--- btrfs-progs-unstable/btrfsck.c.ark	2010-06-18 22:52:52.592535586 +0200
+++ btrfs-progs-unstable/btrfsck.c	2010-06-18 22:52:59.540417164 +0200
@@ -18,6 +18,7 @@
 
 #define _XOPEN_SOURCE 500
 #define _GNU_SOURCE 1
+#include <sys/stat.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <fcntl.h>