From c42a6b6802456c47ac3e408723e8b303a5fb2ba4 Mon Sep 17 00:00:00 2001
From: Adam Vandenberg <flangy@gmail.com>
Date: Wed, 8 Feb 2012 21:08:18 -0800
Subject: [PATCH] Pathname: support .tar.Z extension

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

diff --git a/Library/Homebrew/extend/pathname.rb b/Library/Homebrew/extend/pathname.rb
index 1562bfbcd7..6dcec05dd0 100644
--- a/Library/Homebrew/extend/pathname.rb
+++ b/Library/Homebrew/extend/pathname.rb
@@ -64,7 +64,7 @@ class Pathname
 
   # extended to support common double extensions
   def extname
-    /(\.(tar|cpio)\.(gz|bz2|xz))$/.match to_s
+    /(\.(tar|cpio)\.(gz|bz2|xz|Z))$/.match to_s
     return $1 if $1
     return File.extname(to_s)
   end