GPL license partially applied

[Boskovits]

Dear Maintainer,

I have noticed that the GPL license requirements are only partially met on this codebase. As it is obvious that the intention was to license this work as GPL, I would like to point out a few issues:

• The codebase is missing a copy of the GPL, either as COPYING on LICENSE file in the root directory.
• The Makefile is missing a copyright notice and the license notice.
• The X11Exception.h file is missing a copyright notice.

The last item of this list seems to be an upstream problem. If it is so, please notify the upstream developer about the issue.

I am not sure about the Makefile, that might also be an upstream issue.

I am willing to create a pull request to add a LICENSE file, but I would like some feedback on the other two issues first.

For further information please see https://www.gnu.org/licenses/gpl-howto.html.

I'm looking forward to your feedback.

[nonpop]

The Makefile is from this repo so no problem with that. X11Exception.h is from the same (now apparetly unavailable) package as XKeyboard.{h,cpp}, which was GPL so should be no problem there either.