$OpenBSD: patch-waf-light,v 1.1 2009/01/26 19:47:12 landry Exp $

trick waf-light to make it found installed version

--- waf-light.orig	Mon Dec 22 00:31:57 2008
+++ waf-light	Sun Jan 18 23:44:38 2009
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!${MODPY_BIN}
 # encoding: utf-8
 # Thomas Nagy, 2005-2008
 
@@ -102,16 +102,7 @@ def find_lib():
 		if w: return w
 		err("waf-light requires wafadmin -> export WAFDIR=/folder")
 
-	dir = "/lib/waf-%s-%s/" % (VERSION, REVISION)
-	for i in [INSTALL,'/usr','/usr/local','/opt']:
-		w = test(i+dir)
-		if w: return w
-
-	#waf-local
-	s = '.waf-%s-%s'
-	if sys.platform == 'win32': s = s[1:]
-	dir = join(base, s % (VERSION, REVISION))
-	w = test(dir)
+	w = test("${MODPY_SITEPKG}")
 	if w: return w
 
 	#unpack