*** empty log message ***

[bpt/guile.git] / libguile / ChangeLog

2001-03-07  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * symmbols.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.

2000-12-30  Michael Livshin  <mlivshin@bigfoot.com>

        * guardians.c (guardian_print): for sharing guardians, print that
        they are sharing.
        (scm_guard, scm_get_one_zombie): place the critical section
        barriers more correctly.

        * weaks.c (scm_scan_weak_vectors): move the calculation of the
        `weak_keys' and `weak_values' flags out of the inner loop.

2000-12-29  Michael Livshin  <mlivshin@bigfoot.com>

        * guardians.c: (greedily_guarded_prop): deleted.
        (greedily_guarded_whash): new variable.  a doubly-weak hash table
        used to keep the "greedily guarded" object property.  the previous
        implementation (via primitive object properties) was incorrect due
        to its only-the-key-is-weak semantics.
        (scm_guard, get_one_zombie, scm_init_guardians): use/init
        `greedily_guarded_whash'.

2000-12-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (check_map_args), gh_data.c (gh_set_substr,
        gh_scm2newstr, gh_get_substr, gh_symbol2newstr), print.c
        (scm_iprin1):  Use scm_remember_upto_here_1 instead of
        scm_remember.

        * gc.[ch] (scm_remember_upto_here_1, scm_remember_upto_here_2,
        scm_remember_upto_here):  New functions.

        (scm_remember):  Deprecated.

2000-12-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * continuations.c (scm_make_continuation):  Make variable cont
        volatile to let the compiler know that it won't be clobbered by
        longjmp.  (It wouldn't be anyway, but for some reason the compiler
        is not able to see that.)

2000-12-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        This patch re-introduces the unused member "properties" of
        struct scm_subr_entry as requested by Mikael Djurfeldt.

        * procs.h (scm_subr_entry):  Re-introduced member "properties".

        (SCM_SUBR_PROPS):  Un-deprecated.

        * procs.c (scm_make_subr_opt, scm_mark_subr_table):  Struct
        scm_subr_entry has a member "properties" again.

2000-12-28  Michael Livshin  <mlivshin@bigfoot.com>

        * guardians.c (mark_dependencies_in_tconc): new function.
        (mark_dependencies): bug fix.  mark the dependencies of the known
        zombies, too.  duh.

2000-12-24  Michael Livshin  <mlivshin@bigfoot.com>

        * gc.c: (scm_gc_mark_dependencies): use SCM_EQ_P for SCMs, not
        '=='.  also, return after calling `scm_gc_mark'.

2000-12-24  Michael Livshin  <mlivshin@bigfoot.com>

        * gc.c: (scm_gc_mark_dependencies): new function.  like
        `scm_gc_mark', but doesn't mark the argument itself.  defined
        using an arrangement similar to that in eval.c: `scm_gc_mark' and
        `scm_gc_mark_dependencies' are derived from the same "template"
        by ugly preprocessor magic.

        * gc.h: added prototype for `scm_gc_mark_dependencies'.

        * init.c (scm_init_guile_1): call the renamed
        `scm_init_guardians'.

        * guardians.h: changed prototypes for `scm_make_guardian' and
        `scm_init_guardians'.

        * guardians.c (guardian_t): added new fields `greedy_p' and
        `listed_p'.
        (GUARDIAN_P): predicate that says whether its argument is a
        guardian.
        (GUARDIAN_GREEDY_P, GUARDIAN_LISTED_P): new predicates.
        (greedy_guardians, sharing_guardians): new variables.  hold the
        greedy and sharing live guardian lists, respectively.
        (first_live_guardian, current_link_field): removed.
        (greedily_guarded_prop): new variable.  holds the "is greedily
        guarded" object property.
        (self_centered_zombies): new variable.  stores guarded objects
        that are parts of cycles.
        (add_to_live_list): new function, introduced to decouple marking a
        guardian and adding it to the live list.
        (guardian_mark): call `add_to_live_list'.
        (guardian_print): print whether the guardian is greedy or not.
        also change "live" and "zombie" to "reachable" and "unreachable"
        respectively, to be less confusing.
        (scm_guard): if the guardian is greedy, test whether the object is
        already greedily marked.  throw an error if so.
        (scm_get_one_zombie): if the guardian is greedy, remove the
        "greedily guarded" property from the object.
        (scm_make_guardian): add a new optional boolean argument which
        says whether the guardian is greedy or sharing.
        (guardian_gc_init): init the new live lists.
        (mark_dependencies): new function.
        (mark_and_zombify): new function.
        (guardian_zombify): reworked to support the new guardian
        semantics.  move some logic to `mark_dependencies' and
        `mark_and_zombify'.
        (whine_about_self_centered_zombies): new function.  installed in
        the `after-gc-hook' to complain about guarded objects which are
        parts of cycles.
        (scm_init_guardians): init the new stuff.  renamed from
        `scm_init_guardian'.

2000-12-23  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * procs.h (scm_subr_entry):  Removed unused struct member
        "properties".

        (SCM_SUBR_PROPS):  Deprecated.

        * procs.c (scm_make_subr_opt, scm_mark_subr_table):  Struct
        scm_subr_entry does not have a member "properties" any more.

2000-12-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * procs.h (scm_subr_entry):  Removed unused struct member
        "documentation".

        (SCM_SUBR_DOC):  Deprecated.

        * procs.c (scm_make_subr_opt):  Eliminate use of scm_intern0 in
        favor of scm_str2symbol.  Similarly, prefer scm_sysintern over
        scm_sysintern0.

        (scm_make_subr_opt, scm_mark_subr_table):  Struct scm_subr_entry
        does not have a member "documentation" any more.

2000-12-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (restore_environment):  Make sure that changes to the
        current environment will take effect when re-entering the dynamic
        scope.

2000-12-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * goops.h (SCM_PUREGENERICP):  Include the SCM_STRUCTP test.

        * goops.c (scm_sys_invalidate_method_cache_x, scm_m_atdispatch,
        scm_pure_generic_p):  The SCM_STRUCTP test is implied.

2000-12-20  Gary Houston  <ghouston@arglist.com>

        * continuations.c (continuation_apply): subtract the length of
        continuation->dynenv, not the dynenv itself.  I broke it last
        time I changed this file.  thanks to Bernard Urban.

2000-12-16  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * goops.c (remove_duplicate_slots, maplist,
        scm_sys_initialize_object, scm_sys_prep_layout_x,
        scm_sys_inherit_magic_x, scm_instance_p,
        scm_sys_set_object_setter_x, scm_sys_invalidate_method_cache_x,
        scm_compute_applicable_methods, scm_m_atdispatch,
        scm_pure_generic_p):  Remove redundant SCM_N?IMP tests.

2000-12-16  Keisuke Nishida  <kxn30@po.cwru.edu>

        * validate.h (SCM_WRONG_NUM_ARGS): New macro.
        * goops.h: #include "libguile/validate.h"
        (SCM_CLASSP, SCM_GENERICP, SCM_METHODP): Moved from goops.c with
        prefix "SCM_".
        (SCM_VALIDATE_INSTANCE, SCM_VALIDATE_ACCESSOR, SCM_VALIDATE_CLASS,
        SCM_VALIDATE_GENERIC, SCM_VALIDATE_METHOD): New macros.
        * goops.c (CLASSP, GENERICP, METHODP): Moved to goops.h with
        prefix "SCM_".
        (scm_sys_compute_slots, scm_sys_initialize_object,
        scm_sys_prep_layout_x, s_sys_inherit_magic_x, scm_instance_p,
        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_generic_function_name, scm_generic_function_methods,
        scm_method_generic_function, scm_method_specializers,
        scm_method_procedure, scm_accessor_method_slot_definition,
        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_using_class,
        scm_slot_set_using_class_x, scm_slot_bound_using_class_p,
        scm_slot_exists_using_class_p, scm_slot_ref, scm_slot_set_x,
        scm_slot_bound_p, scm_slots_exists_p, scm_sys_allocate_instance,
        scm_sys_set_object_setter_x, scm_sys_modify_instance,
        scm_sys_modify_class, scm_sys_invalidate_class,
        scm_sys_invalidate_method_cache_x, scm_generic_capability_p,
        scm_enable_primitive_generic_x, scm_primitive_generic_generic,
        scm_make, scm_find_method, scm_sys_method_more_specific_p,
        scm_pure_generic_p, scm_sys_goops_loaded): Replaced SCM_PROC by
        SCM_DEFINE.  Use validate macros defined above.
        (scm_assert_bound, scm_at_assert_bound_ref, scm_sys_goops_loaded):
        Declared as static functions.
        (s_class_of, scm_class_of): Replaced SCM_PROC by SCM_DEFINE
        in object.c.
        * object.c (scm_class_of): Use SCM_DEFINE.

2000-12-16  Keisuke Nishida  <kxn30@po.cwru.edu>

        * symbols.h (scm_symbols_prehistory): Added prototype.

2000-12-16  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * environments.[ch] (scm_system_environment):  New variable, will
        replace scm_symhash soon.  We may decide for a better name and
        also to split this up into a set of environments later.

        (scm_environments_prehistory):  Initialize scm_system_environment.

        * init.c (scm_init_guile_1):  scm_environments_prehistory requires
        storage to be initialized.

2000-12-15  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (change_environment, inner_eval, restore_environment):
        New functions.

        (scm_eval):  Bring the global variable that holds the current
        environment up to date when entering or leaving the scope of the
        evaluated code.  Thanks to Matthias Koeppe for the bug report.

2000-12-13  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_init_numbers):  Re-introduced bindings for
        most-positive-fixnum and most-negative-fixnum as requested by
        Mikael Djurfeldt.

2000-12-12  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        The variable scm_symbols is made static within symbols.c and
        renamed to symbols.  The initialization of the symbols hash table
        is done in function scm_symbols_prehistory.

        * gc.c (scm_init_storage):  Don't initialize scm_symbols.  Don't
        define most-positive-fixnum, most-negative-fixnum and
        bignum-radix.

        * init.c (scm_init_guile_1):  Call scm_symbols_prehistory.

        * root.h (scm_symbols):  Not in scm_sys_protects any more.

        * symbols.c (symbols):  Renamed from scm_symbols and made static.

        (scm_mem2symbol):  scm_symbols is renamed to symbols.

        * symbols.[ch] (scm_symbols_prehistory):  Added.

2000-12-12  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_init_storage), root.h (scm_weak_symhash, scm_symbols):
        Removed the former scm_weak_symhash hash table.  Added scm_symbols
        hash table.

        * stacks.c (get_applybody):  scm_sym2vcell may return #f.

        * symbols.c (scm_mem2symbol):  This function is now responsible
        for creating symbol objects and storing them in the global
        scm_symbols hash table.

        (scm_str2symbol):  Rewritten in terms of scm_mem2symbol.

        (scm_sym2vcell):  For system bindings, there is now only one
        obarray - scm_symhash.  If scm_sym2vcell is called to look up a
        symbol that can't be found and shall not be created, #f is
        returned.  Most callers of scm_sym2vcell have expected this
        behaviour anyway.

        (scm_intern_obarray_soft):  Removed reference to scm_weak_symhash
        from comment.

        (scm_intern_obarray_soft, scm_sysintern0_no_module_lookup):  These
        functions are not responsible for symbol creation any more, only
        for creation of bindings.

        (scm_symbol_value0):  Don't use scm_intern_obarray_soft to create
        a symbol object.

        (scm_symbol_interned_p):  scm_weak_symhash is removed.

        * symbols.[ch] (scm_builtin_weak_bindings):  Removed.  There are
        no weak bindings any more.

2000-12-12  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * hooks.c (scm_create_hook), script.c
        (scm_compile_shell_switches), snarf.h (SCM_VCELL,
        SCM_GLOBAL_VCELL, SCM_VCELL_INIT, SCM_GLOBAL_VCELL_INIT):  Create
        a binding in one go (instead of first creating a vcell and then
        setting its cdr).

2000-12-12  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * hash.[ch] (scm_string_hash), symbols.[ch] (scm_string_hash):
        Moved function scm_string_hash to hash.c.

2000-12-11  Marius Vollmer  <mvo@zagadka.ping.de>

        * gc_os_dep.c (scm_get_stack_base) [MSWIN32]: Added detection of
        page size on the w32 architecture.  Updated from Boehms gc5.2.
        Thanks to Lars J. Aas!

2000-12-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * debug.c (scm_sym_procname, scm_sym_dots, scm_sym_source,
        scm_init_debug), eval.c (scm_sym_dot, scm_sym_arrow, 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,
        scm_init_eval), gsubr.c (scm_sym_name, scm_init_gsubr), srcprop.c
        (scm_sym_filename, scm_sym_copy, scm_sym_line, scm_sym_column,
        scm_sym_breakpoint), variable.c (anonymous_variable_sym):
        Initialize symbols by using SCM_(GLOBAL_)?SYMBOL.

        * gc.c (scm_i_getenv_int):  Moved here from init.c.

        * gc.[ch] (scm_init_storage):  Read gc configuration environment
        variables here, not in init.c.

        * init.c (scm_i_getenv_int):  Moved to gc.c.

        (scm_init_guile_1):  Move configuration code to scm_init_storage.
        Make sure procprops get initialized early.

        * keywords.c (scm_c_make_keyword):  Report amount of memory freed
        by scm_must_free.  Use scm_str2symbol instead of scm_sysintern0.

        * options.c (scm_init_opts):  Use scm_str2symbol instead of
        scm_sysintern0.

2000-12-10  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * threads.h (SCM_MUTEXP): Typo: removed extra parenthesis.

2000-12-08  Keisuke Nishida  <kxn30@po.cwru.edu>

        * tags.h (SCM_TYP16_PREDICATE): New macro.
        * arbiters.c (scm_tc16_arbiter): Typed as scm_bits_t.
        (arbiter_print): Renamed from prinarb.
        (scm_init_arbiters): Don't use scm_make_smob_type_mfpe.
        * async.c (tc16_async): Typed as scm_bits_t.
        (SCM_ASYNCP): Use SCM_TYP16_PREDICATE.
        (async_mark): Renamed from mark_async.
        (scm_init_async): Updated.
        * continuations.h (SCM_CONTINUATIONP): Use SCM_TYP16_PREDICATE.
        * debug.c (scm_tc16_memoized, scm_tc16_debugobj): Typed as scm_bits_t.
        (memoized_print): Renamed from prinmemoized.
        (debugobj_print): Renamed from prindebugobj.
        (scm_init_debug): Don't use scm_make_smob_type_mfpe.
        * debug.h (scm_tc16_memoized, scm_tc16_debugobj): Typed as scm_bits_t.
        (SCM_DEBUGOBJP, SCM_MEMOIZEDP): Use SCM_TYP16_PREDICATE.
        * dynl.c (scm_tc16_dynamic_obj): Typed as scm_bits_t.
        (dynl_obj_mark): Renamed from mark_dynl_obj.
        (dynl_obj_print): Renamed from print_dynl_obj.
        (scm_dynamic_object_p): Use SCM_TYP16_PREDICATE.
        (scm_init_dynamic_linking): Updated.
        * dynwind.c (SCM_GUARDSP): Use SCM_TYP16_PREDICATE.
        (tc16_guards): Typed as scm_bits_t.
        (guards_print): Renamed from printguards.
        (scm_init_dynwind): Don't use scm_make_smob_type_mfpe.
        * environments.c (scm_tc16_environment, scm_tc16_observer):
        Typed as scm_bits_t.
        (environment_mark, environment_free, environment_print,
        observer_mark, observer_print, leaf_environment_mark,
        leaf_environment_free, leaf_environment_print,
        eval_environment_mark, eval_environment_free,
        eval_environment_print, import_environment_mark,
        import_environment_free, import_environment_print,
        export_environment_mark, export_environment_free,
        export_environment_print): Renamed from mark_environment,
        free_environment, print_environment, mark_observer,
        print_observer, mark_leaf_environment, free_leaf_environment,
        print_leaf_environment, mark_eval_environment,
        free_eval_environment, print_eval_environment,
        mark_import_environment, free_import_environment,
        print_import_environment, mark_export_environment,
        free_export_environment, and print_export_environment, respectively.
        (free_observer): Removed.
        (leaf_environment_funcs, eval_environment_funcs,
        import_environment_funcs, export_environment_funcs,
        scm_environments_prehistory): Updated.
        * environments.h (scm_tc16_environment, scm_tc16_observer):
        Typed as scm_bits_t.
        * eval.c (scm_tc16_promise): Typed as scm_bits_t.
        (promise_print): Renamed from prinprom.
        (scm_promise_p): Use SCM_TYP16_PREDICATE.
        (scm_init_eval): Updated.
        * eval.h (scm_tc16_promise): Typed as scm_bits_t.
        * filesys.c (scm_tc16_dir): Typed as scm_bits_t.
        (scm_init_filesys): Don't use scm_make_smob_type_mfpe.
        * filesys.h (scm_tc16_dir): Typed as scm_bits_t.
        * fluids.c (scm_tc16_fluid): Typed as scm_bits_t.
        (fluid_print): Renamed from print_fluid.
        (scm_init_fluids): Don't use scm_make_smob_type_mfpe.
        * fluids.h (scm_tc16_fluid): Typed as scm_bits_t.
        * fports.c (fport_print): Renamed from prinfport.
        (scm_make_fptob): Updated.
        * guardians.c (tc16_guardian): Typed as scm_bits_t.
        * hooks.c (scm_tc16_hook): Typed as scm_bits_t.
        (hook_print): Renamed from print_hook.
        (scm_init_hooks): Updated.
        * hooks.h (scm_tc16_hook): Typed as scm_bits_t.
        (SCM_HOOKP): Use SCM_TYP16_PREDICATE.
        * keywords.c (scm_tc16_keyword): Typed as scm_bits_t.
        (keyword_print): Renamed from prin_keyword.
        (scm_init_keywords): Don't use scm_make_smob_type_mfpe.
        * keywords.h (scm_tc16_keyword): Typed as scm_bits_t.
        * macros.c (scm_tc16_macro): Typed as scm_bits_t.
        (scm_macro_p, scm_macro_type): Use SCM_TYP16_PREDICATE.
        (scm_init_macros): Don't use scm_make_smob_type_mfpe.
        * macros.h (scm_tc16_macro): Typed as scm_bits_t.
        * mallocs.c (scm_tc16_malloc): Typed as scm_bits_t.
        (malloc_free): Renamed from fmalloc.
        (malloc_print): Renamed from prinmalloc.
        (scm_init_mallocs): Don't use scm_make_smob_type_mfpe.
        * mallocs.h (scm_tc16_malloc): Typed as scm_bits_t.
        * modules.h (SCM_EVAL_CLOSURE_P): Use SCM_TYP16_PREDICATE.
        (scm_tc16_eval_closure): Renamed from scm_eval_closure_tag.
        (scm_standard_eval_closure, scm_init_modules): Updated.
        * ports.c (scm_tc16_void_port): Typed as scm_bits_t.
        * print.c (scm_tc16_port_with_ps): Typed as scm_bits_t.
        (port_with_ps_print): Renamed from print_port_with_ps.
        (scm_init_print): Updated.
        * print.h (scm_tc16_port_with_ps): Typed as scm_bits_t.
        (SCM_PORT_WITH_PS_P): Use SCM_TYP16_PREDICATE.
        * random.c (scm_tc16_rstate): Typed as scm_bits_t.
        (rstate_free): Renamed from free_rstate.
        (scm_init_random): Don't use scm_make_smob_type_mfpe.
        * random.h (scm_tc16_rstate): Typed as scm_bits_t.
        (SCM_RSTATEP): Use SCM_TYP16_PREDICATE.
        * regex-posix.c (scm_tc16_regex): Typed as scm_bits_t.
        (regex_free): Renamed from free_regex.
        (scm_init_regex_posix): Don't use scm_make_smob_type_mfpe.
        * regex-posix.h (scm_tc16_regex): Typed as scm_bits_t.
        * root.c (scm_tc16_root): Typed as scm_bits_t.
        (root_mark): Renamed from mark_root.
        (root_print): Renamed from print_root.
        (scm_init_root): Updated.
        * root.h (scm_tc16_root): Typed as scm_bits_t.
        (SCM_ROOTP): Use SCM_TYP16_PREDICATE.
        * smob.c (free_print): Renamed from freeprint.
        (scm_smob_prehistory): Don't use scm_make_smob_type_mfpe.
        * smob.h (SCM_SMOB_PREDICATE): Use SCM_TYP16_PREDICATE.
        * srcprop.c (scm_tc16_srcprops): Typed as scm_bits_t.
        (srcprops_mark): Renamed from marksrcprops.
        (srcprops_free): Renamed from freesrcprops.
        (srcprops_print): Renamed from prinsrcprops.
        (scm_init_srcprop): Don't use scm_make_smob_type_mfpe.
        * srcprop.h (scm_tc16_srcprops): Typed as scm_bits_t.
        (SRCPROPSP): Use SCM_TYP16_PREDICATE.
        * threads.c (scm_tc16_thread, scm_tc16_mutex, scm_tc16_condvar):
        Typed as scm_bits_t.
        * threads.h (scm_tc16_thread, scm_tc16_mutex, scm_tc16_condvar):
        Typed as scm_bits_t.
        (SCM_THREADP, SCM_MUTEXP, SCM_CONDVARP): Use SCM_TYP16_PREDICATE.
        * throw.c (tc16_jmpbuffer): Renamed from scm_tc16_jmpbuffer.
        (make_jmpbuf): Updated.
        (tc16_lazy_catch): Typed as scm_bits_t.
        (SCM_JMPBUFP, SCM_LAZY_CATCH_P): Use SCM_TYP16_PREDICATE.
        (jmpbuffer_print): Renamed from printjb.
        (lazy_catch_print): Renamed from print_lazy_catch.
        (scm_init_throw): Don't use scm_make_smob_type_mfpe.
        * unif.c (scm_tc16_array): Typed as scm_bits_t.
        (array_mark): Renamed from markra.
        (array_free): Renamed from freera.
        (scm_init_unif): Don't use scm_make_smob_type_mfpe.
        * unif.h (scm_tc16_array): Typed as scm_bits_t.
        (SCM_ARRAYP): Use SCM_TYP16_PREDICATE.
        * validate.h (SCM_VALIDATE_SMOB): Use SCM_TYP16_PREDICATE.
        * variable.c (scm_tc16_variable): Typed as scm_bits_t.
        (variable_print): Renamed from prin_var.
        (variable_equalp): Renamed from var_equal.
        (scm_markvar): Removed.
        (scm_init_variable): Don't use scm_make_smob_type_mfpe.
        * variable.h (scm_tc16_variable): Typed as scm_bits_t.

2000-12-08  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * feature.c (scm_add_feature), gh_data.c (gh_symbol2scm), goops.c
        (scm_sys_prep_layout_x, scm_make_class, scm_add_slot,
        scm_init_goops), load.c (init_build_info), print.c
        (scm_init_print), read.c (scm_lreadr), snarf.h (SCM_SYMBOL,
        SCM_GLOBAL_SYMBOL), stacks.c (scm_init_stacks), struct.c
        (scm_make_struct_layout), symbols.c (scm_sysintern0,
        scm_string_to_symbol, scm_gensym), throw.c
        (scm_handle_by_message):  Use scm_mem2symbol or scm_str2symbol
        instead of scm_intern_* to create a symbol object.

        * goops.c (Intern):  Removed.

        (CALL_GF1, CALL_GF2, CALL_GF3, CALL_GF4, build_class_class_slots,
        create_basic_classes, 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_generic_function_methods, scm_method_generic_function,
        scm_method_specializers, scm_method_procedure,
        scm_accessor_method_slot_definition, purgatory, scm_make,
        make_stdcls, create_standard_classes, make_class_from_template,
        scm_make_class):  Replaced calls to Intern with calls to
        scm_str2symbol.

        * ramap.c (init_raprocs):  Use scm_symbol_binding instead of
        scm_intern.

        * symbols.c (scm_sym2vcell):  Add a bogus return to avoid compiler
        warnings.

        * unif.c (scm_array_prototype):  Fix prototype return value for
        svects and llvects.

2000-12-08  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * symbols.[ch] (scm_mem2symbol, scm_str2symbol):  New functions.
        These shall replace all those calls to scm_intern... which are
        only required to create a scheme symbol from a C string or a field
        of chars.

2000-12-08  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * environments.c (DEFAULT_OBARRAY_SIZE), gc.c
        (DEFAULT_SYMHASH_SIZE):  Added to locally determine arbitrary
        default values for obarrays, thus removing the dependency from
        scm_symhash_dim.

        * environments.c (scm_make_leaf_environment,
        scm_make_eval_environment), gc.c (scm_init_storage):  Don't use
        scm_symhash_dim.

        * symbols.c (NUM_HASH_BUCKETS), symbols.[ch] (scm_symhash_dim):
        Removed.

        * symbols.c (scm_sym2vcell, scm_sysintern0_no_module_lookup):
        Eliminate a redundant SCM_IMP test.

        (scm_sym2vcell, scm_sysintern0_no_module_lookup):
        Don't assume a fixed obarray size any more.  

2000-12-07  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_init_gc):  gc_async is already protected from gc,
        namely via scm_asyncs.  Thanks to Keisuke Nishida for pointing
        this out.

2000-12-07  Keisuke Nishida  <kxn30@po.cwru.edu>

        * smob.h (scm_smob_apply_0, scm_smob_apply_1, scm_smob_apply_2,
        scm_smob_apply_3): Removed declarations.
        (scm_set_smob_apply): Takes unsigned integers.
        (scm_make_smob_type_mfpe, scm_set_smob_mfpe): Deprecated.
        * smob.c (scm_smob_apply_0_000, scm_smob_apply_1_010,
        scm_smob_apply_2_020): Removed.
        (scm_set_smob_apply): Takes unsigned integers + some optimization.
        (Thanks to Dirk Herrmann)
        (scm_make_smob_type_mfpe, scm_set_smob_mfpe): Deprecated.

2000-12-07  Keisuke Nishida  <kxn30@po.cwru.edu>

        * smob.h (SCM_SMOB_APPLICABLE_P, SCM_SMOB_APPLY_0,
        SCM_SMOB_APPLY_1, SCM_SMOB_APPLY_2, SCM_SMOB_APPLY_3): New macros.
        * eval.c (SCM_CEVAL, SCM_APPLY): Use macros above.
        * procprop.c (scm_i_procedure_arity): Ditto.
        * smob.c (scm_make_smob_type): Initialize gsubr_type.

2000-12-06  Keisuke Nishida  <kxn30@po.cwru.edu>

        * smob.h (scm_smob_descriptor): New fields `apply_0', `apply_1',
        `apply_2', and `apply_3'.
        * smob.c (scm_make_smob_type): Init new fields.
        (SCM_SMOB_APPLY0, SCM_SMOB_APPLY1, SCM_SMOB_APPLY2, SCM_SMOB_APPLY3):
        New macros.
        (scm_smob_apply_0_000, scm_smob_apply_0_010, scm_smob_apply_0_020,
        scm_smob_apply_0_030, scm_smob_apply_0_001, scm_smob_apply_0_011,
        scm_smob_apply_0_021, scm_smob_apply_0_error,
        scm_smob_apply_1_010, scm_smob_apply_1_020, scm_smob_apply_1_030,
        scm_smob_apply_1_001, scm_smob_apply_1_011, scm_smob_apply_1_021,
        scm_smob_apply_1_error,
        scm_smob_apply_2_020, scm_smob_apply_2_030, scm_smob_apply_2_001,
        scm_smob_apply_2_011, scm_smob_apply_2_021, scm_smob_apply_2_error,
        scm_smob_apply_3_030, scm_smob_apply_3_001, scm_smob_apply_3_011,
        scm_smob_apply_3_021, scm_smob_apply_3_error): New functions.
        (scm_set_smob_apply): Set new fields to the above functions.
        (scm_smob_apply_0, scm_smob_apply_1, scm_smob_apply_2,
        scm_smob_apply_3): Removed.
        * eval.c (SCM_CEVAL, SCM_APPLY): Rewrote smob calls.

2000-12-06  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_init_gc):  gc_async must be protected from gc.  I
        wonder why we never ran into problems up to now...

2000-12-06  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_init_gc):  Don't create a binding for %gc-thunk.

2000-12-06  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gsubr.c:  No need to include vector.h.

        (scm_gsubr_apply):  Use SCM_GSUBR_MAX instead of hard-coded value.
        Added FUNC_NAME wrapping.  Improved (temporarily?) disabled
        debugging code.  Replaced SCM_IMP with SCM_NULLP.  Eliminated call
        to ASRTGO.

        (scm_init_gsubr):  Eliminated outdated comment.

2000-12-06  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * async.c (SCM_ASYNCP):  Use SCM_TYP16 instead of SCM_GCTYP16.

        * eval.c (scm_m_vref, scm_m_vset, scm_m_define, SCM_CEVAL,
        SCM_APPLY, scm_copy_tree):  Remove commented code.

        (SCM_CEVAL, SCM_APPLY):  Remove #ifdef CCLO conditionals.  Without
        CCLO being defined, guile would not compile at all anyway.

