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pgsql: Given a gcc-compatible xlc compiler, prefer xlc-style atomics.

From:	Noah Misch <noah(at)leadboat(dot)com>
To:	pgsql-committers(at)postgresql(dot)org
Subject:	pgsql: Given a gcc-compatible xlc compiler, prefer xlc-style atomics.
Date:	2015-07-09 00:46:23
Message-ID:	E1ZCzyp-0008Qy-7Z@gemulon.postgresql.org
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Given a gcc-compatible xlc compiler, prefer xlc-style atomics.

This evades a ppc64le "IBM XL C/C++ for Linux" compiler bug. Back-patch
to 9.5, where the atomics facility was introduced.

Branch
------
master

Modified Files
--------------
src/include/port/atomics.h | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)

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