Date: Fri, 31 Aug 2012 22:30:14 GMT From: dfilter@FreeBSD.ORG (dfilter service) To: freebsd-threads@FreeBSD.org Subject: Re: threads/170073: commit references a PR Message-ID: <201208312230.q7VMUEYg082562@freefall.freebsd.org>
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The following reply was made to PR threads/170073; it has been noted by GNATS. From: dfilter@FreeBSD.ORG (dfilter service) To: bug-followup@FreeBSD.org Cc: Subject: Re: threads/170073: commit references a PR Date: Fri, 31 Aug 2012 22:22:29 +0000 (UTC) Author: ed Date: Fri Aug 31 22:22:14 2012 New Revision: 239960 URL: http://svn.freebsd.org/changeset/base/239960 Log: Properly enable Clang-style atomics when available. In addition to testing against cxx_atomic, we must check c_atomic. The former is only set when building C++ code. Also use __has_extension instead of __has_feature. This allows us to use the atomics outside of C11. Reported by: Ariane van der Steldt <ariane stack nl> PR: threads/170073 Modified: head/include/stdatomic.h Modified: head/include/stdatomic.h ============================================================================== --- head/include/stdatomic.h Fri Aug 31 21:45:49 2012 (r239959) +++ head/include/stdatomic.h Fri Aug 31 22:22:14 2012 (r239960) @@ -33,7 +33,7 @@ #include <sys/cdefs.h> #include <sys/_types.h> -#if __has_feature(cxx_atomic) +#if __has_extension(c_atomic) || __has_extension(cxx_atomic) #define __CLANG_ATOMICS #elif __GNUC_PREREQ__(4, 7) #define __GNUC_ATOMICS _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscribe@freebsd.org"
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