Small adjustment to remove compiler warning message.

[bpt/guile.git] / libguile / ChangeLog

Thu Oct  2 19:33:38 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* print.c (scm_iprin1): Don't print arguments of macro
 	transformers.  (They are always: exp env.); Bugfix: Unmemoize
 	transformer source with correct environment.

1997-10-02  Marius Vollmer  <mvo@zagadka.ping.de>

	Streamlining of call-with-dynamic-root:
	
	* root.c (cwdr_inner_body, cwdr_body): Remove "inner" from name,
	there is now only one catch.
	(cwdr_outer_body): Removed.
	(cwdr_handler): New function.
	(scm_internal_cwdr): New function to perform the function of cwdr
	but take args that are more useful to C code.  Also, the handler
	is now invoked *outside* of the new dynamic root, like the docs
	say.  We no longer have to catch absolutely all errors, the caller
	is responsible for using a handler that does not throw, if he
	wants that.
	(cwdr): Reimplemented in terms of scm_internal_cwdr.
	* root.h (scm_internal_cwdr): New prototype.

	Even more but risky streamlining:
	
	* root.c (USE_STACKJMPBUF): New define to activate a stack-based
	allocation of the jumpbuf of a root continuation.  The changes
	below are controlled by it.  They are now deactivated.
	(scm_internal_cwdr): Allocate the scm_contregs on the stack.  Set
	the JMPBUF of the scm_rootcont to NULL before returning.

	* gc.c (scm_gc_sweep): Free the SCM_VELTS of a scm_tc7_contin only
	when they are non-NULL.
	(scm_gc_mark): Likewise, mark only when non-NULL.

	Make dynamic linking work on Dec Unix. (Thanks to Clark McGrew)
	* dynl.c: Include "dynl-dl.c" also when HAVE_DLOPEN is defined.

	* gc.c (scm_done_malloc): New function.
        gc.h (scm_done_malloc): New prototype.
	
	* print.h (SCM_PRINT_STATE_P, SCM_COERCE_OPORT): New macros.
	(struct scm_print_state) [revealed]: New field.
	(scm_print_state_vtable): Make visible to the outside world for
	type checking purposes.
	(scm_valid_oport_value_p): New prototype.
	
	* print.c (scm_valid_oport_value_p): New function to check whether
	a certain value is acceptable as a port argument.
	(scm_print_state_vtable): New variable.
	(scm_free_print_state): Set `revealed' field to false.
	(scm_iprin1): Call user supplied closure printer with
	scm_printer_apply.  Print in the traditional way when there isn't
	one or when it returns #f.
	(scm_prin1, scm_display, scm_write, scm_newline, scm_write_char):
	Accept a port/print-state pair in addition to just a port.
	(scm_prin1): Don't return the print_state to the pool when it has
	been `revealed'.
	(scm_printer_apply): Set `revealed' field of print_state to true.
	(scm_init_print): Set scm_print_state_vtable.
	(print_state_fluid, print_state_fluid_num): Removed.
	
	* throw.h (scm_handle_by_proc_catching_all): New prototype
	throw.c (scm_handle_by_proc_catching_all): New function
	
Mon Sep 29 23:54:09 1997  Jim Blandy  <jimb@totoro.red-bean.com>

	* Makefile.in: Regenerated with automake 1.2c.

Sun Sep 28 21:35:42 1997  Radey Shouman  <shouman@zianet.com>

	* ramap.c (scm_array_index_map_x): Fixed for zero-rank arguments,
	was looping endlessly.

Sun Sep 28 00:04:29 1997  Jim Blandy  <jimb@totoro.red-bean.com>

	* strports.c (scm_eval_string): Don't close the port.

	* stime.c (bdtime2c): Use SCM_LENGTH, not scm_vector_length; the
	former returns a nice normal integer.  (Thanks to Daniel
	Risacher.)

Sat Sep 27 20:19:34 1997  Jim Blandy  <jimb@totoro.red-bean.com>

	* Makefile.am (libpath.h): Include the value of the THREAD_LIBS
	makefile variable as a build parameter called LIBS.  The
	build-guile program will use this, for the time being.
	* Makefile.in: Regenerated.

	Thanks to Shiro Kawai:
	* gc.c (scm_gc_mark): Pass NULL to scm_wta as the subroutine name.
	* ports.h (scm_ptobfuns): The fgets method returns a char *, not
	an SCM.

	* Makefile.in: Regenerated with automake 1.2a.

	* script.c (scm_compile_shell_switches): If we hit the -c or --
	arguments, don't set the car of (command-line) to scm_usage_name,
	the prettified name of the guile executable; give it the full
	path, the way shells usually handle $0. 

Wed Sep 24 22:09:52 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* ramap.c (scm_array_map): Renamed to scm_array_map_x.  Removed
 	Scheme-level name `array-map' and renamed `serial-array-map' to
 	`serial-array-map!'.

	* backtrace.c: Introduced exception handlers which now enclose
	`display-error' and `display-backtrace' so that error reporting
	won't get into infinite loops if an error occurs during displaying
	of the error.  This can very easily happen with user supplied
	print call-back routines.

Tue Sep 23 12:43:17 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* ramap.c: Added alias `array-map!' for `array-map'.  (Probably,
	the names `serial-array-map' and `array-map' should be removed.)

Mon Sep 22 01:21:54 1997  Mikael Djurfeldt  <mdj@kenneth>

	* init.c (scm_boot_guile_1): Added scm_init_objects ().
	Added #include "objects.h"

	* eval.c (scm_makprom): Added SCM_DEFER_INTS and SCM_ALLOW_INTS.
	Add #include "feature.h".

	* Makefile.am (libguile_la_SOURCES): Added objects.c.
	(modinclude_HEADERS): Added objects.h.

	* ports.h (SCM_EOF_OBJECT_P): New macro predicate.
	This test is needed at many places in the code and should be
	abstracted.  (Motivated by the need of this test in libguiletk.)

	* ports.c (scm_eof_object_p), vports.c (sfgetc), strports.c
	(scm_eval_string), load.c (scm_primitive_load,
 	scm_read_and_eval_x), gh_eval.c (gh_eval_str):
	Use SCM_EOF_OBJECT_P.

	* eval.c (scm_init_eval): Add feature `delay'.

