Index: boost-jam-3.1.17/build.jam
--- boost-jam-3.1.17/build.jam.orig	2007-12-03 04:27:54 +0100
+++ boost-jam-3.1.17/build.jam	2008-08-06 09:39:12 +0200
@@ -176,7 +176,7 @@
 ## GCC 2.x, 3.x, 4.x
 toolset gcc gcc : "-o " : -D
     : -pedantic -fno-strict-aliasing
-    [ opt --release : [ opt --symbols : -g : -s ] -O3 ]
+    [ opt --release : [ opt --symbols : -g : -s ] -O0 ]
     [ opt --debug : -g -O0 -fno-inline ]
     -I$(--python-include) -I$(--extra-include) -Wno-long-long
     : -L$(--python-lib[1]) -l$(--python-lib[2]) ;
Index: boost-jam-3.1.17/build.sh
--- boost-jam-3.1.17/build.sh.orig	2007-12-03 04:27:54 +0100
+++ boost-jam-3.1.17/build.sh	2008-08-06 09:38:28 +0200
@@ -129,7 +129,7 @@
     ;;
     
     gcc)
-    BOOST_JAM_CC=gcc
+    BOOST_JAM_CC="gcc -O0"
     ;;
     
     darwin)