makefile.am (*.x): Add dependency on snarf.h and guile-doc-snarf.in.
        (*.doc): Add dependency on guile-snarf.awk.in.

        * guile-snarf.awk.in: Neglect spaces at the end of
        SCM_SNARF_DOCSTRING_END.  Skip lines "# NN ..." in the
        middle of docstrings.  (To avoid the problem with gcc-2.96.)

2001-03-06  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * coop-threads.c (scm_call_with_new_thread), load.c
        (scm_primitive_load, scm_sys_search_load_path), random.c
        (scm_c_default_rstate), struct.c (scm_make_struct_layout,
        scm_struct_ref, scm_struct_set_x):  Don't use SCM_ASSERT to
        (potentially) issue a scm-misc-error or wrong-num-args error
        message.

        * load.c (scm_search_path):  Use SCM_ASSERT_TYPE to give details
        about the expected type with the wrong-type-arg error message.

        * smob.c (scm_make_smob):  Abort on misuse of smob - it indicates
        a C level bug that can't be fixed from scheme anyway.

2001-03-05  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * eval.c (scm_m_letstar): Removed check for duplicate bindings.
        Duplicate bindings are OK in a let* since a let* is semantically
        equivalent to a nested set of let:s.

2001-03-05  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * print.c (scm_print_options): Fixed texinfo in docstring.

        * net_db.c (scm_getserv, scm_getproto, scm_getnet): Return #f if
        the underlying functions getservent, getprotoent or getnetent
        return NULL instead of signalling an error.

2001-03-04  Gary Houston  <ghouston@arglist.com>

        * socket.c (scm_fill_sockaddr): don't allow buffer overflows when
        taking an unexpectedly large filename for an AF_UNIX socket from
        bind/connect/sendto (thanks to Martin Grabmueller).

        * socket.c (scm_sock_fd_to_port, SCM_SOCK_FD_TO_PORT): removed the
        former and adjusted the latter.
        (scm_socket, scm_socketpair): cosmetic changes.
        (scm_getsockopt, scm_setsockopt): declare optlen as int, not
        size_t as socklen_t substitute.  don't restrict args/return values
        to INUM: allow full range of int or size_t.
        (scm_fill_sockaddr): check arguments before allocating memory, to
        avoid leakage.  use malloc, not scm_must_malloc.
        (scm_connect, scm_bind, scm_sendto): use int, not size_t as socklen_t
        substitute.  free the sockaddr structure before throwing an error.
        (scm_init_add_buffer): procedure removed, together with its static
        buffer scm_addr_buffer, which wouldn't be thread safe.  instead,
        define a macro MAX_ADDR_SIZE and declare the buffer where needed.
        (scm_accept, scm_getpeername, scm_getsockname, scm_recvfrom,
        scm_sendto): use a local buffer instead of scm_addr_buffer.
        adjust for new SCM_SOCK_FD_TO_PORT.  use int for address size,
        not size_t.
        (scm_recvfrom): set addr->sa_family to AF_UNSPEC before the recvfrom
        call to detect whether recvfrom could be bothered to set the address.
        (scm_init_socket): don't call scm_init_addr_buffer.

2001-03-04  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * debug.c (scm_procedure_source, scm_procedure_environment),
        print.c (scm_get_print_state), ramap.c (scm_array_fill_int,
        scm_array_index_map_x), sort.c (scm_sort_x, scm_sort,
        scm_stable_sort_x, scm_stable_sort), stacks.c (scm_make_stack,
        scm_last_stack_frame), symbols.c (scm_sym2vcell, scm_sym2ovcell),
        unif.c (scm_list_to_uniform_array, scm_uniform_vector_length,
        scm_transpose_array, scm_enclose_array, scm_array_in_bounds_p,
        scm_uniform_vector_ref, scm_array_set_x, scm_uniform_array_read_x,
        scm_uniform_array_write, scm_bit_set_star_x, scm_bit_count_star,
        scm_array_to_list, scm_array_prototype), validate.h
        (SCM_VALIDATE_NUMBER_COPY):  Don't call function scm_wta, call
        scm_misc_error or scm_wrong_type_arg instead.

        * validate.h (SCM_WTA, RETURN_SCM_WTA):  Deprecated.

2001-03-04  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * goops.c, goops.h (scm_sys_pre_expand_closure_x): Removed.
        (scm_sys_tag_body): Added.

2001-03-04  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * continuations.c (continuation_apply), eval.c (scm_m_lambda,
        scm_m_letstar, scm_m_letrec1, scm_m_let, SCM_APPLY), eval.h
        (SCM_EVALIM2), evalext.c (scm_m_generalized_set_x), gc.c
        (get_bvec, MARK), goops.c (scm_primitive_generic_generic),
        options.c (scm_options), ports.c (scm_remove_from_port_table),
        ramap.c (scm_ramapc), read.c (skip_scsh_block_comment, scm_lreadr,
        scm_lreadparen, scm_lreadrecparen), script.c (script_get_octal,
        script_get_backslash, script_read_arg), unif.c (scm_cvref):  Don't
        call function scm_wta, call scm_misc_error or scm_wrong_type_arg
        instead.

