1) Introducing support for 32/64-bit variants of the patch files 2) Fix bug in fix_epoc32_linux.pl whereby changes to the gcc -preinclude patch file were not applied if already existed. 3) Extending weed_backups.pl to weed the epoc32 tree as well as the package dir 4) Make build_target.pl return non-0 if build has warnings 5) Make build_all.pl fail a target if it has warnings

#!/bin/bash

for dir in . cpp-raptor cygwin-1.5.25 mingw-5.1.4 python-2.5.2; do
	echo testing exports.inf in $dir
	(cd $dir; ./exports.sh2; sort exports.inf > t1; sort exports.inf2 > t2; diff t1 t2)
done