From 19032be45e97ac4d7ca264f1ddece3d8d9d80e51 Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Fri, 17 Oct 2014 08:58:47 +0100
Subject: [PATCH] formula_cellar_checks: check exists before glob.

Closes Homebrew/homebrew#33242.
---
 Library/Homebrew/formula_cellar_checks.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Library/Homebrew/formula_cellar_checks.rb b/Library/Homebrew/formula_cellar_checks.rb
index 918301ac16..a5d9beda08 100644
--- a/Library/Homebrew/formula_cellar_checks.rb
+++ b/Library/Homebrew/formula_cellar_checks.rb
@@ -150,6 +150,7 @@ module FormulaCellarChecks
   private
 
   def relative_glob(dir, pattern)
+    return [] unless Dir.exist? dir
     Dir.chdir(dir) { Dir[pattern] }
   end
 end