CI: make reuse pass for release branches

.gitlab-ci.yml

@@ -24,6 +24,8 @@ Check licenses:
     - python -m pip install --upgrade pip
     - python -m pip install reuse
     - reuse --version
+    # Fetch extra licenses for automatically generated Autotools files:
+    - test ! -f ./configure || reuse download --all
   script:
     - reuse lint
   tags:

REUSE.toml

@@ -26,3 +26,51 @@ SPDX-License-Identifier = "CC-BY-4.0"
 path = "contrib/**.patch"
 SPDX-FileCopyrightText = "2024 Thomas Jahns <jahns@dkrz.de>"
 SPDX-License-Identifier = "GPL-2.0-or-later WITH Libtool-exception"
+
+# Automatically generated Autotools files to be found in the release branches:
+
+[[annotations]]
+path = ["**/Makefile.in"]
+SPDX-License-Identifier = "FSFULLRWD"
+
+[[annotations]]
+path = [
+  "aclocal.m4",
+  "m4/libtool.m4",
+  "m4/ltoptions.m4",
+  "m4/ltsugar.m4",
+  "m4/ltversion.m4",
+  "m4/lt~obsolete.m4",
+]
+SPDX-License-Identifier = "FSFULLR"
+
+[[annotations]]
+path = [
+  "config/compile",
+  "config/depcomp",
+  "config/missing",
+  "config/py-compile",
+  "config/test-driver",
+]
+SPDX-License-Identifier = "GPL-2.0-or-later WITH Autoconf-exception-generic"
+
+[[annotations]]
+path = ["config/config.guess", "config/config.sub"]
+SPDX-License-Identifier = "GPL-3.0-or-later WITH Autoconf-exception-generic-3.0"
+
+[[annotations]]
+path = ["config/install-sh"]
+SPDX-License-Identifier = "X11-distribute-modifications-variant"
+
+[[annotations]]
+path = ["config/ltmain.sh"]
+SPDX-License-Identifier = "GPL-2.0-or-later WITH Libtool-exception"
+
+[[annotations]]
+path = ["configure"]
+SPDX-License-Identifier = "FSFUL"
+
+[[annotations]]
+path = ["config/config.h.in"]
+SPDX-FileCopyrightText = "2013-2024 MPI-M, Luis Kornblueh, Rahul Sinha and DWD, Florian Prill. All rights reserved."
+SPDX-License-Identifier = "CC0-1.0"