From 1d0515c1d310e18a1314d29cb6df3b5cb7b8772c Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Wed, 6 Nov 2013 18:34:03 +0000
Subject: [PATCH] resource: only unpack to target if it exists.

---
 Library/Homebrew/resource.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Library/Homebrew/resource.rb b/Library/Homebrew/resource.rb
index b72d552543..59746cc679 100644
--- a/Library/Homebrew/resource.rb
+++ b/Library/Homebrew/resource.rb
@@ -61,7 +61,7 @@ class Resource
       downloader.stage
       if block_given?
         yield self
-      else
+      elsif target
         target.install Dir['*']
       end
     end