From: mquinson <mquinson@48e7efb5-ca39-0410-a469-dd3cf9ba447f>
Date: Tue, 17 Jul 2007 14:12:08 +0000 (+0000)
Subject: disable buggy option for gcc 3.x, but use it for gcc 4.x since it was fixed since... 
X-Git-Tag: v3.3~1525
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/2ef44ad1ef520a0d1ade150a0dfd1e8f6d60807f

disable buggy option for gcc 3.x, but use it for gcc 4.x since it was fixed since then


git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@3835 48e7efb5-ca39-0410-a469-dd3cf9ba447f
---

diff --git a/acmacro/compiler-flags.m4 b/acmacro/compiler-flags.m4
index 335791869a..2189861f07 100644
--- a/acmacro/compiler-flags.m4
+++ b/acmacro/compiler-flags.m4
@@ -72,9 +72,10 @@ AC_DEFUN([SG_COMPILE_FLAGS],[
       
         GCC_VER=`gcc --version | head -n 1 | sed 's/^[^0-9]*\([^ ]*\).*$/\1/'`
         GCC_VER_MAJ=`echo $GCC_VER | sed 's/^\(.\).*$/\1/'`
-        if test "x$target_cpu" = "xpowerpc" && test "x$GCC_VER_MAJ" != "x2" ; then
-          # avoid gcc bug #12828, which is fixed in 3.4.0, but this version
-          # isn't propagated enough to desserve an extra check
+        if test "x$target_cpu" = "xpowerpc" && test "x$GCC_VER_MAJ" == "x3" ; then
+          # avoid gcc bug #12828, which apeared in 3.x branch and is fixed in 3.4.0
+          # but the check would be too complicated to get 3.4. 
+	  # Instead, rule out any 3.x compiler.
           
           # Note that the flag didn't exist before gcc 3.0
           optCFLAGS="$optCFLAGS -fno-loop-optimize"