fix PTHREAD_MUTEX_RECURSIVE detection on SUSE 10

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@13386 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/apr/build/apr_threads.m4

@@ -224,7 +224,8 @@ AC_DEFUN(APR_CHECK_SIGWAIT_ONE_ARG,[
 dnl Check for recursive mutex support (per SUSv3).
 AC_DEFUN([APR_CHECK_PTHREAD_RECURSIVE_MUTEX], [
   AC_CACHE_CHECK([for recursive mutex support], [apr_cv_mutex_recursive],
-[AC_TRY_RUN([#include <sys/types.h>
+[AC_TRY_RUN([#define _XOPEN_SOURCE=600
+#include <sys/types.h>
 #include <pthread.h>
 #include <stdlib.h>
 

libs/apr/include/arch/unix/apr_arch_proc_mutex.h

@@ -17,6 +17,10 @@
 #ifndef PROC_MUTEX_H
 #define PROC_MUTEX_H
 
+#ifndef _XOPEN_SOURCE
+#define _XOPEN_SOURCE=600
+#endif
+
 #include "apr.h"
 #include "apr_private.h"
 #include "apr_general.h"

libs/apr/include/arch/unix/apr_arch_thread_mutex.h

@@ -17,6 +17,10 @@
 #ifndef THREAD_MUTEX_H
 #define THREAD_MUTEX_H
 
+#ifndef _XOPEN_SOURCE
+#define _XOPEN_SOURCE=600
+#endif
+
 #include "apr.h"
 #include "apr_private.h"
 #include "apr_general.h"