Tue Sep 16 02:12:02 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* scmhob.h: Removed.

Mon Sep 15 20:42:03 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* list.h (SCM_LISTn): New macros.  Make list creation in C code
 	prettier.  The idea comes from STk.

	* sequences.h, sequences.c, append.h, append.c: Removed.  These
 	files implemented non-R4RS operations which would encourage
 	non-portable programming style and less easy-to-read code.

	* Makefile.am (sequences.h, sequences.c, append.h, append.c):
 	Removed.
	
	* libguile.h, eval.c, init.c, stime.c, unif.c: Removed #include
 	sequences.h, #include append.h.

	* init.c (scm_boot_guile_1): Removed calls to scm_init_append and
	scm_init_sequences.

	* gh.h, gh_list.c: Renamed gh_list_length --> gh_length.

	* list.h, list.c: Renamed scm_list_length --> scm_length, scm

	* stime.c (bdtime2c): Changed scm_obj_length --> scm_vector_length.

Sat Sep 13 00:21:41 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* eval.c: Added #include "objects.h"

	* tags.h (scm_tc16_object, scm_tc16_entity): Smobtags for objects
 	and entities.

	* smob.c (scm_smob_prehistory): Create two objectsmobs with
 	adjacent smob numbers.

Thu Sep 11 00:59:17 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* procprop.h: Added declaration of scm_i_inner_name.

	* gsubr.c: New global symbol scm_i_inner_name.

	* debug.c (scm_procedure_name): Try procedure property
	`inner-name' if `name' fails.

	* print.c (scm_iprin1): Use scm_macro_name.

	* eval.c (scm_m_define): Give names to macros as well; Only the
 	first top-level definition gives a procedure/macro a name.
  	Otherwise confusing names can turn up in backtraces.
	(SCM_CEVAL): SCM_IM_DEFINE: Set `inner-name' property instead of
 	`name'; Give names to macros as well.

	* procs.c (scm_closure_p), print.c (scm_iprin1), eval.c
 	(scm_macro_transformer): Use SCM_CLOSUREP instead of
 	scm_closure_p.

Wed Sep 10 20:52:18 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

*	* eval.c (macro?, macro-type, macro-name, macro-transfomer): New
 	procedures;
	(prinmacro): Removed.  The code has been moved/merged into print.c
 	in order to decrease code redundancy.  We want macros to print in
 	a way equivalent to procedures, and it would be silly to duplicate
 	the required code.  (We don't want to maintain two places.)
	(macrosmob): Print field is now a NULL pointer.
	
	* eval.h (scm_macro_p, scm_macro_type, scm_macro_name,
 	scm_macro_transformer): New prototypes.
	(scm_tc16_macro): Declared.

*	* print.c (scm_iprin1): Added code for printing of macros.  Macros
	are now printed in a way equivalent to procedures.

Sat Sep  6 12:20:42 1997  Mikael Djurfeldt  <mdj@kenneth>

	* procs.h (scm_closure_p): Added declaration.

Fri Sep  5 13:36:14 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* gc.c (scm_gc_mark): Fixed "rogue pointer in heap" message:
	Shouldn't pass "heap" as the subr name.

Tue Sep  2 18:14:30 1997  Jim Blandy  <jimb@totoro.red-bean.com>

	* gh_predicates.c (gh_boolean_p, gh_symbol_p, gh_char_p,
 	gh_vector_p, gh_pair_p, gh_number_p, gh_string_p, gh_procedure_p,
 	gh_list_p, gh_inexact_p, gh_exact_p, gh_eq_p, gh_eqv_p,
 	gh_equal_p): Use SCM_NFALSEP, instead of testing against
	SCM_BOOL_T.  Any non-false value is true.

Tue Sep  2 00:27:07 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* symbols.h (scm_builtin_bindings, scm_builtin_weak_bindings,
 	scm_gensym): Added prototypes.

	* symbols.c (scm_gensym): New function.  This will speed up
 	certain types of applications (such as macro systems) which
 	generate lots of symbols.

Mon Sep  1 22:30:33 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* numbers.c (logand, logior, logxor): Handle 0 or 1 arguments.

Sat Aug 30 18:56:19 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* unif.c (scm_shap2ra): tighten the checking of the array dimension
	specifier, since (2) or (2 . 3) would cause SEGV.
	(scm_transpose_array): more argument checking fixes.

Thu Aug 28 23:48:53 1997  Jim Blandy  <jimb@totoro.red-bean.com>

	* Makefile.in: Regenerated.

Wed Aug 27 17:44:44 1997  Jim Blandy  <jimb@totoro.red-bean.com>

	* Makefile.in: Regenerated, so it uses "tar", not "gtar".

Mon Aug 25 13:47:25 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* error.c, error.h (scm_error_callback): Removed (see NEWS).

Sun Aug 24 01:25:35 1997  Mikael Djurfeldt  <mdj@kenneth>

	* regex-posix.c: If <regex.h> can't be found, try <rxposix.h> or
	<rx/rxposix.h>.  (This is in order to accomodate for the GNU Rx
	library.)

	* ramap.c (scm_ra_matchp, scm_array_fill_int, racp, ramap_1,
 	ramap_2o, scm_array_index_map_x, raeql_1, scm_array_equal_p),
 	unif.c (scm_vector_set_length_x, scm_uniform_vector_length,
 	scm_array_p, scm_array_rank, scm_array_dimensions,
 	scm_enclose_array, scm_array_in_bounds_p, scm_uniform_vector_ref,
	scm_cvref, scm_array_set_x, scm_array_contents, scm_array_to_list,
 	scm_array_prototype): Added case scm_tc7_wvect.

Sat Aug 23 18:45:44 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* errno.h: prototype for scm_strerror.
	* error.c (scm_strerror): new procedure.

