$OpenBSD$
--- process.c.orig	Tue Apr 14 04:44:40 2009
+++ process.c	Tue Apr 14 04:44:49 2009
@@ -86,7 +86,7 @@ static VALUE S_Tms;
 #define __MacOS_X__ 1
 #endif
 
-#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__)
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__FabBSD__) || defined(__bsdi__)
 #define HAVE_44BSD_SETUID 1
 #define HAVE_44BSD_SETGID 1
 #endif