        * gc.h (SCM_GC8MARKP, SCM_SETGC8MARK, SCM_CLRGC8MARK, SCM_GCTYP16,
        SCM_GCCDR):  Deprecated.

        * gdbint.c (unmark_port, remark_port, gdb_read), procs.c
        (scm_mark_subr_table):  Use SCM_(SET|CLR)?GCMARK(P)? instead of
        SCM_(SET|CLR)?GC8MARK(P)?.

        * gh_data.c (gh_scm2char):  Remove bogus ';'.

        * tags.h:  Removed comment about GCTYP16 macro.

        * weaks.c (scm_mark_weak_vector_spines):  Use SCM_CDR instead of
        SCM_GCCDR.

2000-12-05  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * print.c (scm_iprin1):  Use scm_tc3_* codes instead of hardcoded
        values.  Added comment about tc3 codes that may appear in
        immediates.  Got rid of one goto command.

2000-12-05  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * dynl.c (sysdep_dynl_link):  Improved error reporting.

        * guardians.c:  Changed the representation from a compiled closure
        to an applicable smob.

        (guard1, CCLO_G):  Removed.

        (guard, g_mark, g_print, scm_tc16_guardian, scm_guardian_gc_init,
        scm_guardian_zombify):  Renamed to guardian_apply, guardian_mark,
        guardian_print, tc16_guardian, guardian_gc_init and
        guardian_zombify, respectively.

        (guardian_free):  Added, fixes a memory leak.

        (guardian_print):  Don't use sprintf hack.

        (guardian_apply, scm_guard, scm_get_one_zombie,
        scm_make_guardian):  Don't use a compiled closure.

        (guardian_zombify):  Prefer !SCM_NULLP over SCM_NIMP.  No need to
        use SCM_GCCDR any more.  Simplified loop condition.

        (scm_init_guardian):  Don't use scm_make_smob_type_mfpe for smob
        initialization.  Initialize applicable smob.

2000-12-04  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * chars.c (scm_char_eq_p):  Minor cleanup/optimization.

        * gc.c (scm_gc_mark):  Don't use SCM_VELTS for CCLOs.

        * procprop.c (scm_i_procedure_arity):  Separate handling of smobs
        and CCLOs.

2000-12-04  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * tags.h (scm_tc_free_cell, scm_tc16_big, scm_tc16_real,
        scm_tc16_complex):  Eliminate hard-coded value of scm_tc7_smob.

2000-12-01  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * list.[ch] (scm_c_memq):  Added as a fast C level alternative for
        scm_memq for the case that the list parameter is known to be a
        proper list.

        * goops.c (filter_cpl, remove_duplicate_slots, applicablep),
        goops.h (SCM_SUBCLASSP):  Use scm_c_memq if we are sure that we
        pass proper lists. 

2000-12-01  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * goops.c (scm_sys_compute_slots, scm_i_get_keyword,
        scm_get_keyword, scm_slot_ref_using_class,
        scm_slot_set_using_class_x):  Update the code to match guile's
        current style (e. g. using SCM_DEFINE, adding comments, removing
        unnecessary SCM_NIMP tests etc.).

2000-11-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        Thanks to Julian Satchell for the bug report:

        * coop-threads.c (scm_join_thread):  Check whether a thread is
        finished before trying to join it.

        * coop.c (coop_aborthelp, coop_join):  When a thread finishes, its
        stack base is not set to NULL any more.

2000-11-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * strop.c (scm_i_index):  Removed outdated comment.

2000-11-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * struct.c (scm_struct_ref, scm_struct_set_x), symbols.c
        (scm_intern_obarray_soft), symbols.h (SCM_ROUCHARS):  Eliminate
        use of SCM_SYMBOL_UCHARS by using chars instead of unsigned
        chars.

        (SCM_SYMBOL_UCHARS):  Removed.

2000-11-26  Gary Houston  <ghouston@arglist.com>

        * reimplementation of values, call-with-values as primitives:
        
        * values.c, values.h: new files.  use a struct to contain multiple
        values, similar to the previous Scheme-level implementation.
        * Makefile.am: add values.c, values.h, values.x.
        * continuations.c (continuation_apply): support R5RS multiple value
        continuations.
        * init.c: call scm_init_values.
        * struct.h: define SCM_SET_STRUCT_PRINTER.

2000-11-25  Gary Houston  <ghouston@arglist.com>

        * use an applicable SMOB to represent continuations, instead of a
        custom tc7 type.  This will make it easier to support R5RS
        multiple value continuations, without the use of a Scheme-level
        wrapper.

        * continuations.c (scm_tc16_continuation, continuation_mark,
        continuation_free, continuation_print, continuation_apply):
        new SMOB support.
        (scm_make_continuation): new procedure, replaces scm_make_cont
        with a different interface.
        (copy_stack_and_call, scm_dynthrow, scm_init_continuations): rewritten.
        (CHEAP_CONTINUATIONS): removed non-working code completely.
        (scm_call_continuation): removed.
        * continuations.h (struct scm_contregs): add num_stack_items and
        stack fields.  previously stack was stored following this struct:
        use a tail array instead.
        (SCM_CONTINUATIONP): new macro.
        (SCM_CONTINUATION_LENGTH, SCM_SET_CONTINUATION_LENGTH):
        rewritten.
        (SCM_SET_CONTREGS): removed.
        * tags.h: removed scm_tc7_contin (was tag 61).
        * debug.c, gc.c, hash.c, print.c, procprop.c, procs.c:
        removed scm_tc7_contin support.
        * eval.c: use scm_make_continuation instead of scm_make_cont.
        don't set jump buffers here.  remove scm_tc7_contin support.
        * init.c, root.c: create SMOB continuation for rootcont instead
        of scm_tc7_contin.  call scm_init_continuations before 
        scm_init_root.
        * root.c: remove support for static jmpbuf.  It's not used by
        default and I broke it.  create SMOB continuation for rootcont.
        * stacks.c: use SCM_CONTINUATIONP.

2000-11-24  Matthias Koeppe  <mkoeppe@mail.math.uni-magdeburg.de>

        * goops.c (filter_cpl, remove_duplicate_slots), goops.h
        (SCM_SUBCLASSP):  Fix previous change:  In contrast to
        scm_sloppy_memq the function scm_memq returns #f if the
        object was not contained in the list.

2000-11-24  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * goops.c:  Include validate.h.

        (DEFVAR, scm_add_method):  Don't use deprecated scm_eval2.

        (scm_sys_fast_slot_ref, scm_sys_fast_slot_set_x,
        scm_m_atdispatch):  Provide FUNC_NAME definition.  Don't use
        deprecated SCM_OUTOFRANGE macro.

        (scm_sloppy_num2ulong, scm_sys_logand):  Removed.  Guile's logand
        function now provides the desired behaviour.

        * goops.c (filter_cpl, remove_duplicate_slots), goops.h
        (SCM_SUBCLASSP):  Don't use deprecated scm_sloppy_memq.

2000-11-23  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * symbols.h (SCM_LENGTH_MAX):  Deprecated.

        * unif.c (scm_make_uve):  Use SCM_BITVECTOR_MAX_LENGTH and
        SCM_UVECTOR_MAX_LENGTH instead of SCM_LENGTH_MAX.  Postpone length
        checks for strings and vectors to their constructors.  Eliminate
        redundant SCM_IMP test.

        (scm_dimensions_to_uniform_array):  Postpone length checks to
        scm_make_uve.

        * unif.h (SCM_BITVECTOR_MAX_LENGTH, SCM_UVECTOR_MAX_LENGTH):
        Added.

2000-11-23  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gh_data.c (makvect), numbers.c (scm_mkbig, scm_adjbig),
        strings.c (scm_makstr, scm_take_str), symbols.c
        (scm_intern_obarray_soft, scm_sysintern0_no_module_lookup), unif.c
        (scm_make_uve), vectors.c (scm_make_vector): Use appropriate
        SCM_SET_<type>_(CHARS|BASE) macro instead of SCM_SETCHARS.

        * numbers.h (SCM_SET_BIGNUM_BASE), strings.h
        (SCM_SET_STRING_CHARS), symbols.h (SCM_SET_SYMBOL_CHARS), unif.h
        (SCM_SET_UVECTOR_BASE, SCM_SET_BITVECTOR_BASE), vectors.h
        (SCM_SET_VECTOR_BASE):  Added.

        * symbols.c (SCM_SETCHARS):  Deprecated.

2000-11-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_gc_sweep), unif.c (scm_make_uve):  Don't allocate or
        free memory for empty bitvectors.

        * gh_data.c (makvect), strings.c (scm_makstr, scm_take_str),
        symbols.c (scm_intern_obarray_soft,
        scm_sysintern0_no_module_lookup), unif.c (scm_make_uve):  Use
        appropriate SCM_SET_<type>_LENGTH macro instead of SCM_SETLENGTH.

        * strings.h (SCM_SET_STRING_LENGTH), symbols.h
        (SCM_SET_SYMBOL_LENGTH), unif.h (SCM_SET_UVECTOR_LENGTH,
        SCM_SET_BITVECTOR_LENGTH):  Added.

        * symbols.h (SCM_SETLENGTH):  Deprecated.

2000-11-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * continuations.c (scm_make_cont):  Use
        SCM_SET_CONTINUATION_LENGTH instead of SCM_SETLENGTH.

        * continuations.h (SCM_SET_CONTINUATION_LENGTH):  Added.

2000-11-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * vectors.c (scm_make_vector), weaks.c (scm_make_weak_vector):
        Use SCM_SET_VECTOR_LENGTH instead of SCM_SETLENGTH.

        * vectors.h (SCM_SET_VECTOR_LENGTH):  Added.

2000-11-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * dynl.c (scm_make_argv_from_stringlist), filesys.c (scm_dirname,
        scm_basename), gh_data.c (gh_scm2newstr, gh_get_substr), hash.c
        (scm_hasher), load.c (scm_parse_path, scm_search_path,
        scm_primitive_load_path), numbers.c (scm_string_to_number),
        ports.c (scm_unread_string), posix.c (scm_convert_exec_args,
        environ_list_to_c, scm_putenv), print.c (scm_iprin1,
        scm_simple_format), random.c (scm_seed_to_random_state), socket.c
        (scm_fill_sockaddr, scm_send, scm_sendto), strings.c
        (scm_string_ref, scm_substring, scm_string_append), strings.h
        (SCM_STRING_COERCE_0TERMINATION_X), strop.c (scm_i_index,
        scm_string_to_list, scm_string_copy), strorder.c
        (scm_string_equal_p, scm_string_ci_equal_p, scm_string_less_p,
        scm_string_ci_less_p), strports.c (scm_mkstrport), struct.c
        (scm_make_struct_layout), symbols.c (scm_string_to_symbol,
        scm_string_to_obarray_symbol, scm_gensym, scm_gentemp):  Replace
        calls to SCM_ROU?CHARS with the corresponding call to
        SCM_STRING_U?CHARS.

        * symbols.h (SCM_ROCHARS, SCM_ROUCHARS):  Deprecated.

2000-11-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * ports.c:  Include eval.h.

        * strings.c (scm_string_set_x), strings.h (SCM_RWSTRINGP),
        validate.h (SCM_VALIDATE_RWSTRING):  Deprecate SCM_RWSTRINGP and
        SCM_VALIDATE_RWSTRING.

        * strings.h (SCM_STRING_UCHARS, SCM_STRING_CHARS):  Handle strings
        and substrings uniformly.  However, substring handling is
        deprecated.

        (SCM_RWSTRINGP):  Deprecated.

2000-11-18  Gary Houston  <ghouston@arglist.com>

        * Makefile.am (.c.x): don't prefix ".:" to $PATH when running
        guile-doc-snarf.  it doesn't seem to do anything useful, but would
        fail if $PATH contained whitespace.  Thanks to Lars J. Aas.

2000-11-17  Marius Vollmer  <mvo@zagadka.ping.de>

        * alist.c, arbiters.c, async.c, backtrace.c, boolean.c, chars.c,
        continuations.c, debug-malloc.c, debug.c, dynl.c, dynwind.c,
        environments.c, eq.c, error.c, eval.c, evalext.c, feature.c,
        filesys.c, fluids.c, fports.c, gc.c, goops.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,
        read.c, regex-posix.c, root.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,
        tag.c, threads.c, throw.c, unif.c, variable.c, vectors.c,
        version.c, vports.c, weaks.c: Makes sure the snarfer output
        inclusion is disabled when the snarfer is run on the file.  Thanks
        to Lars J. Aas!

        * Makefile.am: Install guile-procedures.txt in version-specific
        directory to enable multiple installed guile versions.  Suggested
        by Karl M. Hegbloom <karlheg@debian.org, patch by Matthias Koeppe.

2000-11-13  Gary Houston  <ghouston@arglist.com>

        * fports.c: include gc.h.
        (fport_flush, fport_close): silently ignore I/O errors when
        closing a port during gc.  it's better than aborting in scm_error.

        * throw.c (scm_handle_by_message): remove obsolete comment.

2000-11-12  Gary Houston  <ghouston@arglist.com>

        * fports.c (scm_open_file): fix the 'b' option.  Thanks
        to George Caswell.

2000-11-09  Gary Houston  <ghouston@arglist.com>

        * ports.c, ports.h (scm_close_all_ports_except): deprecated.
        use port-for-each.  Updated its docstring.

2000-11-07  Gary Houston  <ghouston@arglist.com>

        * ports.c (scm_port_for_each): new proc.  implements port-for-each,
        which applies a procedure to each port in the port table.
        ports.h: declare scm_port_for_each.

        * ioext.c (scm_dup2): new proc.  implements "dup2" which is a simple
        wrapper for the dup2 system call (unlike dup->fdes or
        primitive-move->fdes).
        * ioext.h: declare scm_dup2.

        * filesys.c (scm_close_fdes): new proc.  implements "close-fdes"
        which is a simple wrapper for close system call (unlike scm_close).
        * filesys.h: declare for scm_close_fdes.

2000-11-06  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * eval.c (SCM_IM_DISPATCH), objects.c (scm_mcache_lookup_cmethod):
        Count n_specialized + 1 turns before letting a match through.

        * goops.c (scm_sys_invalidate_method_cache_x): Don't convert
        scm_si_n_specialized from fixnum and don't take absolute value.
        (Thanks to Lars J. Aas.)

2000-11-04  Gary Houston  <ghouston@arglist.com>

        * ports.c (scm_port_p): new function, implements "port?" which
        is mentioned in R5RS.
        * ports.h: declare scm_port_p.

2000-11-01  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * backtrace.c (display_expression, display_error_body), fports.c
        (prinfport), print.c (scm_iprin1):  Test for symbols and strings
        explicitly instead of using SCM_ROSTRINGP.

        * backtrace.c (scm_display_error_message):  Don't pass a symbol to
        scm_simple_format.  Prefer high-level output functions.

        (display_error_body):  When displaying procedure names, give
        preference to the name passed as a parameter.  Only if none is
        given extract a name from the stack information.

        * fports.c (scm_fdes_to_port, prinfport), gc.c (scm_gc_mark),
        ports.c (scm_port_filename, scm_set_port_filename_x):  Use
        SCM_(SET_)?FILENAME.

        * gh_data.c (gh_set_substr, gh_scm2newstr, gh_get_substr,
        gh_symbol2newstr):  Use scm_remember instead of a pair of calls to
        scm_protect/unprotect_object.

        * goops.c (make_struct_class), objects.c (scm_class_of):  Struct
        table names are symbols.

        * ports.h (SCM_SET_FILENAME):  Added.

        * print.c (scm_iprin1):  Don't use scm_puts to write symbols or
        strings in order to treat substrings right.  Reposition call to
        scm_remember after the last use of object's data.

        (scm_simple_format):  Treat messages that are substrings right.

        * symbols.h (SCM_ROSTRINGP):  Deprecated.

2000-11-01  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * environments.c (obarray_replace, obarray_retrieve,
        obarray_remove):  Don't use '==' to compare SCM objects.

        * posix.c (scm_getgroups):  Don't create a redundant string.

2000-11-01  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * symbols.c (scm_sym2vcell, scm_sym2ovcell_soft,
        scm_intern_symbol, scm_unintern_symbol):  Symbol objects already
        hold their hash values, no need to recompute them.

        (scm_intern_obarray_soft):  Speed up search for a matching symbol
        by comparing the hash values first.

2000-10-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * unif.c (scm_make_uve, scm_dimensions_to_uniform_array):  Don't
        allow vectors longer than SCM_LENGTH_MAX. This removes the
        SCM_HUGE_LENGTH trick, i. e. storing a vector length greater than
        SCM_LENGTH_MAX at the beginning of the vector's memory.  Since not
        all of guile's code was implemented to be aware of this trick, it
        is unlikely that it was used anyway.  We can implement such a
        feature more cleanly by using double cells for uniform vector
        types.

        (scm_shap2ra):  Replace SCM_IMP and SCM_NIMP tests by more
        straightforward predicates.

        (scm_dimensions_to_uniform_array):  Require that for dimensions
        given as lower-bound/upper-bound pairs the upper-bound is never
        less than the lower bound.

2000-10-27  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * dynl.c (scm_dynamic_link, scm_dynamic_func, scm_dynamic_call,
        scm_dynamic_args_call), 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_read_delimited_x, scm_fdopen), load.c
        (scm_primitive_load, scm_parse_path, scm_search_path,
        scm_sys_search_load_path, scm_primitive_load_path), net_db.c
        (scm_inet_aton, scm_gethost, scm_getnet, scm_getproto,
        scm_getserv), numbers.c (scm_string_to_number), ports.c
        (scm_truncate_file, scm_sys_make_void_port), posix.c
        (scm_getpwuid, scm_getgrgid, scm_execl, scm_execlp,
        environ_list_to_c, scm_execle, scm_utime, scm_access,
        scm_setlocale, scm_mknod), regex-posix.c (scm_make_regexp),
        simpos.c (scm_system, scm_getenv), socket.c (scm_fill_sockaddr,
        scm_send, scm_sendto), stime.c (scm_strftime, scm_strptime),
        strop.c (scm_i_index, scm_string_null_p, scm_string_to_list),
        strports.c (scm_mkstrport), symbols.c
        (scm_string_to_obarray_symbol), vports.c (scm_make_soft_port):
        Don't accept symbols as input parameters.  Use SCM_STRING_LENGTH
        instead of SCM_ROLENGTH.

        * 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_inet_aton, 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_utime, scm_access,
        scm_setlocale, scm_mknod), regex-posix.c (scm_make_regexp,
        scm_regexp_exec), simpos.c (scm_system, scm_getenv), stime.c
        (setzone, scm_strftime, scm_strptime), vports.c
        (scm_make_soft_port):  Use SCM_STRING_COERCE_0TERMINATION_X to
        make sure the characters of a string are followed by a \0.
        Further, use SCM_STRING_CHARS instead of SCM_ROCHARS on the
        resulting string.

        * dynl.c (scm_make_argv_from_stringlist), posix.c
        (scm_convert_exec_args):  Aligned to match each other.

        * dynl.c (scm_coerce_rostring):  Removed.

        (scm_dynamic_func):  Changed the comment to reflect that the
        function name has to be a string.  Further, hide implementation
        details from the scheme comment.

        * error (scm_error_scm):  Don't accept a symbol as message
        parameter.  Fix substring handling.

        * posix.c (environ_list_to_c):  Use memcpy to copy environment
        strings.  Handle substrings which don't have a trailing \0.

        * symbols.h (SCM_LENGTH, SCM_ROLENGTH, SCM_SUBSTRP,
        SCM_SUBSTR_STR, SCM_SUBSTR_OFFSET, SCM_COERCE_SUBSTR):
        Deprecated.

        * unif.h (SCM_HUGE_LENGTH):  Deprecated.

        * validate.h (SCM_VALIDATE_ROSTRING, SCM_VALIDATE_ROSTRING_COPY,
        SCM_VALIDATE_NULLORROSTRING_COPY):  Deprecated.

2000-10-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * random.c:  Include unif.h.

        * strings.h (SCM_STRING_COERCE_0TERMINATION_X):  Added.  This is
        intended to replace the macro SCM_COERCE_SUBSTR.  Such a macro
        will be necessary, even after copy-on-write strings will be added
        to guile, but the current naming is inappropriate.

        * strorder.c (scm_string_equal_p, scm_string_ci_equal_p,
        scm_string_less_p, scm_string_ci_less_p):  Don't accept symbols as
        input parameters.  Further, the functions that test for equality
        are rewritten to compare from back to front, the others are also a
        little bit more polished.

2000-10-25  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        This change merges the GOOPS code into Guile.  However, GOOPS
        is still not initialized until someone asks for the module.
        We need to optimize GOOPS initialization time before initializing
        it together with the rest of libguile.  We also need to add the
        C API + primitive methods.  Then we can start using it to
        modularize Guile, implement a real exception system etc.

        * goops.c, objects.c, objects.h, eval.c (scm_make_extended_class,
        scm_make_port_classes, scm_change_object_class,
        scm_memoize_method): Changed to ordinary functions (was plugin
        slots).

        * goops.c (wrap_init, scm_wrap_object): Unconditionally use
        SCM_STRUCT_GC_CHAIN.
        (scm_goops_version): Removed.
        (scm_oldfmt): and all uses of it: Removed.
        (scm_shared_array_root, scm_shared_array_offset,
        scm_shared_array_increments): Removed.
        (scm_init_goops): No need to support two arg mutex init.
        Removed #include "versiondat.h", #include "goops.h".

        * goops.h: Removed various superfluous conditions.
        Renamed class --> cls, new --> newinst in order to accomodate
        C++.

        * init.c (scm_init_guile_1): Call the goops module registration
        function.
        Added #include "libguile/goops.h".

        * Makefile.am (libguile_la_SOURCES): Added goops.c
        (DOT_X_FILES): Added goops.x
        (DOT_DOC_FILES): Added goops.doc
        (modinclude_HEADERS): Added goops.h

2000-10-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_igc):  Remove references to scm_vector_set_length_x.

        (scm_gc_sweep):  SCM_CONTREGS is never NULL.

        * gc.c (scm_gc_sweep), vectors.c (scm_make_vector):  Don't
        allocate/free memory for zero length vectors.

        * vectors.[ch] (scm_vector_set_length_x):  Deprecated.

2000-10-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * alist.c (scm_assq_ref):  Add a suggestion about how to deal with
        this function when the API gets reviewed.

        * async.c (SET_ASYNC_GOT_IT):  Use SCM_TYP16 instead of doing bit
        operations directly.

        * dynl.c (scm_coerce_rostring), filesys.c (scm_link,
        scm_copy_file), fports (scm_open_file), hash.c (scm_hasher),
        posix.c (scm_getpwuid), print.c (scm_iprin1), simpos.c
        (scm_system), strings.c (scm_string_ref, scm_substring,
        scm_string_append), strop.c (scm_string_copy), struct.c
        (scm_make_struct_layout), symbols.c (scm_gensym, scm_gentemp),
        symbols.h (SCM_COERCE_SUBSTR):  Use SCM_STRING_LENGTH instead of   
        SCM_ROLENGTH if the object is known to be a string or substring.

        * eval.c (scm_lookupcar):  Use SCM_ITAG7 instead of doing bit
        operations directly.

        * filesys.c (scm_dirname, scm_basename):  Don't create shared
        substrings as these are going to disappear from guile.

        * gc.c (scm_gc_sweep):  Use SCM_UVECTOR_LENGTH instead of
        SCM_HUGE_LENGTH.  (The SCM_HUGE_LENGTH mechanism does not work
        correctly anyway.)

        * gc.h (SCM_FREEP, SCM_NFREEP):  Deprecated.

        * read.c (scm_flush_ws):  Don't compare SCM values directly.

        * root.c (scm_make_root), root.h (scm_root_state):  Removed
        system_transformer and top_level_lookup_closure_var from struct.
        (Since eval is now R5RS, binary compatibility is not granted
        anyway.)

        * simpos.c (scm_system):  Fix condition.

        * strings.c (scm_string_length, scm_string_ref, scm_substring,
        scm_string_append), strop.c (scm_string_copy), struct.c
        (scm_make_struct_layout, scm_make_vtable_vtable), symbols.c
        (scm_gensym, scm_gentemp):  Replace SCM_VALIDATE_STRINGORSUBSTR
        with SCM_VALIDATE_STRING, since they do the same thing.

        * strings.h (scm_make_shared_substring):  Deprecated.

        * tags.h (SCM_ITAG7):  Added.

        * validated.h (SCM_VALIDATE_STRINGORSUBSTR):  Deprecated.

2000-10-20  Marius Vollmer  <mvo@zagadka.ping.de>

        * init.c (scm_init_guile_1, invoke_main_func): Call
        scm_load_startup_files in scm_init_guile_1, not in
        invoke_main_func.

2000-10-18  Marius Vollmer  <mvo@zagadka.ping.de>

        * print.c (grow_ref_stack): Pass a INUM to scm_make_vector as the
        size, not a naked int.  Thanks to Brad Knotwell!

        * gc_os_dep.c (GC_noop1, GC_bool, TRUE, FALSE, VOLATILE):
        Definitions copied from Boehm collector.

2000-10-13  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * list.[ch] (scm_sloppy_memq, scm_sloppy_memv, scm_sloppy_member):
        Deprecated.

        (scm_memq, scm_memv, scm_member):  Inline the sloppy code.

2000-10-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * alloca.c:  Fixed include file path.  Thanks to Bruce Korb for
        the bug report.

2000-10-11  Marius Vollmer  <mvo@zagadka.ping.de>

        * gc_os_dep.c: Added real implementation based on code from Boehms
        collector.  This is not well tested yet.

        * gc.h (scm_get_stack_base): Added prototype.
        * init.c (scm_get_stack_base): Removed prototype.

2000-10-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * random.c (scm_seed_to_random_state):  Replace SCM_LENGTH with
        the appropriate SCM_<type>_LENGTH macro.

        (vector_scale, vector_sum_squares, scm_random_solid_sphere_x,
        scm_random_normal_vector_x):  Use scm_uniform_vector_length to
        determine the length of a vector object generically.

2000-10-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * ramap.c (scm_array_fill_int, scm_array_index_map_x):  Replace
        SCM_LENGTH with the appropriate SCM_<type>_LENGTH macro.

        (scm_ra_matchp, scm_ramapc, ramap, rafe, scm_array_index_map_x,
        raeql_1, raeql):  Use scm_uniform_vector_length to determine the
        length of a vector object generically.

2000-10-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * unif.c (scm_make_uve, scm_uniform_vector_length, scm_array_p,
        scm_transpose_array, scm_array_contents, scm_ra2contig,
        scm_uniform_array_read_x, scm_uniform_array_write, scm_bit_count,
        scm_bit_position, scm_bit_set_star_x, scm_bit_count_star,
        scm_bit_invert_x, scm_array_to_list, scm_raprin1):  Replace
        SCM_LENGTH with the appropriate SCM_<type>_LENGTH macro.

        (scm_array_dimensions, scm_make_shared_array, scm_enclose_array,
        scm_array_in_bounds_p, scm_uniform_vector_ref, scm_array_set_x,
        scm_array_contents, scm_uniform_array_read_x,
        scm_uniform_array_write, scm_list_to_uniform_array, rapr1):  Use
        scm_uniform_vector_length to determine the length of a vector
        object generically.

        (scm_bit_count, scm_bit_set_star_x, scm_bit_count_star,
        scm_bit_invert_x): Eliminated dummy type dispatch. 

        (scm_ra2contig):  Fixed array vector access.

2000-10-10  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * unif.h (SCM_BITVECTOR_P, SCM_BITVECTOR_BASE):  Added.

        * eval.c (iqq, SCM_CEVAL, SCM_APPLY, check_map_args, scm_map,
        scm_for_each, scm_copy_tree), gc.c (scm_igc, scm_gc_mark,
        scm_gc_sweep), gh_data.c (gh_scm2chars), sort.c
        (scm_restricted_vector_sort_x, scm_sorted_p, scm_sort_x,
        scm_sort, scm_stable_sort_x, scm_stable_sort), vectors.c
        (scm_vector_length, scm_vector_ref, scm_vector_set_x,
        scm_vector_to_list, scm_vector_fill_x, scm_vector_equal_p,
        scm_vector_move_left_x, scm_vector_move_right_x, ):  Replace
        SCM_LENGTH with the appropriate SCM_<type>_LENGTH macro.

        * gc.c (scm_gc_sweep):  Use SCM_BITVECTOR_BASE for bitvectors.

        * sort.c (scm_restricted_vector_sort_x, scm_sorted_p):  Eliminated
        dummy type dispatch.

        (scm_sort_x, scm_sort, scm_stable_sort_x, scm_stable_sort):
        Eliminated redundant NIM test.