Mon Aug 18 14:58:22 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* list.c (scm_list_append_x): Allow non-pair as last argument.
	This is consistent with the R4RS append and is probably the
	correct behaviour as specified by R2RS.  (Thanks to Radey Shouman)

Sat Aug 16 18:42:15 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* stime.h: prototype for scm_times.
	* stime.c (scm_times): new procedure.
	* ioext.c (scm_fseek): if the first argument is a file descriptor
	call lseek.
	(scm_ftell): if the first argument is a file descriptor call lseek
	(sic).
	* filesys.h: prototypes for scm_open_fdes, scm_fsync.
	* filesys.c (scm_chmod): if the first argument is a file descriptor,
	call fchmod.
	(scm_chown): if the first argument is a port or file descriptor,
	call fchown.
	(scm_truncate_file): new procedure.
	Add DEFER/ALLOW INTS to a few other procedures.
	(scm_fsync): new procedure.
	(scm_open_fdes): new procedure.
	(scm_open): use scm_open_fdes.  If mode isn't specified, 666 will
	now be used.
	(scm_fcntl): the first argument can now be a file descriptor.  The
	third argument is now optional.	

	* posix.c (scm_execl, scm_execlp): make the filename argument
	compulsory, since omitting it causes SEGV.
	(scm_sync): return unspecified instead of #f.
	(scm_execle): new procedure.
	(environ_list_to_c): new procedure.
	(scm_environ): use environ_list_to_c.  disable interrupts.
	(scm_convert_exec_args): take pos and subr arguments and
	improve error checking.

1997-08-14  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* stacks.c (scm_make_stack), coop-threads.c, mit-pthreads.c
	(scm_call_with_new_thread): Bugfix: SCM_WNA should go as third
	argument to SCM_ASSERT.  Furthermore, the name of the function
	should be passed as first argument when signalling
	SCM_WNA. (Thanks to Thomas Morgan)

	* gsubr.c (scm_gsubr_apply): From Radey Shouman
	<shouman@zianet.com>: "The switch in scm_gsubr_apply that
	dispatches on the number of actual args has a default case
	reporting an internal error.  This is a vestige from a version
	that mallocated a SCM vector to hold the arguments.  In the
	current version this check is too late: if it ever happens we will
	have already overstepped the bounds of the array.

	Also, the patch [...] adds a check for too many actual arguments."

	mdj: Removed check for "internal programming error".

Wed Aug 13 15:38:44 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* gh_io.c (gh_write): New function.

	* gh_eval.c (catch_with_saved_stack): Removed.  Replaced by:
	throw.c (scm_internal_stack_catch): New sibling to the other catch
	functions.  Code moved from gh_eval.c.
	throw.h: Added header.
	gh_eval.c (gh_eval_str_with_stack_saving_handler): Renamed call to
	scm_internal_stack_catch.

Tue Jul 29 01:03:08 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* ioext.h: fix up prototypes.
	* ioext.c (scm_dup_to_fdes): renamed from scm_primitive_dup2.
	Scheme name is now dup->fdes.
	(scm_dup_to_fdes): make the second argument optional and
	fold in the functionality of scm_primitive_dup.
	(scm_primitive_dup): deleted.

Mon Jul 28 05:24:42 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* fports.h (SCM_P): prototypes for scm_setvbuf, scm_setfileno.
	* fports.c (scm_setbuf0): don't disable the setbuf if MSDOS or
	ultrix are defined.  Use setvbuf instead of setbuf.
	(scm_setvbuf): new procedure.
	(scm_init_fports): intern _IOFBF, _IOLBF, _IONBF.
	(scm_setfileno): moved from ioext.c.
	(scm_fgets): cast SCM_STREAM to (FILE *), remove unused lp variable.
	(top of file): Delete 25 lines of probably obsolete CPP hair for MSDOS.

Sun Jul 27 10:54:01 1997  Marius Vollmer  <mvo@zagadka.ping.de>

	* fluids.c (scm_fluid_p): New function.
	* fluids.h (scm_fluid_p): New prototype.

Sat Jul 26 21:33:37 1997  Marius Vollmer  <mvo@zagadka.ping.de>

	* print.c (scm_iprin1): Enter printed structures into the print
 	state as nested data while they are printed.
	(print_state_fluid, print_state_fluid_num): New variables.
	(scm_init_print): Initialize them.
	(scm_iprin): If print_state_fluid carries a print_state, use that
 	instead of creating a new one.
	(scm_printer_apply, apply_stub, struct apply_data): New
 	definitions to help with calling printer functions written in
 	Scheme.
  	* print.h (scm_printer_apply): New prototype.

	* struct.c (scm_print_struct): Use scm_printer_apply to call the
 	user defined struct printer.
	
	* dynwind.c (scm_dowinds): Handle fluids on the wind list.
	* fluids.h (scm_internal_with_fluids, scm_with_fluids,
 	scm_swap_fluids, scm_swap_fluids_reverse): New prototypes.
	* fluids.c (scm_internal_with_fluids, scm_with_fluids,
 	scm_swap_fluids, scm_swap_fluids_reverse): New functions.

Fri Jul 25 12:05:46 1997  Marius Vollmer  <mvo@zagadka.ping.de>

	* fluids.c (scm_fluid_ref, scm_fluid_set_x): Fixed use of
 	SCM_ASSERT: arg comes before pos.

Fri Jul 25 17:00:38 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* eval.c (scm_apply): Handle the case when a tc7_sybr_2 is applied
	to a list of length zero correctly.

Wed Jul 23 16:17:46 1997  Tim Pierce  <twpierce@bio-5.bsd.uchicago.edu>

	Supply an `fgets' method for port objects to do fast line i/o.
	* ioext.c (scm_read_line): New function.
	* genio.c (scm_gen_read_line): New function.
	* fports.c (scm_fgets): New function.
	(scm_fptob, scm_pipob): Add scm_fgets method.
	* ports.c (fgets_void_port, scm_generic_fgets): New functions.
	(void_port_ptob): Add void fgets method.
	(scm_newptob): Initialize fgets method from ptob struct.
	* ports.h (scm_ptobfuns): Add fgets method.
	* vports.c (scm_sfptob): Supply generic fgets method.
	* strports.c (scm_stptob): Supply generic fgets method.

Mon Jul 21 04:03:42 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* ioext.h: removed scm_duplicate_port prototype.

	* ioext.c (scm_primitive_dup2): return the new file descriptor
	instead of SCM_UNSPECIFIED, since similarity to scm_primitive_dup
	is convenient.
	(scm_fdopen): bug fix: don't try to make port unbuffered until its
	stream has been set.
	(scm_duplicate_port): deleted, there's now an implementation in
	boot-9.scm.
	(scm_primitive_dup2): do nothing if newfd == oldfd.

