From: khooyp <khooyp@e59a4935-1847-0410-ae03-e826735625c1>
Date: Wed, 11 Jan 2012 16:55:23 +0000 (+0000)
Subject: Conditionally enable -march=native, since it doesn't work in GCC on OS X.
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=65f23c87750dc188c794a1aa64d1ca38259bbc75;p=francis%2Fstp.git

Conditionally enable -march=native, since it doesn't work in GCC on OS X.

git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1496 e59a4935-1847-0410-ae03-e826735625c1
---

diff --git a/scripts/Makefile.common b/scripts/Makefile.common
index 17e8051..ee197e9 100644
--- a/scripts/Makefile.common
+++ b/scripts/Makefile.common
@@ -10,7 +10,13 @@
 
 -include $(TOP)/scripts/config.info
 
-OPTIMIZE      = -O3 -DNDEBUG -march=native -fomit-frame-pointer # Optimization
+# use -march=native if it works correctly (it's broken in GCC on OS X)
+ifeq ($(shell $(CXX) -march=native -E - < /dev/null >/dev/null 2>&1 && echo 1),1)
+    OPTIMIZE_MARCH_NATIVE = -march=native
+endif
+
+# Optimization
+OPTIMIZE      = -O3 -DNDEBUG -fomit-frame-pointer $(OPTIMIZE_MARCH_NATIVE)
 #OPTIMIZE      =  -O3 -g            # Debug
 
 # To enable 128-bit indices in the array propagators. Put the INDICES_128BITS