After installing the MinGW-3.2.0-rc-3.exe package into
the default location (c:\MinGW), I can see it installed
some unneeded files:
Reason: GCC 3.4.2 is included with this release, so the
3.2.3 headers are unneeded.
Reason: Empty dir
Hope you can remove these files from the setup script
for the next MinGW release (to save up a bit of space).