From 0ede5f550366208e9cfc653be49c534b9a612e4a Mon Sep 17 00:00:00 2001
From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Fri, 11 Jun 2010 18:49:06 +0200
Subject: [PATCH] Tests: make sure that $DIFF is non-empty

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 t/test-lib.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/t/test-lib.sh b/t/test-lib.sh
index 1349a989ee..fb8fbd8d70 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -837,6 +837,8 @@ export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_CONFIG_NOGLOB
 
 . ../GIT-BUILD-OPTIONS
 
+DIFF="${DIFF:-diff}"
+
 if test -z "$GIT_TEST_CMP"
 then
 	if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"