From 07112c91bcd12aca87d47e29a6d5a13ce609c08a Mon Sep 17 00:00:00 2001
From: Andrey Mazo <mazo@iitp.ru>
Date: Tue, 27 Oct 2009 13:56:38 +0300
Subject: [PATCH] omit -march=native for <gcc-4.2; pass -fomit-frame-pointer
 and -march=native only to gcc and icc.

---
 wscript | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/wscript b/wscript
index f816bfa22..ad147f8cf 100644
--- a/wscript
+++ b/wscript
@@ -282,13 +282,14 @@ def configure(conf):
         env.append_value('CXXDEFINES', 'NS3_ASSERT_ENABLE')
         env.append_value('CXXDEFINES', 'NS3_LOG_ENABLE')
 
-    if Options.options.build_profile == 'release': 
-        env.append_value('CXXFLAGS', '-fomit-frame-pointer') 
-        env.append_value('CXXFLAGS', '-march=native') 
-
     env['PLATFORM'] = sys.platform
 
     if conf.env['CXX_NAME'] in ['gcc', 'icc']:
+        if Options.options.build_profile == 'release': 
+            env.append_value('CXXFLAGS', '-fomit-frame-pointer') 
+            if conf.check_compilation_flag('-march=native'):
+                env.append_value('CXXFLAGS', '-march=native') 
+
         if sys.platform == 'win32':
             env.append_value("LINKFLAGS", "-Wl,--enable-runtime-pseudo-reloc")
         elif sys.platform == 'cygwin':