1 files changed, 8 insertions, 0 deletions
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}