Subject: CS DOOM
Date: Tue, 25 Jul 2000 14:44:35 -0500
From: johnc@idsoftware.com (John Carmack)
To: sergeym@mail.infotel.ru

I got a complaint that you were violating the GPL by not releasing code for
CS DOOM.  Please take a moment to clear up your position.

If your code is based off of the original non-GPL code release, and you
haven't incorporated anyone else's code that is released under the GPL, you
have the right to not release the source.

Even if that is the case, I would still strongly encourage you to convert
to the GPL and make simultanious source and binary releases.  I had to
fight a significant battle to release the source code for people to share,
and it feels a bit out of line for projects building on that to not do the
same.

I'm glad someone finally made a client/server version of DOOM!  I expected
it to be one of the first projects undertaken, and I'm surprised it didn't
happen sooner.

You should rightly suspect that any mail from me might be forged, so feel
free to respond with questions for verification.

John Carmack