$OpenBSD: patch-config__arch-n-opsys,v 1.4 2013/02/15 12:06:11 sthen Exp $
--- config/_arch-n-opsys.orig	Sat Jul 28 07:32:38 2012
+++ config/_arch-n-opsys	Tue Feb 12 23:18:58 2013
@@ -1,4 +1,5 @@
 #!@SHELL@
+[ -z "$SMLNJ_HOME" ] && SMLNJ_HOME=${TRUEPREFIX}/smlnj
 #
 # .arch-n-opsys  -- get architecture and system info
 #
