$OpenBSD: patch-lib_blkid_getsize_c,v 1.2 2013/06/21 22:35:51 sthen Exp $
--- lib/blkid/getsize.c.orig	Fri Nov 30 02:40:18 2012
+++ lib/blkid/getsize.c	Wed Jun 19 14:25:04 2013
@@ -26,6 +26,7 @@
 #include <fcntl.h>
 #ifdef HAVE_SYS_IOCTL_H
 #include <sys/ioctl.h>
+#include <sys/dkio.h>
 #endif
 #ifdef HAVE_LINUX_FD_H
 #include <linux/fd.h>
