From bfda554d30ff96b0ecc386e910efee751c60be9b Mon Sep 17 00:00:00 2001
From: Max Howell
Date: Wed, 24 Aug 2011 00:35:45 +0100
Subject: Use -march=native when we don't otherwise know

I believe this works nowadays. When I created Homebrew originally, it did nothing. Hence all the other logic.
---
 Library/Homebrew/extend/ENV.rb | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'Library/Homebrew')

diff --git a/Library/Homebrew/extend/ENV.rb b/Library/Homebrew/extend/ENV.rb
index e1898a569..931f69271 100644
--- a/Library/Homebrew/extend/ENV.rb
+++ b/Library/Homebrew/extend/ENV.rb
@@ -59,6 +59,10 @@ module HomebrewEnvExtension
         cflags << "-march=core2"
       when :core
         cflags<<"-march=prescott"<<"-mfpmath=sse"
+      else
+        # note that this didn't work on older versions of Xcode's gcc
+        # and maybe still doesn't. But it's at least not worse than nothing.
+        cflags << "-march=native"
       end
       # gcc doesn't auto add msse4 or above (based on march flag) yet
       case Hardware.intel_family
-- 
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