From 4fda9d1f7387eac08fa1e62b6978b5c2ad3343f2 Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 5 May 2009 02:33:02 +0000
Subject: [PATCH] Fix: raised error on tool/ifchange.

* tool/ifchange: Fix: arguments which begin with minus sign may
  parsed as options.  Because of older systems, don't use --
  but use parentheses.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@23347 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog     | 6 ++++++
 tool/ifchange | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 52c40c5f1e..bcd5ed784b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Tue May  5 11:29:07 2009  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* tool/ifchange: Fix: arguments which begin with minus sign may
+	  parsed as options.  Because of older systems, don't use --
+	  but use parentheses.
+
 Tue May  5 10:42:28 2009  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* ext/json: Update to JSON 1.1.4.
diff --git a/tool/ifchange b/tool/ifchange
index 7038615d43..177ce7340b 100755
--- a/tool/ifchange
+++ b/tool/ifchange
@@ -8,7 +8,7 @@ until [ "$0" = 0 ]; do
 	    timestamp=.
 	    ;;
 	--timestamp=*)
-	    timestamp=`expr "$1" : '[^=]*=\(.*\)'`
+	    timestamp=`expr \( "$1" : '[^=]*=\(.*\)' \)`
 	    ;;
 	*)
 	    break