2001-03-04  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * goops.c (scm_sys_pre_expand_closure_x): New procedure.

2001-03-04  Marius Vollmer  <mvo@zagadka.ping.de>

        * eval.c (scm_s_duplicate_bindings): New error message.
        (scm_m_letrec1, scm_m_letstar): Check for duplicate bindings.

2001-03-03  Marius Vollmer  <mvo@zagadka.ping.de>

        * eval.h (SCM_EVALIM2): New macro.  Use it when a
        immediate, literal constant should be evaluated.
        * eval.c (scm_s_duplicate_formals): New error message string.
        (scm_c_improper_memq): New function.
        (scm_m_lambda): Check for duplicate arguments.
        (scm_ceval, scm_deval): When executing a body: only cons a new
        toplevel environment frame when it is different from the
        existing one; use EVALCAR instead of SIDEVAL so that we can properly
        check for empty combinations; use SCM_EVALIM2 for the same reason
        in the non-toplevel loop.
        (nontoplevel_cdrxnoap, nontoplevel_cdrxbegin, nontoplevel_begin):
        New labels with the meaning of their non-"nontoplevel" partners,
        but they are used when it is known that the body is not evaluated at
        top-level.
        (scm_apply, scm_dapply): use SCM_EVALIM2 to get proper error
        reporting for empty combinations.

2001-03-02  Keisuke Nishida  <kxn30@po.cwru.edu>

        * Remove dump facilities.
        * dump.c, dump.h: Removed.
        * Makefile.am: Remove dump.c, dump.h, dump.x, dump.doc.
        * init.c: Remove #include "libguile/dump.h".
        (scm_init_guile_1): Remove scm_init_dump.
        * smob.h (scm_smob_descriptor): Remove slots: dump, undump.
        (scm_set_smob_dump, scm_set_smob_undump): Remove declaration.
        * smob.c (scm_make_smob_type): Remove initialization: dump, undump.
        (scm_set_smob_dump, scm_set_smob_undump): Removed.

        * keywords.c: Remove #include "libguile/dump.h".
        (keyword_dump, keyword_undump): Removed.
        (scm_init_keywords): Remove scm_set_smob_dump and scm_set_smob_undump.

2001-03-02  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * vectors.c (s_scm_vector_p, list->vector, scm_vector)
        (scm_vector_ref, scm_vector_set_x, scm_vector_to_list)
        (scm_vector_fill_x), strorder.c (scm_string_equal_p)
        (scm_string_ci_equal_p, scm_string_less_p, scm_string_leq_p)
        (scm_string_gr_p, scm_string_geq_p, scm_string_ci_less_p)
        (scm_string_ci_geq_p), symbols.c (scm_symbol_p)
        (scm_symbol_to_string, scm_string_to_symbol): Changed use of @t{}
        to @code{} as the texinfo manual recommends, converted the
        examples to use a @lisp{}-environment.

        * strports.c (scm_eval_string): Cleaned up the docstring.

        * struct.c (scm_struct_p, scm_struct_vtable_p): Added texinfo
        markup.

        * numbers.c (scm_exact_p, scm_odd_p, scm_even_p)
        (scm_number_to_string, scm_string_to_number, scm_number_p)
        (scm_real_p, scm_integer_p, scm_inexact_p, scm_make_rectangular)
        (scm_make_polar, scm_inexact_to_exact): Added texinfo markup.
        (scm_ash): Added texinfo markup and removed obsolete @refill.
        (scm_gr_p): Corrected comment.
        (scm_gr_p, scm_leq_p, scm_geq_p): Added texinfo markup to (future
        docstring) comments.
        (scm_positive_p, scm_less_p, scm_num_eq_p, scm_real_p)
        (scm_number_p, scm_negative_p, scm_max, scm_min, scm_sum)
        (scm_difference, scm_product, scm_divide, scm_asinh, scm_acosh)
        (scm_atanh, scm_truncate, scm_round, scm_exact_to_inexact)
        (floor, ceiling, $sqrt, $abs, $exp, $log, $sin, $cos, $tan, $asin)
        ($acos, $atan, $sinh, $cosh, $tanh, scm_real_part, scm_imag_part)
        (scm_magnitude, scm_angle, scm_abs, scm_quotient, scm_remainder)
        (scm_modulo, scm_gcd, scm_lcm): Added (future docstring) comments.

2001-02-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h (SCM_ASSERT_TYPE):  Add missing macro parameter.
        (Obviously nobody compiles with SCM_RECKLESS defined...)

        * validate.h (SCM_ASSERT_RANGE):  Use the argument number.

