The following should be untarred into the dib directory:
gtk-2.6.10-rev-a-installer.tar.gz
gtk-dev-2.6.10-rev-a.tar.gz
libusb-win32-device-bin-0.1.12.2.tar.gz

Also, Inno Setup 5.3.6 should be installed to Wine's "drive C".

The code is known to compile with mingw32 3.4.5.20060117.1.dfsg-2.
