Log message:
Add libatomic_ops bl3.mk, and bump API depends since only the latest
boehm-gc version depends on it, and older ones will fail because
libatomic_ops is not installed.

Log message:
Update to 7.4.0:

== [7.4.0] 2013-11-17 ==

* Add 'bytes reclaimed' counters to public GC_prof_stats_s.
* Add AArch64 (64-bit ARM) target support.
* Add GC_LONG_REFS_NOT_NEEDED ifdefs to exclude long link functionality.
* Add GC_get_prof_stats[_unsafe]() to GC public API.
* Add GC_push_all/conditional() to GC public API.
* Add assertion on number_of_objs to GC_extend_size_map.
* Add assertion to GC_enable() ensuring no counter underflow.
* Add assertion to LOCK definition that lock is not already held.
* Add assertion to LONG_MULT and remove useless assert in PUSH_CONTENTS_HDR.
* Add double-lock assertion to GC_acquire_mark_lock.
* Add manual POSIX fork handling support (Android).
* Add note about 'pkg-config' solving problem with autoconf 2.68 or older.
* Add public GC_set/get_abort_func to replace default GC_on_abort.
* Add public GC_start_mark_threads() to allow parallel marker in fork child.
* Add public setter and getter for GC_push_other_roots.
* Add support of Android logger.
* Add tests for GC_register/move/unregister_long_link.
* Add thread suspend/resume signals public setters (POSIX threads).
* Added long weakref support.
* Adjust GC_dont_expand/gc/precollect and GC_print_stats type to match gc.h.
* Adjust README.md title and references to doc .html files in it.
* Adjust build scripts to enable additional test library in staticrootstest.
* Adjust logged messages in start_mark_threads and GC_thr_init.
* Adjust printf format specifiers in GC_print_trace.
* Allow not to rely on __data_start value (Linux).
* Allow pthread_kill error code logging in GC_suspend/resume (debugging).
* Allow to compile GC_inner_start_routine aside from extra/gc.c.
* Allow to omit libc atexit() call.
* Avoid LOCK/UNLOCK hard-coding in gc_locks.h for PS3 target.
* Better document GC_warn_proc in gc.h.
* Call GC_on_abort (with NULL argument) on exit(1).
* Call GC_stats/verbose_log_printf instead of GC_log_printf if print_stats.
* Change policy regarding version numbers ("micro" part instead of \ 
"alpha").
* Changed C99-style designated init of GC_dl_hashtbl struct to use C89-style.
* Check GC_base result in GC_print_all_smashed_proc.
* Check that SIG_SUSPEND and SIG_THR_RESTART are different (Pthreads).
* Check traceable_allocator.allocate result before dereference in test_cpp.
* Code refactoring of GC_x_printf (move shared code to macro).
* Convert readme to markdown.
* Default to use libc_stack_end in single-threaded GC on glibc targets.
* Define GC_VSNPRINTF internal macro in misc.c (code refactoring).
* Define functions in darwin_semaphore.h as inline instead of static.
* Define old_bus_handler static variable only if used (Unix).
* Detect dladdr() presence by configure.
* Disable find-leak GC_gcollect on GC abnormal EXIT.
* Do not define _setjmp/_longjmp macros in mach_dep.c.
* Do not duplicate android_log_write output to GC log file (Android).
* Do not include sigcontext.h if NO_SIGCONTEXT_H (Linux).
* Do not set GC_lock_holder by call_with_alloc_lock if assertions disabled.
* Do not use pthread_getattr_np if NO_PTHREAD_GETATTR_NP specified.
* Elaborate comment on dependencies in autogen.sh.
* Eliminate 'cast from int to pointer' warning in GC_exclude_static_roots.
* Eliminate 'missing exception specification' warning in gc_cpp.cc (Clang).
* Eliminate 'uninitialized variable use' warning in test_printf (cord).
* Eliminate 'unused result' compiler warning in main() of test_cpp.
* Eliminate 'unused value' compiler warning in GC_stop_world (Pthreads).
* Eliminate 'unused variable' compiler warning in start_mark_threads (HP/UX).
* Eliminate Clang warning for GC_pthread_exit attribute.
* Eliminate GCC warning about uninitialized 'hhdr' in GC_allochblk_nth.
* Eliminate GCC warning in GC_get_main_stack_base (OpenBSD).
* Eliminate GCC warnings in setjmp_t.c, test_cpp and cord 'de' app.
* Eliminate GC_first_nonempty atomic value reload in GC_mark_local assertion.
* Eliminate SIGBUS-related dead code in GC_write_fault_handler (Linux).
* Eliminate warning and simplify expression in GC_init_explicit_typing.
* Enable 'force GC at every GC_malloc' debug-related functionality.
* Enable on-demand debug logging in GC_FindTopOfStack (Darwin).
* Enable prefetch operations by default (GCC 3.0+).
* Enable staticrootstest for the case of GC shared library build.
* Enable thread-local allocation support for Clang on Cygwin.
* Explicitly specify that Darwin, Linux and Solaris platforms have dladdr.
