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| author | tilghman <tilghman@f38db490-d61c-443f-a65b-d21fe96a405b> | 2010-04-06 19:40:13 +0000 |
|---|---|---|
| committer | tilghman <tilghman@f38db490-d61c-443f-a65b-d21fe96a405b> | 2010-04-06 19:40:13 +0000 |
| commit | c9152af4c8d52e1aa252652274a422d27d4fd2cd (patch) | |
| tree | 465a06aec37f70919fbbca7014a5c0a868ff8071 /configure.ac | |
| parent | 65403051b5a2d23840242c3db1574dd24bb60a48 (diff) | |
Merged revisions 256370 via svnmerge from
https://origsvn.digium.com/svn/asterisk/trunk
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r256370 | tilghman | 2010-04-06 14:28:42 -0500 (Tue, 06 Apr 2010) | 2 lines
Mac OS X does not support comparing a mutex to its initializer. Create a test for this.
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git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.6.1@256372 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 3d0c0ed3e..ef73d5f67 100644 --- a/configure.ac +++ b/configure.ac @@ -542,6 +542,20 @@ fi AST_C_DEFINE_CHECK([PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP], [PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP], [pthread.h]) +# Can we compare a mutex to its initial value? +# Generally yes on OpenBSD/FreeBSD and no on Mac OS X. +AC_MSG_CHECKING(whether we can compare a mutex to its initial value) +AC_LINK_IFELSE( + AC_LANG_PROGRAM([#include <pthread.h>], [pthread_mutex_t lock; + if ((lock) != ((pthread_mutex_t) PTHREAD_MUTEX_INITIALIZER)) { + return 0; + } + return 0]), + AC_MSG_RESULT(yes) + AC_DEFINE([CAN_COMPARE_MUTEX_TO_INIT_VALUE], 1, [Define to 1 if your system's implementation of mutexes supports comparison of a mutex to its initializer.]), + AC_MSG_RESULT(no) +) + #if test "${cross_compiling}" = "no"; #then #AC_MSG_CHECKING(for working epoll support) |