dont redefine _GNU_SOURCE

diff --git a/test/signal/signal.c b/test/signal/signal.c
index 3b282e8..500eefb 100644 (file)
--- a/test/signal/signal.c
+++ b/test/signal/signal.c
@@ -23,7 +23,9 @@
  */
 
 
-#define _GNU_SOURCE
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE
+#endif
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>