Sun Jul 20 03:55:49 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* filesys.c (scm_close): oops, don't call SCM_INUM twice on the
	argument.

	* ioext.h: new prototypes.
	* ioext.c (scm_primitive_dup, scm_primitive_dup2): new procedures.

	* fluids.c (next_fluid_num): don't do
	SCM_THREAD_CRITICAL_SECTION_START/END unless USE_THREADS is defined.

	* ports.h: prototypes too.
	* ports.c (scm_mode_bits, scm_port_mode): moved from fports.c.

	* fports.h: prototype too.
	* fports.c (scm_evict_ports): moved from ioext.c.

Sat Jul 19 04:56:52 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* ports.c (scm_close_port): return a boolean instead of unspecified.
	throw an error if an error other than EBADF occurs.

	* filesys.h: scm_close prototype.
	* filesys.c (scm_close): new procedure, can close file descriptors
	and ports (scsh compatible).

	* ports.c (scm_flush_all_ports): SCM_PROC incorrectly allowed an
	optional argument.

Fri Jul 18 11:19:53 1997  Marius Vollmer  <mvo@zagadka.ping.de>

	* fluids.c, fluid.h: New files.
	* Makefile.am (libguile_la_SOURCES): Added "fluids.c".
  	(modinclude_HEADERS): Added "fluids.h"
	
	* init.c: Include "fluids.h".  (scm_boot_guile_1): Added call to
 	scm_init_fluids to initialize the fluid machine.
  	(scm_start_stack): Initialize the fluids of the first root with
 	scm_make_initial_fluids.

	* root.h: Added "fluids" member to scm_root_state.
	* root.c: Include "fluids.h".  (scm_mark_root): Mark "fluids".
	(scm_make_root): Call scm_copy_fluids to make fluid bindings
 	unique for the new root when it has a parent.
	
	* smob.h: Include "libguile/print.h" to make scm_print_state
 	visible.

	* dynl.c (free_dynl_obj): New function to free the dynamic object
 	data. (dynl_smob): Use it.
	* dynl.c (scm_dynamic_link): Moved allocating of the memory for
 	the dynamic object data below the linking of the object to avoid
 	memory leak when the linking code throws an error.  Now the code
 	leaks a whole dynamically linked library when must_malloc throws,
 	but that should be much less likely.

Fri Jul 11 00:19:47 1997  Jim Blandy  <jimb@floss.red-bean.com>

	Changes to compile under gnu-win32, from Marcus Daniels:
	* stime.c (tzset): If tzset isn't provided, make it a NOP.
	(scm_localtime): Change SCM_EOF to SCM_EOL.
	(scm_mktime): Likewise.
	* socket.c: Don't include sys/un.h unless autoconf tells
	us Unix domain sockets are available.
	(scm_fill_sockaddr): Ignore Unix domain code.
	(scm_addr_vector): Likewise.
	(scm_init_addr_buffer): Likewise.
	(scm_socketpair): Don't include unless socketpair was
	found during autoconf.
	* simpos.c (SYSTNAME): Treat cygwin like Unix.
	* scmsigs.c (scm_pause): Don't include unless pause was found
	during autoconf.
	* posix.c (scm_getgroups): Don't include unless support function
	was found during autoconf (in this case, getgroups).
	(scm_setpwent): For setpwent.
	(scm_setegid): For setegid.
	* net_db.c (scm_inet_netof): Don't include unless support
	function was found during autoconf (in this case, inet_netof).
	(scm_lnaof): For inet_lnaof.
	(scm_inet_makeaddr): For inet_makeaddr.
	(scm_getnet): For getnetent, getnetbyname, getnetbyaddr.
	(scm_getproto): For getprotoent.
	(scm_getserv): For getservent.
	(scm_sethost): For sethostent, endhostent.
	(scm_setnet): For setnetent, endnetent.
	(scm_setproto): For setprotoent, endprotoent.
	(scm_setserv): For setservent, endservent.
	* scmconfig.h.in: Regenerated.

Thu Jul 10 00:22:24 1997  Jim Blandy  <jimb@floss.red-bean.com>

	* stime.c (scm_localtime, scm_mktime): Pass SCM_EOL to
	scm_misc_error, not SCM_EOF.

	* error.c (scm_wta): Pass SCM_EOL to scm_misc_error as the list of
	arguments for formatting the error message, not SCM_BOOL_F.  I
	think this is left over from the (eq? '() #f) days.

	* read.c (recsexpr): Give this a dummy definition if
	DEBUG_EXTENSIONS isn't #defined.

Fri Jul  4 23:42:17 1997  Marius Vollmer  <mvo@zagadka.ping.de>

	* coop-threads.c (scm_wait_condition_variable): Lock mutex again
 	after waiting.

Thu Jul  3 16:31:24 1997  Marius Vollmer  <mvo@zagadka.ping.de>

	* root.c (cwdr_outer_body): Bugfix: Pass `c' instead of `&c' to
 	scm_internal_catch.

Sat Jun 28 16:14:09 1997  Tim Pierce  <twp@twp.tezcat.com>

	* Makefile.am (libguile_la_LIBADD): Remove @ALLOCA@, since
	alloca.lo will be included in @LIBLOBJS@.  Something better than
	this should be possible.
	* Makefile.in: Regenerated.

Sat Jun 28 03:40:15 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* simpos.h: prototype for scm_primitive_exit.
	* simpos.c (scm_primitive_exit): new procedure, terminates the 
	process	without unwinding the stack.

Sat Jun 28 03:45:25 1997  Tim Pierce  <twp@twp.tezcat.com>

	* regex-posix.c (scm_make_regexp): Make `flags' a variable-length
	argument and logior its components together, so the user doesn't
	have to do this explicitly.  Also, if regexp/basic is supplied, then
	turn off REG_EXTENDED.
	(scm_init_regex_posix): New regexp/basic symbol.
	(REG_BASIC): #define this if it is not already present.

Fri Jun 27 20:36:35 1997  Tim Pierce  <twpierce@bio-5.bsd.uchicago.edu>

	* Makefile.am (libguile_la_LIBADD): Include @ALLOCA@.
	(MOSTLYCLEANFILES): New target, changed from CLEANFILES.
	(CLEANFILES): New target, clean versiondat.h, libpath.h.
	(DISTCLEANFILES): New target, clean *.x.
	* Makefile.in: Regenerated.