2001-02-23  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * ports.c, ports.h (scm_c_read, scm_c_write): New functions.

        * ports.h (SCM_READ_BUFFER_EMPTY_P): New macro.

2001-02-24  Neil Jerram  <neil@ossau.uklinux.net>

        * numbers.c (scm_two_doubles, scm_sys_expt, scm_sys_atan2,
        scm_make_polar): Rename arguments `z1' and `z2' to `x' and `y',
        since use of `z' suggests that the arguments may be complex.

        * goops.c (scm_make), numbers.c (scm_sys_expt): Fix docstring
        typos.

2001-02-23  Neil Jerram  <neil@ossau.uklinux.net>

        * dump.c (scm_binary_write, scm_binary_read), eval.c
        (scm_primitive_eval), guardians.c (scm_guardian_destroyed_p,
        scm_guardian_greedy_p, scm_make_guardian), fports.c
        (scm_file_port_p): Minor docstring fixes.

2001-02-22  Marius Vollmer  <mvo@zagadka.ping.de>

        * load.c (load): Use scm_primitive_eval_x instead of scm_i_eval_x.

        * goops.c (scm_add_method, DEFVAR): Use scm_eval instead of
        scm_i_eval.
        (make_class_from_template): Do not bother to set the current
        module around the call to DEFVAR, scm_eval takes care of that.
        (scm_init_goops): Make scm_module_goops and
        scm_goops_lookup_closure permanent objects.

        * eval.c (scm_ceval, scm_deval): When evaluating expressions on
        top level, create a fresh top-level environment for each
        expression instead of mutating the exisint frame.  This is
        important when that frame is closed over.

        * numbers.c (s_scm_logior) [SCM_DIGSTOOBIG]: Also use
        SCM_DIGSPERLONG instead of DIGSPERLONG.

2001-02-21  Marius Vollmer  <mvo@zagadka.ping.de>

        * eval.c (scm_ceval, scm_deval): Check for wrong number of args
        before applying arrow procedure in `cond' and before applying
        receiver procedure in call-with-current-continuation.
        (scm_i_eval): Do not invoke scm_copy_tree in argument in SCM_XEVAL
        macro.  The argument is expanded more than one time.

        * numbers.c (scm_logior) [SCM_DIGSTOOBIG]: Correctly use
        SCM_BIGDIG instead of BIGDIG.  Thanks to Steven G. Johnson!

2001-02-20  Marius Vollmer  <mvo@zagadka.ping.de>

        * guile-doc-snarf.in, guile-func-name-check.in: Added copyright
        notice and license.

2001-02-17  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * variable.c (scm_make_variable, scm_make_undefined_variable)
        (scm_variable_ref, scm_variable_set_x, scm_builtin_variable)
        (scm_variable_bound_p), values.c (scm_values)
        (scm_call_with_values), unif.c (scm_bit_count)
        (scm_bit_set_star_x), symbols.c (scm_gentemp)
        (scm_gensym), strings.c (scm_string_p, scm_make_string)
        (scm_read_only_string_p, scm_string_length, scm_string_ref)
        (scm_string_set_x, scm_substring, scm_string_append), stime.c
        (scm_strptime, scm_mktime), random.c (scm_seed_to_random_state)
        (scm_copy_random_state, scm_random), print.c (scm_newline)
        (scm_write_char, scm_simple_format), debug-malloc.c
        (scm_malloc_stats), environments.c (scm_environment_p)
        (scm_environment_bound_p, scm_environment_ref)
        (scm_environment_fold, scm_environment_define)
        (scm_environment_undefine, scm_environment_set_x)
        (scm_environment_cell, scm_environment_observe)
        (scm_environment_observe_weak, scm_environment_unobserve)
        (scm_make_eval_environment, scm_eval_environment_p)
        (scm_eval_environment_set_local_x, scm_eval_environment_local)
        (scm_eval_environment_imported)
        (scm_eval_environment_set_imported_x, scm_make_import_environment)
        (scm_import_environment_p, scm_import_environment_imports)
        (scm_import_environment_set_imports_x, scm_make_export_environment)
        (scm_export_environment_p, scm_export_environment_private)
        (scm_export_environment_set_private_x)
        (scm_export_environment_signature)
        (scm_export_environment_set_signature_x, scm_leaf_environment_p):
        Added texinfo markup.

        * ports.c (scm_drain_input): Lowercased argument to @var.
        (scm_current_input_port, scm_current_output_port): Filled in
        missing explanation.
        (scm_current_load_port, scm_set_current_output_port)
        (scm_set_current_error_port, scm_port_line, scm_set_port_line_x):
        Added texinfo markup.

        * arbiters.c (scm_make_arbiter, scm_try_arbiter)
        (scm_release_arbiter): Added texinfo markup to docstrings.
        Changed `Returns' to `Return'.
        (arbiter_print): Changed SCM_CDR to SCM_SMOB_DATA.