* Fix ABORT definition for mingw32ce (WinCE).
* Fix AM_CONFIG_HEADER in configure for autoconf-2.69-1.
* Fix GC_CreateThread and GC_beginthreadex definition for Cygwin.
* Fix GC_INIT_CONF_ROOTS in gc.h for Android.
* Fix GC_INLINE definition to comply with ISO C90 standard (GCC).
* Fix GC_remove_all_threads_but_me for Android (fork support).
* Fix debug_register_displacement calls from GC_debug_generic_malloc_inner.
* Fix dyn_load.c compilation for Android 4.3.
* Fix make disclaim_test to link with new GNU ld linking rules.
* Improve GC error printing atomicity in GC_debug_X and GC_print_obj.
* Improve GC output atomicity in GC_print_obj, GC_print_all_errors.
* Improve debug-only messages of add/remove_roots and init_linux_data_start.
* Improve fork test logging in gctest.
* Improve logged messages about heap size and usage.
* Improve logging for Android differentiating messages by log level.
* Improve staticrootstest (add global data to library, add lib w/o GC_INIT).
* Improve staticrootstest checks (tests).
* Include "config.h" instead of "private/config.h" on \ 
HAVE_CONFIG_H.
* Include proper header file in 'tools' for configuration macros.
* Include pthread_np.h from pthread_stop_world.c on OpenBSD.
* Log error messages to stderr instead of stdout in tests.
* Make GC_generic_malloc_ignore_off_page() public.
* Make GC_mark_lock_holder variable static.
* Make GC_print_trace always thread-safe and remove 'lock' argument.
* Mark GC_started_thread_while_stopped() as GC_INNER.
* Minimize code duplication in GC_mark_and_push.
* Move 'include setjmp.h' from mach_dep.c to gc_priv.h.
* Move GC_OPENBSD_UTHREADS definition to private/gcconfig.h (OpenBSD).
* Move GC_get_suspend/thr_restart_signal to misc.c for NaCl and OpenBSD.
* Move LOCK/UNLOCK from GC_unregister_disappearing_link_inner outer.
* Port BDWGC to Android/x86.
* Postpone the suspend signal in GC_dirty_init only if used to stop world.
* Prepend '#' symbol to GC number in logged messages.
* Prevent POSIX fork if mprotect_thread is started (Darwin).
* Prevent abort on GC_err/warn_printf write failure.
* Prevent misleading AC_MSG_ERROR/AS_IF errors reported in configure.ac.
* Put gc_cpp symbols into 'boehmgc' namespace if GC_NAMESPACE defined.
* Recognize GC_DONT_GC macro in gc.h (causes GC_INIT to turn off GC).
* Recognize GC_SIG_SUSPEND and GC_SIG_THR_RESTART tuning macros in gc.h.
* Redirect WRITE to __android_log_write if GC_ANDROID_LOG (Android).
* Refine comment of GC_is_heap_ptr and GC_thread_is_registered in gc.h.
* Register dynamic libraries via dl_iterate_phdr on Android and OpenBSD.
* Remove DebugBreak on WriteFile failure (Win32).
* Remove GC_BUILD definition from build scripts.
* Remove abort on open log failure from GC_write (Win32).
* Remove configure.ac outdated revision number.
* Remove nested EXPECT in GC_core_finalized_malloc.
* Remove nested always-false ifdef for HPUX and FREEBSD.
* Remove redundant GC_err_printf before abort.
* Remove unused UTHREAD_SP_OFFSET macro (OpenBSD).
* Rename subthread_create to subthreadcreate_test (Makefile).
* Replace GC_COND_LOG_PRINTF calls with WARN for allocation failure messages.
* Replace GC_log/err_printf() followed by ABORT with ABORT_ARGn().
* Replace GC_stats_log_printf with GC_DBG/INFOLOG_PRINTF.
* Replace SIG_SUSPEND/THR_RESTART macros to variables in pthread_stop_world.
* Replace Win32 GC_delete_gc_thread with GC_delete_gc_thread_no_free.
* Replace conditional GC_log_printf calls with GC_COND/VERBOSE_LOG_PRINTF.
* Replace sprintf with defensive snprintf.
* Replace var-args GC_noop with GC_noop6 (to eliminate Clang warning).
* Simplify LOCK/UNLOCK macro definition for static code analysis tools.
* Specify GC_malloc result is unused in some tests.
* Specify GC_pthread_join result is unused in threadkey_test.
* Specify LT_INIT in configure.ac.
* Start of port to QNX.
* Support rthreads introduced in OpenBSD 5.2+.
* Suppress 'GC_dont_gc deprecated' warning in gc.h if GC_DONT_GC.
* Tag GC malloc routines with alloc_size attribute for Clang 3.2+.
* Test NO_WRAP_MARK_SOME macro to suppress WRAP_MARK_SOME-specific code.
* Turn off GC_LOOP_ON_ABORT functionality if GC compiled with NO_DEBUGGING.
* Turn on world-stop delay logging at debug level by default for Android.
* Use EXPECT in GC_COND/VERBOSE_LOG_PRINTF.
* Use GC_log_printf for logging instead of GC_[err_]printf.
* Use compiler TLS for Android NDK gcc/arm.
* Use memcpy (BCOPY) instead of strcpy (to suppress GCC warning).
* Use pthread API to operate thread-local data on Linux if no compiler TLS.
* Workaround 'ELF_DATA/EM_ALPHA redefined' warning in Android linker.h.
* Workaround 'unresolved __tls_get_addr' error for Android NDK Clang.

