From: mquinson <mquinson@48e7efb5-ca39-0410-a469-dd3cf9ba447f>
Date: Sat, 11 Apr 2009 23:12:05 +0000 (+0000)
Subject: do not use -ffast-math, it sometimes breaks lagrangian computations on 64bits
X-Git-Tag: v3.3~10
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/6a346cc72dfaebfb747f929747840877636982d6

do not use -ffast-math, it sometimes breaks lagrangian computations on 64bits


git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@6236 48e7efb5-ca39-0410-a469-dd3cf9ba447f
---

diff --git a/acmacro/compiler-flags.m4 b/acmacro/compiler-flags.m4
index 289fa44345..8a585c9200 100644
--- a/acmacro/compiler-flags.m4
+++ b/acmacro/compiler-flags.m4
@@ -72,7 +72,8 @@ AC_DEFUN([SG_COMPILE_FLAGS],[
         *-O*) ;;
         *) optCFLAGS="$optCFLAGS -O3" ;;
         esac
-        optCFLAGS="$optCFLAGS -finline-functions -ffast-math -funroll-loops -fno-strict-aliasing"
+        optCFLAGS="$optCFLAGS -finline-functions -funroll-loops -fno-strict-aliasing"
+	# now that surf uses advanced maths in lagrangian, -ffast-math do break things
       
         GCC_VER=`gcc --version | head -n 1 | sed 's/^[^0-9]*\([^ ]*\).*$/\1/'`
         GCC_VER_MAJ=`echo $GCC_VER | sed 's/^\(.\).*$/\1/'`