Resolve minor warnings (reported by GCC with '-pedantic') in checksums

* checksums.c (GC_update_check_page): Explicitly cast a pointer
argument of GC_printf to void* to match %p format specifier.

Fix extra/gc.c to include new finalized_mlc.c file

* extra/gc.c: Include finalized_mlc.c file (after finalize.c).

Resolve minor warnings in tests (reported by GCC with '-pedantic' option)

* tests/disclaim_test.c (pair_dct, pair_new): Explicitly cast
a pointer argument of GC_printf to void* to match %p format specifier.
* tests/test.c (cons, print_int_list, run_one_test, check_heap_stats):
Likewise.

Add macro to optionally omit GC_move_disappearing_link

* finalize.c (GC_move_disappearing_link): Do not define if
GC_MOVE_DISAPPEARING_LINK_NOT_NEEDED defined (new macro).

Swap GC_unregister_disappearing_link and GC_move_disappearing_link
prototypes order in include/gc.h

Refactor GC_move_disappearing_link() code;
make GC_move_disappearing_link(link,link) return GC_SUCCESS

* finalize.c (GC_move_disappearing_link): Rename "from", "to"
arguments to "link" and "new_link", respectively.
* include/gc.h (GC_move_disappearing_link): Likewise.
* finalize.c (GC_move_disappearing_link): Rename "to_curr_dl",
"from_index", "to_index" local variables to "new_dl", "curr_index",
"new_index", respectively.
* finalize.c (GC_move_disappearing_link): Add curr_hidden_link,
new_hidden_link local variables to evaluate GC_HIDE_POINTER(link) and
GC_HIDE_POINTER(new_link) only once.
* finalize.c (GC_move_disappearing_link): Reformat code.
* finalize.c (GC_move_disappearing_link): Do not ABORT in case of
unaligned "link", return GC_NOT_FOUND instead (similar to
GC_unregister_disappearing_link behavior).
* finalize.c (GC_move_disappearing_link): If new_link is equal to
link then return GC_SUCCESS instead of GC_DUPLICATE.
* include/gc.h (GC_move_disappearing_link, GC_NOT_FOUND): Refine and
update documentation comment.
* tests/test.c (mktree): Add "new_link" local variable; add
GC_move_disappearing_link invocations; apply
GC_unregister_disappearing_link to "new_link".

add GC_move_disappearing_link

* finalize.c (GC_move_disappearing_link): New function, moves a
  disappearing link.

* include/gc.h: Add declaration, and new return code GC_NOT_FOUND.

Merge branch 'master' of github.com:ivmai/bdwgc

Merge remote-tracking branch 'origin/paurkedal-disclaim-v2'

Update AUTHORS (add one email)

Update AUTHORS

gcconfig.h: Add machine description for Hexagon

Do not define internal GC_parse_map_entry() unless really used.

* include/private/gc_priv.h (GC_parse_map_entry): Do not declare
unless USE_PROC_FOR_LIBRARIES.
* os_dep.c (GC_parse_map_entry): Test USE_PROC_FOR_LIBRARIES macro
in addition to DYNAMIC_LOADING (in condition whether to define this
function).

Resolve minor merge conflict in gc_disclaim.h, disclaim_bench.c

Fix compiler warnings in disclaim tests

finalized_mlc.c: Add GC_ATTR_UNUSED tag to GC_finalized_disclaim

.gitignore: Ignore disclaim tests executables

Add comment on GC_init_finalized_malloc.

Add gcj_mlc.o to the windows-untested project files (untested).

Use gc_priv.h API for timing in tests/disclaim_bench.c.

Make disclaim_bench.c more portable.

* tests/disclaim_bench.c (main): Run all three sub-tests in the same
process, rather than invoking them through a system-call.
* tests/disclaim_bench.c (free_count, testobj_finalize): Drop the use of
atomic ops, since the benchmark is single-threaded.  We can now also run
the test unconditionally.

Add finalized_mlc.* to various makefiles.

Review 'disclaim' add-on partially; fix code in some places again

Skip disclaim_bench.c if AO_fetch_and_add1 is missing.

Adjust tests code for 'disclaim' feature

Review 'disclaim' add-on partially; fix code in some places

Fix issues proposed in Ivan's previous commit, etc.