2000-10-09  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * filesys.c (fill_select_type, retrieve_select_type, scm_select),
        gh_data.c (gh_set_substr, gh_scm2chars, gh_scm2shorts,
        gh_scm2longs, gh_scm2floats, gh_scm2doubles, gh_symbol2newstr),
        stime.c (bdtime2c), symbols.c (scm_sym2vcell, scm_sym2ovcell_soft,
        scm_intern_obarray_soft, scm_symbol_to_string, scm_intern_symbol,
        scm_unintern_symbol, copy_and_prune_obarray, scm_builtin_bindings,
        scm_builtin_weak_bindings), validate.h (SCM_VALIDATE_VECTOR_LEN):
        Replace SCM_LENGTH with the appropriate SCM_<type>_LENGTH macro.

        * filesys.c (scm_dirname, scm_basename), gh_data.c (gh_scm2newstr,
        gh_get_substr), posix.c (scm_putenv), regex-posix.c
        (scm_regexp_exec), stime.c (setzone), symbols.c
        (scm_string_to_symbol):  Don't accept symbols as input parameters
        any more.

2000-10-09  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * continuations.c (scm_make_cont, copy_stack_and_call,
        scm_dynthrow), environments.c (obarray_enter, obarray_replace,
        obarray_retrieve, obarray_remove, obarray_remove_all,
        leaf_environment_fold), fluids.c (grow_fluids, scm_copy_fluids,
        scm_fluid_ref, scm_fluid_set_x), hash.c (scm_hasher), hashtab.c
        (scm_hash_fn_get_handle, scm_hash_fn_create_handle_x,
        scm_hash_fn_remove_x, scm_internal_hash_fold), ioext.c
        (scm_read_delimited_x), objects.c (scm_mcache_lookup_cmethod,
        scm_make_subclass_object), ports.c (scm_unread_string), socket.c
        (scm_recv, scm_recvfrom), stacks.c (scm_make_stack, scm_stack_id,
        scm_last_stack_frame), strings.c (scm_string_length,
        scm_string_set_x), strop.c (scm_substring_move_x,
        scm_substring_fill_x, scm_string_fill_x, scm_string_upcase_x,
        scm_string_downcase_x, scm_string_capitalize_x), struct.c
        (scm_struct_init, scm_struct_vtable_p, scm_make_struct,
        scm_make_vtable_vtable, scm_struct_ref, scm_struct_set_x), weaks.c
        (scm_mark_weak_vector_spines, scm_scan_weak_vectors):  Replace
        SCM_LENGTH with the appropriate SCM_<type>_LENGTH macro.

2000-10-09  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * print.c (make_print_state, scm_iprin1):  Replace SCM_LENGTH with
        the appropriate SCM_<type>_LENGTH macro.

        (grow_ref_stack):  Don't call scm_vector_set_length_x to resize
        the print stack.

2000-10-09  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (big2str):  Avoid redundant copying.

        (scm_bigprint):  Use SCM_STRING_LENGTH instead of SCM_LENGTH.

2000-10-06  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (big2str), read.c (scm_grow_tok_buf), strports.c
        (st_resize_port):  Don't call scm_vector_set_length_x to resize
        strings.

        * read.c (scm_lreadr, scm_read_token):  Use SCM_STRING_LENGTH for
        string arguments (instead of SCM_LENGTH).

2000-10-06  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * continuations.h (SCM_CONTINUATION_LENGTH), strings.h
        (SCM_STRING_LENGTH), symbols.h (SCM_SYMBOL_LENGTH), unif.h
        (SCM_UVECTOR_LENGTH, SCM_BITVECTOR_LENGTH), vectors.h
        (SCM_VECTOR_LENGTH):  Added as replacements for SCM_LENGTH.

2000-10-02  Marius Vollmer  <mvo@zagadka.ping.de>

        * coop-defs.h (coop_key_create): Don't use the C++ keyword
        `destructor' in prototype.  Thanks to Martin Baulig!

2000-10-02  Michael Livshin  <mlivshin@bigfoot.com>

        * guile-func-name-check.in: now should not confuse SCO nawk
        anymore.  thanks to Bruce Korb for the fix!

2000-10-01  Gary Houston  <ghouston@arglist.com>

        * net_db.c: declare inet_aton only if HAVE_INET_ATON is not
        defined.  thanks to Han-Wen Nienhuys.

2000-09-30  Gary Houston  <ghouston@arglist.com>

        * filesys.c (scm_stat2scm), posix.c (s_scm_mknod): don't use
        S_ISSOCK or S_IFSOCK if not defined.  thanks to Bruce Korb.

2000-09-29  Neil Jerram  <neil@ossau.uklinux.net>

        * Makefile.am (guile-procedures.txt): Insert a new rule such that
        the output from guile-snarf.awk is processed by makeinfo to
        produce guile-procedures.txt.

        * guile-snarf.awk.in: Modify the way we snarf docstrings such that
        the output is Texinfo-compliant and suitable for post-processing
        with makeinfo.  (Trim leading "./" from C file name if
        present; reformat procedure prototype line in @deffn format;
        improve representation of args to show optional and rest args;
        explicitly quote quotation marks where they are used inside an AWK
        regexp.)

        * net_db.c (scm_inet_ntoa): Docstring fix: missing newline
        inserted.

        * hashtab.c (scm_hashx_create_handle_x, scm_hashx_ref): Insert
        spaces between C parameters so that the snarfer doesn't coalesce
        them all into a single very long-named parameter.

2000-09-27  Neil Jerram  <neil@ossau.uklinux.net>

        * list.c (scm_append): Use @example texinfo markup in docstring.

2000-09-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * strings.c (scm_string, scm_make_string, scm_string_set_x,
        scm_string_append), strop.c (scm_string_upcase_x,
        scm_string_downcase_x), strports.c (st_resize_port), symbols.c
        (scm_sym2vcell, scm_sym2ovcell_soft, scm_intern_obarray_soft,
        scm_intern_symbol, scm_unintern_symbol), unif.c (scm_cvref,
        scm_uniform_vector_ref, scm_array_set_x, rapr1):  Replace calls to
        SCM_UCHARS with SCM_STRING_UCHARS or SCM_SYMBOL_UCHARS.

        * symbols.h (SCM_UCHARS):  Deprecated.

2000-09-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_gc_sweep):  Replace SCM_CHARS by SCM_COMPLEX_MEM.

        * numbers.h (SCM_COMPLEX_MEM):  Added as a replacement for
        SCM_CHARS.

        (SCM_COMPLEX_REAL, SCM_COMPLEX_IMAG):  Use it.

        * ramap.c (scm_array_fill_int, racp, raeql_1):  Replace SCM_CHARS
        with SCM_STRING_CHARS or SCM_UVECTOR_BASE.

        (racp):  Fix: Make sure that src and dst types match.

        * read.c (scm_grow_tok_buf, scm_lreadr, scm_read_token):  Replace
        SCM_CHARS with SCM_STRING_CHARS.

        * symbols.h (SCM_CHARS):  Deprecated.

        * unif.c (scm_enclose_array, scm_uniform_vector_ref, scm_cvref,
        scm_array_set_x, scm_uniform_array_read_x, rapr1, freera,
        scm_uniform_array_write):  Replace SCM_CHARS with
        SCM_STRING_CHARS, SCM_UVECTOR_BASE or SCM_ARRAY_MEM.

        * unif.h (SCM_ARRAY_MEM):  Added as a replacement for SCM_CHARS.

        (SCM_ARRAY_V, SCM_ARRAY_BASE, SCM_ARRAY_DIMS):  Use it.

        * validate.h (SCM_COERCE_ROSTRING):  Removed.

2000-09-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_igc):  :  Eliminate references to SCM_LENGTH and
        SCM_CHARS from comment.

        (scm_gc_mark, scm_gc_sweep):  Replace SCM_CHARS with
        SCM_SYMBOL_CHARS or SCM_CCLO_BASE or SCM_UVECTOR_BASE or
        SCM_BDIGITS, and replace SCM_VELTS with SCM_VECTOR_BASE or
        SCM_CONTREGS, according to the corresponding types.

        (scm_gc_sweep):  Simplify sweeping of uniform vectors.

2000-09-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * procs.h (SCM_CCLO_LENGTH, SCM_SET_CCLO_LENGTH, SCM_CCLO_BASE,
        SCM_SET_CCLO_BASE, SCM_CCLO_REF, SCM_CCLO_SET, SCM_CCLO_SUBR,
        SCM_SET_CCLO_SUBR):  Added resp. changed such that none of the
        macros SCM_CHARS, SCM_SETCHARS, SCM_VELTS and SCM_LENGTH have to
        be used with compiled closures any more.

        * procs.c (scm_makcclo), gsubr.h (SCM_GSUBR_TYPE, SCM_GSUBR_PROC):
        Replace uses of SCM_CHARS, SCM_SETCHARS and SCM_VELTS with regards
        to compiled closures.

        * gsubr.h (SCM_SET_GSUBR_TYPE, SCM_SET_GSUBR_PROC):  Added.

        * gsubr.c (scm_make_gsubr):  Use them.

2000-09-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_adjbig):  Use SCM_BDIGITS instead of SCM_CHARS.

        (big2str, scm_bigprint):  Use SCM_STRING_CHARS instead of
        SCM_CHARS.

        * vectors.c (scm_vector_set_length_x):  Distinguish between
        strings, scheme vectors and uniform vectors, thus getting rid of
        references to SCM_CHARS.  (The code still needs improvement.)

2000-09-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_m_letrec1, SCM_CEVAL, SCM_APPLY):  Use
        SCM_STRING_U?CHARS or SCM_SYMBOL_U?CHARS instead of SCM_U?CHARS.

        * unif.h (SCM_UVECTOR_BASE), vectors.h (SCM_VECTOR_BASE):  Added
        as replacements for SCM_CHARS and SCM_VELTS.

2000-09-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * continuations.c (scm_make_cont, scm_dynthrow), print.c
        (scm_iprin1), stacks.c (scm_make_stack, scm_stack_id,
        scm_last_stack_frame):  For continuations, use SCM_CONTREGS
        instead of SCM_CHARS.

        * coop-threads.c (scm_threads_mark_stacks):  Eliminate references
        to SCM_LENGTH and SCM_CHARS from comments.

        * dynl.c (scm_dynamic_link, scm_dynamic_func), symbols.h
        (SCM_ROCHARS, SCM_ROUCHARS):  Cleanly distinguish between string
        and symbol arguments.

        * hash.c (scm_hasher), keywords.c (prin_keyword), objects.c
        (scm_make_subclass_object), print.c (scm_iprin1), regex-posix.c
        (scm_regexp_error_msg), stime.c (bdtime2c, scm_strftime), struct.c
        (scm_struct_init, scm_struct_vtable_p, scm_struct_ref,
        scm_struct_set_x):  Use SCM_STRING_U?CHARS or SCM_SYMBOL_U?CHARS
        instead of SCM_U?CHARS.

        * strings.h (SCM_STRING_UCHARS):  Added as a replacement for
        SCM_UCHARS for string arguments.

        * strorder.c:  Include strings.h and symbols.h.

        * symbols.h:  Replaced SCM_CHARS in comment.

        (SCM_SYMBOL_UCHARS):  Added as a replacement for SCM_UCHARS for
        symbol arguments.

        (SCM_SLOPPY_SUBSTRP):  Deprecated.

        * tags.h:  Fixed comments not to reference SCM_LENGTH or
        SCM_CHARS.

2000-09-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_gc_mark, scm_gc_sweep), tags.h:  Removed the
        scm_tc7_lvector type tag.

2000-09-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_m_define), evalext.c (scm_m_undefine):  Removed dead
        code.

        * gc.c (scm_gc_sweep):  Use SCM_STRING_CHARS or SCM_SYMBOL_CHARS
        instead of SCM_CHARS.

2000-09-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * backtrace.c (display_frame_expr), environments.c
        (print_observer, print_leaf_environment, print_eval_environment,
        print_import_environment, print_export_environment), gh_data.c
        (gh_set_substr, gh_symbol2newstr), keywords.c
        (scm_make_keyword_from_dash_symbol), ports.c (scm_drain_input),
        posix.c (scm_mknod), print.c (scm_iprin1), regexp-posix.c
        (scm_regexp_error_msg), script.c (scm_compile_shell_switches),
        simpos.c (scm_getenv), socket.c (scm_recv, scm_recvfrom),
        strings.c (scm_makfromstr), strop.c (scm_substring_move_x,
        scm_substring_fill_x, scm_string_capitalize_x), symbols.c
        (scm_symbol_to_string), unif.c (scm_make_uve, scm_array_p),
        validate.h (SCM_VALIDATE_STRING_COPY):  Use SCM_STRING_CHARS or
        SCM_SYMBOL_CHARS instead of SCM_CHARS.

2000-09-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * strings.h (SCM_STRING_CHARS):  Added, should be used instead of
        SCM_CHARS whenever the argument is known to be a string.

        (SCM_SLOPPY_STRINGP):  Deprecated.

        * symbols.h (SCM_SYMBOL_CHARS):  Added, should be used instead of
        SCM_CHARS whenever the argument is known to be a symbol.

2000-09-22  Neil Jerram  <neil@ossau.uklinux.net>

        * struct.c (scm_make_struct): Fix texinfo warning in docstring by
        using @pxref rather than @xref.

        * root.c (scm_call_with_dynamic_root): Fix texinfo warning in
        docstring by using @code for (thunk) rather than @var.

2000-09-20  Marius Vollmer  <mvo@zagadka.ping.de>

        * numbers.c (scm_istr2flo): Throw an `out of range' error when
        exponent is too large instead of returning `#f'.  The rationale is
        that in this case the string represents a valid number but we
        can't deal with it.

2000-09-20  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * symbols.c (scm_intern_obarray_soft,
        scm_sysintern0_no_module_lookup):  Make sure that symbol
        properties initially form an empty list.  Thanks to Keisuke
        Nishida for pointing this out.

2000-09-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * throw.c (scm_handle_by_message):  Added a FIXME comment.

        (scm_ithrow):  Removed some redundant tests.  When compiling on
        gcc, always add the GCSE bug workaround.

2000-09-14  Gary Houston  <ghouston@arglist.com>

        * print.c (scm_iprin1): write the ascii delete character as #\del
        instead of '#\', so it can be read back.  like in SCM.

2000-09-12  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * symbols.c (duplicate_string): Don't try to copy the byte after
        the string.  This might not be `\0' and might even not be
        allocated memory.

2000-09-12  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * symbols.c (scm_symbol_p):  Eliminate redundant SCM_IMP test.

2000-09-12  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        This patch unifies the formerly distinct ssymbol and msymbol types
        to a common symbol type scm_tc7_symbol.  The representation of the
        new symbol type uses a double cell with the following layout:
        <type/length, chars, raw_hash, prop-pair>, where the car of
        prop-pair holds the symbol's function property and the cdr of
        prop-pair holds the symbol's other properties.  In the long run,
        these properties will be removed.  Then, the generic property
        functions will be uses.

        * eval.c (SCM_CEVAL), objects.c (scm_class_of), print.c
        (scm_iprin1), tag.c (scm_tag):  Use scm_tc7_symbol instead of
        scm_tc7_ssymbol, scm_tc7_msymbol or scm_tcs_symbols.

        * gc.c (scm_gc_mark):  Mark the symbols property pair.

        (scm_gc_sweep):  There are no symbol slots any more.

        * hash.c (scm_hasher):  Instead of re-calculating the hash value
        of a symbol, use the raw_hash value stored in the symbol itself.

        * properties.h:  Fix typo.

        * strings.[ch] (scm_makstr, scm_makfromstr):  The slot parameter
        is not used any more.

        * symbols.[ch] (scm_strhash):  Deprecated, replaced by a macro.

        (scm_intern_obarray_soft):  Made softness parameter unsigned.

        (scm_string_hash):  New function with the same functionality as
        scm_strhash had before, except that the hash value is not adjusted
        to a hash table size.  Instead, the 'raw' hash value is returned.

        * symbols.c (duplicate_string):  New static convenience function.

        (scm_sym2vcell, scm_sym2ovcell_soft, scm_intern_obarray_soft):
        Renamed local variable from scm_hash to hash.

        (scm_intern_obarray_soft):  Don't check for a negative softness
        any more.  When generating symbol cells, use the new layout and
        store the raw hash value in the symbol's cell.

        (scm_symbol_to_string):  Removed unnecessary cast.

        (scm_intern_symbol, scm_unintern_symbol):  Use scm_string_hash to
        determine the hash values.

        (msymbolize):  Removed.

        (scm_symbol_fref, scm_symbol_pref, scm_symbol_fset_x,
        scm_symbol_pset_x, scm_symbol_hash):  No need to distinguish
        between different symbol types any more.

        (scm_symbol_hash):  Comment fixed.

        * symbols.h:  Comment about the distinction between ssymbols and
        msymbols removed.

        (SCM_SYMBOLP, SCM_ROSTRINGP):  No need to distinguish between
        different symbol types any more. 

        (SCM_PROP_SLOTS, SCM_SET_PROP_SLOTS):  Added.

        (SCM_SYMBOL_FUNC, SCM_SET_SYMBOL_FUNC, SCM_SYMBOL_PROPS,
        SCM_SET_SYMBOL_PROPS, SCM_SYMBOL_HASH, SCM_SET_SYMBOL_HASH):  Use
        the new symbol cell layout.

        * tags.h (scm_tc7_ssymbol, scm_tc7_msymbol, scm_tcs_symbols):
        Deprecated.

2000-09-12  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * symbols.h (scm_gentemp): Declared.

        * symbols.c (scm_gensym): Reimplemented.  Now only takes one
        optional argument which should be a *string*.
        (scm_gentemp): Reimplemented and moved from boot-9.scm.

2000-09-10  Keisuke Nishida  <kxn30@po.cwru.edu>

        * modules.c: Use applicable smobs for eval closures instead of
        compiled closures.  Include "libguile/smob.h".
        (f_eval_closure): Removed.
        (scm_eval_closure_tag): New variable.
        (scm_eval_closure_lookup): Renamed from eval_closure.
        This function now takes a smob instead of a compiled closure.
        (scm_standard_eval_closure): Create a smob instead of a compiled
        closure.
        (scm_init_modules): Initialize the eval closure type as a smob.
        * modules.h (SCM_EVAL_CLOSURE_P): New macro.
        (scm_eval_closure_tag, scm_eval_closure_lookup): Declare.
        * symbols.c: Include "libguile/smob.h".
        (scm_sym2vcell): Call scm_eval_closure_lookup directly if THUNK
        is an eval closure.

2000-09-10  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * Makefile.am (.x.doc): Bugfix: Added $(srcdir) to path in order
        to allow for builds in separate tree.

        * symbols.c (scm_gensym): Bugfixed my previous bugfix.  (Thanks to
        Dale P. Smith.)

2000-09-10  Keisuke Nishida  <kxn30@po.cwru.edu>

        * eval.c (SCM_APPLY): Fixed bugs in the applicable-smob calls.

2000-09-07  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * environments.c (obarray_enter, obarray_retrieve,
        obarray_remove):  Make sure the hash value is a valid obarray
        index.

        (obarray_enter, obarray_remove):  Documentation improved.

        (obarray_replace):  Added.

        (leaf_environment_define, leaf_environment_undefine):  Cleaned up
        and optimized.

2000-09-05  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * symbols.c (scm_gensym): Check that argument is a symbol, not a
        string.  (Thanks to Ralf Mattes.)

2000-09-05  Marius Vollmer  <mvo@zagadka.ping.de>

        * init.c: Include "libguile/properties.h".

        * gh_data.c (gh_scm2char): Validate that argument is a character.

2000-08-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * environments.h (SCM_IMPORT_ENVIRONMENT_P,
        SCM_EXPORT_ENVIRONMENT_P):  Before fetching the environment
        functions, make sure that we really got an environment.

2000-09-03  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * validate.h (SCM_VALIDATE_NUMBER_DEF_COPY): New macro.

2000-09-03  Marius Vollmer  <mvo@zagadka.ping.de>

        * Makefile.am (.x.doc): Pretend to create .doc files from .x files
        and give explicit dependencies for .x files that depend on
        generated files.  This allows parallel builds.  Thanks to Matthias
        Koeppe!

2000-08-27  Marius Vollmer  <mvo@zagadka.ping.de>

        * Makefile.am: Added gc_os_dep.c, properties.c, properties.x,
        properties.h and properties.doc in the suitable places.

        * init.h (scm_init_guile): New prototype. 
        
        * init.c (scm_init_guile, scm_init_guile_1): New interface for
        initializing Guile that does return to the caller.
        (scm_boot_guile_1): Use scm_init_guile_1 to initialize Guile.
        Do not establish a catch-all, this is no longer needed.

        * root.h (scm_properties_whash): New `sys_protect', used in
        properties.c.

        * throw.c (scm_ithrow): Perform catch-all handling here when no
        suitable handler has been found.  That way, we don't have to rely
        on the user establishing a catch-all, which might be difficult for
        him if he is using scm_init_guile instead of scm_boot_guile.
        
2000-09-03  Neil Jerram  <neil@ossau.uklinux.net>

        * vectors.c (scm_vector): Docstring: add @deffnx line for
        list->vector.

        * unif.c (scm_uniform_vector_ref): Docstring: add @deffnx line for
        array-ref.
        (scm_array_set_x): Docstring: add @deffnx line for
        uniform-array-set!.

        * symbols.c (scm_symbol_to_string): Docstring: complete an
        incomplete Texinfo reference to a node in r4rs.texi.
        (scm_symbol_to_string): Escape double quotes correctly within
        docstring.

        * struct.c (scm_make_struct, scm_make_vtable_vtable): Docstring
        fixes: `@dots' changed to `@dots{}'.

        * strop.c (scm_substring_move_x): Docstring: add @deffnx lines for
        substring-move-left! and substring-move-right!.

        * strings.c (scm_string): Docstring: add @deffnx line for
        list->string.

        * stime.c (scm_strptime): Fix spelling mistake in docstring.
        (scm_current_time): Docstring fix: insert missing newline.
        
        * socket.c (scm_recvfrom): Docstring format fix: missing newline
        inserted.

        * ramap.c (scm_array_copy_x): Docstring: add @deffnx line for
        array-copy-in-order!.
        (scm_array_map_x): Docstring: add @deffnx line for
        array-map-in-order!.

        * posix.c (scm_mknod): Docstring format fix: missing newlines
        inserted.
        
        * modules.c (scm_interaction_environment):  Docstring fix: add
        newlines.

        * eval.c (scm_cons_source): Added newly written docstring.

2000-09-03  Michael Livshin  <mlivshin@bigfoot.com>

        the following changes let Guile get rid of the `allocated' cell
        state.

        * smob.c (scm_smob_prehistory): don't init the "allocated" smob
        type.

        * tags.h (scm_tc16_allocated): removed.

        * gc.h: removed now-obsolete comments about the `allocated' cell
        state.
        (SCM_NEWCELL): don't change cell type to `allocated'.
        (SCM_NEWCELL2): ditto.

        * gc.c (scm_mark_locations): mark freecells too, and don't worry
        about any possible false positives.
        (scm_debug_newcell): don't change cell type to `allocated'.
        (scm_debug_newcell2): ditto.
        (scm_gc_for_newcell): ditto.
        (scm_gc_mark): remove the tc16_allocated case.

2000-08-26  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * gdbint.c (gdb_print): Removed superfluous macro definition.

        * objects.c (scm_init_objects), print.c (scm_init_print), struct.c
        (scm_init_struct): First arg to scm_make_vtable_vtable should be a
        string, not a symbol.  (`make-vtable-vtable' needs to append this
        string to another string and then pass it through
        `make-struct-layout'.)

        * stacks.c (scm_init_stacks): Pass a string, not a layout object,
        to scm_make_vtable_vtable.  (Thanks to Dale P. Smith.)
        
        * struct.c (scm_make_struct_layout): Removed reference to
        "read-only string" in comment; Check that argument is a string.
        (scm_make_vtable_vtable): Check that argument is a string.

        * environments.c (scm_init_environments): All internal includes in
        libguile must use the prefix "libguile/" in path names since inly
        the top-level source directory is on the include list.  (That, in
        turn, is because we want to distinguish between system header
        files and hedares files internal to libguile.)

        * strings.c (scm_make_shared_substring, scm_read_only_string_p):
        Deprecated.
        (scm_string_length, scm_string_ref, scm_substring,
        scm_string_append): Don't accept symbols as arguments (R5RS).

2000-08-25  Neil Jerram  <neil@ossau.uklinux.net>

        * ports.c (scm_set_port_column_x): Fix docstring so that it
        mentions set-port-line! rather than set-port-column! twice.

        * guardians.c (scm_make_guardian): Remove spurious . from doc string.

2000-08-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * Makefile.am:  Added all necessary environments.* files.

        * init.c:  Include environments.h.

        (scm_boot_guile_1):  Initialize the environments.

        * environments.[ch]:  Added.  Most of the credit for these files
        goes to Jost Boekemeier.

2000-08-25  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * procprop.c: #include "libguile/smob.h"; handle applicable smobs.

2000-08-24  Keisuke Nishida  <kxn30@po.cwru.edu>

        * smob.h (scm_smob_descriptor): Added `apply' and `gsubr_type'.
        * smob.c (scm_make_smob_type): Initialize `apply' and `gsubr_type'.
        (scm_set_smob_apply): New function.
        (scm_smob_apply_0, scm_smob_apply_1, scm_smob_apply_2,
        scm_smob_apply_3): New functions.
        * eval.c (SCM_CEVAL, SCM_APPLY): Added dispatch for applicable smobs.
        * procs.c (scm_procedure_p): Check applicable smobs.

2000-08-24  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * Makefile.am (BUILT_SOURCES): Experimentally added scmconfig.h
        also here.  (This is supposed to make sure that scmconfig.h is
        built before all sources in order to prevent that everything has
        to be rebuilt again.  Hope it works---I'm just guessing. :)

        * fluids.c (scm_fluid_set_x): Return SCM_UNSPECIFIED.

2000-08-23  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * gc.c (scm_gc_mark): Don't use GUILE_DEBUG flag to compile in
        extra tests.  (GUILE_DEBUG is only supposed to make extra
        debugging functions available.)

2000-08-21  Michael Livshin  <mlivshin@bigfoot.com>

        * gc.h (SCM_GC_CARD_N_CELLS): change to be a nice non-confusing
        constant.

2000-08-19  Michael Livshin  <mlivshin@bigfoot.com>

        * gc.c (scm_gc_sweep): added a `continue' statement that have
        fallen through the cracks in the merge.  thanks to Shuji Narazaki!

        * gc.h: removed some stuff that broke compilation for people and
        wasn't actually needed anyway.

2000-08-18  Neil Jerram  <neil@ossau.uklinux.net>

        * filesys.c (scm_fcntl): Docstring fix - missing newlines inserted.

        * net_db.c (scm_gethost, scm_getnet, scm_getproto, scm_sethost,
        scm_setnet, setproto, setserv): Argument names changed to match
        doc string.

        * feature.c (scm_program_arguments): New docstring.

        * simpos.c (scm_getenv): Reflow docstring.

        * eq.c (scm_eq_p, scm_eqv_p, scm_equal_p): Add texinfo markup to
        docstrings.

        * chars.c (scm_char*): Docstring fixes - texinfo markup.

2000-08-18  Neil Jerram  <neil@ossau.uklinux.net>

        * boolean.c (scm_not, scm_boolean_p): Docstring fixes - add
        texinfo markup and remove trailing newlines.

2000-08-17  Michael Livshin  <mlivshin@bigfoot.com>

        this changes the Guile GC to use cards (aka "chunklets").
        (most of the ideas and some of the code are by Greg Harvey, though
        the code is probably unrecognizable now.  the original chunklet
        proposal, way back, is by Dale Jordan).

        * tags.h: (SCM_GCTYPE16, SCM_GCCDR, SCM_GC[8]MARKP,
        SCM_SETGC[8]MARK, SCM_CLRGC[8]MARK): moved from here into gc.h.
        some (most) of these are probably going to be deprecated.

        * gc.h (SCM_MARKEDP): simplified, there are no different mark bit
        locations anymore.
        (SCM_GC_CARD_*, SCM_C_BVEC_*): lots of new macros to deal with
        cards and bvecs (bit-vectors).

        * gc.c: (scm_default_init_heap_size_*): defined to take cards into
        account, but keeping more or less the same values as previously.
        added some simple helper macros.
        (CLUSTER_SIZE_IN_BYTES, ALIGNMENT_SLACK): defined to take cards
        into account.
        (BVEC_*, scm_mark_space_t, current_mark_space, mark_space_ptr,
        current_mark_space_offset, mark_space_head, get_bvec,
        clear_mark_space): new functions and supporting variables, types
        and macros that implement mark space management.
        (scm_igc): clear the mark space (all of it) before beginning the
        mark phase.
        (scm_gc_mark): changed the tests for rogue cells, much simplified
        throughout (no different mark bit locations to worry about now).
        (scm_mark_locations): don't consider card header cells.
        (scm_cellp): ditto.
        (scm_gc_sweep): simplified.
        (init_heap_seg): changed to take cards into account.

