$OpenBSD$
--- configure.ac.orig	Fri Apr 25 19:48:14 2008
+++ configure.ac	Tue Nov  4 13:00:17 2008
@@ -110,6 +110,9 @@ then
 elif test `echo $target_os | sed "s/\(netbsd\).*/\1/"` = "netbsd"
 then
 	AC_SUBST([TARGET_OS],[netbsd])
+elif test `echo $target_os | sed "s/\(openbsd\).*/\1/"` = "openbsd"
+then
+	AC_SUBST([TARGET_OS],[openbsd])
 elif test `echo $target_os | sed "s/\(mingw32\).*/\1/"` = "mingw32"
 then
 	AC_SUBST([TARGET_OS],[mingw32])