Tue Jun 24 00:29:07 1997  Jim Blandy  <jimb@floss.red-bean.com>

	* script.c (scm_compile_shell_switches): Add 1997 to copyright
	years in usage message.

	* Makefile.am (libguile_la_LDFLAGS): Bump library version.
	* Makefile.in: Regenerated.

	* regex-posix.c (scm_init_regex_posix): Delete the regexp/nosub
	flag; I don't think we support it.
	(scm_make_regexp): Make sure the user doesn't pass the
	regexp/nosub flag.

	* regex-posix.c (scm_make_regexp, scm_regexp_exec): Add optional
	FLAGS arguments.
	(scm_init_regex_posix): Define constants for the REG_mumble flags;
	name them according to the SCSH convention: regexp/mumble.

	* regex-posix.h (scm_make_regexp, scm_regexp_exec): Update prototypes.

Mon Jun 23 18:44:49 1997  Jim Blandy  <jimb@floss.red-bean.com>

	* Makefile.am (libpath.h): Include the values of all the standard
	Makefile directory variables.  Print a message, but don't print
	all the commands.
	(versiondat.h): Print a message, but don't print all the commands.
	* load.c: #include "alist.h".
	(init_build_info): New function.
	(scm_init_load): Call it.
	* Makefile.in: Regenerated.

Sun Jun 22 19:12:58 1997  Jim Blandy  <jimb@floss.red-bean.com>

	* root.c: Establish a reliable catch-all handler for the new root.
	After all the Scheme handler function might signal an error too,
	and we don't want to lose that.
	(cwdr_inner_body): Renamed from cwdr_body.
	(cwdr_outer_body): New function, to establish the user's handler,
	and pass control to cwdr_inner_body.
	(cwdr): Establish the reliable catch-all handler here, and pass
	control to cwdr_outer_body.
	(struct cwdr_body_data): New field, handler, to allow cwdr to pass
	the user's handler through to cwdr_outer_body.
	* throw.c (scm_handle_by_message): Move guts into....
	(handler_message): New static function.
	(scm_handle_by_message_noexit): New function.
	* throw.h (scm_handle_by_message_noexit): New prototype.

	* __scm.h: (SCM_FENCE): New macro: optimizer will not move code
	across this.  Only works on GCC.  Otherwise, we hope for the best.
	(SCM_DEFER_INTS, SCM_ALLOW_INTS): Use FENCE appropriately.  I have
	the feeling that real thread systems will not need this...

Sun Jun 22 15:46:35 1997  Jim Blandy  <jimb@floss.red-bean.com>

	Try to detect when people are using one version of libguile and a
	different version of ice-9.  People have been skewing things and
	sending in bug reports.
	* Makefile.am (versiondat.h): New file to generate.
	* version.c: #include "versiondat.h", to get version info.
	(scm_libguile_config_stamp): New function.
	* script.c: #include "version.h".
	(scm_compile_switches): Call scm_version to get version number.
	* scmconfig.h.in, Makefile.in: Regenerated.
	* Makefile.in: Regenerated.

	* Makefile.am (ETAGS_ARGS): Catch SCM_PROC, etc. so we can find
	primitive definitions under their Scheme names.

	* Makefile.am (libguile_la_LDFLAGS): Update library version to
	1:2.  Helps avoid confusion between installed and uninstalled libs.

	* scmconfig.h.in: Regenerated.  (Needed after June 3 change to
	../configure.in.)

	* gdb_interface.h (GDB_INTERFACE): Remove semicolon and trailing
	backslash from definition; this should be used like: GDB_INTERFACE;

Sun Jun 22 04:00:32 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* ioext.c (scm_duplicate_port): bug fix: don't try to make the
	new port unbuffered until its stream has been set.

Sat Jun 21 18:44:03 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* ports.h: new prototype.
	* ports.c (scm_flush_all_ports): new procedure, scsh compatible.

Sat Jun 21 00:25:03 1997  Jim Blandy  <jimb@floss.red-bean.com>

	Make things compile neatly under Sun's C compiler.
	* dynl.c (scm_dynamic_func): Cast return value from sysdep_dynl_func.
	* extchrs.c (xmbtowc): Make the second arg a normal char, not
	unsigned, because that's what the ANSI function takes.
	* extchrs.h (xmbtowc): Corresponding change to prototype.
	* genio.c (scm_gen_getc): Make buf plain chars.  Nobody wants
	uchars here.
	* mbstrings.c (scm_mb_ilength): Use ANSI arg syntax.  Make DATA
	argument plain char *.
	* strings.c (scm_string): Use SCM_ROCHARS, since c is a plain
	char.
	* tag.c (scm_tag): Remove unreachable statement.
	* unif.c (scm_array_to_list): If we want to shift a 1 bit to the
	top of the word, it should be unsigned.

	* eval.c (scm_lookupcar1): Don't declare var2 unless USE_THREADS
	is defined, to avoid warnings; it's only used in the
	conflict-checking code.  Which might go away anyway.
	(SCM_CEVAL): All goto's targeting the `dispatch' label are in
	conditionals; put the label definition in an #if too, to stifle
	warnings.

	* Makefile.am (EXTRA_DIST): Include ChangeLog-gh and
	ChangeLog-threads in the distribution.
	* Makefile.in: Regenerated.

Fri Jun 20 10:03:41 1997  Tim Pierce  <twpierce@bio-5.bsd.uchicago.edu>

	* guile-snarf.in: Changed regexp to support CPPs that insert
	whitespace between lexical tokens (which munges the `%%%' snarf
	cookie).

Tue Jun 17 13:49:56 1997  Tim Pierce  <twpierce@bio-5.bsd.uchicago.edu>

	* load.c (scm_init_load_path): Append $(datadir)/guile to
	%load-path, so modules do not have to be installed in Guile's
	current version directory.