2000-08-16  Michael Livshin  <mlivshin@bigfoot.com>

        * stime.c (scm_c_get_internal_run_time): new function, same as
        scm_get_internal_run_time but returns a long.  it's used by the GC
        for timekeeping, since with scm_get_internal_run_time there is a
        (extremely theoretical) possibility of consing.
        (scm_get_internal_run_time): redefined in terms of
        scm_c_get_internal_run_time.

        * stime.h: added prototype for scm_c_get_internal_run_time.

        * gc.c (scm_gc_stats): add more obscure stats, such as: mark time,
        sweep time, total marked cells, total swept cells, and number of
        times GC was invoked.
        (gc_start_stats): renamed from scm_gc_start, made static, taught
        to init the new stats.
        (gc_end_stats): renamed from scm_gc_end, made static, taught to
        calculate the new stats.
        (scm_igc): don't call gc_start_stats unless we are sure that we
        are indeed going to collect.  also, added some timekeeping between
        the mark and sweep phases.
        (scm_gc_sweep): count number of cells we sweep as we go.

        * gc.h: removed prototypes for scm_gc_{start,end}.

2000-08-13  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * alist.c (scm_assq, scm_assv, scm_assoc): Report argument type
        error for the alist rather than the sublist where the type
        mismatch is discovered.

2000-08-13  Neil Jerram  <neil@ossau.uklinux.net>

        * root.c (s_scm_call_with_dynamic_root): Docstring fix - rogue
        newline.

2000-08-12  Neil Jerram  <neil@ossau.uklinux.net>

        * numbers.c (scm_ash): Docstring fix - missing newlines.

        * ports.c (scm_port_filename): Docstring fix - missing newline.

        * strports.c (scm_eval_string): Docstring fix - missing newline.

        * vports.c (s_scm_make_soft_port): Docstring updated so that
        example is correct.

        * strop.c: Docstring fixes - quotation marks and backslashes
        needed quoting.

        * numbers.c (s_scm_logand): Docstring fix - "@end lisp" inserted.

2000-08-11  Neil Jerram  <neil@ossau.uklinux.net>

        * macros.c: Remove surplus newlines from end of docstrings.

        * list.c (scm_list_tail): Add @deffnx line to docstring for
        list-cdr-ref.

        * keywords.c: Docstring improvements in conjunction with new
        reference manual doc on keywords.

        * error.c (scm_error_scm): Fix texinfo syntax error in
        docstring.  (@code(~S) should be @code{~S}.)

        * dynl.c: Remove surplus newlines from end of docstrings.

2000-08-11  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * eval.c (scm_eval): Backward incompatible change: Now takes an
        environment specifier as second arg.  `eval' hereby becomes R5RS
        compatible.
        (scm_i_eval_x, scm_i_eval): New functions (replace
        scm_eval_3).
        (scm_eval2, scm_eval_3): Deprecated.
        (scm_top_level_lookup_closure_var): Deprecated.

        * eval.h: #include "struct.h".

        * evalext.c (scm_definedp): Have to work before module system is
        booted.

        * modules.h (SCM_MODULEP, SCM_VALIDATE_MODULE,
        SCM_MODULE_OBARRAY, SCM_MODULE_USES, SCM_MODULE_BINDER,
        SCM_MODULE_EVAL_CLOSURE): New macros.
        (scm_module_index_obarray, scm_module_index_uses,
        scm_module_index_binder, scm_module_index_eval_closure): New
        constants; #include "validate.h".

        * modules.c (scm_module_tag, scm_module_system_booted_p): New
        globals.
        (scm_post_boot_init_modules): Initialize scm_module_tag.
        (scm_interaction_environment): New primitive.

        * symbols.c (scm_can_use_top_level_lookup_closure_var): Removed.
        #include "modules.h".

        * strports.c (scm_eval_string): Evaluate in
        scm_interaction_environment ().

        * script.c (scm_shell): Pass scm_the_root_module () as second arg
        to new scm_eval_x.

        * load.c (load): Use `scm_selected_module' to compute second arg
        to new scm_i_eval_x; Don't call it if module system hasn't booted.
        (scm_read_and_eval_x): Deprecated.
        #include "modules.h".

        * debug.c (scm_local_eval): Use scm_i_eval and scm_i_eval_x.
        (scm_start_stack): Use scm_i_eval.

        * strports.c: #include "modules.h".

        * print.c (scm_simple_format): Be case-insensitive for ~A and ~S
        directives.

2000-08-09  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        The following changes are intended to ensure that struct instances
        are freed before their vtables.  It's optimized for the most
        common case, which is freeing of struct instances.

        * gc.c (scm_gc_mark, scm_gc_sweep): Remove vcell = 1 magic.
        (scm_structs_to_free): New variable.
        (scm_gc_sweep): Hook up structs to free on the scm_structs_to_free
        chain.

        * struct.h (SCM_STRUCT_GC_CHAIN, SCM_SET_STRUCT_GC_CHAIN): New
        macros.
        (scm_structs_to_free, scm_struct_prehistory): Declare.

        * struct.c (scm_make_struct, scm_make_vtable_vtable): Structs
        handles are now double cells; Initialize SCM_STRUCT_GC_CHAIN to
        0.
        (scm_struct_gc_init, scm_free_structs): New GC C hooks.
        (scm_struct_prehistory): Install them.

        * init.c (scm_boot_guile_1): Call scm_struct_prehistory.

2000-08-06  Marius Vollmer  <mvo@zagadka.ping.de>

        * read.c (scm_flush_ws): Include filename in error message when it
        is not `#f'.

2000-08-05  Marius Vollmer  <mvo@zagadka.ping.de>

        * iselect.c: Include <unistd.h>.  Thanks to Bertrand Petit!

2000-08-02  Mikael Djurfeldt  <mdj@linnaeus.mit.edu>

        * struct.c (scm_make_struct_layout, scm_make_struct,
        scm_make_vtable_vtable): Updated documentation.

        * print.c (scm_simple_format): Bugfix: Coerce port before using
        it.

2000-07-31  Gary Houston  <ghouston@arglist.com>

        * net_db.c: declare h_errno only if HAVE_H_ERRNO is not defined
        (thanks to Richard Kim for the bug report).

2000-07-30  Marius Vollmer  <mvo@zagadka.ping.de>

        * alist.c (scm_assq_remove_x, scm_assv_remove_x,
        scm_assoc_remove_x): Use scm_delq1_x instead of scm_delq_x, since
        using the latter is pointless.

2000-07-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_gc_sweep):  Renamed local variable from 'free' to
        'free_struct_data' to avoid confusion with stdlib's 'free'.

2000-07-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * vectors.c (scm_make_vector):  Fix the initialization order of
        the vector such that the type cell is initialized last.

2000-07-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * struct.[ch] (scm_struct_init):  Made static.  Fixed not to rely
        on the struct cell to be fully initialized.

        * struct.c (scm_make_struct, scm_make_vtable_vtable):  Fix the
        initialization order of the struct such that the type cell is
        initialized last.

2000-07-25  Marius Vollmer  <mvo@zagadka.ping.de>

        * alist.c (scm_assq_remove_x, scm_assv_remove_x,
        scm_assoc_remove_x): Remove only the first cell with a matching
        key, not all.

2000-07-24  Marius Vollmer  <mvo@zagadka.ping.de>

        * stime.c (scm_strftime): Recognize a return value of zero from
        strftime as buffer overflow and take care to detect a valid zero
        length result regardless.  Thanks to David Barts!

2000-07-23  Marius Vollmer  <mvo@zagadka.ping.de>

        * alist.c (scm_assq_remove_x, scm_assv_remove_x,
        scm_assoc_remove_x): Remove all cells whose key is eq, eqv, or
        equal (respectively) to the argument key, not all cells that are
        eq, eqv, or equal to the first cell with the argument key.  Thanks
        to Neil Jerram!

2000-07-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.h (SCM_FREE_CELL_CDR, SCM_SET_FREE_CELL_CDR), hooks.c
        (make_hook), modules.c (OBARRAY, USES, BINDER):  Pack and unpack
        SCM values appropriately.

        * modules.c (scm_standard_eval_closure):  Don't pass an inum to
        scm_makcclo, but rather a long value.

2000-07-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        read.c (scm_lreadrecparen), srcprop.c (scm_set_source_property_x):
        SCM_SETCDR and SCM_WHASHSET macros don't deliver a return value.
        Thanks to Han-Wen Nienhuys for the bug report.

2000-07-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * root.[ch] (scm_call_catching_errors):  Deprecated.

        * root.c (scm_init_root):  Initialize the root smob type using the
        standard initialization functions.

2000-07-17  Marius Vollmer  <mvo@zagadka.ping.de>

        * eval.c (unmemocopy): Don't rely on V being a list of at least
        one element.  Thanks to Bill Schottstaedt!

2000-07-15  Michael Livshin  <mlivshin@bigfoot.com>

        * gc.c (scm_done_free): new.
        expanded comments about scm_done_malloc.

        * gc.h: added prototype for scm_done_free

2000-07-13  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.h (scm_take_stdin):  Removed.

        * gc.h (SCM_VALIDATE_CELL):  Delegate cell checks to function
        scm_assert_cell_valid to allow extensions to the checking
        functionality without need to recompile everything.

        * gc.[ch] (scm_assert_cell_valid, scm_set_debug_cell_accesses_x):
        Added as conditionally compiled functions for the case that
        SCM_DEBUG_CELL_ACCESSES is enabled.

        * gc.c (debug_cells_p):  Added to indicate whether compile-time
        included cell access debugging is run-time enabled.

        * gc.[ch] (scm_gc_running_p):  Added to indicate that scm_igc is
        being executed.  Intended to be used instead of scm_gc_heap_lock
        at most places.

        * error.c (scm_error), gdbint.c (SCM_GC_P):  Use scm_gc_running_p
        instead of scm_gc_heap_lock.

        * gc.c (scm_igc):  Set scm_gc_running_p to true while running.

        * gc.c (scm_mark_locations):  Don't mark free cells.

        * weaks.c (scm_scan_weak_vectors):  Use SCM_FREE_CELL_P instead of
        SCM_FREEP.

2000-07-13  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_mark_locations):  Minimized some variable scopes and
        simplified the code a bit.

2000-07-10  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.h (SCM_SET_FREE_CELL_TYPE, SCM_SET_FREE_CELL_CDR,
        SCM_FREE_CELL_P, SCM_FREE_CELL_CDR):  Added since free cells
        should not be accessed via SCM_C[AD]R.  Further, using dedicated
        macros to access free cells allows all other cell accessing macros
        to treat acesses to free cells as errors, thus enabling better
        error checks for cell accesses.  SCM_FREE_CELL_P is supposed to
        replace SCM_FREEP some time.

        * gc.h (SCM_NEWCELL, SCM_NEWCELL2), gc.c (map_free_list,
        free_list_length, scm_check_freelist, scm_debug_newcell,
        scm_debug_newcell2, freelist_length, scm_gc_for_newcell,
        scm_gc_mark, scm_gc_sweep, init_heap_seg):  Only use the dedicated
        cell accessors when accessing free cells.

2000-07-10  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.h (SCM_CELL_WORD, SCM_CELL_OBJECT):  Treat the referenced
        object as const in order to make the compiler warn about code like
        SCM_CELL_WORD (x, n) = y.  Instead, SCM_SET_CELL_WORD (x, n, y)
        should be used.

        (SCM_CELL_WORD_LOC, SCM_CARLOC, SCM_CDRLOC):  Return the address
        as an address to a non-const object, since these macros are used
        to allow direct write access to objects.

2000-07-07  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * hashtab.c (scm_hash_fn_create_handle_x):  Signal an error if the
        given hash table has no slots.

2000-07-06  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (policy_on_error):  Added in order to allow alloc_some_heap
        to react to malloc failures in a context dependent way.

        (scm_check_freelist):  No need to flush streams before abort().

        (scm_gc_for_newcell):  Try to allocate new memory in three phases:
        grow heap if preferred, if still no memory available collect
        garbage, if still no memory available grow heap.

        (heap_segment_table_size):  Added to always reflect the actual
        size of the heap segment table, because scm_n_heap_segs may differ
        from the heap segment table size.

        (alloc_some_heap):  In case of malloc failure, react according to
        the new policy_on_error parameter (either return to caller or
        abort immediately).  Further, keep heap_segment_table_size up to
        date.

        (scm_init_storage):  Initialize heap_segment_table_size.

2000-07-06  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gh.h:  Don't include <stdio.h>.  Thanks to Han-Wen Nienhuys for
        the hint.

2000-06-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h (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):  Re-introduce these as deprecated
        symbols.

        * error.c (scm_wta):  Re-introduce dispatching for SCM_OUTOFRANGE
        and SCM_NALLOC, but as a deprecated feature.

2000-06-30  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * debug.c: Added #include fluids.h.

        * numbers.c (scm_gr_p, scm_leq_p, scm_geq_p): Turned into
        primitive generics.  (Thanks to Nicolas Neuss.)

2000-06-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (alloc_some_heap):  Use scm_memory_error to indicate a
        failed attempt to get additional memory from the system.

        (scm_gc_for_newcell):  Changed the control structure to make the
        behaviour explicit for the case that gc is not able to free any
        cells.

2000-06-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h (SCM_OUTOFRANGE):  Removed.

        * error.c (scm_wta):  Removed sick dispatch code for range
        errors.  (More sick dispatches still to be removed.)

        * hashtab.c (scm_hash_fn_get_handle, scm_hash_fn_create_handle_x,
        scm_hash_fn_remove_x):  Eliminate redundant test for if unsigned
        value is non-negative.  Use scm_out_of_range to signal range
        errors.

        * hooks.c (make_hook), unif.c (scm_aind):  Use scm_out_of_range to
        signal range errors.

        * list.c (scm_list_ref, scm_list_set_x, scm_list_cdr_set_x):  Fix
        error reporting (now uses original input parameter to report wrong
        type argument errors).  Use SCM_OUT_OF_RANGE to report range
        errors and SCM_WRONG_TYPE_ARG to report type errors.

        * strings.c (scm_substring):  Make range checks for negative
        values explicit (former behaviour relied on an implicit
        conversion from signed to unsigned).  Don't use SCM_ASSERT for
        range checks.

        * unif.c (scm_aind, scm_transpose_array, scm_bit_set_star_x,
        scm_bit_count_star):  Use scm_out_of_range to signal range
        errors.

        * unif.c (scm_transpose_array, scm_bit_position), vectors.c
        (scm_vector_ref, scm_vector_set_x, scm_vector_move_left_x,
        scm_vector_move_right_x):  Use SCM_ASSERT_RANGE to check ranges.

2000-06-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * validate.h (SCM_VALIDATE_INUM_MIN_COPY,
        SCM_VALIDATE_INUM_MIN_DEF_COPY, SCM_VALIDATE_INUM_RANGE_COPY):
        Perform all range checks based on the input value.  The former way
        of using the value that is assigned to the target variable fails
        if the assignment to the target variable itself can change the
        value because of type conversion.

        (SCM_ASSERT_RANGE):  Use scm_out_of_range to signal range errors.

2000-06-30  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * gc.c (scm_gc_for_newcell): Behave gracefully also if scm_igc
        doesn't yield any new cells.  In theory this could happen if all
        cells allocated with NEWCELL are either in use or conservatively
        marked and all cluster spine cells are conservatively marked.
        (Thanks to Dirk.)

2000-06-29  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h (SCM_NALLOC):  Removed.

        * error.c (scm_wta):  Removed sick dispatch code for memory
        errors.  (More sick dispatches still to be removed.)

        * numbers.c (scm_mkbig, scm_adjbig), ports.c (scm_make_port_type),
        random.c (scm_i_copy_rstate, scm_c_make_rstate), smob.c
        (scm_make_smob_type), srcprop.c (scm_make_srcprops), vectors.c
        (scm_vector_set_length_x):  Now using scm_memory_error to signal
        memory errors.

2000-06-29  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h:  Removed some commented code and fixed some comments.

        (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.

        * async.c:  Removed some commented code.

2000-06-29  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_gc_mark, scm_gc_sweep, scm_must_malloc,
        scm_must_realloc, scm_must_free, alloc_some_heap):  Use the
        appropriate error signalling function.

2000-06-29  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * root.h (scm_first_type):  Removed.

2000-06-29  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (MIN_GC_YIELD):  Removed.

2000-06-28  Michael Livshin  <mlivshin@bigfoot.com>

        * gc.c (scm_gc_for_newcell): don't try to do GC if it's blocked,
        allocate instead.

2000-06-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * async.c (scm_gc_async, scm_gc_vcell, scm_sys_gc_async_thunk):
        Moved to gc.c.

        (scm_init_async):  Moved initialization for scm_gc_async and
        scm_gc_vcell to gc.c.  Moved initialization of scm_asyncs here
        from gc.c.

        * async.h (scm_gc_async):  Not globally visible any more.

        * gc.c (scm_gc_stats):  Made callable even from within regions
        where gc is blocked.

        (scm_gc_end):  Eliminate the hardcoding of the marking of the
        scm_gc_async from the gc core.

        (scm_init_storage):  Don't initialize the scm_asyncs list here.
        This is now done in asyncs.c.

        (scm_gc_vcell):  Moved here from async.c.

        (gc_async):  Renamed from scm_gc_async, moved here from async.c
        and made static.

        (gc_async_thunk):  Renamed from scm_sys_gc_async_thunk and moved
        here from async.c.

        (mark_gc_async):  New hook function for scm_after_gc_c_hook.

        (scm_init_gc):  Added initialization of scm_gc_vcell and
        gc_async.  Further, add mark_gc_async to scm_after_gc_c_hook.

        * init.c (scm_boot_guile_1):  scm_init_gc requires asyncs to be
        initialized.

2000-06-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_igc):  Removed commented code that once was intended
        to unprotect struct types with no instances.

        * root.h (scm_type_obj_list):  Removed.

2000-06-27  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * async.c (scm_init_async):  Switch to standard way of smob
        initialization.

2000-06-21  Michael Livshin  <mlivshin@bigfoot.com>

        * guile-doc-snarf.in: use cut instead of sed, that's much much
        faster.  also, don't call basename more than needed.  and, to gain
        a couple of microseconds more, don't call cat needlessly.  (thanks
        to Brad Knotwell).

2000-06-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * guile-snarf.awk.in, guile-snarf.in, snarf.h:  Rename SCM__I to
        SCM_SNARF_INIT_START, SCM__D to SCM_SNARF_DOC_START, SCM__S to
        SCM_SNARF_DOCSTRING_START and SCM__E to SCM_SNARF_DOCSTRING_END.

2000-06-21  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * eval.c, eval.h (scm_top_level_lookup_closure_var): Added.
        #include "libguile/fluids.h".

        * eval.h (SCM_TOP_LEVEL_LOOKUP_CLOSURE): New macro which replaces
        SCM_CDR (scm_top_level_lookup_closure_var) everywhere.

        * root.h (scm_top_level_lookup_closure_var,
        scm_system_transformer): Removed.  (It's no sense in having the
        *variable* be a "fluid".)

        * root.c (mark_root): Removed marking of
        s->top_level_lookup_closure_var and s->system_transformer.

        * modules.c (scm_selected_module): the_module is now a fluid.

2000-06-20  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * gc.h, tags.h: Be kind to compilers which must see hash signs in
        column 0.  (Thanks to Ian Grant.)

        * numbers.h: Put #ifdef HAVE_LONG_LONGS around declarations using
        the long_long type.  (Thanks to Bernard Urban.)

2000-06-20  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * gc.c, gc.h (scm_default_init_heap_size_1,
        scm_default_min_yield_1, scm_default_init_heap_size_2,
        scm_default_min_yield_2, scm_default_max_segment_size): New global
        variables.  Can be customized by the application before booting
        Guile.  (We might want to be able to control these parameters
        dynamically through the "options interface" in the future, but
        note that that is additional functionality.  Here we're giving
        default values which the environment variables can override.)

        * list.c (scm_cons_star): Updated comment.

        * smob.h: Changed comments for scm_make_smob_type and
        scm_make_smob_type_mfpe, warning that the latter might be
        deprecated in a future release.

2000-06-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * list.[ch] (scm_cons_star/cons*):  Renamed from
        scm_list_star/list*.

        * list.[ch] (scm_list_star/list*):  Provided as a deprecated alias
        for scm_cons_star/cons*.

        * gc.c (scm_protect_object):  Updated comment.

        * numbers.h (SCM_NEWREAL, SCM_NEWCOMPLEX):  Removed.

        * tags.h (SCM_UNPACK_CAR, SCM_NDOUBLE_CELLP):  Removed.

2000-06-19  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * init.c, init.h (scm_initialized_p): Renamed from `initialized'
        and made global.

        * gdbint.c (gdb_print): Print warning instead of calling scm_write
        if Guile isn't yet initialized.

        * print.c (scm_current_pstate, scm_make_print_state): Simplified
        tests, using the assumption that Guile has been initialized.

Sun Jun 18 14:45:21 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * print.c (s_scm_current_pstate): Do not segfault when the
        print_state_pool is unitialized in `current-pstate', and better
        verify its state before altering it in scm_make_print_state().

2000-06-18  Michael Livshin  <mlivshin@bigfoot.com>

        * scmsigs.c (s_scm_sigaction): guard the SIGIOT case with an
        #ifdef -- it's missing on at least one platform.  (thanks to
        Jan Nieuwenhuizen).

2000-06-16  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * list.c (list*):  Added documentation from common-list.scm.

2000-06-15  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_unprotect_object):  The reference count is guaranteed
        to be a positive number.

2000-06-15  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * eval.c: Updated comment above scm_map.

2000-06-14  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * gc.c (scm_protect_object): Avoid looking up the object handle
        twice.
        (scm_unprotect_object): Abort if scm_unprotect_object is called on
        an unprotected object.

2000-06-14  Michael Livshin  <mlivshin@bigfoot.com>

        * gc.c (scm_unprotect_object): fix a nasty typo bug (thanks to
        Dirk Herrmann).

2000-06-14  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * socket.c (scm_getsockopt): Changed type for `optlen' from int to
        size_t.
        (scm_accept, scm_getsockname, scm_getpeername, scm_recvfrom):
        Ditto for `tmp_size'.
        (scm_addr_buffer_size): Changed type from int to size_t.

        * random.c: #include <string.h>.  (Needed by memcpy.)

        * guile-snarf.awk.in: Replace the dot_doc_file arg with "-",
        indicating stdin, instead of "" and don't reset ARGC.  This is a
        workaround for `nawk' in AIX 4.3 on RS6000 but, as far as I know,
        it is correct, and perhaps even better.

2000-06-14  Gary Houston  <ghouston@arglist.com>

        * scmsigs.c (scm_init_scmsigs): if HAVE_SIGINTERRUPT is not
        defined, add SA_RESTART to the sigaction flags correctly
        (thanks to Dale P. Smith).

2000-06-13  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * strings.c: #include <string.h>. (Thanks to Bill Schottstaedt.)

        * net_db.c (scm_resolv_error): Only use macro NETDB_INTERNAL if
        defined. It isn't on sgi irix 5.3.  (Thanks to Bill Schottstaedt.)

        * Makefile.am (.c.doc): Pipe output (the .x contents) to /dev/null.

2000-06-13  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * fports.c (scm_setvbuf): Use `free' instead of `scm_must_free'
        since read and write buffers are allocated by `malloc'.

        * Makefile.am: Removed old test code.

        * gh_test_c.c, gh_test_repl.c: Removed.

2000-06-12  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * iselect.c (SCM_NLONGBITS): Add workaround for the Sun 4.2
        compiler.

        * inet_aton.c (inet_aton): Cast init value for `cp'.

        * ramap.c (s_scm_array_fill_x): Cast `ve' properly in case
        `scm_tc7_uvect'.

        * symbols.c (scm_intern_obarray_soft,
        scm_sysintern0_no_module_lookup): Cast `name' to unsigned char ptr
        in calls to scm_strhash.

        * strports.c (st_resize_port): Substituted SCM_UCHARS for
        SCM_CHARS.
        (st_write): Cast argument to strncpy to char ptr.
        (scm_mkstrport): Substituted SCM_ROUCHARS for SCM_ROCHARS.
        (scm_strport_to_string): Cast argument to scm_makfromstr to char
        ptr.

        * ports.c (scm_ungetc): Cast value to unsigned char ptr before
        storing in putback_buf.
        (scm_unread_string): Substituted SCM_ROCHARS for SCM_ROUCHARS.

        * ioext.c (s_scm_read_line): Cast result of call to
        scm_do_read_line to unsigned char ptr.

        * gdbint.c (SEND_STRING): Cast argument to char pointer.

        * fports.c (fport_flush): Declare `ptr' as unsigned char (was
        char).

        * Makefile.am (DOT_DOC_FILES): List doc-files explicitly.  (We
        shouldn't use Make rules which aren't supported by most Make
        programs.)
        (OMIT_DEPENDENCIES): Defined to "libguile.h ltdl.h".  (We don't
        want these dependencies recorded, since they would get bogus
        relative paths; libguile.h is only used in gh.h and guile.c.)
        (EXTRA_DOT_X_FILES, EXTRA_DOT_DOC_FILES): New variables.
        (guile-procedures.txt): Depend on EXTRA_DOT_DOC_FILES.
        (modinclude_HEADERS): Removed kw.h.

        * guile-snarf.in: Change regexp "^SCM__I" --> "^ *SCM__I".
        (The preprocessor might insert spaces before the identifier.)

        * snarf.h (SCM_SNARF_HERE, SCM_SNARF_INIT, SCM_SNARF_DOCS):
        Renamed from SCM_HERE, SCM_INIT, SCM_DOCS.

        * smob.h (scm_smobfuns): Removed deprecated type.

        * smob.c, smob.h (scm_newsmob): Removed deprecated function.
        (Replaced by `scm_make_smob_type'.)

        * keywords.c (scm_tc16_kw): Removed deprecated type.
        (Replaced by scm_tc16_keyword.)

        * kw.h: Removed deprecated header file.

        * evalext.c (serial-map): Removed deprected alias for scm_map.
        (Has been replaced by `map-in-order'.)

        * ramap.c (serial-array-copy!, serial-array-map!): Removed
        depracted aliases.  (Replaced by `array-copy-in-order!' and
        `array-map-in-order'.)

2000-06-11  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * gc.h (SCM_VALIDATE_CELL): Rewritten.
        (SCM_CELL_WORD, SCM_CELL_OBJECT, SCM_SET_CELL_WORD,
        SCM_SET_CELL_OBJECT): Use new version of SCM_VALIDATE_CELL.
        (Thanks to Han-Wen Nienhuys.)

2000-06-10  Michael Livshin  <mlivshin@bigfoot.com>

        * guile-doc-snarf.in: don't pipe the CPP output right into sed --
        write it to the temp file first and check the CPP return code.
        (I introduced this bug earlier, and this probably caused people
        with non-GNU C preprocessors to get empty *.x files and not to
        have the build fail right away...).

        * scmsigs.c (s_scm_sigaction): guard the SIGSYS case with an ifdef
        -- at least my libc5-based Linux system doesn't define SIGSYS.

2000-06-08  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * snarf.h, guile-snarf.awk.in, guile-snarf.in: Replaced snarf
        markers with identifiers (SCM__I, SCM__D, SCM__S, SCM__E).
        (Thanks to Bernard Urban.)

2000-06-06  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * modules.c (scm_system_module_env_p): Fixed detection of system
        modules.

2000-06-06  Marius Vollmer  <mvo@zagadka.ping.de>

        * scmsigs.c (scm_sigaction): Silently ignore setting handlers for
        `program error signals' because they can't currently be handled by
        Scheme code.

2000-06-05  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * procs.h (SCM_SET_SUBRF):  Added.

        * procs.c (scm_make_subr_opt):  Don't assign to SCM_SUBRF, use
        SCM_SET_SUBRF instead.  Thanks to Bernard Urban for the bug
        report.

2000-06-05  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.h (SCM_CARLOC, SCM_CDRLOC):  Don't take the address of a SCM
        value.

        * sort.c (scm_sorted_p, scm_merge, scm_merge_list_x,
        scm_merge_list_step):  Don't take the address of SCM_CAR.  Use
        SCM_CARLOC instead.  Thanks to Bernard Urban for the bug report.

2000-06-05  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * boolean.h (SCM_TRUE_P):  Removed, as people might use it as a
        replacement for !SCM_FALSEP.

        * backtrace.c (display_error_body), boolean.h (SCM_BOOLP), gc.c
        (scm_unhash_name), gh_data.c (gh_module_lookup), load.c
        (scm_primitive_load), print.c (scm_simple_format), procs.c
        (scm_procedure_documentation), procs.h (SCM_TOP_LEVEL), ramap.c
        (scm_array_fill_int), scmsigs.c (scm_sigaction), stacks.c
        (narrow_stack, scm_make_stack, scm_stack_id), symbols.c
        (scm_string_to_obarray_symbol), throw.c (scm_catch,
        scm_lazy_catch, scm_ithrow), unif.c (scm_make_uve, scm_array_p,
        scm_array_set_x, scm_bit_set_star_x, scm_bit_count_star),
        validate.h (SCM_VALIDATE_BOOL_COPY, SCM_VALIDATE_PROC):  Replace
        uses of SCM_TRUE_P (x) with SCM_EQ_P (x, SCM_BOOL_T).

