From 28de5a789129928f44647d31f31cffe7ac43b8ce Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Mon, 11 Mar 2013 00:50:01 +0100
Subject: configure: remove -fomit-frame-pointer and -ffast-math from CFLAGS

-fomit-frame-pointer is enabled by default with recent gcc and clang
compilers if -O2 is used. It also breaks debugging when optimization is
disabled, so it makes absolutely no sense to have -fomit-frame-pointer
explicitly in the CFLAGS.

Get rid of -ffast-math too. It's little more than cargo-culting, and
might actually break NaN handling and such things.
---
 configure | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'configure')

diff --git a/configure b/configure
index ed981bb21c..d2beb5fce2 100755
--- a/configure
+++ b/configure
@@ -1118,7 +1118,7 @@ cflag_check -pipe -I. && _pipe="-pipe" && echores "yes" || echores "no"
 # Checking for CFLAGS
 if test -z "$CFLAGS" ; then
   if test "$cc_vendor" = "intel" ; then
-    CFLAGS="$_opt $_debug $_pipe -fomit-frame-pointer"
+    CFLAGS="$_opt $_debug $_pipe"
     WARNFLAGS="-wd167 -wd556 -wd144"
   elif test "$cc_vendor" = "clang"; then
     CFLAGS="$_opt $_debug $_pipe"
@@ -1127,10 +1127,10 @@ if test -z "$CFLAGS" ; then
   elif test "$cc_vendor" != "gnu" ; then
     CFLAGS="$_opt $_debug $_pipe"
   else
-    CFLAGS="$_opt $_debug $_pipe -ffast-math -fomit-frame-pointer"
+    CFLAGS="$_opt $_debug $_pipe"
     WARNFLAGS="-Wall -Wno-switch -Wno-parentheses -Wpointer-arith -Wredundant-decls"
     ERRORFLAGS="-Werror-implicit-function-declaration"
-    extra_ldflags="$extra_ldflags -ffast-math"
+    extra_ldflags="$extra_ldflags"
   fi
 else
   warn_cflags=yes
-- 
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