So it seems they might have started with the non GPL version. Can they legally GPL the whole source themselves?* Source-related:
Added GPL headers to QC files and GNU license text to URQP package
Which really doesnt matter if you take their changelog as a bug report and implement your own fix.
Though, how is taking their additions to a 1.06 base any worse than taking original 1.06 differences and adding it to 1.01?
The only ones who actually would have legal gripes would be idsoftware, and they basically have stated it to be GPL.
Heck the hipnotic SDK has
OOF! So, all that's out the window too!Copyright (c)1996 Hipnotic Interactive, Inc.
All rights reserved.
Do not distribute.