2000-06-04  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * eval.c (scm_badformalsp): New static function.
        (SCM_CEVAL): Check arguments for procedure-with-setter closures.
        (Thanks to Keisuke Nishida.)

        The major reason for Guile's slow loading speed has been the fact
        that a chain of Scheme level procedures has been evaluated for
        every top-level symbol lookup during the first pass through the
        code.

        The following is a kludge which I suggested four years ago, and
        which I've repeatedly suggested since.  Personally, I've never
        been bothered by Guile's slow loading speed, so I thought I would
        let someone else do it...

        But since the new environments will be included first in
        Guile-1.5, I thought it would make people happy to get the kludge
        into 1.4.

        * modules.c: Added #include "libguile/vectors.h";
        Added #include "libguile/hashtab.h";
        Added #include "libguile/struct.h";
        Added #include "libguile/variable.h";
        Capture Scheme level `module-make-local-var!' to be used in the
        standard eval closure.
        (scm_standard_eval_closure): New primitive.

        * modules.h (scm_standard_eval_closure): Declare.

        * eval.c (scm_lookupcar): Test for !SCM_CONSP (SCM_CAR (env))
        instead of SCM_TRUE (scm_procedurep (SCM_CAR (env))).

        * symbols.c (scm_sym2vcell): Bypass dispatch in the evaluator for
        standard eval closures.

        * variable.c: Code layout fixes.

2000-06-03  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * Makefile.am: Added LIBS line to libpath which accidentally
        disappeared in the change of 2000-06-01.
        (Thanks to Dale P. Smith.)

2000-06-03  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * scmsigs.c (scm_segfault): Removed.  (Was probably added by
        mistake since it is not mentioned in ChangeLog.)

        * gc.h (SCM_VALIDATE_CELL): Cast result to (void) in order to
        avoid compiler warnings in gcc.  (Does this work for other
        compilers?)

2000-06-03  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * gc.h (SCM_VALIDATE_CELL): Don't "use" the value returned by
        abort ().
        (SCM_CARLOC, SCM_CDRLOC): Define directly instead of using
        SCM_CELL_OBJECT_0 and SCM_CELL_OBJECT_1.  It's not correct to take
        the address of these expressions since they use SCM_VALIDATE_CELL.
        (Thanks to Bernard Urban.)

        * dynl.c: Changed #include <ltdl.h> --> #include
        "libltdl/ltdl.h".  (Thanks to Bill Schottstaedt.)

2000-06-01  Craig Brozefsky  <craig@red-bean.com>

        * Makefile.am: libguile_la_LDFLAGS gets -version-info args
        from GUILE-VERSION definition of LIBGUILE version.  Added to
        libpath.h definitions for guileversion and libguileversion which
        both get their values from GUILE-VERSION definition.

2000-05-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.h (SCM_BIGP):  Don't use SCM_SMOB_PREDICATE in header
        file:  Code using numbers should not be required to include
        smob.h.

2000-05-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * coop-threads.c.cygnus, coop-threads.h.cygnus, fsu-pthreads.h,
        mit-pthreads.c, mit-pthreads.h:  Deleted.

        * Makefile.am (EXTRA_DIST), scmsigs.c, threads.[ch]:  Drop
        references to deleted files and fsu/mit thread support in
        general.

2000-05-29  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * hooks.c (symbol_name, scm_create_hook):  Restored the original
        behaviour of scm_create_hook.  Changing it was bad as Carl
        R. Witty has pointed out.

        * gc.c (scm_init_gc):  We can still rely on scm_create_hook to
        protect the object.

2000-05-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_init_gc):  Protect scm_after_gc_hook, since this will
        soon not be done by scm_create_hook any longer.

        * hooks.c (make_hook, print_hook, scm_create_hook,
        scm_make_hook_with_name, scm_make_hook), hooks.h (SCM_HOOK_NAME,
        SCM_HOOK_PROCEDURES, SCM_SET_HOOK_PROCEDURES,
        scm_make_hook_with_name), init.c (scm_boot_guile_1):  Hooks no
        longer have names.  As an intermediate solution, the name
        predicate is emulated via object properties, but use of this
        feature is deprecated.

        * hooks.h (scm_free_hook):  Removed, as it is never defined.

2000-05-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.[ch] (SCM_POSFIXABLE, SCM_NEGFIXABLE, SCM_FIXABLE):
        Un-deprecated since otherwise user code can't determine whether a
        number fits into an inum any longer.  The names should be changed
        some time, though.

        * numbers.c (scm_big2inum):  Eliminated use of SCM_UNEGFIXABLE.

        * tags.h (SCM_UNPACK_CAR):  Deprecated.

2000-05-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * filesys.h (SCM_OPDIRP), fluids.h (SCM_FLUIDP, SCM_FLUID_NUM),
        fports.h (SCM_OPFPORTP, SCM_OPINFPORTP, SCM_OPOUTFPORTP), hooks.h
        (SCM_HOOK_ARITY), keywords.h (SCM_KEYWORDP, SCM_KEYWORDSYM),
        numbers.h (SCM_NUMP, SCM_BIGSIGN, SCM_BDIGITS, SCM_NUMDIGS):
        Replace SCM_UNPACK_CAR appropriately.  Don't access cells via
        SCM_{SET}?C[AD]R unless they are known to be cons cells.

        * gc.c (scm_heap_seg_data_t, scm_mark_locations, scm_cellp,
        init_heap_seg):  Remove unused struct member variable 'valid'.

2000-05-24  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * fports.c (fport_write), ports.c (scm_markstream, scm_port_mode,
        scm_print_port_mode), ports.h (SCM_OPPORTP, SCM_OPINPORTP,
        SCM_OPOUTPORTP, SCM_INPUT_PORT_P, SCM_OUTPUT_PORT_P, SCM_OPENP),
        procs.h (SCM_CLOSCAR), unif.h (SCM_ARRAY_NDIM, SCM_ARRAY_CONTP),
        variable.h (SCM_VARIABLEP):  Replace SCM_UNPACK_CAR
        appropriately.

2000-05-23  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (free_list_length), hash.c (scm_hasher), macros.c
        (scm_macro_type), objects.c (scm_class_of), options.c
        (scm_options), print.c (scm_iprin1), strports.c (st_seek), throw.c
        (SCM_LAZY_CATCH_P):  Replace SCM_UNPACK_CAR appropriately.

2000-05-23  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_macroexp, SCM_CEVAL, scm_force), tags.h:  Replace
        SCM_UNPACK_CAR with SCM_CELL_TYPE or SCM_CELL_WORD_0.

        * eval.c (scm_force):  Add documentation.

        * eval.c (scm_force, scm_cons_source):  Don't access cells via
        SCM_{SET}?C[AD]R unless they are known to be cons cells.

2000-05-23  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * strings.h (SCM_NSTRINGP, SCM_NRWSTRINGP), tags.h
        (SCM_NDOUBLE_CELLP), vectors.h (SCM_NVECTORP):  Deprecated.

        * gc.c (scm_igc), gc.h (SCM_PTR_MASK, SCM_PTR_LT):  Removed #ifdef
        nosve #endif conditionally compiled code.

2000-05-23  Michael Livshin  <mlivshin@bigfoot.com>

        * gc.c (scm_heap_seg_data_t): fixed comment for the `span' member.

2000-05-22  Michael Livshin  <mlivshin@bigfoot.com>

        * guile-doc-snarf.in: put the preprocessed file through sed to
        trim all lines to 1024 chars.  I hope it doesn't break anybody's
        sed.  we'll see.  (note: this is lossy trimming, i.e. the spill
        isn't wrapped around but actually chopped off.  this seemed to me
        safe because the current snarfer doesn't understand multi-line
        cookies anyway.  in the long term, it would be nice not to depend
        on AWK for anything.)

        * gc.h (SCM_[SET_]CELL_{WORD,OBJECT}, SCM_VALIDATE_CELL): reverted
        the previous change to this macros, after deciding to torture the
        snarfer instead.

2000-05-21  Michael Livshin  <mlivshin@bigfoot.com>

        * gc.h (SCM_[SET_]CELL_{WORD,OBJECT}, SCM_VALIDATE_CELL): brought
        the yucky, ugly and nasty conditional compilation back.  sorry,
        but it was either that or requiring GAWK to build Guile.
        (lots of places): removed the code that implemented the old GC
        scheme.

        * init.c (scm_boot_guile_1): removed the code conditioned on
        !GUILE_NEW_GC_SCHEME.

        * __scm.h: (GUILE_NEW_GC_SCHEME): removed.

        * gc.c (scm_protect_object, scm_unprotect_object): change the
        implementation to more efficient (at least in the time complexity
        sense).  the calls should now also be thread-safe -- I suspect
        that people expect them to be.  (thanks to Han-Wen Nienhuys)
        (lots of places): removed the code that implemented the old GC
        scheme.

        * hashtab.c (scm_hash_fn_create_handle_x): add missing
        SCM_REALLOW_INTS before return.  I really wonder about the
        possible interactions between hashtables, threads & GC.  it
        doesn't look healthy at all.

2000-05-20  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * unif.c (scm_bit_count):  Fixed the parameter checks.  Thanks to
        Dale P. Smith.

2000-05-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h (SCM_DEBUG_CELL_ACCESSES), gc.h (SCM_):  Added as a new
        debug option to verify all accesses to cells actually access
        objects on the heap.

        * gc.h (SCM_VALIDATE_CELL):  Added.  Only performs validation if
        SCM_DEBUG_CELL_ACCESSES is set to 1.

        (SCM_CELL_WORD, SCM_CELL_OBJECT, SCM_SET_CELL_WORD,
        SCM_SET_CELL_OBJECT):  Use SCM_VALIDATE_CELL to check every cell
        that is accessed.

2000-05-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gh_data.c (gh_scm2chars, gh_scm2shorts, gh_scm2longs,
        gh_scm2floats, gh_scm2doubles):  Change !SCM_NIMP to SCM_IMP.

        * gc.c (scm_cellp):  Fixed and simplified.

        * throw.c (JBJMPBUF, SETJBJMPBUF, SCM_JBDFRAME, SCM_SETJBDFRAME,
        make_jmpbuf, scm_init_throw):  Now using double cells to represent
        jump buffers when using debug extensions.

        (freejb):  Removed.

2000-05-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gh.h gh_data.c gh_funcs.c (gh_new_procedure*, gh_chars2byvect,
        gh_shorts2svect, gh_longs2ivect, gh_ulongs2uvect, gh_floats2fvect,
        gh_doubles2dvect, gh_doubles2scm, gh_define, gh_lookup,
        gh_module_lookup):  Accept const pointers as parameters.

        * gh.h gh_data.c (gh_int2scmb):  Deprecated.

2000-05-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h (SCM_DEBUG_REST_ARGUMENT):  Renamed from
        SCM_DEBUG_REST_ARGUMENTS in order to clarify that we don't test
        the actual arguments in the list, but rather the rest argument as
        a list of arguments.

        * validate.h (SCM_VALIDATE_REST_ARGUMENT):  Added.

        * async.c (scm_noop), eval.c (scm_map, scm_for_each), list.c
        (scm_list_star, scm_append, scm_append_x), ports.c
        (scm_close_all_ports_except), ramap.c (scm_array_map_x,
        scm_array_for_each), regex-posix.c (scm_make_regexp), stacks.c
        (scm_make_stack), strings.c (scm_string_append), struct.c
        (scm_make_struct, scm_make_vtable_vtable):  Validate rest arguments.

        * dynl.c (DYNL_GLOBAL, sysdep_dynl_link, kw_global, sym_global,
        scm_dynamic_link, scm_init_dynamic_linking), dynl.h
        (scm_dynamic_link):  Removed possibility to pass flags to
        scm_dynamic_link, as it had no effect anyway.

        * filesys.c (scm_fcntl):  Made single optional rest argument into
        a standard optional argument.

        * hooks.c (scm_run_hook):  A list of rest arguments is never
        SCM_UNBNDP.

        * list.c (scm_append, scm_append_x), stacks.c (scm_make_stack),
        strings.c (scm_string_append):  Don't perform half-hearted checks
        to see whether the rest argument forms a proper list any more, use
        SCM_VALIDATE_REST_ARGUMENTS instead.

        * ports.c (scm_close_all_ports_except):  Accept empty list of rest
        arguments.

        * posix.c (scm_convert_exec_args), print.c (scm_simple_format):
        Simplify verification of rest argument.

        * stacks.c (scm_make_stack), stacks.h (scm_make_stack), throw.c
        (ss_handler, handler_message):  Make first mandatory rest argument
        of scm_make_stack into a standard mandatory argument.

        * unif.c (scm_transpose_array, scm_enclose_array,
        scm_array_in_bounds_p), unif.h (scm_transpose_array,
        scm_enclose_array, scm_array_in_bounds_p):  Make first mandatory
        rest argument into a standard mandatory argument.

2000-05-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h:  Added SCM_DEBUG as default debug option. (Thanks to
        Keisuke Nishida for the suggestion.)  Added debug option
        SCM_DEBUG_REST_ARGUMENTS.

        * eval.c (scm_map, scm_for_each):  Make sure all lists have the
        same length.  Also, removed redundant parameter checks.

2000-05-16  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * Makefile.am:  Let 'make clean' remove *.x and *.doc files.

        * __scm.h:  Improved explanation of giving options to make.

        * __scm.h (SCM_DEBUG_TYPING_STRICTNESS), tags.h
        (SCM_STRICT_TYPING, SCM_DEBUG_TYPING_STRICTNESS):  Renamed
        SCM_STRICT_TYPING to SCM_DEBUG_TYPING_STRICTNESS and moved the
        corresponding declaration and comment to __scm.h.

        * _scm.h (errno), gc.h (SCM_CELLPTR, SCM_PTR_LT), numbers.c
        (scm_remainder, scm_modulo), numbers.h (SCM_SRS, SCM_MAKINUM,
        SCM_INUM):  Removed conditionally compiled code for Turbo C.

        * gdbint.c (gdb_maybe_valid_type_p):  Eliminated call to scm_tag.
        That check can be assumed to be redundant except for very rare
        conditions that actually indicate broken heap data.

2000-05-16  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_logcount, scm_integer_length):  Reordered
        dispatch sequence.

2000-05-15  Gary Houston  <ghouston@arglist.com>

        * stime.c (scm_strftime): don't reset TZ if zone is an empty
        string.  append a "0" to the zone for TZ.

2000-05-15  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_logbit_p, scm_bit_extract):  Reordered dispatch
        sequence.

        (scm_bit_extract):  Fixed handling of bignums.

2000-05-15  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * async.c (scm_sys_gc_async_thunk), chars.h (SCM_ICHRP, SCM_ICHR,
        SCM_MAKICHR), continuations.h (SCM_SETJMPBUF), error.c
        (scm_sysmissing), error.h (scm_sysmissing), evalext.c
        ('serial-map), ioext.c (scm_fseek), ioext.h (scm_fseek),
        keywords.c (scm_tc16_kw, scm_init_keywords), ports.h (SCM_CRDY,
        SCM_INPORTP, SCM_OUTPORTP), ramap.c ('serial-array-copy!,
        'serial-array-map!), smob.c (scm_newsmob), smob.h (scm_smobfuns,
        scm_newsmob), tag.c (scm_tag), tag.h (scm_tag), tags.h
        (scm_tc16_flo, scm_tc_flo, scm_tc_dblr, scm_tc_dblc):  Wrapped
        deprecated code between #if (SCM_DEBUG_DEPRECATED == 0) #endif.

        * fports.c (scm_fport_buffer_add), ports.c (scm_input_port_p,
        scm_output_port_p), print.c (scm_get_print_state), validate.h
        (SCM_VALIDATE_CHAR):  Replace use of deprecated macros
        SCM_INPORTP, SCM_OUTPORTP, SCM_ICHRP by SCM_INPUT_PORT_P,
        SCM_OUTPUT_PORT_P, SCM_CHARP, respectively.

2000-05-14  Gary Houston  <ghouston@arglist.com>

        * stime.c (scm_strftime): if HAVE_TM_ZONE is not defined, hack the
        TZ environment variable so that the %Z format returns the zone
        from the input vector instead of the system default.

        from Keisuke Nishida:
        * fports.c (scm_setvbuf): minor docstring fix.
        * ports.h (scm_generic_fgets): obsolete prototype deleted.

2000-05-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h:  Added new section for debugging options.

        (SCM_DEBUG_DEPRECATED):  If 1, no deprecated code is included to
        help developers to get rid of references to deprecated code.

        * numbers.[ch] (SCM_POSFIXABLE, SCM_NEGFIXABLE, SCM_UNEGFIXABLE,
        SCM_FIXABLE, SCM_FLOBUFLEN):  These macros are no longer provided
        as part of the interface and are marked as deprecated in the
        header file.

        * numbers.c (scm_make_real, scm_make_complex):  Inlined the
        corresponding macros SCM_NEWREAL and SCM_NEWCOMPLEX,
        respectively.

        * numbers.h (SCM_NEWREAL, SCM_NEWCOMPLEX, SCM_INEXP, SCM_CPLXP,
        SCM_REAL, SCM_IMAG, SCM_REALPART, scm_makdbl, SCM_SINGP,
        SCM_NO_BIGDIG, SCM_NUM2DBL, scm_dblproc):  Deprecated.

2000-05-10  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.h (scm_cell, SCM_CELL_WORD, SCM_CELL_OBJECT,
        SCM_SET_CELL_WORD, SCM_SET_CELL_OBJECT):  Scheme cells now consist
        of two scm_bits_t values instead of two SCM values, because it is
        legal for cell entries to hold values that are not scheme objects.

        (SCM_SETAND_CAR, SCM_SETAND_CDR, SCM_SETOR_CAR, SCM_SETOR_CDR):
        Use SCM_SETC[AD]R to modify contents of pairs.

2000-05-10  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (IS_INF, isfinite):  Added FIXME comment.

        (scm_abs, scm_magnitude):  Make these two independent of each
        other.  scm_abs now reports an error if given a complex argument.

        (scm_istr2flo, scm_integer_p).  Use SCM_REAL_VALUE instead of
        SCM_REALPART if the object is known to be real.

        (scm_init_numbers):  No need to use SCM_NEWREAL macro for speed
        here.

        * numbers.h (SCM_SINGP):  Set to 0 instead of SCM_BOOL_F.

2000-05-10  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eq.c (scm_eqv_p):  Separate handling of real and complex
        values.  Remove #ifdef SCM_BIGDIG #endif test.

        * eval.c (SCM_CEVAL, SCM_APPLY), gh_data.c (gh_scm2floats,
        gh_scm2doubles), hash.c (scm_hasher), ramap.c (scm_array_fill_int,
        ramap_rp, scm_array_map_x), random.c (vector_scale,
        vector_sum_squares), unif.c (scm_make_uve, scm_array_p,
        scm_array_set_x):  Use SCM_REAL_VALUE instead of SCM_REALPART if
        the object is known to be real.  Use SCM_COMPLEXP instead of
        deprecated SCM_CPLXP.  Use SCM_INEXACTP instead of deprecated
        SCM_INEXP.

2000-05-10  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c:  No need to include unif.h.

        (IS_INF):  Returned to old test for now:  x == x + 1 will not work
        for large numbers due to rounding errors.
        Thanks to Kalle Olavi Niemitalo.

2000-05-09  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_divbigdig):  Removed outdated comment.

        (scm_number_to_string, scm_string_to_number, scm_number_p,
        scm_real_p, scm_integer_p, scm_inexact_p, scm_gr_p, scm_leq_p,
        scm_geq_p, scm_make_rectangular, scm_make_polar,
        scm_inexact_to_exact):  Added comments.

        (add1, scm_init_numbers):  Removed add1.

2000-05-09  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (IS_INF):  The new test is x == x + 1.  The old test
        x == x/2 did not work for zero values.  Thanks to Han-Wen Nienhuys
        and Ivan Toshkov.

        (scm_number_to_string, scm_sum, scm_difference, scm_two_doubles,
        scm_num2long, scm_num2long_long, scm_num2ulong):  Reordered
        dispatch sequence.

2000-05-09  Marius Vollmer  <mvo@zagadka.ping.de>

        * scmsigs.c (take_signal): Execute SCM_ASYNC_TICK for SIGSEGV,
        SIGILL and SIGBUS signals.  These signals are not continuable and
        must be handled for real right away.

2000-05-08  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_zero_p, scm_positive_p, scm_negative_p,
        scm_real_part, scm_imag_part, scm_magnitude,
        scm_inexact_to_exact):  Reordered dispatch sequence.

2000-05-08  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * feature.c:  No need to include "libguile/smob.h"

        (scm_loc_features, features, scm_add_feature, scm_init_feature):
        Removed variable 'scm_loc_features' as a pointer to the SCM value
        holding the features list.  Using variable 'features' instead,
        which holds the interned pair.  Thus, SCM_SETCDR can be used
        instead of pointer trickery.

2000-05-08  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * alist.c (scm_acons):  Use SCM{_SET}?_CELL_OBJECT as long as a
        cell is not known to be a valid pair.

2000-05-08  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (ASRTSYNTAX, scm_m_body, scm_m_letrec1):  Removed
        ASRTSYNTAX.  Using SCM_ASSYNT instead.

        (scm_m_body):  Don't create a redundant cons cell.

        (scm_m_do):  Removed redundant test 'bodycheck'.

        (bodycheck):  Removed.

        * stacks.c (stack_depth, read_frame, read_frames):  Removed
        redundant calculation of size, minimized some variable scopes.

2000-05-05  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * pairs.c (scm_cons, scm_cons2):  Use SCM{_SET}?_CELL_OBJECT as
        long as a cell is not known to be a valid pair.

        (scm_pair_p):  Eliminated redundant SCM_IMP test.

2000-05-05  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_m_body, scm_macroexp, unmemocopy, scm_eval_args,
        scm_deval_args):  Eliminated redundant SCM_IMP tests.

        * hashtab.c (scm_ihashx, scm_sloppy_assx, scm_delx_x), weaks.c
        (scm_make_weak_key_hash_table, scm_make_weak_value_hash_table,
        scm_make_doubly_weak_hash_table):  Fixed critical sections.
        Thanks to Keisuke Nishida.

2000-05-05  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_logand, scm_logior, scm_logxor, scm_logtest):
        Fixed some goto-related initialization bugs (introduced by me).

2000-05-04  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.h (SCM_INUM0):  Uses SCM_MAKINUM instead of SCM_PACK.

        * dynl.c (dynl_obj, DYNL_OBJ, get_dynl_obj):  Removed.

        (DYNL_FILENAME, DYNL_HANDLE):  Use SCM_CELL... macros instead of
        pointer trickery.

        (SET_DYNL_HANDLE):  Added.

        (scm_dynamic_object_p):  Simplified.

        (scm_dynamic_unlink, scm_dynamic_func):  Changed comment.  Deliver
        better error message when accessing unlinked dynamic objects.
        Eliminated call to get_dynl_obj.

2000-05-03  Marius Vollmer  <mvo@zagadka.ping.de>

        * scmsigs.c (orig_handlers) [!HAVE_SIGACTION]: Fix declaration to
        be an array of function pointers instead of being a pointer to an
        array returning function.  Thanks to Kalle Olavi Niemitalo!

2000-05-03  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_divbigbig, scm_divbigint), numbers.h
        (scm_divbigbig, scm_divbigint):  Don't return zero any more to
        indicate that a division has a remainder, return SCM_UNDEFINED
        instead.  It is improbable that anyone actually used these
        functions outside of numbers.c.  For this reason and due to the
        change in behaviour the functions are static now.  Thus, if
        surprisingly there are users of these functions they will at least
        get alarmed.

        * numbers.c:  Removed #ifdef SCM_BIGDIG #endif in those functions,
        that already have a clean dispatch order.  Note: SCM_BIGDIG is
        always defined.

        * numbers.c (scm_inexact_p):  Simplified.

        * numbers.c (scm_num_eq_p, scm_less_p, scm_max, scm_min,
        scm_product, scm_num2dbl, scm_angle):  Reordered dispatch
        sequence, thereby fixing some comparisons of SCM values with
        integer constants.

        * numbers.c (scm_divide):  Division by zero of inums leads to an
        error now.  (Formerly, an infinite number was returned.)

        Respect the fact, that scm_divbigbig does now return SCM_UNDEFINED
        if a division has a remainder.

2000-05-02  Gary Houston  <ghouston@arglist.com>

        * Makefile.am (INCLUDES): add ${INCLTDL} (thanks to Tim Mooney).

2000-05-02  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_logtest, scm_division):  Reordered dispatch
        sequence, thereby fixing some comparisons of SCM values with
        integer constants.

        * numbers.h (scm_makdbl):  Mark as deprecated at the point of
        declaration.

        * eval.c (SCM_CEVAL, SCM_APPLY), gh_data.c (gh_double2scm,
        gh_doubles2scm), numbers.c (scm_istr2flo, scm_max, scm_min,
        scm_sum, scm_difference, scm_product, scm_divide, scm_sys_expt,
        scm_sys_atan2, scm_make_rectangular, scm_make_polar,
        scm_real_part, scm_imag_part, scm_magnitude, scm_angle,
        scm_long2num, scm_long_long2num, scm_ulong2num), ramap.c
        (ramap_rp, scm_array_map_x), random.c (scm_random,
        scm_random_uniform, scm_random_normal_vector_x, scm_random_exp),
        struct.c (scm_struct_ref), unif.c (scm_array_to_list):  Replace
        call to scm_makdbl with a call to scm_make_real or
        scm_make_complex, depending on whether the imaginary part is known
        to be zero.

2000-05-01  Gary Houston  <ghouston@arglist.com>

        * scmsigs.c: fix the definition of orig_handlers for the case
        that HAVE_SIGACTION is not defined (thanks to
        Kalle Olavi Niemitalo).

        * Makefile.am: remove include_HEADERS (was libguile.h)
        libguile.h: moved to top level directory.

2000-04-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (SCM_SWAP):  Moved to the top of the file to allow for
        a wider use.

        * numbers.c (scm_modulo, scm_gcd, scm_lcm, scm_logand, scm_logior,
        scm_logxor):  Reordered dispatch sequence, thereby fixing some
        comparisons of SCM values with integer constants.

        * number.c (scm_logtest):  Removed some redundant SCM_{N}?IMP
        tests.

2000-04-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_quotient, scm_remainder):  Removed code that was
        conditionally compiled based on BADIVSGNS.  BADIVSGNS does not
        occur anywhere else throughout guile.

        * numbers.c (scm_quotient):  Fixed parameter number in error
        message.

        * numbers.c (scm_remainder):  Reordered dispatch sequence.

2000-04-25  Gary Houston  <ghouston@arglist.com>

        * posix.c (scm_execlp): docstring fix (thanks to Martin
        Grabmueller).

2000-04-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (undef_object):  Made into a local static variable
        (suggested by Jost Boekemeier).

2000-04-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * pairs.c (cxrs, scm_init_pairs):  Simplify initialization of
        c[ad]+r functions.

        * procs.c (scm_init_iprocs), procs.h (scm_subr, scm_iproc,
        scm_dsubr, scm_init_iprocs):  Removed.

        * procs.h (SCM_SUBRF, SCM_DSUBRF):  Access the cell words
        directly instead of casting a cell to a C struct.

2000-04-22  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        Better modularization of GC extensions through new C level GC
        hooks:

        * weaks.c (scm_weaks_prehistory): New function: Add
        scm_weak_vector_gc_init to scm_before_mark_c_hook; Add
        scm_mark_weak_vector_spines to scm_before_sweep_c_hook.
        (scm_scan_weak_vectors): New function; added to
        scm_after_sweep_c_hook.

        * weaks.h (scm_weak_vectors, scm_weaks_prehistory): Added
        declarations.

        * guardians.h (scm_guardian_gc_init, scm_guardian_zombify): Are
        now static.

        * guardians.c (scm_guardian_gc_init): Turned into a hook function
        and added to scm_before_mark_c_hook.
        (scm_guardian_zombify): Turned into a hook function and added to
        scm_before_sweep_c_hook.

        * async.c (scm_sys_gc_async_thunk): Run after-gc-hook.
        Added #include "libguile/gc.h".

        * gc.h: Added #include "libguile/hooks.h".

        * gc.c: Removed #include "libguile/guardians.h".
        (scm_before_gc_c_hook, scm_before_mark_c_hook,
        scm_before_sweep_c_hook, scm_after_sweep_c_hook,
        scm_after_gc_c_hook): New C level hooks.
        (scm_after_gc_hook): New Scheme level hook.
        (scm_gc_sweep): Moved scanning of weak vectors to weaks.c.
        (scm_igc): Moved initialization of scm_weak_vectors and the call
        to scm_guardian_gc_init to respective module.
        (scm_mark_weak_vector_spines): Moved to weaks.c;
        Call to scm_guardian_zombify moved to guardians.c;
        Run scm_before_gc_c_hook, scm_before_sweep_c_hook,
        scm_after_gc_c_hook at appropriate places.
        (scm_init_gc): Initialize scm_after_gc_hook.