== [7.3alpha2] 2012-05-11 ==

* Add 'const' qualifier to pointer argument of some API functions.
* Add GC_UNDERSCORE_STDCALL, UNICODE macro templates to configure (Win32).
* Add GC_get_thr_restart_signal, GC_thread_is_registered to GC API.
* Add GC_is_heap_ptr, GC_move_disappearing_link to GC API.
* Add SHORT_DBG_HDRS macro template to configure.
* Add Symbian port to mainline.
* Add TODO file.
* Add assertion ensuring proper alignment of 'pushed' GC symbols.
* Add assertion in GC_getspecific on qtid.
* Add assertion to GC_incremental_protection_needs, refine documentation.
* Add assertion to check GC_large_free_bytes by GC_finish_collection.
* Add configure option to compile all library .c files into single gc.o.
* Add cordtest to make check.
* Add disclaim callbacks for efficient finalization (ENABLE_DISCLAIM).
* Add finalization.html to 'doc' folder.
* Add javaxfc.h to the installation set of GC header files (configure).
* Add on-heap-resize event notification to API.
* Adjust GC_log_printf format specifiers (regarding signed/unsigned long).
* Adjust GC_requested_heapsize on GC_init if GC_INITIAL_HEAP_SIZE given.
* Allow GC_exclude_static_roots() region start to be unaligned.
* Allow Win32 DllMain chaining on the client side.
* Allow to exclude finalization support by GC_NO_FINALIZATION macro.
* Allow to get memory via Win32 VirtualAlloc (USE_WINALLOC) on Cygwin.
* Avoid unnecessary GC_find_limit invocation if GC_no_dls.
* Avoid use of deprecated GC_dont_gc and GC_stackbottom in gctest.
* Cast pointers to word (instead of unsigned long) in specific.h.
* Changed the order in autogen.sh so ltmain exists in time for automake.
* Declare privately and use handy GC_base_C() for constant object pointers.
* Define GC_DLL if DLL_EXPORT at GC build (for Cygwin/MinGW).
* Define GC_READ_ENV_FILE in configure for WinCE unless gc-debug is off.
* Do not compile backgraph.c unless configure '--enable-gc-debug'.
* Do not compile pthread_stop_world.c for Cygwin/Darwin (configure).
* Do not install ancient new_gc_alloc.h broken for modern STL (configure).
* Enable GC_MIN_MARKERS to set minimal number of pthread-based markers.
* Enable PARALLEL_MARK and THREAD_LOCAL_ALLOC for FreeBSD in configure.
* Enable parallel mark by default in configure (Darwin/Linux/Solaris/Win32).
* Export GC_is_marked, GC_clear/set_mark_bit (for mark-bit manipulation).
* Extend thread-related debug messages.
* Fix 'configure --enable-cplusplus' for Cygwin/MinGW.
* Fix DATASTART (and other minor improvements) for NaCl target.
* Fix GC_setspecific to prevent garbage collection inside.
* Fix compiler warning in cordtest.
* Fix minor warnings reported by GCC with '-pedantic' option.
* Fix static data roots registration on Android (if GC is shared).
* Implement GC_get_stack_base for Darwin for single-threaded mode.
* Improve GC_allochblk algorithm of block splitting when unmapping enabled.