2001-02-16  Neil Jerram  <neil@ossau.uklinux.net>

        * guile-snarf.awk.in: Quote any `@'s that occur in Scheme names,
        by doubling them to `@@'.

2001-02-16  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * numbers.c (scm_lognot), random.c (scm_random,
        scm_random_normal, scm_random_solid_sphere_x,
        scm_random_hollow_sphere_x, scm_random_normal_vector_x,
        scm_random_exp), dynwind.c
        (scm_dynamic_wind): Removed unnecessary "" from docstrings.

        * goops.c (scm_sys_initialize_object, scm_instance_p,
        scm_class_name, scm_class_precedence_list, scm_class_slots,
        scm_class_environment, scm_generic_function_name,
        scm_generic_function_methods, scm_method_generic_function,
        scm_method_specializers, scm_method_procedure, scm_make_unbound,
        scm_unbound_p, scm_assert_bound, scm_at_assert_bound_ref,
        scm_sys_fast_slot_ref, scm_sys_fast_slot_set_x, scm_slot_ref,
        scm_slot_set_x, _scm_slot_bound_p, scm_slots_exists_p,
        scm_sys_allocate_instance, scm_make, scm_pure_generic_p,
        scm_class_direct_supers, scm_class_direct_slots,
        scm_class_direct_subclasses, scm_class_direct_methods,
        scm_accessor_method_slot_definition, scm_sys_goops_loaded),
        debug.c (scm_with_traps, scm_memoized_p, scm_make_gloc,
        scm_gloc_p, scm_make_iloc, scm_iloc_p, scm_memcons,
        scm_mem_to_proc, scm_proc_to_mem, scm_unmemoize,
        scm_memoized_environment, scm_procedure_name,
        scm_procedure_source, scm_procedure_environment, scm_debug_hang),
        objects.c
        (scm_class_of, scm_entity_p, scm_operator_p,
        scm_set_object_procedure_x, scm_object_procedure,
        scm_make_class_object), hooks.c (scm_make_hook_with_name,
        scm_make_hook, scm_hook_p, scm_hook_empty_p, scm_add_hook_x,
        scm_remove_hook_x, scm_reset_hook_x, scm_run_hook,
        scm_hook_to_list), lang.c
        (scm_nil_cons, scm_nil_car, scm_nil_cdr, scm_null, scm_nil_eq),
        numbers.c (scm_sys_expt, scm_sys_atan2), print.c
        (scm_print_options, scm_port_with_print_state,
        scm_get_print_state), procs.c (scm_make_cclo, scm_procedure_p,
        scm_closure_p, scm_thunk_p, scm_procedure_with_setter_p,
        scm_make_procedure_with_setter, scm_procedure), throw.c
        (scm_lazy_catch), modules.c (scm_standard_eval_closure), load.c
        (scm_parse_path, scm_search_path), stacks.c (scm_make_stack,
        scm_stack_ref, scm_stack_length, scm_frame_p,
        scm_last_stack_frame, scm_frame_number, scm_frame_source,
        scm_frame_procedure, scm_frame_arguments, scm_frame_previous,
        scm_frame_next, scm_frame_real_p, scm_frame_procedure_p,
        scm_frame_evaluating_args_p, scm_frame_overflow_p), filesys.c
        (scm_dirname, scm_basename), dynwind.c
        (scm_wind_chain), read.c (scm_read_options, scm_read,
        scm_read_hash_extend), gc.c
        (scm_unhash_name), eval.c (scm_eval_options_interface,
        scm_evaluator_traps, s_scm_nconc2last), backtrace.c
        (scm_display_error, scm_set_print_params_x,
        scm_display_application, scm_display_backtrace, scm_backtrace),
        async.c (scm_async, scm_system_async, scm_async_mark,
        scm_system_async_mark, scm_run_asyncs, scm_noop,
        scm_set_tick_rate, scm_set_switch_rate, scm_unmask_signals,
        scm_mask_signals): Added docstrings.

2001-02-15  Keisuke Nishida  <kxn30@po.cwru.edu>

        * dump.c (scm_undump): Use SCM_CARLOC/SCM_CDRLOC to obtain the
        address of car/cdr.  (Thanks to Dirk Herrmann)
        Use scm_sizet to obtain the length of strings.
        (Thanks to Matthias Koeppe)

2001-02-15  Marius Vollmer  <mvo@zagadka.ping.de>

        * symbols.c (scm_mem2symbol): Put a empty statement after the
        next_symbol label.  This is mandated by ANSI, appearantly.

2001-02-13  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * gc_os_dep.c: Do not include <linux/version.h>.  It makes no
        sense to compile for a specific kernel version.  Do not include
        <asm/signal.h> while defining __KERNEL__.  This hack should no
        longer be needed and caused problems.

