1) fix_tools_exports.pl need only be run on Windows hosts; was run unnecessarily on Linux too.
2) Need to export modload.pm on Linux as well as Windows hosts.
# *** Change this file if and only if you are rebuilding from a new
# upstream baseline ***
# This package was branched from
# http://developer.symbian.org/oss/MCL/sftools/dev/build)
# at Mercurial revision:
0f5e3a7fb6af