Clarify license (GPL 3 vs GPL 2 or later)
The SPX headers say GPL-2.0-or-later
:
$ git grep License-Iden
src/main.c: * SPDX-License-Identifier: GPL-2.0-or-later
src/tecla-application.c: * SPDX-License-Identifier: GPL-2.0-or-later
src/tecla-application.h: * SPDX-License-Identifier: GPL-2.0-or-later
src/tecla-key.c: * SPDX-License-Identifier: GPL-2.0-or-later
src/tecla-key.h: * SPDX-License-Identifier: GPL-2.0-or-later
src/tecla-keymap-observer.c: * SPDX-License-Identifier: GPL-2.0-or-later
src/tecla-keymap-observer.h: * SPDX-License-Identifier: GPL-2.0-or-later
src/tecla-model.c: * SPDX-License-Identifier: GPL-2.0-or-later
src/tecla-model.h: * SPDX-License-Identifier: GPL-2.0-or-later
src/tecla-util.c: * SPDX-License-Identifier: GPL-2.0-or-later
src/tecla-util.h: * SPDX-License-Identifier: GPL-2.0-or-later
src/tecla-view.c: * SPDX-License-Identifier: GPL-2.0-or-later
src/tecla-view.h: * SPDX-License-Identifier: GPL-2.0-or-later
But the LICENSE
file is GPL 3:
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.