* disclaim.c -> {finalized_mlc.c, misc.c}: Move low-level code to misc.c and
the finalized object-kind to finalized_mlc.c.
* Makefile.am: Update accordingly.
* reclaim.c: Condition #include "gc_disclaim.h" and remove "register".
* include/gc_disclaim.h, include/private/gc_priv.h, finalized_mlc.c, misc.c:
Add GC_API, GC_CALL, and GC_CALLBACK.  Use typedefs for function pointers.
* tests/disclaim_test.c, tests/disclaim_bench.c: Fix portability and other
issues.

* include/gc_disclaim.h: Forward declare ...
* finalized_mlc.c: ... and export GC_finalized_objfreelist.
* thread_local_alloc.c (GC_destroy_thread_local): Return finalized
freelists though the same global.
* include/private/thread_local_alloc.h: Tweak (move array above comment).

* Makefile.dj, NT_MAKEFILE, NT_STATIC_THREADS_MAKEFILE,
NT_X64_STATIC_THREADS_MAKEFILE, NT_X64_THREADS_MAKEFILE, gc.mak,
windows-untested/vc60/gc.dsp, windows-untested/vc70/gc.vcproj,
windows-untested/vc71/gc.vcproj: Add include/gc_disclaim.h to various build
systems.  (Untested.)

ENABLE_DISCLAIM: Make stylistic fixes in many places and add many FIXME.

Add and update some copyright and remove README.disclaim.

* README.disclaim: Remove as it only contained patching instructions.
* disclaim.c: Add copyright notice.
* include/gc_disclaim.h: Update year on copyright notice.

Fix some issues and avoid warnings in disclaim-related code.

* disclaim.c, include/gc_disclaim.h: Fix prototype.
* include/private/gc_priv.h, mark.c: Avoid missing initializer warning.
* mark.c: Fix type of a size_t variable in GC_reclaim_block.
* misc.c: Initialize ok_mark_unconditionally.
* reclaim.c: Tweak and avoid unused label warning.
* tests/disclaim_bench.c, tests/disclaim_test.c: Remove or
conditionalize unused variables.

Implement freeing of blocks with disclaim callbacks.

Adjust comments and whitespace.

Adjustment to disclaim.c after config.h and a prototype change.

Fixed compilation errors, also tests passes.

reclaim.c: Removed obsolete argument to GC_reclaim_small_nonempty_block.

Fixed memory leak issue with unconditional marking.

disclaim.c: Renamed RAW_BYTES_FROM_INDEX to GC_RAW_BYTES_FROM_INDEX according to change in original branch.

README.disclaim: Patching instruction.

Add disclaim callbacks for efficient finalization.

Importing gc-20070403-disclaim-1.0.patch.

* configure.ac: Add --disable-disclaim option and set ENABLE_DISCLAIM macro
and conditional accordingly.
* include/include.am, Makefile.am Add sources disclaim.c and
include/gc_disclaim.h.
* Makefile.direct: Ditto and define ENABLE_DISCLAIM.

* include/private/gc_priv.h (obj_kind): Add ok_mark_unconditionally,
ok_disclaim_proc and ok_disclaim_cd.
* misc.c (GC_new_kind_inner): Initialize them.
* include/private/gc_priv.h (hblkhdr): Add HAS_DISCLAIM and
MARK_UNCONDITIONALLY flags.
* allchblk.c (setup_header): Set HAS_DISCLAIM and MARK_UNCONDITIONALLY flags
as indicated by the object kind.

* reclaim.c: Main adjustments to support the disclaim callbacks.
* mark.c (GC_push_unconditionally, GC_push_next_marked_uncollecable):
Unconditionally mark from objects in blocks flagged MARK_UNCONDITIONALLY.
This preserves links reachable from the finalizer when using the the
finalized object kind.

* disclaim.c: Add file with support functions for disclaim callbacks and
implementation of the "finalized" object kind.
* include/gc_disclaim.h: Add file providing the corresponding API.
* include/private/thread_local_alloc.h (thread_local_freelists): Add
finalized_freelists.
* thread_local_alloc.c: Initialize them.

* tests/tests.am, tests/disclaim_test.c, tests/disclaim_bench.c: Add
disclaim-related tests.

Update TODO file

Resolve some minor warnings reported by GCC with '-pedantic' option

* allchblk.c (GC_print_hblkfreelist, GC_dump_regions, GC_freehblk):
Explicitly cast a pointer argument of GC_printf to void* to match %p
format specifier.
* reclaim.c (GC_print_free_list): Likewise.

mach_dep.c: Replace C++ style comments with C ones

tests: Add missing checks of GC_malloc result (for out-of-memory)

* tests/test.c (mktree): Insert CHECK_OUT_OF_MEMORY to report mktree()
out-of-memory failures.
* tests/trace_test.c (mktree): Test whether GC_MALLOC_ATOMIC returns
NULL (exit with an error code and the appropriate message printed in
this case).

