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Message-Id: <1429637645-3353-1-git-send-email-armccurdy@gmail.com>
Date: Tue, 21 Apr 2015 10:34:05 -0700
From: Andre McCurdy <armccurdy@...il.com>
To: musl@...ts.openwall.com
Cc: Andre McCurdy <armccurdy@...il.com>
Subject: [PATCH] configure: check for -march and -mtune passed via CC
Some build environments pass -march and -mtune as part of CC, therefore
update configure to check both CC and CFLAGS before making the decision
to fall back to generic -march and -mtune options for x86.
Signed-off-by: Andre McCurdy <armccurdy@...il.com>
---
configure | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/configure b/configure
index e35c9b6..f325cda 100755
--- a/configure
+++ b/configure
@@ -391,10 +391,12 @@ tryflag CFLAGS_AUTO -Wa,--noexecstack
# extensions enabled by default. This is bad for making static binaries.
# We cheat and use i486 rather than i386 because i386 really does not
# work anyway (issues with atomic ops).
+# Some build environments pass -march and -mtune options via CC, so
+# check both CC and CFLAGS.
#
if test "$ARCH" = "i386" ; then
-fnmatch '-march=*|*\ -march=*' "$CFLAGS" || tryldflag CFLAGS_AUTO -march=i486
-fnmatch '-mtune=*|*\ -mtune=*' "$CFLAGS" || tryldflag CFLAGS_AUTO -mtune=generic
+fnmatch '-march=*|*\ -march=*' "$CC $CFLAGS" || tryldflag CFLAGS_AUTO -march=i486
+fnmatch '-mtune=*|*\ -mtune=*' "$CC $CFLAGS" || tryldflag CFLAGS_AUTO -mtune=generic
fi
#
--
1.9.1
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