File stan-0.4-optflags.patch of Package stan

Index: configure.in
===================================================================
--- configure.in.orig	2003-12-10 21:48:21.000000000 +0100
+++ configure.in	2008-05-05 01:47:42.000000000 +0200
@@ -12,7 +12,7 @@ AC_C_BIGENDIAN
 
 if test "x$GCC" = "xyes" 
 then
-   CFLAGS="-Wall -O3"
+   AM_CFLAGS="@CFLAGS@ -Wall"
 fi
 
 dnl Checks for libraries.