From 9222386377e02bea5b2d18259ff2a45464776fda Mon Sep 17 00:00:00 2001
From: Jason Ish <jason.ish@endace.com>
Date: Tue, 22 Jun 2010 00:42:26 -0600
Subject: [PATCH] On Mac, don't use -march=native by default unless using gcc
 >= 4.3.

---
 configure.in | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/configure.in b/configure.in
index d452411082..30ba444de6 100644
--- a/configure.in
+++ b/configure.in
@@ -184,10 +184,22 @@ AC_INIT(configure.in)
     AC_ARG_ENABLE(gccmarch_native,
            AS_HELP_STRING([--enable-gccmarch-native], [Enable gcc march=native gcc 4.2 and later only]),,[enable_gccmarch_native=yes])
     AS_IF([test "x$enable_gccmarch_native" = "xyes"], [
-        if test "$gccvernum" -ge "402"; then
-                dnl gcc 4.2 or later
-                CFLAGS="$CFLAGS -march=native"
-        fi
+        case $host in
+	    *darwin*|*Darwin*)
+		if test "$gccvernum" -ge "403"; then
+                    dnl gcc 4.3 or later
+                    CFLAGS="$CFLAGS -march=native"
+		else
+		    enable_gccmarch_native=no
+		fi
+		;;
+	    *)
+		if test "$gccvernum" -ge "402"; then
+                    dnl gcc 4.2 or later
+                    CFLAGS="$CFLAGS -march=native"
+		fi
+		;;
+	esac
     ])
 
 #libpcre