include gnu source define

diff --git a/dmsd.c b/dmsd.c
index b8f1dad..6f0a773 100644 (file)
--- a/dmsd.c
+++ b/dmsd.c
@@ -5,6 +5,7 @@
  *
  */
 
+#define _GNU_SOURCE
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>