Mac OS X does not support comparing a mutex to its initializer. Create a test for this.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@256370 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2010-04-06 19:28:42 +00:00
parent d3f44c979c
commit bcbafc800e
4 changed files with 97 additions and 19 deletions

View File

@@ -595,6 +595,20 @@ 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)