2001-02-13  Marius Vollmer  <mvo@zagadka.ping.de>

        * eval.c (scm_ceval, scm_deval): use `SIDEVAL' instead of
        SCM_CEVAL when evaluating subforms of `begin' forms.  SCM_CEVAL
        can not deal with immediates.

2001-02-12  Keisuke Nishida  <kxn30@po.cwru.edu>

        * list.c (scm_list_copy): Validate the first argument.

2001-02-11  Marius Vollmer  <mvo@zagadka.ping.de>

        Fix evaluator so that top-level expressions are correctly
        evaluated with respect to the module system.

        * modules.h. modules.c (scm_current_module_lookup_closure): New
        function.

        * eval.h (scm_primitive_eval, scm_primitive_eval_x): New
        prototypes.
        (scm_i_eval, scm_i_eval_x, scm_eval, scm_eval_x): Changed argument
        names to better reflect their meaning.

        * eval.c (scm_ceval, scm_deval): Recognize when `begin' is being
        evaluated at top-level and synronize lookup closure before
        executing every subform.
        (scm_primitve_eval_x, scm_primitive_eval): New functions.
        (scm_eval_x, scm_eval): Reimplement in terms of
        scm_primitive_eval_x and scm_primitive_eval, respectively.

2001-02-09  Marius Vollmer  <mvo@zagadka.ping.de>

        * macros.c (scm_macro_name, scm_macro_transformer): Use
        SCM_SMOB_DATA instead of SCM_CDR.  Provided by Martin Grabmueller.
        Thanks!

2001-02-10  Keisuke Nishida  <kxn30@po.cwru.edu>

        * dump.c (scm_store_bytes): Store data size before data.
        (scm_restore_bytes): Restore data size.  Takes a pointer to size.
        * dump.h (scm_restore_bytes): Updated.

2001-02-09  Keisuke Nishida  <kxn30@po.cwru.edu>

        * dump.c: Use double cells for update schedule.

2001-02-08  Keisuke Nishida  <kxn30@po.cwru.edu>

        * ports.c (scm_unread_char): Take an optional argument.

2001-02-08  Marius Vollmer  <marius.vollmer@uni-dortmund.de>

        * modules.h (scm_selected_module, scm_current_module): Renamed
        scm_selected_module to scm_current_module to synchronize Scheme
        and C names.
        (scm_select_module, scm_set_current_module): Likewise.  Changed
        all uses.

        * ports.c (scm_port_for_each): Make a snapshot of the port table
        before iterating over it.  The table might change while the user
        code is running.  With the snapshot, the user can depend on the
        fact that each port that existed at the start of the iteration is
        encountered exactly once.  (ice-9 popen) depends on this.

2001-02-08  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * strings.h (SCM_STRING_MAX_LENGTH):  New macro.

        * strings.c (scm_makstr, scm_take_str, scm_make_string):  Added
        range checking for the size parameter.  Thanks to Martin
        Grabmueller for the hint.

        (scm_makstr):  Reordered string initialization to make interrupt
        deferring unnecessary.

        * vectors.c (scm_make_vector):  Fixed range checking.

2001-02-08  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * vectors.h (SCM_VECTOR_MAX_LENGTH):  New macro.

        * vectors.c (scm_make_vector, scm_c_make_vector):  Improved the
        checking of the size parameter for type correctness and valid
        range.  Thanks to Rob Browning for reporting the problem.  Instead
        of deferring interrupts, scm_remember_upto_here_1 is used.

2001-02-05  Keisuke Nishida  <kxn30@po.cwru.edu>

        * dump.c (scm_store_cell_object, scm_restore_cell_object): Removed.
        (scm_dump_cell_update): Removed.
        (scm_dump_update): Renamed from scm_dump_object_update.
        (scm_restore_string, scm_restore_bytes, scm_restore_word): Takes
        a pointer instead of returning a value.
        * keywords.c (keyword_undump): Updated.

2001-02-05  Keisuke Nishida  <kxn30@po.cwru.edu>

        * dump.c, dump.h: Modified a lot.
        (SCM_DUMP_COOKIE): Version 0.1
        (scm_dump_mark): Removed.
        (scm_restore_cell_object, scm_store_cell_object): New functions.

        * smob.h (scm_smob_descriptor): Removed slots: dump_mark,
        dump_dealloc, dump_store, undump_alloc, undump_restore, undump_init.
        New slots: dump, undump.
        * smob.c (scm_make_smob_type, scm_set_smob_dump, scm_set_smob_undump):
        Updated.

        * keywords.c (keyword_dump): Renamed from keyword_dealloc.
        (keyword_undump): Renamed from keyword_alloc.
        (scm_init_keywords): Set keyword_dump and keyword_undump.

2001-02-03  Michael Livshin  <mlivshin@bigfoot.com>

        * gc.c (DOUBLECELL_ALIGNED_P): new macro, a better-named analog of
        the deprecated SCM_DOUBLE_CELLP.

