Log Message:
libatomic_ops: update to 7.8.0.

== [7.8.0] 2023-03-26 ==

* Add AUTHORS file to the list of installed documentation
* Add goal to Makefile.msft to build all tests but not execute them
* Allocate marks[] dynamically and report all found errors in test_stack
* Always export stack_init/push_release/pop_acquire from atomic_ops_gpl
* Always use 'mfence' for nop_full if target CPU supports SSE2 (MS VC/x86)
* Avoid 'cast increases required alignment' warnings in atomic_ops_malloc.c
* Avoid breaking strict-aliasing rules in test_malloc and test_stack
* Avoid code duplication in AO_stack_push_explicit_aux_release
* Better document test_stack internals
* Build atomic_ops.lib by Makefile.msft (MS VC)
* Build test object and executable files in tests folder (MS VC)
* Define AO_stack_t uniformly
* Define double_compare_and_swap_full if MS VS 2017+ (x86)
* Do not expose AO_REAL_HEAD/NEXT_PTR implementation in header by default
* Document config macros in README_win32 and remove them from configure
* Eliminate 'function is never used' cppcheck warning for AO_stack_init
* Enforce most strict level of compiler warnings (MS VC)
* Ensure atomic_ops.c global symbols are always declared as extern 'C'
* Explicitly outline symbols exported in AO shared libraries with AO_API
* Hide AO_free_list symbol
* Implement AO_stack_init using memset
* Implement AO_test_and_set using InterlockedExchange8 (MS VC)
* Implement and/or/xor for AO_t, short and int types (MS VC)
* Implement nf/acq/rel variants of primitives on Windows RT (MS VC)
* Mention MIT near core library licensing terms in LICENSE file
* Move all README_*.txt and license files to the top folder
* Move all non-double intrinsic-based primitives to msftc/common32_defs.h
* Move gcc-4/alpha workaround outside AO_stack_pop_explicit_aux_acquire
* New AO_stack_is_lock_free API function
* New configure option (--disable-gpl) to skip building of libatomic_ops_gpl
* Print message of almost-lock-free implementation in test_stack if used
* Refine LICENSE and README about code parts covered by MIT and GPL-2.0
* Refine copyright terms in GPL source files
* Reformat atomic_ops_stack.c/h files
* Remove 'lib' prefix for atomic_ops_gpl.lib in Makefile.msft
* Remove redundant assert in AO_stack_pop_explicit_aux_acquire
* Remove redundant cast to AO_t in lock-free AO_stack_pop_acquire
* Rename LICENSING.txt to LICENSE file
* Rename VERBOSE macro to VERBOSE_STACK in test_stack (refactoring)
* Rename fetch_and_add to fetch_then_add in test_stack (refactoring)
* Replace obsolete AC_HELP_STRING with AS_HELP_STRING in configure
* Replace obsolete AC_TRY_COMPILE with AC_COMPILE_IFELSE in configure
* Split test_stack main into several functions (refactoring)
* Support Elbrus 2000 (gcc/e2k)
* Support build with CMake
* Support double-wide CAS on armv7+ and UWP/arm64 (MS VC)
* Support test_atomic with MS build w/o the need to run GNU make first
* Use GCC atomic intrinsics for SPARC
* Use builtin_expect in AO_stack_push_explicit_aux_release