Add missing GC_ATTR_UNUSED annotation to a function in backgraph

* backgraph.c (pop_in_progress): Tag the argument with GC_ATTR_UNUSED.

Fix compiler warnings in disclaim tests

finalized_mlc.c: Add GC_ATTR_UNUSED tag to GC_finalized_disclaim

.gitignore: Ignore disclaim tests executables

Merge branch 'remotes/paurkedal/t/disclaim-pullreq' plus some minor fixes

Add comment on GC_init_finalized_malloc.

Add gcj_mlc.o to the windows-untested project files (untested).

Use gc_priv.h API for timing in tests/disclaim_bench.c.

Make disclaim_bench.c more portable.

* tests/disclaim_bench.c (main): Run all three sub-tests in the same
process, rather than invoking them through a system-call.
* tests/disclaim_bench.c (free_count, testobj_finalize): Drop the use of
atomic ops, since the benchmark is single-threaded.  We can now also run
the test unconditionally.

Add finalized_mlc.* to various makefiles.

Review 'disclaim' add-on partially; fix code in some places again

Skip disclaim_bench.c if AO_fetch_and_add1 is missing.

Adjust tests code for 'disclaim' feature

Review 'disclaim' add-on partially; fix code in some places

Merge remote-tracking branch 'remotes/paurkedal/t/disclaim-pullreq' into paurkedal-disclaim-v2

Change configure to define NO_DEBUGGING if "--disable-gc-debug"

* configure.ac (NO_DEBUGGING): Define based on testing enable_gc_debug
value (instead of based on with_cross_host value).

Fix commit 505b041 regarding configure THREAD_LOCAL_ALLOC (Win32)

* configure.ac (THREAD_LOCAL_ALLOC): Test enable_shared and
enable_static values properly when setting THREAD_LOCAL_ALLOC
in case PARALLEL_MARK is off (Win32 only).

Update TODO file

Define GC_DLL if building only dynamic libraries.
Update README for Cygwin/MinGW.

* configure.ac (GC_DLL): New AC template; define if only the dynamic
libraries are being built.
* configure.ac (THREAD_LOCAL_ALLOC): Define for Win32 implicitly
if static libraries are being built (i.e. GC_DLL is not defined).
* doc/README.win32: Update "GNU Tools" section.

Fix thread model in configure for MinGW.

* configure.ac (THREADS): Change "posix" to "win32" in case of
cross-compiling to MinGW.

Enable parallel marker in configure for Solaris.

* configure.ac (PARALLEL_MARK): Check --enable-parallel-mark also for
Solaris.

Add missing GC_ATTR_UNUSED annotation to some functions in gctest

* tests/test.c (tiny_reverse_test, WinMain, thr_run_one_test,
thr_window): Tag the arguments with GC_ATTR_UNUSED.

Remove obsolete Makefile.DLL (superseded by cygwin/mingw configure)

* Makefile.DLL: Remove.
* Makefile.am (EXTRA_DIST): Remove Makefile.DLL entry.
* Makefile.direct (OTHER_MAKEFILES): Likewise.
* Makefile.dj (OTHER_FILES): Likewise.
* Makefile.direct: Remove comment about Makefile.DLL.

Add TODO item

.gitignore: Add subthread_create

Fix GC_inner_start_routine() to prevent local variable clobbering.

* pthread_start.c (GC_inner_start_routine): Add volatile to "me" local
variable to prevent its clobbering.

Add missing GC_ATTR_UNUSED annotation to mark_ex_handler().

* mark.c (mark_ex_handler): Tag "disp_ctxt" argument with
GC_ATTR_UNUSED.

Adjust subthread_create test.