* Improve GC_collect_or_expand algorithm for many finalizers registered case.
* In tests, print a message in case a test is a no-op.
* Instruct configure to hide internal libgc.so symbols if supported by GCC.
* Log amount of unmapped memory (if enabled) on marking-for-collection.
* Make __data_start a weak symbol to allow loading modules on mips.
* Move "cord" library tests to "cord/tests" folder.
* Move asm machine-dependent files to "src" folder.
* Move build tools sources to "tools" folder.
* Move cord_pos.h to public headers folder.
* Open log file in APPEND mode on Win32 (similar that on Unix/Cygwin).
* Optimize some functions by moving pthread_self calls out of LOCK section.
* Place only major per-release changes description to ChangeLog (this file).
* Prevent compiler warnings in GC_FindTopOfStack and GC_ports (Darwin).
* Recognize GC_LOG_TO_FILE_ALWAYS macro to log to 'gc.log' by default.
* Remove all auto-generated files from the repo.
* Remove binary icon file for de_win.
* Remove cordtest from "cord" library.
* Remove duplicate MacOS_Test_config.h file.
* Remove gc_amiga_redirects.h (included internally) from public headers.
* Remove obsolete Makefile.DLL (superseded by Cygwin/MinGW configure).
* Remove obsolete unused asm files for ALPHA, HPUX, SGI, RS6000, ULTRIX.
* Remove unsupported MMAP_STACKS (specific to Solaris threads).
* Remove unused ancient SILENT, __STDC__, NO_SIGNALS macros.
* Replace ARGSUSED comment-based annotation with GCC 'unused' attribute.
* Replace GC_ms_entry declaration with opaque definition for public API.
* Replace long GC_markers global variable with int GC_markers_m1.
* Replace pointer relational comparisons with non-pointer ones.
* Replace printf PRIxMAX specifier with '%p' for thread id debug output.
* Require autoconf 2.61 instead of v2.64.
* Simplify autogen.sh (use autoreconf).
* Split GC_abort with GC_on_abort and abort() invoked from ABORT.
* Support GC_ATTR_MALLOC for MS VisualStudio.
* Tag auxiliary malloc-like API functions with 'malloc' attribute.
* Tag deprecated variables in GC API.
* Tag must-be-non-null arguments of GC API functions.
* Turn on "extra" GCC warnings.
* Turn on unused-parameter checking for GCC.
* Update AUTHORS file.
* Use EXPECT for checking various 'initialized' boolean variables.
* Use USE_COMPILER_TLS on Cygwin.
* Use pthread_key for thread-local storage on FreeBSD.
* Use union of AO_t and word to favor strict-aliasing compiler optimization.

Log message:
Update MASTER_SITES and HOMEPAGE

Log message:
Update to 7.2e: Over a year of development, no concise summary found.
From browsing the changelog:
FreeBSD fixes, other portability changes, typo fixes, some bug fixes.

Log message:
Drop superfluous PKG_DESTDIR_SUPPORT, "user-destdir" is default these days.

Log message:
Patch was accepted -- add upstream commit URL.

Log message:
Add comment to patch-ab.

Log message:
Remove unnecessary hunk (was included upstream).