        * hooks.c, hooks.h (scm_make_hook_with_name): Removed deprecated
        function.

        * init.c (scm_boot_guile_1): Added `scm_init_hooks'.

        * Makefile.am: Added hooks.c, hooks.h, hooks.x.

        * feature.c, feature.h: Broke out hook code into separate files.

        * hooks.c, hooks.h: New files.

        * *.*: Change includes so that they always use the "prefixes"
        libguile/, qt/, guile-readline/, or libltdl/.
        (Thanks to Tim Mooney.)

        * Makefile.am (INCLUDES): Removed THREAD_CPPFLAGS and INCLTDL.
        (DEFS): Added.  automake adds -I options to DEFS, and we don't
        want that.
        Removed all -I options except for the root source directory and
        the root build directory.

        * numbers.c (scm_odd_p, scm_even_p): Use SCM_WRONG_TYPE_ARG
        instead of SCM_ASSERT (0, ...).  (Some compilers will complain
        about control reaching end of function otherwise, and, besides,
        the new code is not less clear.)

        * gc.c (scm_must_malloc, scm_must_realloc, scm_must_free): Added
        calls to malloc debugging functions.

        * init.c (scm_boot_guile_1): Added calls to debug-malloc init
        functions.

        * Makefile.am: Added debug-malloc.c, debug-malloc.h,
        debug-malloc.x.

        * debug-malloc.c, debug-malloc.h: New files.

2000-04-20  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_exact_p, scm_odd_p, scm_even_p):  Added
        documentation strings.

        * numbers.c (scm_exact_p, scm_odd_p, scm_even_p, scm_abs,
        scm_quotient):  Reordered dispatch sequence to first handle
        immediates, second handle bignums and finally handle generic
        functions respectively signal wrong type arguments.  Hopefully
        this will allow for easier separation when goops is integrated.

2000-04-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (which_seg):  Use SCM2PTR to convert a non immediate SCM
        variable into a pointer to a heap cell.

        * gc.c (scm_mark_locations, scm_cellp, init_heap_seg,
        scm_unhash_name):  Remove redundant cast to SCM_CELLPTR.

2000-04-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * print.c (scm_iprin1):  Don't assign zero to SCM values, use
        SCM_UNDEFINED instead.

        * weaks.c (scm_make_weak_vector):  Fix assignment of zero to a
        vector element.  (Still to be improved)

2000-04-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (undef_cell):  Removed, replaced by:

        (undef_object):  Added to replace undef_cell.

        (scm_lookupcar, scm_lookupcar1):  Use undef_object.

        * eval.c (scm_lookupcar, scm_lookupcar1, scm_m_atfop,
        scm_m_atbind, CHECK_EQVISH, SCM_CEVAL), procs.h (SCM_SETCODE):
        Don't perform arithmetic operations with SCM values.

        * eval.c (scm_lookupcar, scm_lookupcar1, scm_m_atfop,
        scm_m_atbind, scm_eval_args, scm_deval_args, SCM_CEVAL):  Use
        symbolic names for the tc3 type codes.

        * eval.c (scm_m_define, SCM_CEVAL, SCM_APPLY):  Remove redundant
        cast to SCM.

        * eval.c (scm_eval_args, scm_deval_args, SCM_CEVAL):  Made the
        access of the struct vcell element explicit.

2000-04-19  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * struct.c (scm_struct_free_light, scm_struct_free_standard,
        scm_struct_free_entity): Use `scm_must_free' instead of `free'.

        * procs.c (scm_make_subr_opt): Tell scm_must_realloc that we're
        realloc:ing scm_subr_table ("what" instead of "who").

        * numbers.c (scm_adjbig): Ditto.

Tue Apr 18 08:22:41 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * validate.h: Do not cast to (unsigned) in SCM_VALIDATE_INUM_RANGE
        when testing high-end of the range.  Mikael Djurfeldt noticed this
        anomaly -- thanks Mikael!

2000-04-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * unif.c (l2ra):  Don't eliminate the call to scm_array_set_x
        itself, as was done in the previous 'patch'.  (Thanks to Radey
        Shouman)

2000-04-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * options.c (scm_options), read.c (recsexpr):  Remove redundant
        SCM_IMP test.

        * print.c (scm_iprin1):  Made the access of the struct vcell
        element explicit.

        * print.h (SCM_PRINT_CLOSURE):  Added call to SCM_PACK.

        * ramap.c (scm_ra_eqp, ra_compare), unif.c
        (scm_uniform_vector_ref, scm_cvref, rapr1):  Separated accesses to
        unsigned long and signed long arrays and clarified the way the
        access is performed.

        * ramap.c (scm_array_map_x, raeql), read.c (scm_lreadr), stacks.c
        (narrow_stack), unif.c (scm_cvref, scm_uniform_array_read_x,
        scm_raprin1):  Use SCM_EQ_P to compare SCM values.

        * strings.c (scm_makstr):  Treat the msymbol slots as a field of
        scm_bits_t values.

        * struct.h (SCM_SET_VTABLE_DESTRUCTOR):  Treat the struct data as
        a field of scm_bits_t values.

        * unif.c (l2ra):  Don't test result of scm_array_set_x against
        zero:  It is always SCM_UNSPECIFIED.

2000-04-18  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * script.c (scm_compile_shell_switches): Also enable
        record-positions when given the --debug option.  (Thanks to Diego
        Dainese.)

2000-04-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * print.c (ENTER_NESTED_DATA, print_circref, scm_iprlist):
        Compare SCM's with SCM_EQ_P.

        * print.c (scm_make_print_state), srcprop.c
        (scm_source_properties):  Use valid scheme object to initialize
        SCM variable.

        * print.c (scm_iprin1):  Remove redundant calls to SCM_UNPACK.

2000-04-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * struct.c (scm_alloc_struct, scm_struct_free_0,
        scm_struct_free_light, scm_struct_free_standard,
        scm_struct_free_entity, scm_make_struct, scm_make_vtable_vtable),
        struct.h (scm_struct_free_t, scm_alloc_struct, scm_struct_free_0,
        scm_struct_free_light, scm_struct_free_standard,
        scm_struct_free_entity):  Struct data regions (and thus also
        vtable data regions) are now C arrays of scm_bits_t elements.

        * gc.c (scm_gc_mark, scm_gc_sweep, scm_unhash_name):  Made the
        mixup of glocs and structs explicit.

        * gc.c (scm_unprotect_object):  Compare SCM's with SCM_EQ_P.

2000-04-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_unmemocar):  Use macros to test for gloc cell.
        Minimize scope of variable 'ir'.

        * eval.h (SCM_IFRAME, SCM_IDIST), weaks.h (SCM_IS_WHVEC_ANY):
        Added missing call to SCM_UNPACK.

2000-04-17  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * validate.h (SCM_VALIDATE_INUM_RANGE_COPY,
        SCM_VALIDATE_NUMBER_COPY): New macros.

2000-04-16  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * script.c (scm_compile_shell_switches): Added --debug option.

2000-04-16  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * vectors.c (scm_vector_set_x): Return SCM_UNSPECIFIED (as
        specified by R5RS).

2000-04-15  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * ports.h (SCM_INPUT_PORT_P, SCM_OUTPUT_PORT_P): New macros.
        (SCM_INPORTP, SCM_OUTPORTP): Marked as deprecated.

        * validate.h (SCM_VALIDATE_INPUT_PORT, SCM_VALIDATE_OUTPUT_PORT):
        New macros.
        Cleanup of code layout.

        * ports.c, ports.h (close-input-port, close-output-port): New R5RS
        procedures.

2000-04-13  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * continuations.c (scm_make_cont, scm_dynthrow):  Completely
        separated implementations for defined (CHEAP_CONTINUATIONS) and
        !defined (CHEAP_CONTINUATIONS).  Also, now using memcpy for stack
        copying.

        * continuations.c (grow_stack):  Renamed from grow_throw.

        * continuations.c (copy_stack_and_call):  New static function.

        * continuations.c (scm_dynthrow):  Simplified and made static.

        * continuations.h (scm_dynthrow):  Made static.

2000-04-13  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * unif.c, unif.h (shared-array-root, shared-array-offset,
        shared-array-increments): New primitives.

2000-04-12  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.c (scm_gc_sweep):  Simplify the computation of freed memory
        size for msymbols.

        * symbols.h (SCM_SLOTS, SCM_SYMBOL_FUNC, SCM_SYMBOL_PROPS,
        SCM_SYMBOL_HASH):  The msymbol slots are now a field of scm_bits_t
        values.

        * symbols.h (SCM_SET_SYMBOL_FUNC, SCM_SET_SYMBOL_PROPS):  New
        macros.

        symbols.c (scm_intern_obarray_soft, msymbolize, scm_symbol_fset_x,
        scm_symbol_pset_x):  Use them.

        * symbols.c (scm_symbol_hash):  Unpack to access SCM raw data.

2000-04-12  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * ports.c (scm_port_print):  The port data is read as raw data.

        * ports.h (SCM_TC2PTOBNUM, SCM_PTOBNUM):  Fix SCM/scm_bits_t
        mismatch.

2000-04-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (SCM_CEVAL), objects.c (scm_mcache_lookup_cmethod,
        scm_make_subclass_object), objects.h (SCM_CLASS_FLAGS,
        SCM_ENTITY_PROCEDURE, SCM_ENTITY_SETTER), struct.c
        (scm_struct_init, scm_struct_vtable_p, scm_make_struct,
        scm_struct_ref, scm_struct_set_x), struct.h (SCM_STRUCT_DATA):
        The struct data is now an array of scm_bits_t variables.

        * objects.h (SCM_SET_ENTITY_PROCEDURE):  New macro.

        objects.c (scm_set_object_procedure_x):  Use it.

        * struct.c (scm_struct_init):  Unused variable 'data' removed.

        (scm_struct_vtable_p):  Redundant SCM_IMP tests removed.

2000-04-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * objects.h (SCM_OBJ_CLASS_FLAGS, SCM_OBJ_CLASS_REDEF), struct.h
        (SCM_STRUCT_VTABLE_DATA, SCM_STRUCT_LAYOUT, SCM_STRUCT_VTABLE,
        SCM_STRUCT_PRINTER):  The struct vtable data is now an array of
        scm_bits_t variables.

        * struct.h (SCM_SET_STRUCT_LAYOUT):  New macro.

        struct.c (scm_make_vtable_vtable):  Use it.

2000-04-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * symbols.c (scm_sym2vcell, scm_sym2ovcell_soft, scm_sym2ovcell,
        scm_intern_obarray_soft, scm_sysintern0,
        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):  Don't use C operators to
        compare SCM values.

2000-04-11  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_quotient, scm_modulo):  Reordered to handle the
        case of immediate numbers parameters first.  Also, only use
        decoded numbers for numerical comparison.

2000-04-10  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * objects.h: Don't redeclare scm_call_generic_0 and
        scm_apply_generic.  (Thanks to Tal Tversky.)

2000-04-10  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * hash.c (scm_hasher):  Use symbolic names for the tc3 constants.
        Unpack SCM value to use it as a switch parameter.  Don't cast SCM
        values to int values.

2000-04-10  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * coop.c (mother): Handled EINTR (the wait has been interrupted by
        a signal).

2000-04-07  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * __scm.h (SCM_WTA_DISPATCH_[012n]):  To test whether a SCM value
        contains a raw zero value it has to be unpacked.

        * debug.c (with_traps_inner, scm_with_traps):  Passing SCM values
        via void * requires unpacking / packing.

        * stacks.h (SCM_STACKP):  Remove unnecessary SCM_NIMP test and use
        SCM_EQ_P to compare SCM values.

        * stacks.h (SCM_FRAME_VOID_P, SCM_FRAME_REAL_P, SCM_FRAME_PROC_P,
        SCM_FRAME_EVAL_ARGS_P, SCM_FRAME_OVERFLOW_P):  Remove unnecessary
        call to SCM_UNPACK.

        * tags.h (SCM_NECONSP):  Define in terms of SCM_ECONSP

        * tags.h (SCM_ECONSP):  Clarify the test for glocs.  This is still
        quite ugly.

2000-04-05  Michael Livshin  <mlivshin@bigfoot.com>

        * async.[ch]: unexpose low-level async access macros (thanks to
        Dirk Herrmann).

        * validate.h: move async validation macros to async.c (nobody else
        needs them anyway), and rename them.

2000-04-04  Michael Livshin  <mlivshin@bigfoot.com>

        * async.h: kill the scm_async_t struct.  having a heap cell
        pretending to be a C struct is not helthy, and is not needed here
        anyway, as asyncs happily fit in one heap cell.

        * async.c: reflect the fact that asyncs are now represented by
        single heap cell each.

2000-04-04  Gary Houston  <ghouston@arglist.com>

        * error.c (scm_syserror): save errno before doing anything else,
        since it's used in two expressions and may get mutated (thanks to
        Dirk Herrmann).

2000-04-04  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * debug.c (scm_procedure_source, scm_procedure_environment),
        gsubr.c (scm_make_gsubr_with_generic, scm_gsubr_apply), procs.c
        (scm_procedure, scm_setter):  Return valid scheme value as dummy.

        * filesys.c (scm_readdir, scm_rewinddir, scm_closedir,
        scm_dir_print, scm_dir_free), numbers.h (SCM_COMPLEX_REAL,
        SCM_COMPLEX_IMAG), regex-posix.h (SCM_RGX), throw.c (JBJMPBUF,
        SETJBJMPBUF, JBJMPBUF, SETJBJMPBUF, freejb, print_lazy_catch,
        scm_ithrow), unif.c (scm_uniform_vector_ref, scm_cvref,
        scm_array_set_x, rapr1), unif.h (SCM_ARRAY_V, SCM_ARRAY_BASE),
        vectors.h (SCM_VELTS, SCM_VELTS_AS_STACKITEMS, SCM_SETVELTS):  Use
        SCM_{SET_}?CELL_WORD* to access cell entries with raw data.

        * filesys.c (scm_closedir), numbers.c (scm_addbig), numbers.h
        (SCM_SETNUMDIGS), throw.c (JBACTIVE, SCM_JBDFRAME,
        SCM_SETJBDFRAME): Read and modify data bits in cell entry #0 using
        SCM_{SET_}?CELL_WORD_0.

        * filesys.c (fill_select_type, retrieve_select_type, scm_select),
        numbers.c (scm_gcd, scm_lcm, scm_integer_expt, scm_zero_p,
        scm_product, scm_divide), posix.c (scm_getgrgid), ramap.c
        (scm_array_fill_int, racp), throw.c (scm_catch, scm_lazy_catch,
        scm_ithrow), unif.c (scm_make_uve, scm_array_p,
        scm_transpose_array, scm_array_set_x, scm_bit_set_star_x,
        scm_bit_count_star, l2ra), variable.c (prin_var,
        scm_make_variable, scm_make_undefined_variable,
        scm_builtin_variable), vectors.c (scm_vector_set_length_x),
        vports.c (sf_flush, sf_close):  Don't use C operators to compare
        SCM values.

        * numbers.c (scm_odd_p, scm_even_p), variable.c (prin_var):  Must
        unpack SCM values to access their raw contents.

        * numbers.c (big2str):  Eliminate unnecessary casts to SCM.

        * numbers.h (SCM_NEWREAL), regex-posix.h (SCM_RGXP), vports.c
        (scm_make_soft_port):  Use SCM_{SET_}?CELL_TYPE to access the cell
        type information.

        * throw.c (printjb):  Eliminated unnecessary unpack.

        * variable.c (make_vcell_variable):  Smob data is of type
        scm_bits_t.

2000-04-04  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * print.c: Removed promise to rewrite printer code before next
        release.  :)

2000-04-03  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * iselect.c (add_fd_sets): Insert empty statement after label.
        (Thanks to Tim Mooney.)

2000-04-03  Michael Livshin  <mlivshin@bigfoot.com>

        * guardians.c (scm_guardian_zombify): mark all zombies in a
        separate loop after processing all the currently known live
        guardians, so as to not introduce order dependencies (thanks to
        Gary Houston).  note that the order problems are still there if
        some guardians are themselves zombies, but that's a sick case that
        I'm not going to worry about.
        also, make another outer loop to process zombified
        guardians (which are uncovered while marking zombies).

2000-04-03  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * evalext.c (scm_definedp, scm_m_undefine), gc.c
        (scm_mark_weak_vector_spines, scm_gc_sweep), hashtab.c
        (scm_hashq_ref, scm_hashv_ref, scm_hash_ref, scm_hashx_ref),
        keywords.c (scm_make_keyword_from_dash_symbol), lang.c
        (scm_nil_eq), lang.h (SCM_NILP, SCM_NIL2EOL), load.c
        (scm_primitive_load), modules.c (scm_module_full_name), objects.c
        (scm_class_of, scm_mcache_lookup_cmethod, scm_make_class_object),
        ports.c (scm_close_all_ports_except), ports.h (SCM_EOF_OBJECT_P),
        print.c (scm_iprin1, scm_prin1, scm_iprlist, scm_simple_format),
        print.h (SCM_PRINT_STATE_P), procprop.c (scm_i_procedure_arity,
        scm_stand_in_scm_proc, scm_procedure_property,
        scm_set_procedure_property_x), procs.c
        (scm_procedure_documentation), read.c (scm_lreadr, scm_lreadparen,
        scm_lreadrecparen, scm_read_hash_extend), script.c
        (scm_compile_shell_switches), srcprop.c (scm_source_property,
        scm_set_source_property_x), srcprop.h (SCM_WHASHFOUNDP), stacks.c
        (read_frame, NEXT_FRAME, read_frames, narrow_stack,
        scm_make_stack, scm_stack_id), strop.c (scm_i_index,
        scm_string_index, scm_string_rindex), struct.c (scm_struct_init),
        validate.h (SCM_VALIDATE_BOOL_COPY, SCM_VALIDATE_INUM_DEF,
        SCM_VALIDATE_INUM_DEF_COPY, SCM_VALIDATE_PROC,
        SCM_VALIDATE_ARRAY):  Don't use C operators to compare SCM values.

        * feature.c (make_hook), keywords.c
        (scm_make_keyword_from_dash_symbol), macros.c (scm_makacro,
        scm_makmacro, scm_makmmacro), print.c (scm_iprin1,
        scm_printer_apply, scm_port_with_print_state):  Smob data is of type
        scm_bits_t.

        * feature.c (print_hook), gc.c (scm_object_address), hash.c
        (scm_ihashq, scm_ihashv), print.c (scm_iprin1, scm_ipruk), smob.c
        (freeprint), struct.c (scm_print_struct):  Must unpack
        SCM values to access their raw contents.

        * fluids.c (apply_thunk, scm_with_fluids), hashtab.c (fold_proc,
        scm_hash_fold), load.c (load, scm_primitive_load):  Passing SCM
        values via void * requires unpacking / packing.

        * fports.c (scm_fport_buffer_add, scm_setvbuf), procs.h
        (SCM_SUBRNUM, SCM_SET_SUBRNUM), srcprop.h (SRCPROPBRK, SRCBRKP):
        Read and modify data bits in cell entry #0 using
        SCM_{SET_}?CELL_WORD_0.

        * fports.c (scm_fdes_to_port), gc.c (scm_gc_for_newcell,
        scm_gc_sweep, init_heap_seg), init.c (start_stack), ports.c
        (scm_void_port), procs.c (scm_make_subr_opt,
        scm_make_procedure_with_setter), root.c (scm_internal_cwdr),
        smob.c (scm_make_smob), strports.c (scm_mkstrport):  Use
        SCM_SET_CELL_TYPE to write the cell type information.

        * gc.c (scm_gc_mark):  Use SCM_CELL_OBJECT* to access SCM values
        from cells that are no scheme pairs.

        * gc.c (scm_gc_sweep), mallocs.c (prinmalloc), mallocs.h
        (SCM_MALLOCDATA, SCM_SETMALLOCDATA), print.c (scm_ipruk), random.h
        (SCM_RSTATE), root.h (SCM_ROOT_STATE), smob.c (scm_smob_free),
        srcprop.c (freesrcprops), srcprop.h (SRCPROPPOS, SRCPROPFNAME,
        SRCPROPCOPY, SRCPROPPLIST), struct.c (scm_make_struct,
        scm_make_vtable_vtable):  Use SCM_{SET_}?CELL_WORD* to access cell
        entries with raw data.

        * gc.c (scm_init_storage), sort.c (applyless), strop.c
        (scm_string_to_list):  Eliminate unnecessary casts to SCM.

        * mallocs.c (scm_malloc_obj):  Store result of malloc as raw
        data.

        * ports.c (scm_close_all_ports_except):  Duplicate documentation
        text removed.

        * print.c (scm_iprin1):  Use SCM_ITAG3.

        * procs.h (SCM_SET_SUBRNUM):  Fix shift direction.

        * snarf.h (SCM_GPROC, SCM_GPROC1, SCM_SYMBOL, SCM_GLOBAL_SYMBOL,
        SCM_KEYWORD, SCM_GLOBAL_KEYWORD, SCM_VCELL, SCM_GLOBAL_VCELL,
        SCM_VCELL_INIT, SCM_GLOBAL_VCELL_INIT):  Don't initialize globals
        and static variables at their point of declaration, but rather in
        the init function.

        * tags.h (SCM_PACK):  Automatically cast to scm_bits_t.

2000-04-02  Gary Houston  <ghouston@arglist.com>

        * guardians.c (TCONC_IN, scm_make_guardian): set the CDR of the
        empty tconc pair to SCM_EOL instead of SCM_BOOL_F, avoiding the
        use of an improper list (which breaks g_print.  g_print isn't
        used).
        guardians.c: Added more comments and modified the make-guardian
        docstring.  Reordered a few procedures.

2000-04-01  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.c (scm_lookupcar1, scm_lookupcar, scm_m_case, scm_m_cond,
        scm_m_lambda, iqq, scm_m_define, scm_m_expand_body, unmemocopy,
        SCM_CEVAL), procs.h (SCM_TOP_LEVEL):  Don't use C operators to
        compare SCM values.

        (scm_makprom):  Smob data is of type scm_bits_t.

2000-03-31  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * backtrace.c (display_error_body), debug.c (scm_procedure_source,
        scm_reverse_lookup), dynl.c (scm_dynamic_link):  Don't use C
        operators to compare SCM values.

        * debug.c (scm_make_debugobj), debug.h (SCM_DEBUGOBJ_FRAME,
        SCM_SET_DEBUGOBJ_FRAME):  Update SCM_{SET_}?DEBUGOBJ_FRAME to
        access raw cell data with SCM_{SET_}?CELL_WORD_1.

        * debug.c (scm_make_debugobj):  Don't use SCM_SETCAR to set types.

        * debug.c (scm_make_memoized), dynl.c (scm_dynamic_link):  Smob
        data is of type scm_bits_t.

2000-03-31  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gdbint.c (gdb_maybe_valid_type_p), guardians.c (TCONC_EMPTYP,
        scm_guardian_zombify):  Use SCM_EQ_P to compare SCM values.

        * guardians.c (GUARDIAN):  Use SCM_CELL_WORD_1 for raw data.

2000-03-31  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * ports.h (scm_port):  Change type of stream member to scm_bits_t.

        * gdbint.c (unmark_port, remark_port), ports.c (scm_markstream),
        strports.c (st_resize_port, scm_mkstrport), vports (sf_flush,
        sf_write, sf_fill_input, sf_close, scm_make_soft_port):  Since
        streams are now of type scm_bits_t, SCM streams have to be
        unpacked/packed.

        * ports.h (SCM_SETPTAB_ENTRY, SCM_SETSTREAM):  Cast input to
        scm_bits_t.

2000-03-31  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * coop-defs.h (struct coop_t): Added `sto'-field again because of
        binary compatibility---let's remove it next time we alter some
        major structure.

        * coop.c (coop_quitting_p, coop_cond_create, coop_mutex_create,
        coop_mother, coop_child): New variables.
        (mother): New function.
        (coop_create): New thread spawning mechanism which uses a "mother
        thread".  The "dummy" pthreads aren't healthy enough to give birth
        to new threads since Linux threads thinks they are asleep.

        * coop-defs.h (struct coop_t): Removed dummy_mutex.

        * coop-defs.h, coop-threads.c (struct coop_t): Eliminate
        `sto'-field when GUILE_PTHREAD_COMPAT is enabled.

2000-03-30  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * arbiters.c (scm_make_arbiter), async.c (scm_async), dynwind.c
        (scm_internal_dynamic_wind):  Smob data is always of type
        scm_bits_t.

        * arbiters.c (SCM_ARB_LOCKED, SCM_LOCK_ARB, SCM_UNLOCK_ARB):
        Access the locking information in cell entry 0 with
        SCM_{SET_}?CELL_WORD_0 instead of SCM_*CAR.

        * async.c (scm_run_asyncs):  Use SCM_NULLP to test for the empty
        list.

        * dynwind.c (scm_dowinds):  Use SCM_EQ_P to compare SCM values.

        * ports.h (SCM_PTAB_ENTRY, SCM_SETPTAB_ENTRY):  Access the ptab
        entry data using SCM_{SET_}?CELL_WORD_1 instead of SCM_{SET}?CDR.

2000-03-29  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * alist.c (scm_sloppy_assq, scm_assq), eq.c (scm_eq_p, scm_eqv_p,
        scm_equal_p), list.c (scm_ilength, scm_last_pair, scm_reverse,
        scm_sloppy_memq, scm_delq_x, scm_delq1_x), tags.h (SCM_UNBNDP):
        Don't use C operators == and != to compare SCM values, use
        SCM_EQ_P instead.

        * boolean.c (scm_boolean_p):  Use SCM_BOOLP to determine whether a
        SCM value is equal to #t or #f.

        * eq.c (scm_eqv_p, scm_equal_p):  Don't use SCM_CAR to access the
        cell type entry of non immediate objects of unknown type.  Use
        SCM_CELL_TYPE instead.

        * gh_data.c (gh_scm2bool, gh_module_lookup), list.c
        (scm_sloppy_memv, scm_sloppy_member, scm_delv_x, scm_delete_x,
        scm_delv1_x, scm_delete1_x), scmsigs.c (scm_sigaction):  Use
        SCM_FALSEP and SCM_TRUE_P to compare SCM values against #f and
        #t.

        * list.c (scm_listify):  Use SCM_UNBNDP to test for an unbound
        scheme value.

2000-03-29  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * coop-threads.c (scm_call_with_new_thread, scm_spawn_thread,
        scm_make_mutex, scm_make_condition_variable): Cast data to
        scm_bits_t in SCM_SET_CELL_WORD and SCM_NEWSMOB macros.

        * coop.c (coop_create): Set `specific' field, not `data' to NULL.

2000-03-29  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * smob.h (SCM_NEWSMOB, SCM_NEWSMOB2, SCM_NEWSMOB3, SCM_SMOB_DATA,
        SCM_SET_SMOB_DATA, SCM_TC2SMOBNUM, SCM_SMOBNUM):  To access smob
        data, use SCM_{SET_}?CELL_TYPE or SCM_{SET_}?WORD_[1-3].

        Note that this implies that smob data has always to be passed as
        values of type scm_bits_t.

2000-03-29  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * threads.c (scm_init_threads): Pass 0 size to scm_make_smob_type
        for scm_tc16_thread.  As the current COOP threads are written, GC
        is not supposed to manage storage for threads.

        * error.c (scm_error): Don't try to throw an error if
        scm_gc_heap_lock is true.

        * coop.c (coop_finish): New function.  Called at exit.
        (coop_aborthelp): Free thread structures when threads die.
        Finished LinuxThreads compatibility support => COOP threads now
        mesh with LinuxThreads.

        * coop-threads.c (scm_call_with_new_thread, scm_spawn_thread):
        Changed SETCDR --> SET_CELL_WORD_1.

        * coop-threads.c (scheme_launch_thread): Set word 1 of handle to 0
        when thread dies.

2000-03-29  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * boolean.h (SCM_TRUE_P):  New macro.

        * boolean.h (SCM_FALSEP, SCM_NFALSEP, SCM_BOOLP), pairs.h
        (SCM_NULLP, SCM_NNULLP):  Use SCM_EQ_P to compare SCM values.

2000-03-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * continuations.h (SCM_CONTREGS, SCM_SET_CONTREGS):  New macros to
        access continuation data.

        (SCM_SETJMPBUF):  Deprecated.  Use SCM_SET_CONTREGS instead.

        (SCM_JMPBUF, SCM_DYNENV, SCM_THROW_VALUE, SCM_BASE, SCM_SEQ,
        SCM_DFRAME):  Use SCM_CONTREGS instead of SCM_CHARS to access
        continuation data.

        * continuations.c (scm_make_cont), init.c (start_stack),
        root.c (scm_internal_cwdr):  Use SCM_SET_CONTREGS instead of
        SCM_SETJMPBUF.

2000-03-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * symbols.h (SCM_LENGTH, SCM_SETLENGTH):  Access the length field
        of strings and symbols by using SCM_{SET_}?CELL_WORD_0.