* tests/subthread_create.c: Skip test if AO_fetch_and_add is missing.
* tests/subthread_create.c: Implement for Win32 threads (include
windows.h instead of pthread.h unless GC_PTHREADS).
* tests/subthread_create.c (entry, main): Likewise.
* tests/subthread_create.c (MAX_SUBTHREAD_DEPTH, MAX_SUBTHREAD_COUNT,
INITIAL_THREAD_COUNT): Define only if INITIAL_THREAD_COUNT undefined.
* tests/subthread_create.c (MAX_ALIVE_THREAD_COUNT): New macro.
* tests/subthread_create.c (DECAY_NUMER, DECAY_DENOM): Define only if
DECAY_NUMER is undefined.
* tests/subthread_create.c (INITIAL_THREAD_COUNT, MAX_SUBTHREAD_DEPTH,
MAX_SUBTHREAD_COUNT): Make the values smaller.
* tests/subthread_create.c (thread_created_cnt): Move out of entry();
make volatile.
* tests/subthread_create.c (thread_ended_cnt): New AO variable.
* tests/subthread_create.c (entry): Use "arg" value (instead of
address); adjust thread_ended_cnt on function exit; print thread
number in case of failure; limit the number of concurrently running
threads (by MAX_ALIVE_THREAD_COUNT).
* tests/subthread_create.c (main): Print threads creation statistic on
exit; exit with code 1 (instead of 69) in case of failure.

tests: print a message in case a test is a no-op.

* tests/threadkey_test.c (main): Print a message if the test is
skipped.

Merge remote-tracking branch 'paurkedal/pullreq/subthread_create_test'

Fix issues proposed in Ivan's previous commit, etc.

* disclaim.c -> {finalized_mlc.c, misc.c}: Move low-level code to misc.c and
the finalized object-kind to finalized_mlc.c.
* Makefile.am: Update accordingly.
* reclaim.c: Condition #include "gc_disclaim.h" and remove "register".
* include/gc_disclaim.h, include/private/gc_priv.h, finalized_mlc.c, misc.c:
Add GC_API, GC_CALL, and GC_CALLBACK.  Use typedefs for function pointers.
* tests/disclaim_test.c, tests/disclaim_bench.c: Fix portability and other
issues.

* include/gc_disclaim.h: Forward declare ...
* finalized_mlc.c: ... and export GC_finalized_objfreelist.
* thread_local_alloc.c (GC_destroy_thread_local): Return finalized
freelists though the same global.
* include/private/thread_local_alloc.h: Tweak (move array above comment).

* Makefile.dj, NT_MAKEFILE, NT_STATIC_THREADS_MAKEFILE,
NT_X64_STATIC_THREADS_MAKEFILE, NT_X64_THREADS_MAKEFILE, gc.mak,
windows-untested/vc60/gc.dsp, windows-untested/vc70/gc.vcproj,
windows-untested/vc71/gc.vcproj: Add include/gc_disclaim.h to various build
systems.  (Untested.)

ENABLE_DISCLAIM: Make stylistic fixes in many places and add many FIXME.

Add and update some copyright and remove README.disclaim.

* README.disclaim: Remove as it only contained patching instructions.
* disclaim.c: Add copyright notice.
* include/gc_disclaim.h: Update year on copyright notice.

Fix some issues and avoid warnings in disclaim-related code.

* disclaim.c, include/gc_disclaim.h: Fix prototype.
* include/private/gc_priv.h, mark.c: Avoid missing initializer warning.
* mark.c: Fix type of a size_t variable in GC_reclaim_block.
* misc.c: Initialize ok_mark_unconditionally.
* reclaim.c: Tweak and avoid unused label warning.
* tests/disclaim_bench.c, tests/disclaim_test.c: Remove or
conditionalize unused variables.

Implement freeing of blocks with disclaim callbacks.

Adjust comments and whitespace.

Adjustment to disclaim.c after config.h and a prototype change.

Fixed compilation errors, also tests passes.

reclaim.c: Removed obsolete argument to GC_reclaim_small_nonempty_block.

Fixed memory leak issue with unconditional marking.

disclaim.c: Renamed RAW_BYTES_FROM_INDEX to GC_RAW_BYTES_FROM_INDEX according to change in original branch.

README.disclaim: Patching instruction.

Add disclaim callbacks for efficient finalization.

Importing gc-20070403-disclaim-1.0.patch.

* configure.ac: Add --disable-disclaim option and set ENABLE_DISCLAIM macro
and conditional accordingly.
* include/include.am, Makefile.am Add sources disclaim.c and
include/gc_disclaim.h.
* Makefile.direct: Ditto and define ENABLE_DISCLAIM.

