@@ -12,10 +12,12 @@
  * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
  * file.
  */
 
 #include "config.h"
+
+#define _XOPEN_SOURCE_EXTENDED
 
 #ifdef OF_NINTENDO_3DS
 # include <malloc.h>  /* For memalign() */
 #endif