License ?

[kyrios123]

The COPYING file refers to the GPL-2.0 while in the header of most files it is the LGPL-2.0 that is mentioned.
Could you please clarify which license apply to mate-polkit (both, only the GPL or only the LGPL ?)

Also, for info the LGPL-2.0-or-later has been superseded by LGPL-2.1-or-later, so ideally it's better to refer to version 2.1 if you have to update something (source).

[WhyNotHugo]

COPYING is the LGPL:

mate-polkit/COPYING

Line 1 in 1c69f46

GNU LIBRARY GENERAL PUBLIC LICENSE

mate-polkit/COPYING

Lines 9 to 10 in 1c69f46

	[This is the first released version of the library GPL. It is
	numbered 2 because it goes with version 2 of the ordinary GPL.]

The licence itself clarifies that derivate work must be LGPLv2 or later:

mate-polkit/COPYING

Lines 455 to 458 in 1c69f46

	This library is free software; you can redistribute it and/or
	modify it under the terms of the GNU Library General Public
	License as published by the Free Software Foundation; either
	version 2 of the License, or (at your option) any later version.