* include/private/gc_priv.h (obj_kind): Add ok_mark_unconditionally,
ok_disclaim_proc and ok_disclaim_cd.
* misc.c (GC_new_kind_inner): Initialize them.
* include/private/gc_priv.h (hblkhdr): Add HAS_DISCLAIM and
MARK_UNCONDITIONALLY flags.
* allchblk.c (setup_header): Set HAS_DISCLAIM and MARK_UNCONDITIONALLY flags
as indicated by the object kind.

* reclaim.c: Main adjustments to support the disclaim callbacks.
* mark.c (GC_push_unconditionally, GC_push_next_marked_uncollecable):
Unconditionally mark from objects in blocks flagged MARK_UNCONDITIONALLY.
This preserves links reachable from the finalizer when using the the
finalized object kind.

* disclaim.c: Add file with support functions for disclaim callbacks and
implementation of the "finalized" object kind.
* include/gc_disclaim.h: Add file providing the corresponding API.
* include/private/thread_local_alloc.h (thread_local_freelists): Add
finalized_freelists.
* thread_local_alloc.c: Initialize them.

* tests/tests.am, tests/disclaim_test.c, tests/disclaim_bench.c: Add
disclaim-related tests.

Add test case to expose a bug with thread creation.

Rewrite ChangeLog to contain only major per-release changes description
(only starting from 7.2alpha7, the rest remains in the form of commit
log except for versions prior to 7.0alpha9)

Fix mach_dep.c to include sys/ucontext.h on Mac OS X 10.6.

* include/private/gc_priv.h (DARWIN): Include AvailabilityMacros.h
(unless MAC_OS_X_VERSION_MAX_ALLOWED already defined).
* mach_dep.c (GC_with_callee_saves_pushed): Include sys/ucontext.h
(instead of ucontext.h) if Mac OS X 10.6 or higher.

Resolve "comparison of signed and unsigned values" compiler warning.

* backgraph.c (per_object_helper): Cast "i" local variable to word
(instead of "sz") in a comparison.

.gitignore: Ignore tracetest executable.

Add TODO item.

Replace ARGSUSED comment-based annotation with GCC 'unused' attribute.
Turn on unused-parameter checking for GCC.

* alloc.c (GC_try_to_collect_general): Add GC_ATTR_UNUSED attribute
to an argument.
* tests/test.c (tiny_reverse_test, thr_run_one_test): Likewise.
* backgraph.c (reset_back_edge, update_max_height): Replace ARGSUSED
annotation with GC_ATTR_UNUSED attribute for some arguments.
* checksums.c (GC_add_block): Likewise.
* dbg_mlc.c (GC_debug_change_stubborn, GC_debug_end_stubborn_change,
GC_check_heap_block): Likewise.
* finalize.c (GC_null_finalize_mark_proc): Likewise.
* gcj_mlc.c (GC_gcj_fake_mark_proc): Likewise.
* mark.c (GC_noop, clear_marks_for_block, GC_mark_and_push): Likewise.
* mark_rts.c (GC_push_conditional_with_exclusions,
GC_push_current_stack): Likewise.
* misc.c (GC_default_oom_fn, GC_do_blocking_inner): Likewise.
* os_dep.c (GC_fault_handler_openbsd, GC_fault_handler,
GC_remove_protection, GC_page_was_dirty, GC_page_was_ever_dirty):
Likewise.
* pthread_stop_world.c (GC_suspend_handler, GC_suspend_handler_inner):
Likewise.
* pthread_support.c (GC_do_blocking_inner): Likewise.
* stubborn.c (GC_change_stubborn, GC_end_stubborn_change): Likewise.
* tests/test.c (fail_proc1): Likewise.
* typd_mlc.c (GC_array_mark_proc): Likewise.
* win32_threads.c (GC_do_blocking_inner, DllMain): Likewise.
* include/private/gc_priv.h (GC_ATTR_UNUSED): Define new macro.
* cordxtra.c (CORD_ATTR_UNUSED): Likewise.
* cordxtra.c (CORD_nul_func, CORD_lf_close_proc): Replace ARGSUSED
annotation with CORD_ATTR_UNUSED attribute for an argument.
* mach_dep.c (GC_clear_stack_inner): Remove ARGSUSED annotation and
use "limit" argument in the function (to suppress compiler warning).
* misc.c (GC_clear_stack_inner): Remove ARGSUSED.
* tests/threadkey_test.c (on_thread_exit_inner, on_thread_exit):
Use all function arguments (to suppress compiler warning).
* configure.ac (CFLAGS): Remove "-Wno-unused-parameter" option.

Add TODO item.

Move "cord" library tests to "cord/tests" folder.

