Fix building with patched cffi on Fedora 39

Signed-off-by: Nils Philippsen <nils@redhat.com>

python-pygit2-cffiver.patch

@@ -0,0 +1,31 @@
+diff -up pygit2-1.13.2/docs/install.rst.cffiver pygit2-1.13.2/docs/install.rst
+--- pygit2-1.13.2/docs/install.rst.cffiver	2023-10-30 09:50:04.000000000 +0100
++++ pygit2-1.13.2/docs/install.rst	2023-11-11 00:01:15.551991748 +0100
+@@ -55,7 +55,7 @@ Supported versions of Python:
+ 
+ Python requirements (these are specified in ``setup.py``):
+ 
+-- cffi 1.16.0 or later
++- cffi 1.16.0 or later (or Fedora package >= 1.15.1-5)
+ 
+ Libgit2 **v1.7.1+**; binary wheels already include libgit2, so you only need to
+ worry about this if you install the source package.
+diff -up pygit2-1.13.2/requirements.txt.cffiver pygit2-1.13.2/requirements.txt
+--- pygit2-1.13.2/requirements.txt.cffiver	2023-10-30 09:50:04.000000000 +0100
++++ pygit2-1.13.2/requirements.txt	2023-11-10 23:58:49.756179131 +0100
+@@ -1,2 +1,2 @@
+-cffi>=1.16.0
++cffi>=1.9.1
+ setuptools ; python_version >= "3.12"
+diff -up pygit2-1.13.2/setup.py.cffiver pygit2-1.13.2/setup.py
+--- pygit2-1.13.2/setup.py.cffiver	2023-10-30 09:50:04.000000000 +0100
++++ pygit2-1.13.2/setup.py	2023-11-10 23:59:47.350500138 +0100
+@@ -153,7 +153,7 @@ setup(
+     ext_modules=ext_modules,
+     # Requirements
+     python_requires='>=3.8',
+-    setup_requires=['cffi>=1.16.0'],
++    setup_requires=['cffi>=1.9.1'],
+     install_requires=install_requires,
+     # URLs
+     url='https://github.com/libgit2/pygit2',

python-pygit2.spec

@@ -8,6 +8,10 @@ Summary:        Python bindings for libgit2
 License:        GPLv2 with linking exception
 URL:            https://www.pygit2.org/
 Source0:        https://github.com/libgit2/pygit2/archive/v%{version}.tar.gz#/%{pkgname}-%{version}.tar.gz
+# This patch lowers the Python-level dependency on cffi. Fedora package python-cffi-1.15.1-5 and
+# higher contain the patches needed for Python >= 3.12.
+# Remove when cffi >= 1.16.0 is available on all releases with Python 3.12.
+Patch:          python-pygit2-cffiver.patch
 
 BuildRequires:  make
 BuildRequires:  gcc
@@ -21,10 +25,11 @@ the core of Git.
 %package -n     python3-%{pkgname}
 Summary:        Python 3 bindings for libgit2
 %{?python_provide:%python_provide python3-%{pkgname}}
-BuildRequires:  python3-cffi
-BuildRequires:  python3-devel
 BuildRequires:  python3-pytest
-BuildRequires:  python3-setuptools
+# This version of cffi is patched for Python >= 3.12.
+# Remove when cffi >= 1.16.0 is available on all releases with Python 3.12.
+BuildRequires:  python3-cffi >= 1.15.1-5
+Requires:       python3-cffi >= 1.15.1-5
 
 %description -n python3-%{pkgname}
 pygit2 is a set of Python bindings to the libgit2 library, which implements
@@ -47,14 +52,18 @@ Documentation for %{name}.
 %autosetup -n %{pkgname}-%{version} -p1
 
 
+%generate_buildrequires
+%pyproject_buildrequires
+
+
 %build
-%py3_build
+%pyproject_wheel
 
 make -C docs html
 
 
 %install
-%py3_install
+%pyproject_install
 find %{_builddir} -name '.buildinfo' -print -delete
 
 
@@ -72,7 +81,7 @@ rm -f pygit2/__init__.py
 %files -n python3-%{pkgname}
 %license COPYING
 %doc README.rst
-%{python3_sitearch}/%{pkgname}-*.egg-info/
+%{python3_sitearch}/%{pkgname}-*.dist-info/
 %{python3_sitearch}/%{pkgname}/
 
 %files doc