From 2121b8a44f086f6fb8aed98102379e7de9a4a5f1 Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Tue, 3 Jul 2012 23:53:05 -0400
Subject: configure: only use -ffloat-store on i386

this option is expensive and only used on old gcc's that lack
-fexcess-precision=standed, but it's not needed on non-i386 archs
where floating point does not have excess precision anyway.

if musl ever supports m68k, i think it will need to be special-cased
too. i'm not aware of any other archs with excess precision.
---
 configure | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'configure')

diff --git a/configure b/configure
index 7e5a8dfb..ae05b396 100755
--- a/configure
+++ b/configure
@@ -209,7 +209,7 @@ tryflag CFLAGS_C99FSE -nostdinc
 tryflag CFLAGS_C99FSE -ffreestanding \
 || tryflag CFLAGS_C99FSE -fno-builtin
 tryflag CFLAGS_C99FSE -fexcess-precision=standard \
-|| tryflag CFLAGS_C99FSE -ffloat-store
+|| { test "$ARCH" = i386 && tryflag CFLAGS_C99FSE -ffloat-store ; }
 tryflag CFLAGS_C99FSE -frounding-math
 
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