        * tags.h (SCM_DOUBLE_CELLP): deprecated.

2001-02-02  Keisuke Nishida  <kxn30@po.cwru.edu>

        * dump.c, dump.h: New files.
        * Makefile.am: Added dump.c, dump.h, dump.x, dump.doc.
        * init.c: #include "libguile/dump.h".
        (scm_init_guile_1): Call scm_init_dump.
        * smob.h (scm_smob_descriptor): New slots: dump_mark,
        dump_dealloc, dump_store, undump_alloc, undump_restore,
        undump_init.
        * smob.c (scm_make_smob_type): Init the new slots.
        (scm_set_smob_dump, scm_set_smob_undump): New functions.
        * smob.h (scm_set_smob_dump, scm_set_smob_undump): Declared.

        * keywords.c: #include "libguile/dump.h".
        (keyword_dealloc, keyword_alloc): New functions.
        (scm_init_keywords): Set smob_dump and smob_undump.

2001-02-01  Keisuke Nishida  <kxn30@po.cwru.edu>

        * vectors.c (scm_c_make_vector): New function.
        * vectors.h (scm_c_make_vector): Declared.
        * eval.c (scm_copy_tree), filesys.c (scm_stat2scm), fluids.c
        (scm_make_initial_fluids, grow_fluids), gc.c (scm_init_storage),
        gh_data.c (gh_ints2scm, gh_doubles2scm): goops.c
        (scm_make_method_cache, scm_i_vector2list,
        scm_compute_applicable_methods, scm_sys_method_more_specific_p),
        init.c (start_stack), net_db.c (scm_gethost, scm_getnet,
        scm_getproto, scm_return_entry), posix.c (scm_getgroups,
        scm_getpwuid, scm_getgrgid, scm_uname), print.c (make_print_state,
        grow_ref_stack), regex-posix.c (scm_regexp_exec), scmsigs.c
        (scm_init_scmsigs), socket.c (scm_addr_vector, scm_addr_vector),
        stime.c (scm_times, filltime), unif.c (scm_make_uve), vectors.c
        (scm_vector, scm_make_vector): Use scm_c_make_vector.

        * hashtab.c (scm_c_make_hash_table): New function.
        * hashtab.h (scm_c_make_hash_table): Declared.
        * environments.c (scm_make_leaf_environment,
        scm_make_eval_environment), gc.c (scm_init_storage),
        keywords.c (scm_init_keywords), symbols.c (scm_builtin_bindings):
        Use scm_c_make_hash_table.

2001-01-31  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * unif.c (rapr1): Don't apply scm_uniform_vector_length on arrays.

2001-01-29  Martin Grabmueller  <mgrabmue@cs.tu-berlin.de>

        * struct.c (scm_make_vtable_vtable): Removed unnecessary "" from
        end of docstring.

        * struct.c (scm_struct_set_x, scm_struct_vtable_tag,
        scm_struct_vtable_name, scm_set_struct_vtable_name_x), weaks.c
        (scm_make_weak_value_hash_table, scm_make_doubly_weak_hash_table,
        scm_weak_value_hash_table_p, scm_doubly_weak_hash_table_p),
        srcprop.c (scm_source_properties, scm_set_source_properties_x,
        scm_source_property, scm_set_source_property_x), sort.c
        (scm_sort_list_x, scm_restricted_vector_sort_x, scm_sorted_p,
        scm_merge, scm_merge_x, scm_sort_x, scm_sort, scm_stable_sort_x,
        scm_stable_sort, scm_sort_list_x, scm_sort_list): Added
        docstrings.

2001-01-29  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * eval.c (SCM_APPLY): Check that primitives which take 1 arg
        really get that arg.

2001-01-26  Keisuke Nishida  <kxn30@po.cwru.edu>

        * goops.c (s_scm_get_keyword): Bug fix.

2001-01-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        The following patch was sent by Martin Grabmueller.  It makes sure
        that in case of parameter errors the correct function name is
        shown, and that parameter types are only checked once.

        * strop.c (string_copy, string_upcase_x, string_downcase_x,
        string_capitalize_x):  New functions.  Each one performs the core
        functionality of the corresponding scm_* function.

        (scm_string_copy, scm_string_upcase_x, scm_string_upcase,
        scm_string_downcase_x, scm_string_downcase,
        scm_string_capitalize_x, scm_string_capitalize):  Reduced to
        parameter checking wrappers of the above functions.

2001-01-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * continuations.c, dynl.c, keywords.c, load.c:  Include
        strings.h.  Thanks to Bill Schottstaedt for the bug report.

2001-01-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * backtrace.c (display_header):  Make sure that line and column
        information is shown independent of whether the port the code was
        read from had an associated filename.  Thanks to Martin
        Grabmueller for providing this patch.

