From 3270fd2cd94e6ca637bbae5f2acfc9c1824d76e2 Mon Sep 17 00:00:00 2001
From: Jack Nagel
Date: Sat, 19 Jan 2013 20:45:57 -0600
Subject: ENV.with_build_environment

---
 Library/Homebrew/extend/ENV.rb | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'Library/Homebrew/extend')

diff --git a/Library/Homebrew/extend/ENV.rb b/Library/Homebrew/extend/ENV.rb
index 095d05b70..6ac5a0db2 100644
--- a/Library/Homebrew/extend/ENV.rb
+++ b/Library/Homebrew/extend/ENV.rb
@@ -438,6 +438,14 @@ class << ENV
     self['PATH'] = paths.unshift(*self['PATH'].split(":")).uniq.join(":")
   end
 
+  def with_build_environment
+    old_env = to_hash
+    setup_build_environment
+    yield
+  ensure
+    replace(old_env)
+  end
+
   def fortran
     fc_flag_vars = %w{FCFLAGS FFLAGS}
 
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