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openmopac / mopac

Molecular Orbital PACkage
http://openmopac.net
GNU Lesser General Public License v3.0
115 stars 31 forks source link

Clarify license #117

Closed aizvorski closed 1 year ago

aizvorski commented 1 year ago

I'd like to confirm whether the whole repository is licensed under LGPL.

There are both "COPYING" and "COPYING.lesser" files, which would seem to suggest some parts are GPL and some LGPL.

A quick search through the F90 files shows all of them have a "MOPAC is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License" and "Copyright (C) 2021, Virginia Polytechnic Institute and State University" header; except for one file getpdb.F90 which has no header (probably omitted by accided).

If the whole repository is LGPL, could we delete the file "COPYING", and add a note in README.md which also says the license as a whole is LGPL?

godotalgorithm commented 1 year ago

Yes, MOPAC is wholly licensed under LGPL, and I can add a note to the main README to that effect. According to the instructions on the GNU website, both the COPYING (GPL) and COPYING.lesser (LGPL) files should be included in LGPL-licensed software because the LGPL license is an addendum to the GPL license rather than a self-contained legal document.

Thanks for catching the missing header, I'll fix that too.

godotalgorithm commented 1 year ago

Updates to the main README file should now resolve any license ambiguity.