Mon Jun 16 17:20:55 1997  Marius Vollmer  <mvo@zagadka.ping.de>

	* dynl.c (scm_dynamic_call, scm_dynamic_args_call): Wrap dynamic
 	function call in SCM_DEFER_INTS/SCM_ALLOW_INTS.
	(scm_dynamic_link, scm_dynamic_unlink, scm_dynamic_func): Always
 	call the sysdep functions with deferred ints.
	* dynl.c, dynl-dl.c, dynl-dld.c, dynl-shl.c (sysdep_dynl_link,
 	sysdep_dynl_unlink, sysdep_dynl_func): Expect to be called with
 	deferred interrupts and insert SCM_ALLOW_INTS before throwing an
 	error.

	* dynl.c (scm_dynamic_unlink, scm_dynamic_call): Return
 	SCM_UNSPECIFIED.

Sat Jun 14 19:00:58 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* scmsigs.c (sys_deliver_signals): add a comment about a probable bug.

Wed Jun 11 00:33:00 1997  Jim Blandy  <jimb@floss.red-bean.com>

	* Makefile.in: Regenerated after xtra_PLUGIN_guile_libs change in
	../configure.in.

Sun Jun  8 14:37:26 1997  Marius Vollmer  <mvo@zagadka.ping.de>

	* eval.c (scm_lookupcar1): New procedure to cope with a race
 	condition during lookup (when using threads).
	(scm_lookupcar): Implement in terms of scm_lookupcar1.
	(SCM_CEVAL): Use scm_lookupcar1 instead of scm_lookupcar in one
 	place.

Fri Jun  6 19:05:07 1997  Jim Blandy  <jimb@totoro.cyclic.com>

	* regex-posix.c (scm_regexp_exec): Use the `start' argument if
	supplied.  (Change from Tim Pierce.) 

Thu Jun  5 16:38:19 1997  Marius Vollmer  <mvo@zagadka.ping.de>

	* struct.c (init_struct): Forget to mention this in the "Wed Jun 4
 	23:47:01 1997" changelog: Slots are now initialized with `#f' by
 	default and not `()'.  `#f' is the canonical non-value in Scheme,
 	right?

Wed Jun  4 23:47:01 1997  Marius Vollmer  <mvo@zagadka.ping.de>

	* struct.c (struct_printer): New variable that holds a handle on
 	the Scheme variable *struct-printer*.  This variable can be set by
 	Scheme code to override the printing of structures.
	(scm_print_struct): If struct_printer is set, call it.  If it is
	not set, or returns #f, print the structure in the old fashion.
	Include "eval.h" for scm_apply.
	
Tue Jun  3 23:01:39 1997  Marius Vollmer  <mvo@zagadka.ping.de>

	* struct.c (scm_struct_ref, scm_struct_set_x): Use
 	scm_struct_i_n_words to get the number of fields, not
 	-scm_struct_n_extra_words.

	On the route to fancier struct printing:
	* struct.c (scm_print_struct): New function to print a structure.
  	Include "genio.h" to support it.  This function doesn't do
 	anything interesting right now, but I think it should be here
 	anyway.
	* struct.h: Include "print.h" and add prototype for
 	scm_print_struct.
	* print.c (scm_iprin1): Call scm_print_struct instead of trying to
 	print structures ourself.
	
Sun Jun  1 07:58:41 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* scmsigs.c (sys_deliver_signals): bug fix: reset got_signal[i]
	before applying the handler in case it doesn't return.

Sat May 31 18:57:51 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* scmsigs.h, async.h: updated.
	
	* _scm.h: if HAVE_RESTARTS is defined then don't use a SYSCALL
	loop.

	* posix.c (scm_uname): interpret only negative values as an error.
  	Solaris normally returns a positive value.

	* script.c (scm_compile_shell_switches): if we are not going into
	an interactive repl, set scm_mask_ints to zero so that asyncs can
	run.

	* simpos.c (scm_system):  don't ignore/unignore signals around
	the "system" call.

	* posix.c (scm_open_pipe): don't ignore/unignore signals around
	the "popen" call.

	* init.c (scm_boot_guile_1): don't call scm_init_signals, it's
	done in boot-9.scm instead.

	* scmsigs.c, async.c: Major rewriting of signal handling code.
	(scm_sigaction): new procedure.
 	(scm_sleep): don't wrap sleep in SCM_SYSCALL, it would mess up the
	timing.
	(scm_raise): return unspecified, throw error on failure.

Thu May 29 02:47:36 1997  Jim Blandy  <jimb@floss.cyclic.com>

	* regex-posix.c (scm_init_regex_posix): Register the "regex"
	feature, to help boot-9.scm decide whether to import the regex
	module. 

Thu May 29 02:19:40 1997  Jim Blandy  <jimb@floss.cyclic.com>

	* eval.c: Include scmconfig.h at the beginning of the file so that
 	HAVE_ALLOCA_H may properly be defined.  Thanks to Bill Janssen for
 	pointing this out.

	* regex-posix.c: #include "_scm.h" before conditionally #including
	<regex.h>; the former defines HAVE_REGCOMP.

	* regex-posix.c: #include <regex.h> conditionally, so the file is
	CPP'able (for dependency scanning) even on systems that don't have
	a <regex.h> header.

Tue May 27 23:48:38 1997  Jim Blandy  <jimb@floss.cyclic.com>

	Add new R4RS-compliant syntax for keywords.
	* read.c (scm_lreadr): Recognize `#:' as a prefix for keywords,
	regardless of the setting of the `keywords' read option.
	* kw.c (prin_kw): Print keywords using the `#:' syntax, so they
	can be re-read no matter what the setting of the `keywords' read
	option.

Tue May 27 22:47:31 1997  Tim Pierce  <twp@twp.tezcat.com>

	Add support for POSIX regular expressions.
	
	* regex-posix.c, regex-posix.h: New files. (Some code
	is taken liberally from rx/rgx.c in the old Guile dist.)

	* init.c: Include regex-posix.h.
	(scm_boot_guile_1): Call scm_init_regex_posix.
	
	* Makefile.am (EXTRA_libguile_la_SOURCES, modinclude_HEADERS):
	Add regex-posix.[ch] sources.
	* Makefile.in: Regenerated.
	
	* scmconfig.h.in: Add HAVE_REGCOMP macro.  (automake is supposed
	to do this automatically?  It didn't for me, bleh.)
	
Mon May 26 18:51:29 1997  Jim Blandy  <jimb@floss.cyclic.com>

	* fports.c (print_pipe_port): New function.
	(scm_fptob): Use print_pipe_port instead of scm_prinport; the
	latter doesn't even take the right arguments.

	* Makefile.am: Increment shared lib revision number.  I think
	sometimes the uninstalled Guile finds the installed shared lib;
	Gord says doing this might help.  As things turned out, I can't
	say whether it does.
	* Makefile.in: Regenerated.

	* gh_init.c (gh_enter): Cast c_main_prog to a void * before
 	passing it as the closure argument to scm_boot_guile.  (Bill
 	Janssen)
	
	* ports.c (print_void_port, putc_void_port, puts_void_port,
	write_void_port, flush_void_port, getc_void_port, close_void_port,
	noop0): Use ANSI prototypes instead of K&R declarations, so the
	initialization of void_port_ptob gets aggressively type-checked.
	Fix arguments of print_void_port and write_void_port.  (Bill
	Janssen)

	* COPYING, __scm.h, _scm.h, alist.c, alist.h, append.c, append.h,
 	appinit.c, arbiters.c, arbiters.h, async.c, async.h, backtrace.c,
 	backtrace.h, boolean.c, boolean.h, chars.c, chars.h,
 	continuations.c, continuations.h, coop-defs.h, coop-threads.c,
 	coop-threads.c.cygnus, coop-threads.h, coop-threads.h.cygnus,
 	coop.c, debug.c, debug.h, dynl-dl.c, dynl-dld.c, dynl-shl.c,
 	dynl-vms.c, dynl.c, dynl.h, dynwind.c, dynwind.h, eq.c, eq.h,
 	error.c, error.h, eval.c, eval.h, extchrs.h, feature.c, feature.h,
 	filesys.c, filesys.h, fports.c, fports.h, fsu-pthreads.h, gc.c,
 	gc.h, gdbint.c, gdbint.h, genio.c, genio.h, gh.h, gh_data.c,
 	gh_eval.c, gh_funcs.c, gh_init.c, gh_io.c, gh_list.c,
 	gh_predicates.c, gh_test_c.c, gh_test_repl.c, gscm.c, gscm.h,
 	gsubr.c, gsubr.h, guile.c, hash.c, hash.h, hashtab.c, hashtab.h,
 	init.c, init.h, ioext.c, ioext.h, kw.c, kw.h, libguile.h, list.c,
 	list.h, load.c, load.h, mallocs.c, mallocs.h, markers.c,
 	markers.h, mbstrings.c, mbstrings.h, mit-pthreads.c,
 	mit-pthreads.h, net_db.c, net_db.h, numbers.c, numbers.h,
 	objprop.c, objprop.h, options.c, options.h, pairs.c, pairs.h,
 	ports.c, ports.h, posix.c, posix.h, print.c, print.h, procprop.c,
 	procprop.h, procs.c, procs.h, putenv.c, ramap.c, ramap.h, read.c,
 	read.h, root.c, root.h, scmhob.h, scmsigs.c, scmsigs.h, script.c,
 	script.h, sequences.c, sequences.h, simpos.c, simpos.h, smob.c,
 	smob.h, snarf.h, socket.c, socket.h, srcprop.c, srcprop.h,
 	stackchk.c, stackchk.h, stacks.c, stacks.h, stime.c, stime.h,
 	strings.c, strings.h, strop.c, strop.h, strorder.c, strorder.h,
 	strports.c, strports.h, struct.c, struct.h, symbols.c, symbols.h,
 	tag.c, tag.h, tags.h, threads.c, threads.h, throw.c, throw.h,
 	unif.c, unif.h, variable.c, variable.h, vectors.c, vectors.h,
 	version.c, version.h, vports.c, vports.h, weaks.c, weaks.h: New
 	address for FSF.

Mon May 26 12:37:30 1997  Jim Blandy  <jimb@floss.cyclic.com>

	* script.c (scm_find_executable): Use prototype-style definition
 	here; apparently it's not quite right to have const in a prototype
 	and then use a K&R declaration.  I wonder if stuff like this will
 	go away if we compile with -Wrequire-prototypes, or whatever that
 	is...  (Bernard URBAN)

	* scmhob.h: New text from Bernard URBAN.

Sat May 17 17:14:36 1997  Jim Blandy  <jimb@floss.cyclic.com>

	* script.c: Don't #define const on hpux.  Configure takes care of
	this.  (Thanks to Larry Schwimmer.)

	* script.c: Use the HAVE_UNISTD_H symbol provided by autoconf to
	decide whether to #include <unistd.h>, instead of listing a bunch
	of systems.  Don't #include stdio twice.  Removed dyked-out
	definition of scm_find_impl_file.

Fri May 16 03:06:08 1997  Jim Blandy  <jimb@floss.cyclic.com>

	* Makefile.am (libguile_la_LDFLAGS): Update libguile's shared
	library version info to 1:0.
	* Makefile.in: Regenerated.

	* backtrace.c, backtrace.h, debug.c, debug.h, eq.c,
 	gdb_interface.h, gdbint.c, gdbint.h, gh_data.c, gh_init.c,
 	gh_io.c, gh_list.c, gh_predicates.c, gh_test_c.c, gh_test_repl.c,
 	init.c, net_db.c, options.c, options.h, ports.c, print.c, read.c,
 	script.h, snarf.h, srcprop.c, srcprop.h, stacks.c, stacks.h,
 	throw.c: Update copyright years; these files have been worked on
	significantly in 1997, but only had copyright years for 1996.
	Also, change name of copyright holder on some from Mikael
	Djurfeldt to Free Software Foundation; he has signed papers
	assigning the changes to the FSF.
	
	* script.c (scm_shell_usage): Pass FATAL to exit.  There's no
	reason not to give the user the option.

	* net_db.c (scm_gethost, scm_getnet, scm_getproto, scm_getserv):
	Return #f on end-of-file when scanning table (i.e. when called
	with no arguments).  Try to catch errors, when we can.
	* posix.c (scm_getgrgid, scm_getpwuid): Same.
	
	* script.h (scm_shell_usage, scm_compile_shell_switches): New
	external declarations.  These are useful.

Thu May 15 05:21:36 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* posix.c: don't include <sys/select.h> or define macros for
	select, since they were not used in this file.

	* filesys.c (scm_select): make the fifth parameter microseconds,
	not milliseconds.  let the fourth parameter be either a real value
	or an integer or #f.  The first, second and third arguments can
	now be vectors: the type of the corresponding return set will be
	the same.
	(set_element, get_element): new static procedures.

Wed May 14 12:18:12 1997  Jim Blandy  <jimb@floss.cyclic.com>

	* strports.c (scm_eval_string): New function.
	(scm_eval_0str): Trivially re-implemented in terms of
	scm_eval_string.
	* strports.h (scm_eval_string): New extern decl.

	* net_db.c (h_errno): Add extern decl for this.

	* fports.c (local_pclose): New function.
	(scm_pipob): Use it in the initializer here.

	From Tim Pierce:
	* net_db.c (scm_gethost, scm_getproto, scm_getnet, scm_getserv):
	Use a meaningful error message when signalling an error.  For
	this, scm_gethost must check h_errno rather than errno.

Tue May 13 16:40:06 1997  Jim Blandy  <jimb@floss.cyclic.com>

	* Makefile.in: Regenerated, using automake-1.1p.

Tue May 13 04:34:52 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* socket.c (scm_addr_vector): use SCM_UNDEFINED in scm_listify,
	not SCM_UNSPECIFIED.

	* script.c (scm_compile_shell_switches): don't append (quit) if
	interactive.
	(scm_shell): call scm_exit_status and exit on the result of the
	evaluation.

Mon May 12 17:23:58 1997  Jim Blandy  <jimb@floss.cyclic.com>

	Ensure that shared substrings are handled properly when passed to
	a system call or other foreign function.  Many thanks to Tim
	Pierce!
	* symbols.h (SCM_COERCE_SUBSTR): new macro.
	* filesys.c (scm_chmod, scm_rename, scm_delete_file, scm_mkdir,
 	scm_rmdir, scm_opendir, scm_chdir, scm_symlink, scm_readlink,
 	scm_lstat), ports.c (scm_sys_make_void_port), posix.c (scm_utime,
 	scm_putenv, scm_setlocale, scm_mknod), stime.c (setzone,
 	scm_strftime), vports.c (scm_make_soft_port), backtrace.c
 	(scm_display_error_message): use RO macros when strings may be RO.
	* error.c (scm_error_scm), filesys.c (scm_chown, scm_chmod,
 	scm_rename, scm_delete_file, scm_mkdir, scm_rmdir, scm_opendir,
 	scm_chdir, scm_symlink, scm_readlink, scm_lstat), ioext.c
 	(scm_freopen, scm_duplicate_port, scm_fdopen), net_db.c
 	(scm_gethost, scm_getnet, scm_getproto, scm_getserv), ports.c
 	(scm_sys_make_void_port), posix.c (scm_getgrgid, scm_utime,
 	scm_setlocale, scm_mknod), stime.c (setzone, scm_strptime,
 	scm_strftime), vports.c (scm_make_soft_port): use
 	SCM_COERCE_SUBSTR to make sure shared substrings are
 	null-terminated.

Mon May 12 15:33:10 1997  Jim Blandy  <jimb@totoro.cyclic.com>

	* error.c (scm_error): Add newline to error message.

	* init.c (scm_init_standard_ports): Doc fix.

Thu May  8 14:38:01 1997  Marius Vollmer  <mvo@zagadka.ping.de>

	* dynl-shl.c: Completely replaced with new code from Bernard
 	URBAN.

	* script.c (scm_ice_9_already_loaded): New variable.
	(scm_compile_shell_switches): Use it.

Mon May  5 20:35:08 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* filesys.c (scm_input_waiting_p): add missing third argument to
	scm_misc_error.

	* stime.c (scm_localtime): copy the result of localtime before
	calling gmtime in case they share a buffer.
	(scm_localtime, scm_mktime): throw an error if neither HAVE_TM_ZONE
	nor HAVE_TZNAME.

Fri May  2 19:07:11 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* eq.c (scm_equal_p): use SCM_TYP7SD (y) not SCM_TYP7SD (x).
	
Thu May  1 17:01:45 1997  Jim Blandy  <jimb@floss.cyclic.com>

	* Makefile.am (check-local): New target, which causes 'make check'
 	to run gh_test_c and gh_test_repl, with some trivial input.
	* Makefile.in: Rgnrtd.

Tue Apr 29 19:00:40 1997  Marius Vollmer  <mvo@zagadka.ping.de>

	* dynl.c (print_dynl_obj): Indicate whether the dynamic object has
 	been unlinked.

Mon Apr 28 06:10:14 1997  Gary Houston  <ghouston@actrix.gen.nz>

	* async.c (scm_sys_tick_async_thunk): commented out.  I'm not
	sure how this was supposed to work.
	(scm_async_click): don't send SCM_TICK_SIGNAL.
	(scm_init_async): don't initialize %tick-thunk.

	* the following change doesn't affect the Scheme interface:
 	gc-thunk is called at the end of garbage collection.  however it's
 	no longer implemented by pretending it's a signal.
	
	* gc.c (scm_gc_end): don't call scm_take_signal.  instead mark the
	system async corresponding to scm_gc_thunk.
	* async.h: declare scm_gc_async.
	* async.c (scm_sys_gc_async_thunk): apply the thunk named by
	gc-thunk directly, instead of going through a signal handler.
	(scm_gc_async): new variable, points to the GC system-async.
	(scm_init_async): save the GC async as scm_gc_async instead
	of using system_signal_asyncs.
	(scm_gc_vcell): new variable, stores the gc-thunk vcell.

Mon Apr 28 19:14:44 1997  Jim Blandy  <jimb@floss.cyclic.com>

	* Makefile.am (libpath.h, cpp_err_symbols.c, cpp_sig_symbols.c):
	Don't screw up if we're interrupted.
	* Makefile.in: Regeneradet.

Sun Apr 27 17:57:15 1997  Jim Blandy  <jimb@floss.cyclic.com>

	* aclocal.m4: Removed; unnecessary, given changes of Apr 24.

	* Makefile.am (modincludedir): Use "ice-9" instead of "@module@";
	we're not using AM_INIT_GUILE_MODULE any more.
	* Makefile.in: Reneregated.

Thu Apr 24 00:41:08 1997  Jim Blandy  <jimb@floss.cyclic.com>