The boolean program is the graphical version, but can also so be run in the background using -silent option.
The boolean program is tested for the following platforms:
Boolean boolean_7_1.tgz 4 Meg bytes date: 14-9-2009 version: 7.1
kbool kbool_2_1.tgz 100k bytes date: 14-9-2009 version: 2.1

kbool is a standalone sample program. This program demonstrates the use of the boolean algorithm for all boolean operation (or, and, exor etc. + correction on polygons). It is meant to show how the algorithm needs to be integrated in other software.
It has no graphical interface, so portable without problems.

The kbool library is GPL licensed. But for commercial use in proprietary software contact copyright holder for more information on other licensing schemes.