* cord/cordtest.c, cord/de.c, cord/de_win.c, cord/de_cmds.h,
cord/de_win.h: Move to cord/tests folder.
* cord/de_win.RC: Move ad rename to cord/tests/de_win.rc.
* .gitignore: Add cord/tests/de_win.res file.
* BCC_MAKEFILE (cord/de.obj, cord/de_win.obj, cord/de_win.res):
Rename (targets and source moved to cord/tests).
* NT_MAKEFILE (cord/de.obj, cord/de_win.obj): Likewise.
* CMakeLists.txt (cord): Rename cord/de.c, cord/de_win.c (source moved
to cord/tests).
* EMX_MAKEFILE (cord/cordtest.exe, cord/de.exe): Rename
cord/cordtest.c, cord/de.c to cord/tests (source moved to cord/tests).
* Makefile.direct, Makefile.dj (cord/cordtest, cord/de): Likewise.
* OS2_MAKEFILE (cord/cordtest.exe): Likewise.
* SMakefile.amiga (cord/cordtest.o): Likewise.
* Makefile.direct, Makefile.dj (CORD_SRCS): Rename cord/cordtest.c,
cord/de.c, cord/de_cmds.h, cord/de_win.c, cord/de_win.h,
cord/de_win.rc (moved to cord/tests).
* NT_MAKEFILE, NT_STATIC_THREADS_MAKEFILE,
NT_X64_STATIC_THREADS_MAKEFILE, NT_X64_THREADS_MAKEFILE
(cord/de_win.res, cord/de.exe): Move cord/de.obj, cord/de_win.obj to
cord/tests.
* cord/cord.am (EXTRA_DIST): Move cordtest.c, de.c, de_cmds.h,
de_win.h, de_win.c, de_win.rc to cord/tests.
* doc/README.cords: Update (regarding de.c file move).
* gc.mak (SOURCE): Move de_win.c, de.c, de_win.rc to cord/tests.

Remove cordtest from "cord" library.

* cord/cord.am (libcord_la_SOURCES): Remove cordtest.c from libcord.

Fix Makefile.direct after Makefile removal from package.

* .gitignore: Add "base_lib", "c++", "gc.a" files.
* Makefile.direct (Makefile): Add rule to create (or overwrite)
Makefile from Makefile.direct file.
* Makefile.direct (clean): Remove "base_lib", "c++" files as well.

.gitignore: Ignore object, exe files in subfolders; ignore de_win.res.

Adjust scripts after Makefile removal from package.

* Makefile.direct (OTHER_FILES): Remove Makefile.
* Makefile.dj (OTHER_FILES): Likewise.
* Makefile.direct (dist gc.tar): Do not backup old auto-generated
Makefile.
* Makefile.dj: Remove comment about Makefile.DLLs.
* README: Update (about Makefile.direct).
* doc/README.autoconf: Likewise.
* doc/simple_example.html: Likewise.
* doc/simple_example.html (sample): Remove outdated comment for
GC_INIT.

Add TODO item.

Move and rename "callprocs" utility to tools/callprocs.sh.

* callprocs: Move/rename to tools/callprocs.sh.
* Makefile.am (dist_noinst_SCRIPTS): Remove.
* Makefile.am (EXTRA_DIST): Add tools/callprocs.sh (move from
dist_noinst_SCRIPTS).
* Makefile.direct (OTHER_FILES): Rename callprocs to
tools/callprocs.sh.
* Makefile.dj (OTHER_FILES): Likewise.
* README: Likewise.
* doc/leak.html: Likewise.
* README: Fix a typo.

Delete configure.host (move its content to configure.ac).

* Makefile.am (dist_noinst_SCRIPTS): Remove configure.host.
* Makefile.direct (GNU_BUILD_FILES): Likewise.
* Makefile.am (CONFIG_STATUS_DEPENDENCIES): Remove.
* configure.ac: Put the content of configure.host instead of
including it.
* configure.host: Remove file.

Adjust CMakeLists.txt for Cygwin (set CMAKE_LEGACY_CYGWIN_WIN32).

* CMakeLists.txt (CMAKE_LEGACY_CYGWIN_WIN32): Set to 0 (required for
Cygwin).

Increase tests/test.c max heap size limit (required for Cygwin)

* tests/test.c (check_heap_stats): Increase max_heap_sz value (for
32-bit targets) from 15M by 1M (as the former is hit sometimes on
Cygwin).