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Subject: [Bug boehm-gc/66848] boehm-gc fails test suite on x86_64-apple-darwin15
Date: Fri, 16 Oct 2015 06:44:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66848

--- Comment #18 from Jack Howarth <howarth.at.gcc at gmail dot com> ---
The upstream commit...

https://github.com/ivmai/bdwgc/commit/faef04e7cb3741163dfdf65900ef5d2a0530be0f

2011-02-09 Ivan Maidanski <ivmai@mail.ru>
        * src/atomic_ops.c (AO_USE_NO_SIGNALS, AO_USE_NANOSLEEP): New
        macros.
        * src/atomic_ops.c (AO_USE_WIN32_PTHREADS): Imply
        AO_USE_NO_SIGNALS.
        * src/atomic_ops.c: Don't include signal.h if AO_USE_NO_SIGNALS.
        * src/atomic_ops.c: Include time.h if AO_USE_NANOSLEEP.
        * src/atomic_ops.c (AO_locks, AO_pause): Reformat the code.
        * src/atomic_ops.c (AO_pause): Use nanosleep() if
        AO_USE_NANOSLEEP.
        * src/atomic_ops.c (all_sigs, initialized,
        AO_compare_and_swap_emulation,
        AO_compare_double_and_swap_double_emulation): Use
        AO_USE_NO_SIGNALS instead of AO_USE_WIN32_PTHREADS.

potentially could contain useful change for darwin. This is the specific commit
in between the 7.2alpha4 and 7.2alpha6 releases which eliminates the test suite
failures on darwin. The caveat is that these failures are for all darwin and
not just darwin15.