2001-01-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * fports.[ch] (scm_file_port_p):  New primitive.

2001-01-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * tags.h (scm_tc16_fport, scm_tc16_strport, scm_tc16_sfport):
        These are now defined in fports.c, strports.c and vports.c.

        * fports.[ch] (scm_tc16_fport), strports.c (scm_tc16_strport),
        vports.c (scm_tc16_sfport): Made variables (were macros defined in
        tags.h).

        fports.c (scm_make_fptob), strports.c (scm_make_stptob), vports.c
        (scm_make_sfptob):  Made static.  These return a type code now.

        fports.c (scm_init_fports), strports.c (scm_init_strports),
        vports.c (scm_init_vports):  Create the corresponding port types.

        * fports.h (SCM_FPORTP, SCM_OPFPORTP, SCM_OPINFPORTP,
        SCM_OPOUTFPORTP):  Redefined in terms of scm_tc16_fport.

        * init.c (scm_init_guile_1):  Make sure strports are initialized
        before gdbint.

        * ports.[ch] (scm_make_port_type):  Changed the return type to
        scm_bits_t.

        * ports.c (scm_ports_prehistory):  Don't create any port types
        here.

        * posix.c (scm_ttyname):  Use SCM_FPORTP instead of comparing
        against scm_tc16_fport directly.

2001-01-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * srcprop.c (scm_set_source_property_x):  Fix to handle
        (set-source-property! <obj> 'copy <datum>) correctly.

2001-01-24  Gary Houston  <ghouston@arglist.com>

        * filesys.c (scm_link): docstring fix.
        * fports.h (scm_setfileno): obsolete declaration removed.
        * posix.c: bogus popen declaration removed.

        * rdelim.c: new file, split from ioext.c.
        * rdelim.h: new file, split from ioext.h
        * Makefile.am: add rdelim.c and related files.
        * init.c: call scm_init_rdelim.  include rdelim.h.

2001-01-24  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        This patch was sent by Martin Grabmueller and makes sure that
        parameter errors are reported correctly by the lexicographic
        ordering predicates.

        * strorder.c (string_less_p, string_ci_less_p):  New functions.

        (scm_string_less_p, scm_string_ci_less_p):  Extracted the core
        functionality into string_less_p, string_ci_less_p respectively.
        The remaining code is just a wrapper to do the parameter
        checking.

        (scm_string_leq_p, scm_string_gr_p, scm_string_geq_p):  Check the
        parameters and call string_less_p instead of scm_string_less_p.

        (scm_string_ci_leq_p, scm_string_ci_gr_p, scm_string_ci_geq_p):
        Check the parameters and call string_less_ci_p instead of
        scm_string_ci_less_p.

2001-01-24  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        This patch modifies scm_display_error to perform parameter
        checking.  Thanks to Neil Jerram for the bug report.

        * backtrace.[ch] (scm_i_display_error):  New function.

        * backtrace.c (scm_display_error):  Added parameter check and
        extracted the core functionality into function
        scm_i_display_error.

        * throw.c (handler_message):  Call scm_i_display_error to display
        the error message.

2001-01-23  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * eval.c (SCM_APPLY): Added # args check for application of
        procedures with arity 3.  (Thanks to Anders Holst.)

2001-01-24  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * filesys.h (SCM_DIR_FLAG_OPEN, SCM_DIR_OPEN_P):  Added.

        (SCM_OPDIRP):  Deprecated.

        * filesys.c (scm_opendir):  Use SCM_DIR_FLAG_OPEN instead of
        SCM_OPN.

        (scm_readdir, scm_rewinddir):  Don't use SCM_VALIDATE_OPDIR.
        Instead, give an explicit error message in case the directory is
        closed.

        (scm_closedir, scm_dir_print):  Rewritten to use SCM_DIR_OPEN_P
        instead of SCM_OPENP and SCM_CLOSEDP.

        * validate.h (SCM_VALIDATE_OPDIR):  Deprecated.

2001-01-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (inner_eval, scm_eval):  Move all real functionality into
        inner_eval.  Avoid to copy the expression twice by inlining some
        code from scm_i_eval.

2001-01-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_m_case):  The 'else' clause of a 'case' statement
        now has to be the last clause, as required by R5RS.  Thanks to
        Martin Grabmueller for the patch.

2001-01-18  Gary Houston  <ghouston@arglist.com>

        * ioext.c: further simplify scm_read_string_x_partial by defining
        a macro SCM_EBLOCK.

2001-01-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gh_data.c (gh_ints2scm):  Simplified using SCM_FIXABLE.

2001-01-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h:  Added comment about architecture and compiler
        properties that are required by guile.

        (SCM_FIXNUM_BIT, SCM_MOST_POSITIVE_FIXNUM,
        SCM_MOST_NEGATIVE_FIXNUM):  Moved to numbers.h.