        (SCM_CHARS, SCM_UCHARS, SCM_SETCHARS):  Use SCM_{SET_}?CELL_WORD_1
        to access the char * field of strings and symbols.

2000-03-27  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * gc.h (SCM_NEWCELL, SCM_NEWCELL2):  Use SCM_SET_CELL_TYPE to set
        the type entry of a new cell.  Added a comment about things to
        remember when updating the list of free cells.

        (SCM_FREEP, SCM_MARKEDP):  Use SCM_CELL_TYPE to access the type
        entry of a cell.

2000-03-27  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * pairs.h (SCM_CAR, SCM_CDR, SCM_SETCAR, SCM_SETCDR):  Use
        SCM_CELL_OBJECT and SCM_SET_CELL_OBJECT.  This change implies that
        with strict type checking enabled these macros will only work if
        given valid SCM parameters.

        (SCM_GCCDR):  Moved to tags.h.

        * tags.h (SCM_GCCDR):  Moved here from pairs.h.

2000-03-26  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * tags.h (SCM2PTR, PTR2SCM):  Moved to gc.h.

        * pairs.h (scm_cell, SCM_CELLPTR, SCM_CELL_WORD*, SCM_CELL_OBJECT*,
        SCM_SET_CELL_WORD*, SCM_SET_CELL_OBJECT*, SCM_CELL_TYPE,
        SCM_SET_CELL_TYPE, SCM_PTR_LT, SCM_PTR_MASK, SCM_PTR_GT,
        SCM_PTR_LE, SCM_PTR_GE, SCM_CELL_WORD_LOC, SCM_NEWCELL,
        SCM_NEWCELL2):  Moved to gc.h.

        (SCM_CARLOC, SCM_CDRLOC, SCM_SETAND_CAR, SCM_SETAND_CDR,
        SCM_SETOR_CAR, SCM_SETOR_CDR):  Moved to gc.h.  These names should
        be changed, though, since the macros are not only pair related.

        (SCMPTR):  Deleted.

        * gc.h (SCM2PTR, PTR2SCM, scm_cell, SCM_CELLPTR, SCM_CELL_WORD*,
        SCM_CELL_OBJECT*, SCM_SET_CELL_WORD*, SCM_SET_CELL_OBJECT*,
        SCM_CELL_TYPE, SCM_SET_CELL_TYPE, SCM_PTR_LT, SCM_PTR_MASK,
        SCM_PTR_GT, SCM_PTR_LE, SCM_PTR_GE, SCM_CELL_WORD_LOC,
        SCM_NEWCELL, SCM_NEWCELL2, SCM_CARLOC, SCM_CDRLOC, SCM_SETAND_CAR,
        SCM_SETAND_CDR, SCM_SETOR_CAR, SCM_SETOR_CDR):  Moved here from
        tags.h and pairs.h.

2000-03-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * tags.h (SCM_STRICT_TYPING):  New macro that, if defined,
        activates strict compile time type checking for variables of
        type SCM.
        (SCM, SCM_PACK, SCM_UNPACK):  Define according to whether
        SCM_STRICT_TYPING or SCM_VOIDP_TEST are defined.
        (SCM_EQ_P):  Defined as a macro equivalent for eq?.

2000-03-25  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * tags.h (SCM_POINTERS_MUNGED):  Removed.

        * gc.c (scm_gc_sweep, init_heap_seg):  Removed use of
        SCM_POINTERS_MUNGED, thus fixing some illegal casts to SCM.

2000-03-24  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * pairs.h (SCM_CELL_OBJECT, SCM_CELL_OBJECT_[0-3],
        SCM_SET_CELL_OBJECT, SCM_SET_CELL_OBJECT_[0-3], SCM_CELL_TYPE,
        SCM_SET_CELL_TYPE):  Added a set of low level macros for accessing
        cell entries.
        (SCM_CELL_WORD_[0-3]): Renamed from the SCM_CELL_WORD[0-3].

        * procs.h, procs.c:  Instead of SCM_{SET_}?CELL_WORD[12], use the
        newly introduced SCM_{SET_}?CELL_OBJECT_[12] macros.

2000-03-23  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * tags.h: Disabled definition of SCM_VOIDP_TEST.

        Defining SCM as void * introduces problems which haven't been
        handled yet.  Developers who work with these issues can enable it
        in their working copies.

        Disabling this definition exposes a set of newly introduced and
        older misuses of types which causes warning messages during
        compilation.  We'll fix this successively.

        * gc.c (scm_mark_locations): Changed * (SCM **) X --> * (SCM *) X
        in order to obtain a value of type SCM.
        (scm_cellp): Updated with new changes to scm_mark_locations.

        * continuations.h (SCM_SETJMPBUF): Cast second arg into SCM.

        * continuations.c (scm_make_cont): Removed cast of size_t into
        long.

        * symbols.h (SCM_SETCHARS): Cast second arg into SCM.

2000-03-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.h (SCM_SETNUMDIGS):  Use SCM_BIGSIZEFIELD macro for
        shifting, not constant.  Thanks to Dale P. Smith.

        * numbers.c (scm_sum, scm_difference):  Don't test a SCM value
        for being less than zero.  Decode it to a C value first.  Again,
        thank you Dale.

2000-03-22  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.h, ramap.c, struct.h, vectors.h:  Don't use SCM2PTR for
        non scheme values.  If raw data is stored in SCM variables, it has
        to be accessed using SCM_UNPACK until a better solution is found.

2000-03-22  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * tags.h (SCM_ECONSP, SCM_NECONSP): More corrections of
        pointer-arithmetic induced by the SCM_PACK/UNPACK change.

        * print.c (scm_iprin1): SCM_PACK/UNPACK corrections.

        * gc.c (scm_gc_sweep): SCM_PACK/UNPACK corrections.

        * eval.c (SCM_CEVAL, scm_unmemocar): SCM_PACK/UNPACK corrections.

        * dynwind.c (scm_swap_bindings): SCM_PACK/UNPACK corrections.

        * async.c, __scm.h: Removed lots of the old async click logic.  It
        is possible to reinsert it by defining GUILE_OLD_ASYNC_CLICK in
        __scm.h.  Let's try this out and dump the old code after the
        threads reorganization.
        (set-tick-rate, set-switch-rate): Conditionally removed.

2000-03-21  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * gc.c (scm_gc_mark): Bugfix 1: The recent SCM_PACK/UNPACK change
        made SCM values into pointers.  This turned an arithmetic
        computation of the address of the vcell into a pointer-arithmetic
        one, thereby screwing up marking of structs.
        Bugfix 2: Removed incompletely introduced loop variable `j' used
        when protecting the tail array of a struct.

2000-03-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * struct.h (SCM_STRUCT_DATA):  Don't cast SCM values to pointers.

2000-03-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * symbols.h, symbols.c (scm_strhash):  Declare the string
        parameter as constant, since it is not modified.

        * symbols.c (scm_intern_obarray_soft,
        scm_sysintern0_no_module_lookup):  Can now pass constant strings
        to scm_strhash without need for casting.

2000-03-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * vectors.h (SCM_VELTS, SCM_VELTS_AS_STACKITEMS):  Don't cast SCM
        values to pointers.  Use SCM2PTR instead.

2000-03-21  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * async.c (scm_set_tick_rate, scm_set_switch_rate):  Don't unpack
        results of SCM_INUM.

2000-03-21  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * init.c (scm_boot_guile_1): Renamed GUILE_GC_TRIGGER_1 -->
        GUILE_MIN_YIELD_1, GUILE_GC_TRIGGER_2 --> GUILE_MIN_YIELD_2.
        GUILE_MIN_YIELD_X now take *positive* fractions of heap size.

        * gc.c, gc.h (SCM_MIN_YIELD_1, SCM_MIN_YIELD_2,
        min_yield_fraction, min_yield, adjust_min_yield): Renamed from
        SCM_GC_TRIGGER_1, SCM_GC_TRIGGER_2, gc_trigger_fraction,
        gc_trigger, adjust_gc_trigger.

        * gc.c (alloc_some_heap): Further improvement of minimal heap size
        prediction.
        (SCM_MAX): New macro.
        (scm_freelist_t): New field: collected_1. Previous amount of
        collected cells.
        (gc_sweep_freelist_finish): Trigger based on two last values of
        freelist->collected to avoid unnecessary allocation due to
        temporary peaks.
        (SCM_INIT_HEAP_SIZE_1, SCM_GC_TRIGGER_1, SCM_GC_TRIGGER_2):
        Adjusted to 45000 cells, 40% and 40%.  Gives quick startup
        without extra heap allocation.

2000-03-20  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.h (SCM_MAKINUM):  The parameter to SCM_MAKINUM should
        already be a C value.  No need to unpack it.

        * numbers.c (scm_long_long2num):  Cast the parameter to scm_bits_t
        if we know it fits into an inum.

        * ramap.c (ramap_rp):  An scm_tc7_[ui]vect object does point to a
        field of long values.  In contrast, SCM_VELTS accesses a field of
        SCM values.

2000-03-20  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * gc.c (scm_gc_stats): Inserted explanation of local_scm_mtrigger
        etc.
        (scm_gc_yield_1): New variable: Holds previous yield.  Used to
        make better judgements.
        (gc_sweep_freelist_finish): Inserted explanation of use of
        gc_trigger.

        * print.h, stacks.h, options.c, options.h: Changed C++
        commentaries to C.

2000-03-20  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * tags.h (SCM2PTR, PTR2SCM):  Use SCM_PACK / SCM_UNPACK correctly.

        * numbers.h (SCM_INUMP, SCM_MAKINUM, SCM_INUM0, SCM_COMPLEX_REAL,
        SCM_COMPLEX_IMAG, SCM_NUMP, SCM_BDIGITS):  Use SCM_PACK /
        SCM_UNPACK / SCM2PTR correctly.

2000-03-20  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * gc.c (adjust_gc_trigger): Improved documentation.
        (alloc_some_heap): Since gc_trigger is used against
        freelist->collected, this is the value which should be used to
        predict minimum growth.

2000-03-20  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * eval.h:  Fix mixup of packed/unpacked SCM values.  (Thanks
        Thien-Thi Nguyen for the patch.)

2000-03-20  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * numbers.c (scm_ash):  Fixed typing problems with the second
        parameter and added some documentation.  (Thanks Thien-Thi Nguyen
        for indicating the problem.)

2000-03-19  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * gc.c, gc.h (scm_gc_yield): New variable.
        (adjust_gc_trigger): Use scm_gc_yield.
        (alloc_some_heap): Use scm_gc_yield instead of
        scm_gc_cells_collected.

        * coop-threads.c: Addd #include "root.h", #include "strings.h".

        * debug.c: Added #include "root.h".  (Thanks to Thien-Thi Nguyen.)

        * gc.c (scm_gc_for_newcell, adjust_gc_trigger): Improved GC
        trigger adjustmeant: Take yield (freed cells) for all freelists
        into account.
        (SCM_INIT_HEAP_SIZE_1, SCM_GC_TRIGGER_1, SCM_GC_TRIGGER_2): Tuned
        to 50000 cell heap with 45% trigger.
        (scm_gc_cells_collected): Reintroduced.
        (SCM_HEAP_SIZE): New macro.
        (scm_gc_sweep): Reintroduced correct computation of
        scm_cells_allocated.
        (scm_freelist_t): Corrected commentary for field `cluster_size':
        Clustersize counts objects, not cells;  New member
        `clusters_allocated'.

2000-03-19  Michael Livshin  <mlivshin@bigfoot.com>

        * *.[hc]: add Emacs magic at the end of file, to ensure GNU
        indentation style.

2000-03-19  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * threads.h: Added #include "libguile/throw.h".  (Thanks to
        Thien-Thi Nguyen.)

2000-03-18  Michael Livshin  <mlivshin@bigfoot.com>

        * tags.h: (SCM_DOUBLE_CELLP, SCM_NDOUBLE_CELLP): new macros (bad
        names, anyone got any better ones?)

        * gc.h: (typedef struct scm_freelist_t) remove from here.

        * gc.c: (CELL_UP, CELL_DN) made these macros take additional
        parameter (the span).
        (CLUSTER_SIZE_IN_BYTES, ALIGNMENT_SLACK) new macros.
        (typedef struct scm_freelist_t) moved here from gc.h, it had no
        business being externally visible.
        (typedef struct scm_heap_seg_data_t) renamed from
        scm_heap_seg_data, to be style-compliant.
        (scm_mark_locations) if the possible pointer points to a
        double-cell, check that it's properly aligned.
        (init_heap_seg) align double-cells properly, work with the
        assumption that the segment size divides cleanly by cluster size.
        (round_to_cluster_size) new function.
        (alloc_some_heap, make_initial_segment) use round_to_cluster_size
        to satisfy the new init_heap_seg invariant.

2000-03-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * _scm.h:  Don't include async.h everywhere...

        * eq.c eval.c iselect.c: ... only include it here.

2000-03-18  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * _scm.h:  Don't include root.h everywhere...

        * async.c continuations.c eq.c eval.c evalext.c feature.c gc.c
        gdbint.c gsubr.c ioext.c keywords.c lang.c load.c macros.c
        numbers.c objprop.c ports.c print.c procprop.c ramap.c read.c
        srcprop.c stackchk.c stacks.c strports.c symbols.c unif.c
        variable.c vectors.c vports.c: ... only include it here.

2000-03-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * _scm.h:  Don't include strings.h everywhere...

        * backtrace.c dynl.c error.c feature.c filesys.c fports.c gc.c
        gdbint.c ioext.c load.c net_db.c numbers.c objects.c options.c
        ports.c posix.c print.c procs.c random.c read.c regex-posix.c
        simpos.c socket.c stacks.c stime.c strop.c strports.c struct.c
        symbols.c unif.c vectors.c version.c vports.c: ... only include it
        here.

2000-03-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * _scm.h:  Don't include ports.h everywhere...

        * arbiters.c backtrace.c debug.c dynl.c dynwind.c eval.c feature.c
        fluids.c gc.c gdbint.c guardians.c hash.c keywords.c mallocs.c
        numbers.c objects.c print.c read.c root.c smob.c srcprop.c
        stackchk.c strports.c struct.c throw.c variable.c:  ... only
        include it here.

2000-03-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * _scm.h:  Don't include vectors.h everywhere...

        * eq.c eval.c filesys.c gc.c gsubr.c guardians.c hash.c hashtab.c
        keywords.c net_db.c numbers.c objects.c posix.c print.c procprop.c
        procs.c ramap.c random.c read.c scmsigs.c socket.c sort.c stime.c
        strports.c symbols.c unif.c vports.c weaks.c:  ... only include it
        here.

2000-03-17  Dirk Herrmann  <D.Herrmann@tu-bs.de>

        * genio.h:  removed.  (Only content was '/* delete me */'.)

        * Makefile.am arbiters.c backtrace.c debug.c dynl.c dynwind.c
        error.c filesys.c fluids.c gc.c gsubr.c guardians.c keywords.c
        libguile.h mallocs.c numbers.c print.c random.c read.c root.c
        srcprop.c stackchk.c struct.c threads.c throw.c variable.c:
        Removed reference to genio.h

2000-03-17  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * gc.c, gc.h: Cleanup of the change of 2000-03-15.
        Cluster sizes are now independent of GC trigger values.
        GUILE_GC_TRIGGER_n can now specify a relative trigger value:
        A negative integer gives fraction of total heap size in percent.
        (SCM_GC_TRIGGER_1, SCM_GC_TRIGGER_2): Default values set to -40.

        * init.c (scm_boot_guile_1): Introduced new variable
        GUILE_MAX_SEGMENT_SIZE; New environment variable names:
        GUILE_INIT_SEGMENT_SIZE_1, GUILE_GC_TRIGGER_1,
        GUILE_INIT_SEGMENT_SIZE_2, GUILE_GC_TRIGGER_2

2000-03-16  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * __scm.h (GC_FREE_SEGMENTS): Disable this until we have made
        freeing of segment work with the new GC scheme.  (Thanks to
        Michael Livshin.)  Oops, also happened to make GUILE_NEW_GC_SCHEME
        the default, but I'll let this change stay in CVS Guile since this
        code is not expected to contain serious bugs.

2000-03-16  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * gc.c, gc.h (scm_map_free_list): Define also if GUILE_DEBUG is
        defined.
        (scm_free_list_length): New procedure (GUILE_DEBUG).
        Fixed a small but serious bug introduced by the previous change.

        * gc.c (scm_gc_sweep): Moved variable n_objects to inner sweep
        loop and declare as register.

        * gc.c (scm_gc_sweep): Sigh... forgot to clear private freelists
        after GC.

Wed Mar 15 08:27:04 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * fluids.c: Docstring patch from Keisuke Nishida.  Some
        reindentation, too, and a couple formals renamed.  Should
        fluid-set! return UNSPECIFIED instead of a value?

Wed Mar 15 08:24:58 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * Makefile.am: Separate out DOT_X_FILES and DOT_DOC_FILES, and
        generate the latter from the concrete listing of the former.  Then
        make guile-procedures.txt depend on DOT_DOC_FILES instead of
        *.doc, so that rebuilding it works.

Wed Mar 15 08:12:14 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * libguile.h: Include libguile/validate.h.  Thanks Keisuke Nishida!

        * guile-snarf.awk.in: Replace docstring line-ending \n" and \n\n"
        with nothing and \n, respectively. Thanks Keisuke Nishida for
        noticing this problem.

2000-03-15  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * __scm.h (GUILE_NEW_GC_SCHEME): Define this if you want to test a
        new way of allocating heap.  It makes Guile fast, but still
        contains bugs.

        * gc.c, gc.h, pairs.h, init.c: Implementation of a new way of
        allocating heap.  The basic idea is to trigger GC every Nth
        allocated cell and grow heap when free list runs out.  The scheme
        has been extended so that GC isn't triggered until all remaining
        cells are used.  The implementation is also prepared for
        development in the direction of POSIX threads.

        * gc.c (SCM_EXPHEAP): In order to grow by a factor of 1.5,
        SCM_EXPHEAP should return half of the heap size.

2000-03-14  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        The following change to init.c is only enabled if Guile was
        configured with --enable-guile-debug.

        * init.c (scm_i_getenv_int): New function.
        (scm_boot_guile_1): Use the environment variables
        GUILE_INIT_HEAP_SIZE, GUILE_INIT_HEAP_SIZE2 to select heap size if
        they exist.  (This may be replaced by a Scheme level mechanism in
        the future.)

        * objprop.c (s_scm_set_object_property_x): Use scm_assq instead of
        scm_assoc.  (Thanks to Keisuke Nishida.)

2000-03-14  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * eval.c, lang.c, lang.h (scm_lisp_nil, scm_lisp_t): Renamed from
        scm_nil, scm_t.  (Thanks to Keisuke Nishida.)

2000-03-14  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * init.c (scm_boot_guile_1): Use same initial segment size for
        1-word and 2-word segments.  Having the smaller size causes Guile
        to GC too often.  Obviously something needs to be done to allow
        for a smaller 2-word segment without this to happen.  (The amount
        of heap for each type should be automatically adapted to the
        application somehow.)

        [Almost all of these changes should be documented in the NEWS
        file.]

        * gc.h (scm_freelist_t): New type.

        * pairs.h (SCM_NEWCELL, SCM_NEWCELL2): Use new style freelists.

        * gc.c (SCM_INIT_HEAP_SIZE): Changed from 32768 --> 40000 so that
        all of Guile basics fits into one segment and there suitable room
        for work.
        (SCM_EXPHEAP): Now takes an argument.  Grow by a factor of 1.5
        instead of 2.
        (scm_freelist, scm_freelist2): Now of type scm_freelist_t.
        Freelists now contains information about object span, cells
        collected and amount of cells in heap segments belonging to the
        list.
        (scm_heap_size, scm_gc_cells_collected): Removed.

        * init.c (scm_boot_guile_1): Make 2-word segment 8K (512 cells).

        * Makefile.am (libguile_la_LDFLAGS): Bumped library version
        number.

        * __scm.h eq.c, eval.c, gc.c, gc.h, gh_data, hash.c, numbers.c,
        numbers.h, objects.c, ramap.c, random.c, unif.c, unif.h: Extensive
        rewrite of handling of real and complex numbers.
        (SCM_FLOATS, SCM_SINGLES): These #ifdef conditionals have been
        removed along with the support for floats.  (Float vectors are
        still supported.)

        * tags.h (scm_tcs_bignums): Removed.
        (scm_tc16_bigpos, scm_tc16_bigneg): Replaced by scm_tc16_big.
        Use SCM_BIGSIGN(x) to test for sign!
        (scm_tc16_big): The new bignum type.
        (SCM_REAL_PART, SCM_IMAG_PART): Removed.

        * numbers.h (SCM_BIGSIGN): Sign moved to bit 16.
        (scm_makdbl): Deprecated.
        (SCM_NEWREAL, SCM_NEWCOMPLEX): New macros.
        (SCM_SINGP): Deprecated.
        (SCM_FLO): Removed.
        (SCM_INEXP, SCM_CPLXP): Deprecated.
        (SCM_INEXACTP, SCM_COMPLEXP): New macros.
        (SCM_COMPLEX_REAL, SCM_COMPLEX_IMAG): Renamed from
        SCM_REAL, SCM_IMAG (and now only valid for complex numbers).
        (SCM_REAL, SCM_IMAG): New, *deprecated*, selectors which work both
        for doubles and complex numbers.
        (SCM_REAL_VALUE): New selector for doubles.
        (scm_double_t, scm_complex_t): New types.
        (scm_dbl): Removed.

        * numbers.c (scm_floprint, scm_floequal): Removed.
        (scm_print_real, scm_print_complex, scm_real_equalp,
        scm_complex_equalp): New functions.

        * unif.c (scm_makflo): Removed.

        * smob.h (SCM_SMOB_PREDICATE): New macro.
        (SCM_NEWSMOB2, SCM_RETURN_NEWSMOB2, SCM_NEWSMOB3,
        SCM_RETURN_NEWSMOB3): New macros.

1999-11-21  Michael Livshin  <mlivshin@bigfoot.com>

        The following changes implement primitive support for double cells
        (i.e. four-word cells) and change the representation of some
        things to multi-cells instead of cons+malloc.  (Applied and
        modified by mdj.)

        * pairs.h (SCM_NEWCELL2): double-cell variants of SCM_NEWCELL.
        (SCM_CELL_WORD, SCM_CELL_WORDLOC, SCM_SET_CELL_WORD): primitive
        multi-cell access macros (used by the ones below).
        (SCM_CELL_WORD[0-3], SCM_SET_CELL_WORD[0-3]): multi-cell access
        macros.

        * gc.c (scm_freelist2): multi-cell freelists.
        (inner_map_free_list): map_free_list, parameterized on ncells.
        "nn cells in segment mm" was misleading for ncells > 1; changed to
        "objects".  still print cells too, though.
        (scm_map_free_list): rewritten using inner_map_free_list.
        (scm_check_freelist): get freelist as parameter, since now we have
        more than one.
        (scm_debug_newcell2): multi-cell variants of
        scm_debug_newcell.
        (scm_gc_for_newcell): take ncells and freelist pointer as
        parameters.
        (scm_gc_mark): add case for tc7_pws (procedures with setters are
        now double cells).
        (scm_gc_sweep): don't free the float data, since it's not malloced
        anymore.
        (init_heap_seg): didn't understand what n_new_objects stood for,
        so changed to n_new_cells.
        (make_initial_segment): new function, makes an initial segment
        according to given ncells.
        (scm_init_storage): call make_initial_segment, for ncells={1,2,3}.

        * numbers.c (scm_makdbl): no malloc'ing needed, so the
        {DEFER,ALLOW}_INTS thing removed.

        * numbers.h (struct scm_dbl): changed to represent a double cell,
        with the number in the second half.

        * dynwind.c: changed the wind-guards representation to double
        cell.

        * procs.c, procs.h: changed the procedure-with-setter representation
        to double cell.

        * async.c, async.h: made async representation a double cell.

        * dynl.c: made dynamic_obj representation a double cell.

2000-03-13  Gary Houston  <ghouston@arglist.com>

        * ports.c (flush_void_port): renamed to flush_port_default.
        (end_input_void_port): renamed to end_input_default.

        * init.c (scm_standard_stream_to_port): create a void port instead
        of opening /dev/null if the standard file descriptors are bad.
        advantages: no portability problems, doesn't waste a file descriptor,
        simplifies the code (thanks to Marius for the idea).

        * vports.c (s_scm_make_soft_port): call scm_port_non_buffer.

        * void ports: make reading from a void port give EOF instead of
        segv:
        * ports.c (s_scm_sys_make_void_port): modified docstring.
        (fill_input_void_port): new proc.
        (scm_init_ports): set up fill_input_void_port.
        * ports.c (scm_port_non_buffer): new proc.
        (scm_void_port): call scm_port_non_buffer.

        * fports.c (scm_setvbuf): docstring: remove the fcntl documentation
        which was incorrectly appended.

2000-03-13  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * guile-doc-snarf.in: Don't use absolute path for `sed'.  (Note
        that we can't use autoconf for this.  Autoconf itself relies on
        the existence of `sed' somewhere on your path.)  (Thanks to Dirk
        Herrman.)

2000-03-13  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * Makefile.am (libguile_la_SOURCES): Moved iselect.c here from
        EXTRA_libguile_la_SOURCES.

        * iselect.h: Always declare scm_internal_select.

        * iselect.c (scm_internal_select): Added SCM_ASYNC_TICK at the
        end.  Also let scm_internal_select be a real function also when
        not using threads.

        * __scm.h (SCM_TICK): Oops! Forgot to put SCM_ASYNC_TICK here...

2000-03-13  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * __scm.h (SCM_ALLOW_INTS, SCM_REALLOW_INTS): Removed call to
        SCM_ASYNC_TICK.  (This is a preparation for POSIX threads support,
        and kind of an experiment: Will this cause problems?)

Sun Mar 12 13:26:30 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * Makefile.am: Added *.doc to DISTCLEANFILES.

2000-03-12  Gary Houston  <ghouston@arglist.com>

        * fports.c (scm_fdes_to_port): call fcntl F_GETFL to test that
        the fdes is valid before doing anything else.  check that
        the file descriptor supports the modes required.
        (scm_fport_buffer_add): don't throw an error if fstat doesn't
        work: just use the default buffer size.

        * throw.c: change an outdated comment about scm_internal_catch
        BODY: it doesn't take a jumpbuf arg.

        * init.c (scm_standard_stream_to_port): install a handler in case
        scm_fdes_to_port throws an error.  don't check here whether the
        file descriptor is valid, since scm_fdes_to_port will do that.
        set the revealed count depending on whether the port got the
        standard file descriptor.
        (stream_body_data): new type.
        (stream_body, stream_handler): new procs.

2000-03-12  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * stacks.c, stacks.h, struct.c, tags.h, unif.c (scm_bits_t):
        Renamed from SCMWORD.

        * tags.h (SCM_NCELLP): Removed (SCMWORD).

        * arbiters.c (SCM_ARB_LOCKED): Use SCM_UNPACK_CAR.

        * async.c, boolean.h, debug.c, dynl.c, dynwind.c, eval.c, eval.h,
          feature.h, filesys.h, fluids.h, fports.c, fports.h, gc.c, gc.h,
          hash.c, keywords.h, macros.c, numbers.c, numbers.h, objects.c,
          objects.h, options.c, pairs.h, ports.c, ports.h, print.c,
          procs.h, ramap.c, read.c, smob.c, smob.h, srcprop.h, stacks.c,
          stacks.h, strports.c, struct.c, struct.h, tag.c, tags.h,
          throw.c, unif.c, unif.h, variable.h, vectors.h, weaks.c,
          weaks.h (SCM_PACK, SCM_UNPACK, SCM_UNPACK_CAR): Renamed from
          SCM_ASSCM, SCM_ASWORD, SCM_CARW).

        * numbers.h (SCM_SRS, SCM_INUM): Corrected SCM_ASSCM/ASWORD fixes.

        * alist.c, eval.c, net_db.c, posix.c, print.c, snarf.h, struct.c,
        tags.h: Fixed copyright notices.

        * struct.c, coop-threads.c: SCM_ASSCM/ASWORD fixes.

2000-03-12  Marius Vollmer  <mvo@zagadka.ping.de>

        * init.c (scm_standard_stream_to_port): Check whether the file
        descriptor is valid and substitute "/dev/null" when not.

2000-03-12  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * coop-defs.h (struct timespec): Conditionally defined.

        * coop.c (coop_condition_variable_timed_wait_mutex): Use ETIMEDOUT
        instead of ETIME.

        * readline.c (match_paren): Bugfix: First arg to select is not
        number of descriptors but the number of the highest descriptor +
        1.

        This is a preliminary attempt at a cleanup of the threads support
        code.  It moves things to better places, makes arguments more
        consistent with the POSIX API (which is used in GNOME's glib), and
        adds new functionality.

        * readline.c (scm_init_readline): Added new arg to scm_init_mutex.

