From 9427704176f3c877484fa3d66b2b272455b4225f Mon Sep 17 00:00:00 2001
From: Jack Nagel
Date: Thu, 13 Jun 2013 19:03:31 -0500
Subject: Use ||= instead of unless

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

(limited to 'Library')

diff --git a/Library/Homebrew/extend/ENV.rb b/Library/Homebrew/extend/ENV.rb
index 5d20db777..4323b829f 100644
--- a/Library/Homebrew/extend/ENV.rb
+++ b/Library/Homebrew/extend/ENV.rb
@@ -457,7 +457,7 @@ class << ENV
     if self['FC']
       ohai "Building with an alternative Fortran compiler"
       puts "This is unsupported."
-      self['F77'] = self['FC'] unless self['F77']
+      self['F77'] ||= self['FC']
 
       if ARGV.include? '--default-fortran-flags'
         flags_to_set = []
-- 
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