Thanks are due to the AIAI for being willing to release wxWindows into the public domain, and to my wife Harriet Smart for her patience while I worked on wxWindows at weekends.
The UseNet has been an essential prop when coming up against tricky XView, Motif and Windows 3.1 problems. Thanks to those who answered my queries or submitted bug fixes and enhancements; wxWindows is very much a team effort (although the bugs are mine!). In particular I would like to mention: Jamshid Afshar, Patrick Albert, C. Buckley, Robin Corbet, Harco de Hilster, Josep Fortiana, Torsten Liermann, Tatu Minnisto, Ian Perrigo, Giordano Pezzoli, Petr Smilauer, Neil Smith, Kari Systa, Jyrki Tuomi.
I also acknowledge the author of XFIG, the excellent UNIX drawing tool, from the source of which I have pinched some spline drawing code and a few cursor definitions. His copyright is included below.
Xfig2.1 is copyright (c) 1985 by Supoj Sutanthavibul. Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of M.I.T. not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. M.I.T. makes no representations about the suitability of this software for any purpose. It is provided "as is'' without express or implied warranty.
wxCLIPS builds on NASA's CLIPS expert system shell, a paradigm of portability and a wonderful piece of free software.