key: autoconf-macro-exception short_name: Autoconf macro exception name: Autoconf macro exception category: Copyleft Limited owner: Free Software Foundation (FSF) homepage_url: https://www.gnu.org/software/autoconf-archive/ notes: | this is a variant of the Autonconf exception to the GPL 3.0 used in GNU Config config.guess and config.sub is_exception: yes spdx_license_key: Autoconf-exception-macro other_spdx_license_keys: - LicenseRef-scancode-autoconf-macro-exception other_urls: - https://github.com/freedesktop/xorg-macros/blob/39f07f7db58ebbf3dcb64a2bf9098ed5cf3d1223/xorg-macros.m4.in - https://www.gnu.org/software/autoconf-archive/ax_pthread.html - https://launchpad.net/ubuntu/precise/+source/xmltooling/+copyright text: | As a special exception, the respective Autoconf Macro's copyright owner gives unlimited permission to copy, distribute and modify the configure scripts that are the output of Autoconf when processing the Macro. You need not follow the terms of the GNU General Public License when using or distributing such scripts, even though portions of the text of the Macro appear in them. The GNU General Public License (GPL) does govern all other use of the material that constitutes the Autoconf Macro. This special exception to the GPL applies to versions of the Autoconf Macro released by the Autoconf Macro Archive. When you make and distribute a modified version of the Autoconf Macro, you may extend this special exception to the GPL to apply to your modified version as well.