From 068861a927f204b4cbb9479d9c13697eeb802821 Mon Sep 17 00:00:00 2001
From: Zhang Xianyi <xianyi@iscas.ac.cn>
Date: Fri, 10 Aug 2012 14:36:26 +0800
Subject: [PATCH] Refs #133. Users can set COMMON_OPT flag to control CFLAGS
 and FFLAGS.

---
 Makefile.rule   | 15 ++++++---------
 Makefile.system |  9 +++++++++
 2 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/Makefile.rule b/Makefile.rule
index 85abf584b0..b73f87d683 100644
--- a/Makefile.rule
+++ b/Makefile.rule
@@ -108,19 +108,16 @@ VERSION = 0.2.2
 # The installation directory.
 # PREFIX = /opt/OpenBLAS
 
-# Common Optimization Flag; -O2 is enough.
-# DEBUG = 1
-
-ifeq ($(DEBUG), 1)
-COMMON_OPT += -g
-# -DDEBUG
-else
-COMMON_OPT += -O2
-endif
+# Common Optimization Flag; 
+# The default -O2 is enough.
+# COMMON_OPT = -O2
 
 # Profiling flags
 COMMON_PROF = -pg
 
+# Build Debug version
+# DEBUG = 1
+
 #
 #  End of user configuration 
 #
diff --git a/Makefile.system b/Makefile.system
index 63d3577a7a..b2180f30d6 100644
--- a/Makefile.system
+++ b/Makefile.system
@@ -687,6 +687,15 @@ AWK	= awk
 REVISION = -r$(VERSION)
 MAJOR_VERSION = $(word 1,$(subst ., ,$(VERSION)))
 
+ifeq ($(DEBUG), 1)
+COMMON_OPT += -g
+endif
+
+ifndef COMMON_OPT
+COMMON_OPT = -O2
+endif
+
+
 CFLAGS     = $(COMMON_OPT) $(CCOMMON_OPT) -I$(TOPDIR)
 PFLAGS     = $(COMMON_OPT) $(CCOMMON_OPT) -I$(TOPDIR) -DPROFILE $(COMMON_PROF)