diff --git a/lib_acl/StdAfx.h b/lib_acl/StdAfx.h
index 359eb620b..178af4f4c 100644
--- a/lib_acl/StdAfx.h
+++ b/lib_acl/StdAfx.h
@@ -30,7 +30,9 @@ int acl_secure_vsnprintf(char *buf, size_t size, const char *fmt, va_list ap);
 #  ifndef  _GNU_SOURCE
 #   define _GNU_SOURCE
 #  endif
-
+#  ifndef __USE_UNIX98
+#   define __USE_UNIX98
+#  endif
 #  include <stdio.h>
 #  include <stdlib.h>
 #  include <unistd.h>
diff --git a/lib_acl/src/stdlib/acl_mylog.c b/lib_acl/src/stdlib/acl_mylog.c
index 72b77ad2e..8e1e6031e 100644
--- a/lib_acl/src/stdlib/acl_mylog.c
+++ b/lib_acl/src/stdlib/acl_mylog.c
@@ -18,6 +18,12 @@
 #elif	defined(ACL_UNIX)
 #include <stdlib.h>
 #include <unistd.h>
+#ifndef _GNU_SOURCE 
+#define _GNU_SOURCE
+#endif
+#ifndef __USE_UNIX98
+# define __USE_UNIX98
+#endif
 #include <pthread.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -113,7 +119,7 @@ static void init_log_mutex(acl_pthread_mutex_t *lock)
 	pthread_mutexattr_t attr;
 
 	n1 = pthread_mutexattr_init(&attr);
-	n2 = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+	n2 = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
 	thread_mutex_init(lock, !n1 && !n2 ? &attr : NULL);
 #else
 	thread_mutex_init(lock, NULL);
diff --git a/lib_acl/src/stdlib/memory/acl_mempool.c b/lib_acl/src/stdlib/memory/acl_mempool.c
index abbd7ea53..f3f1a85e6 100644
--- a/lib_acl/src/stdlib/memory/acl_mempool.c
+++ b/lib_acl/src/stdlib/memory/acl_mempool.c
@@ -20,6 +20,9 @@
 # ifndef  _GNU_SOURCE
 #  define _GNU_SOURCE
 # endif
+# ifndef __USE_UNIX98
+#  define __USE_UNIX98
+# endif
 # include <pthread.h>
 #endif