Properly handle libyaml bundling

LICENSE-libyaml

@@ -0,0 +1,19 @@
+Copyright (c) 2006 Kirill Simonov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

python-ruamel-yaml-clib.spec

@@ -8,11 +8,14 @@ Summary:        C version of reader, parser and emitter for ruamel.yaml derived
 # SPDX
 License:        MIT
 URL:            https://sourceforge.net/projects/ruamel-yaml-clib
-Source:         https://sourceforge.net/code-snapshots/hg/r/ru/ruamel-yaml-clib/code/ruamel-yaml-clib-code-%{commit}.zip
+Source0:        https://sourceforge.net/code-snapshots/hg/r/ru/ruamel-yaml-clib/code/ruamel-yaml-clib-code-%{commit}.zip
+# Include license file for bundled libyaml
+# https://sourceforge.net/p/ruamel-yaml-clib/tickets/16/
+# This should be fixed upstream in a future ruamel.yaml.clib release >0.2.7
+Source1:        https://github.com/yaml/libyaml/raw/0.1.7/LICENSE#/LICENSE-libyaml
 Patch:          fix-typecasts-s390x.patch
 
 BuildRequires:  gcc
-BuildRequires:  libyaml-devel
 
 %description
 It is the C based reader/scanner and emitter for ruamel.yaml.
@@ -29,6 +32,22 @@ BuildRequires:  python3-Cython
 BuildRequires:  python3-ruamel-yaml
 Requires:       python3-ruamel-yaml
 
+# Bundled sources from libyaml are:
+#   - config.h yaml.h yaml_private.h
+#   - api.c dumper.c emitter.c loader.c parser.c reader.c scanner.c writer.c
+#
+# Support building with an external/system copy of libyaml?
+# https://sourceforge.net/p/ruamel-yaml-clib/tickets/15/
+#
+# Upstream replied:
+#
+#   The copy is because there have been improvements where libyaml had not been
+#   maintained for several years. But that is minor reason to do that, as I am
+#   working on an alternative for clib.
+#
+# Version number from VERSION in config.h:
+Provides:       bundled(libyaml) = 0.1.7
+
 %description -n python3-ruamel-yaml-clib
 It is the C based reader/scanner and emitter for ruamel.yaml.
 
@@ -36,6 +55,7 @@ It is the C based reader/scanner and emitter for ruamel.yaml.
 %autosetup -n ruamel-yaml-clib-code-%{commit}
 # Force regenerating C files from Cython sources
 rm -v $(grep -rl '/\* Generated by Cython')
+cp -p '%{SOURCE1}' .
 
 %build
 # cython refuses to cythonize a file in a directory that cannot be a Python module ¯\_(ツ)_/¯
@@ -54,7 +74,7 @@ rmdir ruamel.yaml.clib
 %py3_check_import _ruamel_yaml
 
 %files -n python3-ruamel-yaml-clib
-%license LICENSE
+%license LICENSE LICENSE-libyaml
 %doc README.rst
 %{python3_sitearch}/_ruamel_yaml.cpython-*
 %{python3_sitearch}/ruamel.yaml.clib-%{version}-py%{python3_version}.egg-info
@@ -68,6 +88,7 @@ rmdir ruamel.yaml.clib
 - Stop numbering sources and patches
 - Update URL (close RHBZ#1840610)
 - Add an import-only “smoke test”
+- Properly handle libyaml bundling
 
 * Fri Jan 20 2023 Fedora Release Engineering <releng@fedoraproject.org> - 0.2.6-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild