Some of the thread support code (threads.c, coop.c, etc.) used to live
in a separate directory called threads.  In April 1997, that dir was
merged with libguile; this is the ChangeLog from the old directory.

Please put new entries in the ordinary ChangeLog.

Mon Feb 24 21:48:12 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* configure.in: Added AM_MAINTAINER_MODE

Fri Feb 21 23:52:16 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* Makefile.am (modincludedir, modinclude_HEADERS): Added until
	libthreads is integrated into libguile, otherwise people who try
	to use Guile from an independent application will have trouble
	finding libguile/../threads/threads.h.

Sat Jan 11 18:35:39 1997  Marius Vollmer  <mvo@zagadka.ping.de>

	* Makefile.am (noinst_HEADERS): Added coop-defs.h so that it gets
 	distributed.

Tue Jan  7 14:05:35 1997  Mikael Djurfeldt  <mdj@kenneth>

	* coop-defs.h: Added includes which define `time_t'.

Sun Jan  5 15:07:07 1997  Jim Blandy  <jimb@floss.cyclic.com>

	* Makefile.am (EXTRA_DIST): Add .cvsignore.

	* Makefile.am (libthreads_a_SOURCES): Add threads.h.  I think this
	is right...
	(noinst_HEADERS): Remove it from here.
	* Makefile.in: Rebuilt.

Thu Jan  2 15:15:16 1997  Mikael Djurfeldt  <mdj@kenneth>

	These changes separates threads declarations which everybody wants
 	to see (coop-defs.h) from declarations internal to the threads
 	module (coop-threads.h), thereby solving the "-I ../qt" problem.
	(This is not the final solution.  All files in the threads
 	directory should be moved into libguile since 1. it is too tightly
 	interconnected with libguile internals to be a separate module and
 	2. it is actually quite small.  When doing this, things can be
 	organized in a more natural way.)

	* coop-defs.h: New file.
	
	* coop-threads.c: Added #include "coop-threads.h"

	* coop-threads.h: Moved coop_t struct and threads macros to
	coop-defs.h.  Added #include "coop-defs.h".

	* threads.h: Changed #include "coop-threads.h" --> #include
	"coop-defs.h".

Mon Dec  9 17:20:39 1996  Tom Tromey  <tromey@cygnus.com>

	* Makefile.am (.c.x): Use guile-snarf.
	(INCLUDES): Search for headers in libguile source and build
	directories.

Mon Dec  2 20:37:07 1996  Tom Tromey  <tromey@cygnus.com>

	* PLUGIN/greet: Removed.
	* Makefile.am, aclocal.m4: New files.
	* configure.in: Updated for Automake.

Sun Nov 10 18:21:00 1996  Jim Blandy  <jimb@totoro.cyclic.com>

	* Makefile.in (uninstall_threads): rmdir -f isn't portable;
	use rm -rf instead.

Sun Nov 10 17:41:21 1996  Jim Blandy  <jimb@floss.cyclic.com>

	* Makefile.in, configure.in: When threads are disabled,
 	short-circuit the `install' and `uninstall' Makefile targets too.

Sat Nov  2 21:29:33 1996  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* threads.c: Added #include "dynwind.h".
	Added scheme level procedure `single-active-thread?'.

	* mit-pthreads.c, mit-pthreads.h: Port completed but untested.

	* coop-threads.h: Increased SCM_THREAD_SWITCH_COUNT from 10 to 50
	to decrease overhead at the cost of granularity.

	* coop.c, coop-threads.h: Made coop_global_runq and
	coop_global_sleepq visible globally.

	* coop-threads.c (scm_single_thread_p): New function.

Thu Oct 24 22:37:03 1996  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>

	* threads.c: #include "dynwind.h"

	* coop-threads.c (scm_threads_mark_stacks): Removed unused
 	variable.

	* coop.c (coop_qput, coop_all_qput, coop_all_qremove): Removed
 	unused variable.

Wed Oct  9 19:46:00 1996  Jim Blandy  <jimb@floss.cyclic.com>

	* Makefile.in: Doc fixes.

	* Makefile.in (ancillary): Corrected spelling from `ancillery'.
	
	* Makefile.in (source, h_files, ancillary): Updated to describe
	the actual contents of the tree.
	(PLUGIN_distfiles): New variable.
	(dist-dir): New target, to create a sub-tree of a distribution.
	
	* Makefile.in (all): Depend on @target_all@ instead of
 	libthreads.a, so the configure script can make this makefile do
 	nothing when threads aren't in use.
	* configure.in: If we using cooperative threads, then let
	@target_all@ expand to libthreads.a; otherwise, let it expand to
	the empty string.

Sat Oct  5 18:40:09 1996  Mikael Djurfeldt  <mdj@kenneth>

	* threads.c, threads.h (scm_init_threads, scm_threads_init): Added
	stack base pointer argument so that main thread can be initialized
	properly.

	* configure.in: Added lines to set default -g flag in CFLAGS and
	LDFLAGS.

	* coop-threads.c: Added argument checking to scheme level
	procedures.  Change the way threads are launched.

	* threads.h: Added #include "procs.h"
	Added macros SCM_THREADP, SCM_MUTEXP and SCM_CONDVARP.

Wed Oct  2 14:36:44 1996  Mikael Djurfeldt  <mdj@woody.nada.kth.se>

	* coop-threads.c (scm_threads_free_thread, scm_threads_free_mutex,
 	scm_threads_free_condvar):  free --> scm_must_free

	* coop-threads.h: Added macros SCM_THREAD_LOCAL_DATA and
	SCM_SET_THREAD_LOCAL_DATA.
	
Tue Oct  1 00:05:54 1996  Mikael Djurfeldt  <mdj@woody.nada.kth.se>

	* coop-threads.c (scm_threads_mark_stacks): scm_save_regs_gc_mark
	is already in root state (should it really?).  Don't allocate it
	locally; Remove extra argument to scm_mark_locations.

	* coop-threads.h: Changed #include <qt.h> --> #include "../qt/qt.h"
	(SCM_THREAD_INITIALIZE_STORAGE, SCM_DEFER_INTS, SCM_ALLOW_INTS,
 	SCM_REDEFER_INTS, SCM_REALLOW_INTS, scm_coop_create_info_type):
 	Removed; Declaration of scm_coop_create_info removed.  Added
 	definition of SCM_THREADS_SWITCHING_CODE.

	* coop-threads.c: Removed gscm_type objects.  Renamed all
 	  gscm_threads_<type>_die --> scm_threads_free_<type> and let them
 	  return freed size as smob freeing code normally does.  Removed
 	  thread creation mutex and thread creation info structure.
	(gscm_threads_thread_equal, gscm_pthread_delete_info,
 	 scm_threads_init): Removed.
	(scm_threads_init_coop_threads): Removed allocation of thread
 	  local data.  Removed initialization of thread creation mutex.
  	  Renamed scm_threads_init_coop_threads --> scm_threads_init.
	(scm_threads_mark_stacks): Mark root object instead of local
 	  protects.
	(launch_thread): thunk and handler is passed as a scheme list.
  	  Call scm_with_new_root instead of scm_with_dynamic_root.  Let
 	  scm_with_new_root care about thread local variables.  Removed
 	  unlocking of creation mutex.
	(scm_call_with_new_thread): Remove initialization of create info
 	  structure and locking of creation mutex.  Do smob allocation.
	(scm_join_thread): Extract thread data in a new way.
	(scm_make_mutex): Do smob allocation.
	(scm_lock_mutex, scm_unlock_mutex): Extract thread data in a new
 	way.
	(scm_make_condition_variable): Do smob allocation.
	(scm_wait_condition_variable, scm_signal_condition_variable):
 	Extract thread data in a new way.

	* threads.c: Don't use files "no-threads.[hc]".  Removed old code
 	for creation of thread, mutex and condition-variable objects.
  	Added smobs instead.  Use scm_threads_free_<type> for freeing.
	(scm_init_threads): Moved scm_add_feature ("threads") to
 	feature.c.
	
	* threads.h: Added declaration of scm_init_threads.  Added macro
 	selectors SCM_THREAD_DATA, SCM_MUTEX_DATA and SCM_CONDVAR_DATA.

	* coop-threads.c, coop-threads.h, coop.c, fsu-pthreads.h,
	mit-pthreads.c, mit-pthreads.h, threads.c, threads.h: Replaced
	"gscm" --> "scm" everywhere.  Lots of name changes to concord with
	new Guile.

Thu Apr  4 10:19:56 1996  Tom Tromey  <tromey@creche.cygnus.com>

	Fixed CFLAGS usage:
	* Makefile.in (XCFLAGS): New macro.
	(.c.x): Use it.
	(.c.o): Ditto.
	* configure.in: Use DEFS, not X_CFLAGS.

Fri Mar 29 17:08:14 1996  Anthony Green  <green@snuffle.cygnus.com>

	* no-threads.c (gscm_threads_init_all): This function is now 
	found in libguile.

Fri Mar 29 16:52:27 1996  Tom Tromey  <tromey@creche.cygnus.com>

	* configure.in (CFLAGS): Use "test !=", not "! test".

Fri Mar 29 11:51:18 1996  Anthony Green  <green@snuffle.cygnus.com>

	* Makefile.in (install): make install now works properly.

Thu Mar 28 07:52:11 1996  Anthony Green  <green@csk3.cygnus.com>

	* mit-pthreads.c: dynwinds set to BOOL_T for new threads.
	Added dummy yield function.

Tue Mar 26 15:17:42 1996  Anthony Green  (green@gerbil.cygnus.com)

	* coop.c: Added new sleep() function. Behaves properly
	among multiple cooperative threads. Replaces system call.

Mon Mar 25 11:05:41 1996  Anthony Green  (green@gerbil.cygnus.com)

	* coop.c (COOP_STKSIZE): Boosted default stack size.

	* coop-threads.c: Moved declaration of scm_coop_create_info
	to avoid multiple definitions at link time.

Sun Mar 24 23:04:29 1996  Anthony Green  (green@gerbil.cygnus.com)

        * configure: Rebuilt
	* configure.in: Upgraded thread library/include support.

Tue Mar 19 12:44:26 1996  Anthony Green  (green@gerbil.cygnus.com)

	* coop.c, coop-threads.h coop-threads.c: Major cleanup of
        cooperative threading code.

Tue Feb 13 15:45:39 1996  Anthony Green  <green@hoser.cygnus.com>

	* mit-pthreads.h: Defined pthread aware SCM_DEFER_INTS and friends.

Mon Feb 12 19:59:55 1996  Anthony Green  <green@hoser.cygnus.com>

	* threads.c, no-threads.c, mit-pthreads.c, threads.scm: Creation.