diff -r 195e24ffa71a -r 28045eab1400 components/bison/patches/tests.patch
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/bison/patches/tests.patch	Thu Jan 14 10:17:27 2016 -0800
@@ -0,0 +1,10 @@
+the tests really prefer bash.
+
+--- bison-3.0.4/examples/test.orig	Tue Oct 20 10:07:20 2015
++++ bison-3.0.4/examples/test	Tue Oct 20 10:07:25 2015
+@@ -1,4 +1,4 @@
+-#! /bin/sh
++#! /bin/bash
+ 
+ # Copyright (C) 2005-2015 Free Software Foundation, Inc.
+ #