1 files changed, 2 insertions, 0 deletions
diff --git a/src/dump.c b/src/dump.c
index 9fc0a86..9ff18be 100644
--- a/src/dump.c
+++ b/src/dump.c
@@ -68,7 +68,9 @@ __rf_extract_exit:
 /*
  * This function was covardly copied from nanddump.c @ mtd-utils-20060907
  */
+#ifndef _GNU_SOURCE
 #define _GNU_SOURCE
+#endif
 #include <ctype.h>
 #include <errno.h>
 #include <fcntl.h>