--- gpart-0.1h/src/l64seek.c
+++ gpart-0.1h-working/src/l64seek.c
@@ -16,6 +16,7 @@
 
 #include "l64seek.h"
 
+#include <errno.h>
 
 #define OSTACKLEN	16
 static struct
--- gpart-0.1h/src/disku.c
+++ gpart-0.1h-working/src/disku.c
@@ -20,6 +20,7 @@
 #include <string.h>
 #include <sys/ioctl.h>
 #include "gpart.h"
+#include <errno.h>
 
 #if defined(__linux__)
 #include <sys/mount.h>