1 files changed, 1 insertions, 1 deletions
diff --git a/Library/ENV/4.3/cc b/Library/ENV/4.3/cc
index 92b09a48c..59a52b02d 100755
--- a/Library/ENV/4.3/cc
+++ b/Library/ENV/4.3/cc
@@ -189,7 +189,7 @@ class Cmd
   end
   def archflags
     args = []
-    ENV['HOMEBREW_ARCHS'].split(',').each { |a| args << "-arch" << a } if cccfg? 'u'
+    args.concat ENV['HOMEBREW_ARCHFLAGS'].split(' ') if cccfg? 'u'
     args
   end
   def syslibpath