        * coop-defs.h (scm_mutex_trylock): New macro: alias for
        coop_mutex_trylock.
        (scm_cond_init): Changed definition to
        coop_new_condition_variable_init.

        * coop.c: #include <errno.h>
        (coop_timeout_qinsert): Moved here from iselect.c
        (coop_new_mutex_init, coop_new_condition_variable_init): New
        functions.  The strange names are temporary.  Use scm_mutex_init
        and scm_cond_init instead.
        (coop_mutex_trylock): New function.  Uses errno.h:EBUSY.  errno.h
        is ANSI C, but should we check for individual error codes in
        configure.in?
        (coop_condition_variable_timed_wait_mutex): New function.
        (coop_key_create, coop_setspecific, coop_getspecific,
        coop_key_delete): New functions.

        * iselect.c (coop_timout_qinsert): Moved to coop.c

2000-03-11  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * pairs.h (SCM_SETAND_CAR, SCM_SETAND_CDR, SCM_SETOR_CAR,
        SCM_SETOR_CDR): Corrected SCM_ASSCM/WORD fixes.

        * tags.h (SCM_VOIDP_TEST): Renamed from VOIDP_TEST.
        Layout cleanups.

        * objects.h (SCM_CLASS_FLAGS, SCM_OBJ_CLASS_FLAGS,
        SCM_SET_CLASS_INSTANCE_SIZE), struct.h (SCM_STRUCT_VTABLE_DATA),
        proc.h (SCM_CLOSCAR): SCM_ASSCM/WORD fixes.

        * eval.c (scm_lookupcar1): Inserted SCM_ASWORD in expressions
        dealing with ilocs.

2000-03-11  Dale P. Smith  <dpsm@en.com>, applied by Greg J. Badros, <gjb@cs.washington.edu>

        * numbers.c (scm_copy_big_dec, scm_copy_smaller, scm_big_ior,
        scm_big_xor, scm_big_and, scm_big_test): Added new lowlevel bignum
        logical functions from SCM.

        (logand, logior, logxor, logtest, logbit?): Extended scheme
        logical functions to use bignums from SCM.

        (lognot): Removed call to `SCM_VALIDATE_INUM' that prevented
        lognot from using bignums.

Thu Mar  9 11:33:25 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * vectors.h (SCM_VELTS_AS_STACKITEMS): Added this macro to help in
        eliminating some warnings.

        * unif.c, strports.c, print.c, options.c: Fix some warnings on
        mis-use of SCM/long

        * gc.c, gc.h: Added scm_return_first_int(), and added comment re:
        what the scm_return_first* functions do.

2000-03-09  Han-Wen Nienhuys  <hanwen@cs.uu.nl>, applied by Greg J. Badros, <gjb@cs.washington.edu>

       * libguile/*.[ch]: make a distinction between SCM as a generic
       name for a Scheme object (now a void*), and SCM as 32 bit word for
       storing tags and immediates (now a long int).  Introduced
       SCM_ASWORD and SCM_ASSCM for conversion. Fixed various dubious
       code in the process: arbiter.c (use macros), unif.c (scm_array_p),

Wed Mar  8 10:15:59 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * numbers.c:  Use SCM_VALIDATE_LONG_COPY, and longs, not ints, in
        various logXXX primitives.  Thanks Eric Moore!

Tue Mar  7 08:05:22 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * run-test, remaining-docs-needed:  Added these scripts.  The
        second one is only temporary until the docstring additions are
        complete.   run-test may best live on, but is here mostly for
        convenience and awareness for now.

        * hash.c: Docs, minor cleanup patch from Dirk Herrman.

Thu Mar  2 16:06:58 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * error.h, error.c: Added `scm_wrong_type_arg_msg' to support
        displaying the expected type.  Use SCM_LISTn in a couple places
        instead of scm_cons-ing by hand.

        * __scm.h: Added SCM_ASSERT_TYPE macro.

        * validate.h, scm_validate.h: Added the former, as a renamed
        version of the latter with SCM_ASSERT_TYPE used in
        SCM_MAKE_VALIDATE (instead of just SCM_ASSERT)

        * Makefile.am: Rename scm_validate.h to validate.h.

        * *.c, *.h: Include validate.h, not scm_validate.h (old name's
        prefix was superfluous).

Thu Mar  2 15:33:12 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * hashtab.c: Improved documentation for lots of functions.  Added
        handwritten docs for `hash-fold'.

Thu Mar  2 15:13:25 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * list.c: Added hand-written docs for `del{q,v,ete}1!'.

Thu Mar  2 12:38:30 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * list.c: Moved append docs to append! Thanks Dirk Hermann.  Also,
        added append docs from R4RS.

        * strings.c: Docstring typo fix, + eliminate unneeded IMP tests.
        Thanks Dirk Hermann!

        * chars.h: Provide SCM_CHARP, SCM_CHAR, SCM_MAKE_CHAR and
        deprecate SCM_ICHRP, SCM_ICHR, SCM_MAKICHR.  Thanks Dirk Hermann!

        * *.h, *.c: Use SCM_CHARP, SCM_CHAR, SCM_MAKE_CHAR throughout.
        Drop use of SCM_P for function prototypes... assume an ANSI C
        compiler.  Thanks Dirk Hermann!

Sat Feb 19 12:20:12 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * ports.c: Made `set-port-column!' and `set-port-line!' each
        return SCM_UNSPECIFIED instead of a (not-scheme-object) integer
        that caused a seg fault.  Also fixed `set-port-column!'s
        docstring.  Thanks Han-Wen Nienhuys for finding the bug!

Sun Feb 13 19:11:42 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * arbiters.c, eq.c, gc.c, guardians.c, list.c, ports.c, print.c,
        regex-posix.c, scmsigs.c, stime.c, strings.c, variable.c, stime.c,
        strings.c, variable.c:  Added lots of documentation, cleaned up
        some existing documentation.  Occasionally changed formal params
        to match docs.  Also folded an #ifdef into the inners of a
        primitive instead of having two copies of the primitive
        (`get-internal-real-time', from stime.c)

Sun Feb 13 18:12:19 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * ports.c: Added docs for primitives missing them.  Written by
        hand.

Sun Feb 13 09:40:36 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * guile-doc-snarf.in: Use ${AWK} -f guile-func-name-check, not
        just execing guile-func-name-check.  Thanks Michael Livshin!

Thu Feb 10 11:43:23 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * guile-snarf.awk.in: Tweak to work with Sun/HP awk, removed some
        dead code.  Patch from Michael Livshin.

        * guile-doc-snarf.in: Tweak to work with Sun/HP sh.  Patch from
        Michael Livshin.

2000-02-09  Gary Houston  <ghouston@arglist.com>

        * init.c (scm_init_standard_ports): when stdout is a tty, make the
        current-output-port unbuffered by default.  this is less confusing
        for interactive use.  it was line-buffered because of a
        performance problem with unbuffered ports, but I think it will be
        OK now.

2000-02-08  Gary Houston  <ghouston@arglist.com>

        * __scm.h: don't define long_long or ulong_long if HAVE_LONG_LONGS
        is not defined.

        * stime.c (scm_localtime, scm_mktime): if neither HAVE_TM_ZONE nor
        HAVE_TZNAME are defined, use an empty string instead of giving two
        spurious compile-time errors.

Tue Feb  8 13:57:46 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * ports.c: Doc patches from Richard Kim.  Pasted from MIT Scheme.
        Thanks Richard!

Mon Feb  7 09:07:31 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * macros.c: Doc patches from Richard Kim.  Pasted from scm.texi.

Sun Feb  6 20:26:21 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * pairs.c: Doc patches from Richard Kim.  Pasted from MIT Scheme
        (which is GNU GPL'd).

2000-01-31  Gary Houston  <ghouston@arglist.com>

        * strings.h: don't use SCM_P.  don't include <string.h>.
        * error.c, gh_data.c, ports.c, script.c, strop.c: include <string.h>.

        * strings.c (scm_string_ref): make the 2nd argument compulsory.
        previously it defaulted to zero for no good reason that I can see.
        use a local variable for SCM_INUM (k).  replace
        SCM_VALIDATE_INUM_DEF with SCM_VALIDATE_INUM_COPY.

        (scm_makfromstr): cosmetic changes.

        (scm_string): Accept only chars in the list, not strings, for
        conformance to R5RS (particularly for list->string, which is
        supposed to be the inverse of string->list.)  remove
        SCM_DEFER_INTS/SCM_ALLOW_INTS, which is unnecessary since
        scm_makstr handles the cell allocation.  when reporting wrong-type
        arg, don't report the position as 1.

        * posix.c (scm_init_posix): intern PIPE_BUF if it's defined.

2000-01-29  Gary Houston  <ghouston@arglist.com>

        * posix.c (scm_pipe): rewrote the docstring.

        * filesys.c (scm_select, retrieve_select_type, get_element,
        fill_select_type, set_element): modified so that Scheme
        "select" tests port buffers for the ability to provide input
        or accept output.  Previously only the underlying file descriptors
        were checked.  Rewrote the docstring.

Thu Jan 27 10:14:25 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * vectors.c, symbols.c, strorder.c: Documentation cut and pasted
        from Gregg Reynolds.  Thanks Gregg!

Thu Jan 27 09:59:38 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * strop.c (scm_i_index): Obfuscated commented-out SCM_DEFINE by
        adding "x" prefix to the line so that guile-func-name-check
        doesn't complain unnecessarily.

Wed Jan 26 17:33:52 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * throw.c: Factor out an #ifdef/#else/#endif choice more finely
        for maintainability.

        * strop.c: Documentation added by Gregg A. Reynolds.   Pasted in
        from qdocs, RnRs.

Wed Jan 26 10:02:11 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * tag.c:  Added doc for `tag', but mark as deprecated since Mikael
        suggests removing tag.c altogether (and using a new `class-of'
        instead).

        * strings.c:  Added documentation from Gregg A. Reynolds.  Edited
        a bit by me to use FOO instead of @var{foo} and to have the
        summary come before preconditions on input.  Also dropped trailing
        (rnrs) note.

        * gsubr.c: Do not use SCM_DEFINE for `gsubr-apply'. Register the
        function with scm_make_subr_opt w/ last arg of 0 so it is not
        visible at the Scheme level. Mikael says that this is the right
        thing because the first arg to the proc is the guts of a compiled
        closure and shouldn't be exposed to the Scheme level.

Tue Jan 25 17:15:47 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * sort.c: typo in comment fixed.

        * keywords.c: Added documentation.

        * guardians.c: Added documentation (could be better).

        * gc.c: Added docs for gc-set-debug-check-freelist.

        * eq.c: Added docs for eq?, eqv? equal? abridged from R4RS.

        * boolean.c: Added docs for `not', `boolean?' (by hand).

Tue Jan 25 13:28:56 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * random.c: Added documentation, from SLIB page:
        http://angela.ctrl-c.liu.se/~calle/scheme/slib_toc.html

Mon Jan 24 17:50:20 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * variable.c, version.c:  Added documentation, written by hand
        since I could not find anything already written that was
        relevant.

2000-01-23  Gary Houston  <ghouston@arglist.com>

        * filesys.c (scm_chown): omit port/fdes support if HAVE_FCHOWN is
        not defined (thanks to Richard Y. Kim).

Thu Jan 20 13:00:38 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * Makefile.in: Removed, this is auto-generated.

Thu Jan 20 11:33:47 2000  Dirk Hermann <dirk@ida.ing.tu-bs.de> --applied 01/20/00 gjb

        * list.c: Put some variable initialization code at the point of
        declaration; Added a comment for list*; Formatting changes.

        * load.c: use SCM_NNULLP to make sure the end of a list is not
        reached yet.

2000-01-18  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * backtrace.c (scm_display_error_message): Bugfix: Don't use
        result of scm_list_p as C boolean.
        (scm_display_error_message, scm_set_print_params_x): Use new
        validation macros. (Thanks to Dirk Herrmann.)

        * net_db.c (scm_resolv_error): Cast result from hstrerror.

        * strports.c (st_end_input): Inserted parenthesis to get operator
        grouping correct.

        * list.h (scm_init_list): Removed SCM_P around prototypes.

        * fports.c, list.c, numbers.c, ports.c, stime.c, symbols.c,
        filesys.c, posix.c: Converted docstrings to ANSI C format and
        escaped " occurring inside string literals.

Tue Jan 18 13:21:08 2000  Mikael Djurfeldt  <mdj@r11n07-s.pdc.kth.se>

        * posix.c (scm_mknod): Escape " occuring inside docstring.

2000-01-18  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * alist.c, chars.c, debug.c, dynl.c, dynwind.c, error.c, eval.c,
           evalext.c, filesys.c, gc.c, hash.c, hashtab.c, ioext.c,
           keywords.c, list.c, load.c, macros.c, net_db.c, numbers.c,
           objprop.c, ports.c, posix.c, print.c, procprop.c, procs.c,
           ramap.c, regex-posix.c, root.c, scmsigs.c, simpos.c, socket.c,
           stacks.c, stime.c, strings.c, strop.c, strports.c, struct.c,
           symbols.c, throw.c, unif.c, vectors.c, version.c, vports.c,
           weaks.c: Converted docstrings to ANSI C format.

        * filesys.c (scm_chmod), simpos.c (scm_system), version
        (scm_version), vports (scm_make_soft_port): Escape " occuring
        inside docstring.

Mon Jan 17 11:41:22 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * scm_validate.h: Added SCM_VALIDATE_ULONG_COPY,
        SCM_VALIDATE_LONG_COPY

        * numbers.c: Use SCM_VALIDATE_ULONG_COPY, instead of
        SCM_VALIDATE_INUM_COPY to let bigger numbers be used.  Rename a
        couple of formal arguments (and fix their uses) to make arguments
        match the documentation.

2000-01-14    <mstachow@alum.mit.edu>

        * Makefile.am: Augment path when running guile-doc-snarf so
        guile-func-name-check is found.

Fri Jan 14 09:34:55 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * scm_validate.h (SCM_NUM2LONG_DEF): Fix this macro to just use
        def, not SCM_MAKINUM(def);  thanks Janis Bzerins!

Wed Jan 12 00:06:53 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * net_db.c (s_scm_inet_makeaddr): Use SCM_NUM2ULONG since that's
        the way guile-1.3.4 worked, but #if 0 out the version using
        SCM_VALIDATE_INUM_COPY for stricter testing.

Tue Jan 11 18:24:18 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * guile-doc-snarf.in: Use new $fullfilename for running
        guile-func-name-check, and put "$fullfilename" and "$filename" in
        quotes at uses to make sure re-splitting on whitespace does not
        occur (so filenames w/ embedded whitespace would work okay, though
        I sure hope we never have to deal with that! :-) ).  Thanks to
        Mikael for pointing out the source_dir != build_dir was broken.

Tue Jan 11 17:42:40 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * scm_validate.h: Added SCM_NUM2LONG_DEF macro.  Make
        SCM_OUT_OF_RANGE use SCM_MAKINUM, not scm_long2num.  Added
        SCM_COERCE_ROSTRING macro.  Added SCM_VALIDATE_NONEMPTYLIST
        macro.  Fix SCM_VALIDATE_STRINGORSUBSTR macro to not use SLOPPY
        variants.

        * ports.c (scm_port_closed_p): Validate that the arg is a PORT,
        then return whether it's an open port (was validating that it was
        an open port -- this was a bug I introduced back in December, but
        my careful reading of diffs caught it).

        * numbers.c: Recombine the two conditional-compilation paths for
        all the log* primitives -- they were split based on #ifndef
        scm_long2num;  factored out a SCM_LOGOP_RETURN macro, and fixed
        some bugs and inconsistencies in the two sets of implementations.
        (scm_lognot) Fixed *atrocious* re-use of a SCM as an integer!

        * ioext.c: Use SCM_ASSERT_RANGE in a couple places, and
        SCM_VALIDATE_INUM_COPY once where it should've been used.

        * fluids.c (scm_internal_with_fluids): Use
        SCM_VALIDATE_LIST_COPYLEN.

        * filesys.c: Use SCM_NUM2LONG instead of SCM_VALIDATE_INUM_COPY;
        this is questionable as it relaxes type safety, but other changes
        were useful and all SCM_NUM2LONG's should probably be
        revisited. Use SCM_OUT_OF_RANGE, SCM_WRONG_TYPE_ARG.

        * evalext.c: line-break change on 1 line.

        * eval.c (nconc2last): Takes a non-empty list as its first
        argument, not just a list.

        * dynl.c: Use new SCM_COERCE_ROSTRING macro.

Tue Jan 11 15:44:23 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * dynl.c, feature.c, filesys.c, fports.c, list.c, load.c,
        net_db.c, sort.c, stacks.c, unif.c: Use SCM_WTA, SCM_MISC_ERROR
        where possible.

        * symbols.c (scm_sysintern0): Fixed the function name in a
        scm_misc_error invocation.

        * print.c (scm_simple_format): Do not need SCM_COERCE_SUBSTR, and
        use scm_return_first to ward off latent GC bug that Mikael caught.

        * async.c: Use SCM_VALIDATE_ASYNC_COPY one place where it wasn't
        used before but should've been.

2000-01-12  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * snarf.h (SCM_PROC1): Replaced SCM (*) (...) with
        SCM_FUNC_CAST_ARBITRARY_ARGS.

Tue Jan 11 13:44:07 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * guile-func-name-check.in: Added this script to statically check
        #define FUNC_NAME, #undef FUNC_NAME in the source.

        * sort.c, posix.c: Fix #undef FUNC_NAME lines to not have trailing
        redundant comment, semicolon; caught by new guile-func-name-check
        script.

        * debug.c: Fix mistaken #define FUNC_NAME for scm_make_iloc.
        Caught by new guile-func-name-check-script.

        * Makefile.am: Added guile-func-name-check to bin_SCRIPTS

        * ramap.c: Fix #if 0'd out code to be syntactically acceptable to
        guile-func-name-check.

        * guile-doc-snarf.in: Run guile-func-name-check on the file before
        doing the snarf.

Tue Jan 11 11:31:10 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * fports.c, ports.c, ports.h, strports.c, vports.c: Make write
        port function take const void*, not void*.

Tue Jan 11 11:18:07 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * scm_validate.h, chars.c, ports.c, print.c, read.c, strings.c,
        strop.c: Use SCM_VALIDATE_ICHR, SCM_VALIDATE_ICHR_COPY instead of
        SCM_VALIDATE_CHAR, SCM_VALIDATE_CHAR_COPY.  Change made for
        consistency with the other macros dealing with immediate
        characters.  (Similar to INT -> INUM change a week or so ago).

Tue Jan 11 10:41:46 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * dynl.c, error.c, eval.c, feature.c, filesys.c, fports.c, list.c, load.c,
        net_db.c, read.c, socket.c: Update error messages to use ~A for
        %s, ~S for %S to work with new `simple-format' format and be
        standardized better.

        * print.h, print.c (scm_simple_format): Added `simple-format'
        primitive.  It's the old scm_display_error, with ARGS now a rest
        parameter, and the destination first instead of last (and a couple
        new capabilities inspired by `format' -- #t as destination means
        current-output-port, #f means return the formatted text as a
        string.

        * gh.h, gh_data.c, ports.h, ports.c: Added some missing const specifications.

        * backtrace.c (scm_display_error_message): Rewrote to use
        scm_simple_format() procedure.

        * __scm.h: Added commented-out #define of GUILE_DEBUG_FREELIST

2000-01-09  Marius Vollmer  <mvo@zagadka.ping.de>

        Finally applied the libltdl patch from Thomas Tanner, with slight
        modifications.

        * DYNAMIC-LINKING: Removed because it is obsolete.
        * dynl.c: Use ANSI prototypes.
        (sysdep_dynl_link): Use lt_dlopenext instead of lt_dlopen.
        * scmconfig.h.in: Do not change, as it is automatically generated.

    1999-07-25  Thomas Tanner  <tanner@ffii.org>

            * dynl-dl.c, dynl-dld.c, dynl-shl.c, dynl-vms.c: deleted
            (obsolete)
            * Makefile.am: likewise, add INCLTDL (libltdl headers) to
            INCLUDES, set dlpreopened files in LDFLAGS, link libguile
            against libltdl
            * dynl.c: use libltdl if DYNAMIC_LINKING is enabled,
            * guile.c: register preloaded modules
            * scmconfig.h.in: remove obsolete symbols

2000-01-09  Gary Houston  <ghouston@arglist.com>

        * These changes should make it unnecessary to call tzset from
        Scheme after modifying the TZ environment variable, even if the
        system date facilities cache the value.
        * stime.c (setzone, scm_localtime): added comments.
        (tzset): don't define a noop tzset macro if HAVE_TZSET not defined.
        (setzone): don't call tzset.
        (restorezone): call tzset only if HAVE_TZSET is defined.
        (scm_tzset): don't define if HAVE_TZSET not defined.  Change the
        doc string to indicate that this procedure isn't likely to do
        anything useful.
        (scm_localtime, scm_strftime, scm_mktime): call tzset if
        LOCALTIME_CACHE is defined.

2000-01-09  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * posix.c (scm_sync): Return SCM_UNSPECIFIED.

2000-01-09  Gary Houston  <ghouston@arglist.com>

        * eval.c: define scm_unbound_variable_key ('unbound-variable).
        scm_lookupcar1: throw an error with key 'unbound-variable instead
        of 'misc-error when an unbound variable is encountered.

        * filesys.c (scm_mkdir, scm_rmdir, scm_getcwd, scm_select,
        scm_symlink, scm_readlink, scm_lstat),
        posix.c (scm_setpgid, scm_setsid, scm_ctermid, scm_tcgetpgrp,
        scm_tcsetpgrp, scm_uname, scm_setlocale, scm_mknod, scm_nice,
        scm_sync),
        simpos.c (scm_system),
        stime.c (scm_times, scm_strptime):
        move the HAVE_XXX feature tests out of the procedure bodies.
        don't use SCM_SYSMISSING.
        scm_validate.h (SCM_SYSMISSING): removed.
        error.h, error.c (scm_sysmissing): comment that this is deprecated.
        see ChangeLog entry for 1999-12-28.

Sat Jan  8 19:52:04 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * scm_validate.h (SCM_VALIDATE_BOOL_COPY): Fix typo.

Sat Jan  8 17:06:46 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * backtrace.c: Fix spelling typo in a comment.

        * snarf.h: Use new SCM_DOCS macro to encapsulate the non SCM_INIT
        text.  Reformatted some of the expansions.

Fri Jan  7 15:50:46 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * scm_validate.h (SCM_OUT_OF_RANGE): Use scm_out_of_range_pos to
        report the position of the argument.

        * error.h, error.c (scm_out_of_range_pos):  Added this function to
        take extra "pos" argument, the position number of the errant
        argument.

        * debug.c: Use SCM_OUT_OF_RANGE instead of scm_out_of_range.

        * snarf.h: Use SCM_HERE and SCM_INIT as names, not SCM_NOTSNARF
        and SCM_SNARFING.  Also put the %%% in the SCM_INIT since Mikael
        prefers that and I'm reasonably indifferent.

Fri Jan  7 15:03:32 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * snarf.h: Factor out differences between C++ and non-C++ into
        SCM_FUNC_CAST_ARBITRARY_ARGS macro.  Modify all the snarf macro
        definitions to use SCM_NOTSNARF and SCM_SNARFING macros (like
        Mikael's macros, below, but changed names and SCM_SNARFING no
        longer expands to include %%% -- that must appear in the argument
        so that the token appears at the call-site as a reminder).

2000-01-07  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>

        * snarf.h (SCM_INSITU, SCM_INIT): New snarf macros for use in user
        snarf macro definitions.

2000-01-06  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * chars.c (scm_integer_to_char): Use Greg's nice
        SCM_VALIDATE_INUM_RANGE macro for argument checking for closer
        adherence to R5RS.

Thu Jan  6 11:48:49 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * *.c, snarf.h: Replace GUILE_PROC1 with SCM_DEFINE1 throughout.

Thu Jan  6 11:22:53 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * Makefile.am (ETAGS_ARGS): Switch to SCM_DEFINE, SCM_DEFINE1
        instead of GUILE_PROC.

Thu Jan  6 11:21:49 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * alist.c: Do not report mismatch errors on some uses of `tmp' (do
        this by using SCM_ARG2 instead of `2' in the SCM_VALIDATE_CONS
        macro call.

Thu Jan  6 09:54:33 2000  Dirk Herrmann <dirk@ida.ing.tu-bs.de> --gjb applied

        * scm_validate.h: Remove some redundant NIMP tests.

        * alist.c: minimize scope of the tmp variables, and initialize
        them when declared. The strange SCM_NIMP tests are replaced by
        SCM_CONSP tests that more closely reflect the intended semantics.
        However, we don't get a performance penalty here, because the
        SCM_CONSP test was performed by the ALISTCELL test anyway.  * The
        extremely ugly use of ASRTGO macros was removed: The calls to
        ASRTGO were not encapsulated by "#ifndef SCM_RECKLESS", but got a
        label parameter that only exists when SCM_RECKLESS is not defined.
        This works, because ASRTGO itself is defined in a way that it only
        makes use of the label parameter if SCM_RECKLESS is not defined
        (shudder!).  Does guile make at all use of the possibility to
        define SCM_RECKLESS?  * Codesize is likely to be reduced, since
        instead of two calls to SCM_ASSERT performed by the ALISTCELL test
        we now only get one test.

        * list.c: Use SCM_NNULLP, not SCM_NIMP as appropriate.  Also use
        SCM_NULLP instead of SCM_IMP.  Drop use of "register" keyword on
        some variables in `list?'.  Fix `reverse' and `reverse!'
        primitives to handle improper lists better.

Wed Jan  5 11:24:53 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * *.[ch]: Whitespace changes -- added space after SCM_VALIDATE_*
        macros and SCM_DEFINE macros to match GNU coding standards.

Wed Jan  5 11:04:24 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * *.[ch]: Replace GUILE_PROC w/ SCM_DEFINE.

Wed Jan  5 10:59:06 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * *.[ch]:  Replace SCM_VALIDATE_INT w/ SCM_VALIDATE_INUM for
        better consistency with the names of other SCM_VALIDATE_ macros
        and better conformance to guile naming policy.

Wed Jan  5 10:50:39 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * ports.c (s_scm_close_all_ports_except): Use SCM_ARG1 in a
        SCM_VALIDATE instead of 1 to avoid a check on the argument (since
        it's not the actual name of the formal).

        * guile-snarf.awk.in: Do argument/number mismatch checking and
        print warnings in an Emacs compile-mode parseable format.

        * struct.c: Use SCM_ASSERT_RANGE instead of SCM_ASSERT w/
        SCM_OUTOFRANGE as 3rd argument.

        * random.c: Fix argument/number mismatch (that I introduced :-( ).

        * __scm.h: Do not #define SCM_ARG* when snarfing;
        lets us distinguish between 1 and SCM_ARG1 when snarfing as only
        the former (using the number) requires the argument to match the
        formal in the current argument snarfing check.

        * snarf.h: Give new definition of SCM_ASSERT when in
        snarfing mode to output a lexically-identifiable sequence that the
        guile-snarf.awk script uses to verify argument/position matching.

        * ramap.c: Remove extraneous #undef FUNC_NAME.

Wed Jan  5 08:36:38 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * guile-doc-snarf.awk.in: Removed -- guile-snarf.awk.in is the
        current version of the same functionality; it writes the .x output
        to stdout instead of directly into the file.

Wed Jan  5 08:15:04 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * unif.c, symbols.c, strings.c, stacks.c, random.c, print.c,
        posix.c:  Eliminated a bunch of SCM_NIMP(..)s that are now
        redundant with the safer macros.  Patch from Dirk Hermann applied
        by hand. Thanks Dirk!

        * scm_validate.h: Added SCM_VALIDATE_VECTOR_OR_DVECTOR for some
        uses in random.c.

        * ramap.c: whitespace change.

Tue Jan  4 14:21:35 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * options.c, objects.c, keywords.c, gc.c: Some redundant SCM_NIMP
        removals from Dirk Hermann.

        * alist.c: Rename formals to match the parameter names in the
        documentation, updates to documentation.  Thanks Dirk Hermann!

2000-01-04  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

        * eval.c (SCM_CEVAL): Reverse order of
        scm_stack_checking_enabled_p and SCM_STACK_OVERFLOW_P
        (Thanks to Brad Knotwell.)

Mon Jan  3 08:30:02 2000  Greg Harvey  <Greg.Harvey@thezone.net> (applied --01/03/00 gjb)

        * gc.c (scm_debug_newcell): Added SCM_SETCAR of the newly
        allocated cell.

        * pairs.h: Added a comment about the need for the SCM_SETCAR in
        SCM_NEWCELL macro.

Mon Jan  3 08:25:19 2000  Greg J. Badros  <gjb@cs.washington.edu>

        * dynl-vms.c, debug.c, coop-threads.c, backtrace.c, eval.c: More
        SCM_NIMP tests that were redundant are now eliminated.  Patches
        from Dirk Hermann applied by hand.

The ChangeLog continues in the file: "ChangeLog-1996-1999"