--- gptfdisk-0.8.1/diskio-unix.cc~      2011-10-01 23:52:33.000000000 +0200
+++ gptfdisk-0.8.1/diskio-unix.cc       2012-01-05 10:14:49.440260712 +0100
@@ -19,6 +19,7 @@
 #include <string.h>
 #include <string>
 #include <stdint.h>
+#include <unistd.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <sys/stat.h>