        (SCM_CHAR_BIT, SCM_LONG_BIT):  Moved here from numbers.h.

        * numbers.h (SCM_CHAR_BIT, SCM_LONG_BIT):  Moved to __scm.h.

        (SCM_FIXNUM_BIT, SCM_MOST_POSITIVE_FIXNUM,
        SCM_MOST_NEGATIVE_FIXNUM):  Moved here from __scm.h.

2001-01-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h (SCM_FIXNUM_BIT):  Added.  The name is chosen in analogy
        to the names in limits.h.

        * numbers.c (abs_most_negative_fixnum):  Added.

        (scm_quotient, scm_remainder):  Fixed the fixnum-min / (abs
        fixnum-min) special case.

        (scm_big_and):  Fix for negative first parameter.

        (scm_bit_extract):  Fix for fixnum paramters.
        Thanks to Rob Browning for the bug report.

        (scm_init_numbers):  Initialize abs_most_negative_fixnum.

2001-01-16  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * symbols.c (scm_symbol_bound_p):  Fixed comment.
        Thanks to Chris Cramer.

2001-01-15  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * smob.[ch] (scm_make_smob_type):  Return type is scm_bits_t now.
        Thanks to Bill Schottstaedt.

2001-01-11  Michael Livshin  <mlivshin@bigfoot.com>

        from Matthias Köppe:

        * objects.h (SCM_SET_ENTITY_SETTER): new macro.  SCM_ENTITY_SETTER
        casts its result, so doesn't yield an lvalue per ANSI C.

        * goops.c (s_scm_sys_set_object_setter_x): use
        SCM_SET_ENTITY_SETTER.
        (clear_method_cache): use SCM_SET_ENTITY_PROCEDURE.

        * gc.h (SCM_GC_SET_CARD_BVEC): new macro.  SCM_GC_CARD_BVEC casts
        its result, so doesn't yield an lvalue per ANSI C.
        (SCM_GC_SET_CARD_FLAGS): ditto for SCM_GC_GET_CARD_FLAGS.
        (SCM_GC_CLR_CARD_FLAGS): redefined in terms of
        SCM_GC_SET_CARD_FLAGS.
        (SCM_GC_SET_CARD_FLAG, SCM_GC_CLR_CARD_FLAGS): ditto.

        * gc.c (INIT_CARD): use the explicit setter macro to set the bvec.

2001-01-08  Gary Houston  <ghouston@arglist.com>

        * validate.h (SCM_VALIDATE_SUBSTRING_SPEC_COPY): new macro.
        * ioext.c (scm_read_string_x_partial, scm_read_delimited_x),
        socket.c (scm_recvfrom): use the new macro, plus minor docstring
        changes.
        * ioext.c (scm_read_string_x_partial): don't crash if -1 is supplied
        for fdes.  if current input port is used, check that it's a file
        port.

2001-01-06  Gary Houston  <ghouston@arglist.com>

        * ioext.c (scm_read_string_x_partial): new procedure, implements
        read-string!/partial.
        * ports.c (scm_take_from_input_buffers): new procedure used by
        scm_read_string_x_partial.
        (scm_drain_input): use scm_take_from_input_buffers.

2001-01-06  Marius Vollmer  <mvo@zagadka.ping.de>

        * validate.h (SCM_VALIDATE_NUMBER): New.

2001-01-03  Michael Livshin  <mlivshin@bigfoot.com>

        * guardians.c (F_GREEDY, F_LISTED, F_DESTROYED, GREEDY_P,
        SET_GREEDY, LISTED_P, SET_LISTED, CLR_LISTED, DESTROYED_P,
        SET_DESTROYED): new defines/macros.
        (GUARDIAN_LIVE, GUARDIAN_ZOMBIES, GUARDIAN_NEXT): deleted.
        (add_to_live_list): takes a `guardian_t *' now, not SCM.
        (guardian_print): print more info.
        (guardian_apply): check if the guardian is destroyed, and throw an
        error if so.  take one more optional argument `throw_p'.
        (scm_guard): depending on the value of `throw_p', return a boolean
        result.
        (scm_get_one_zombie): remove redundant property test.
        (guardian_t): represent the various (currently 3, I hope nothing
        more gets added) boolean fields as bit flags.
        (scm_guardian_destroyed_p, scm_guardian_greedy_p): new predicates.
        (scm_destroy_guardian_x): new procedure.

        * guardians.h: added prototypes for `scm_guardian_greedy_p' and
        `scm_guardian_destroyed_p'.  changed prototype for `scm_guard'.

2001-01-01  Gary Houston  <ghouston@arglist.com>

        * fports.c (fport_write): bugfix: handle short writes for
        unbuffered ports too.  optimize the buffered case by minimizing
        the number of write/flush calls.
        (write_all): new helper procedure.

The ChangeLog continues in the file: "ChangeLog-2000"

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