From: Andre McCurdy <armccurdy@gmail.com>
Date: Tue, 21 Apr 2015 17:34:05 +0000 (-0700)
Subject: configure: check for -march and -mtune passed via CC
X-Git-Tag: v1.1.9~37
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=a6274a1971b7aa1d12fdce3d040f847539a71049;p=oweals%2Fmusl.git

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@gmail.com>
---

diff --git a/configure b/configure
index e35c9b63..f325cda3 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
 
 #