Log message:
Update to 7.2d:

[7.2d]

2012-08-09  Ivan Maidanski <ivmai@mail.ru>

	* doc/README: Change version to 7.2d (rev. D).

2012-08-05  Ivan Maidanski <ivmai@mail.ru>

	* config.guess: Regenerate (by autoreconf -vif using autoconf-2.68,
	automake-1.11.1 and libtool-2.4).
	* config.sub: Likewise.
	* m4/libtool.m4: Likewise.

2012-08-02  Ivan Maidanski <ivmai@mail.ru>

	* misc.c (GC_clear_stack_inner): Use GC_approx_sp() instead of
	"dummy[0]" set to "&dummy" value (that worked as \ 
expected only for
	STACK_GROWS_DOWN case).

2012-08-02  Ivan Maidanski <ivmai@mail.ru>

	* alloc.c (min_bytes_allocd, GC_stopped_mark): Use GC_approx_sp()
	instead of "&dummy"; remove 'dummy' local variable.
	* dyn_load.c (GC_cond_add_roots): Likewise.
	* misc.c (GC_init): Likewise.
	* os_dep.c (GC_get_stack_base, GC_get_main_stack_base): Likewise.
	* pthread_stop_world.c (GC_suspend_handler_inner,
	nacl_pre_syscall_hook, __nacl_suspend_thread_if_needed): Likewise.
	* pthread_support.c (GC_thr_init): Likewise.
	* ptr_chck.c (GC_on_stack): Likewise.
	* win32_threads.c (GC_push_stack_for): Likewise.
	* extra/setjmp_t.c (main): Define volatile 'sp' local variable, store
	its address to it and use it instead of "&dummy"; remove 'dummy' local
	variable.
	* mach_dep.c (GC_with_callee_saves_pushed): Use volatile for 'dummy'
	local variable.
	* misc.c (GC_clear_stack_inner): Store address of volatile 'dummy'
	local array (i.e. 'sp' value) to its first element (and use it in the
	comparison of addresses) to prevent any harmful optimizations as C
	officially disallows comparisons of pointers to different objects
	(e.g., some Mac OS X clang releases might turn a conditional
	expression that uses 'dummy' address into a constant); update comment.
	* misc.c (GC_call_with_stack_base): Use "&base" instead of \ 
"&dummy"
	(it is safe to use address of base here); remove dummy variable.

2012-08-01  Ivan Maidanski <ivmai@mail.ru>

	* misc.c (GC_call_with_stack_base): Call GC_noop1 after fn()
	invocation to prevent a tail-call optimization.

2012-07-21  Ivan Maidanski <ivmai@mail.ru>

	* os_dep.c (GC_get_stack_base): Abort if pthread_stackseg_np fails
	(if GC_OPENBSD_THREADS).
	* pthread_stop_world.c (GC_suspend_all): Get correct stack_ptr by
	calling pthread_stackseg_np (subtracting ss_size from ss_sp) instead
	of retrieving it from OpenBSD pthread implementation-dependent context
	(if GC_OPENBSD_THREADS); remove comment.

2012-06-17  Ivan Maidanski <ivmai@mail.ru>

	* tests/initsecondarythread.c: Include "private/config.h" if
	HAVE_CONFIG_H (mostly to have GC_WIN32_PTHREADS defined for
	pthreads-w32 target).
	* tests/thread_leak_test.c: Likewise.
	* tests/threadkey_test.c: Likewise.

2012-06-16  Ivan Maidanski <ivmai@mail.ru>

	* tests/test_cpp.cc (WinMain): Prevent SEGV in strtok() by checking
	"cmd" WinMain argument for NULL (in that case "argc" local \ 
variable is
	set to 0).

2012-06-16  Ivan Maidanski <ivmai@mail.ru>

	* tests/test_cpp.cc (main): Call GC_set_all_interior_pointers(1)
	before GC_INIT to ensure that the collector considers pointers to
	object interiors as valid ones (such a pointer could emerge as
	a result of a type cast to subclass in case of multiple inheritance);
	add comment.

Log message:
Update to 7.2c:
The results of GC_MALLOC_ATOMIC, GC_get_maps, and GC_scratch_alloc
are now properly checked, avoiding segmentation faults. Several
private symbols have been made externally visible to aid third
party software which unfortunately relies on them. Minor NetBSD
issues have been resolved.