+++ /dev/null
---- a/vmcore-dmesg/vmcore-dmesg.c
-+++ b/vmcore-dmesg/vmcore-dmesg.c
-@@ -1,6 +1,8 @@
- #define _XOPEN_SOURCE 600
- #define _LARGEFILE_SOURCE 1
- #define _FILE_OFFSET_BITS 64
-+#define _GNU_SOURCE
-+
- #include <endian.h>
- #include <byteswap.h>
- #include <stdio.h>