Changeset 139 for trunk/aclocal.m4

Timestamp:

Oct 28, 2007, 4:59:22 PM (17 years ago)

Author:

rainer

Message:

Detect availability of recursive mutexes on Linux.

File:

• trunk/aclocal.m4 (modified) (1 diff)

trunk/aclocal.m4

@@ -1794 +1794 @@
         fi
 
+        # Detect PTHREAD_MUTEX_RECURSIVE
+        AC_MSG_CHECKING([for recursive mutexes])
+        mutex_recursive=no
+        AC_TRY_LINK([
+#define _XOPEN_SOURCE 500
+#include <pthread.h>], [
+pthread_mutexattr_t   mta;
+pthread_mutexattr_settype(&mta, PTHREAD_MUTEX_RECURSIVE);
+return 0;],[mutex_recursive=yes])
+        if test "x$mutex_recursive" = "xyes"
+        then
+          AC_DEFINE(HAVE_PTHREAD_MUTEX_RECURSIVE,1,[Define if you have recursive mutexes.])
+        fi
+        AC_MSG_RESULT($mutex_recursive)
+
         LIBS="$save_LIBS"
         CFLAGS="$save_CFLAGS"