Issue skupperproject#910, skupperproject#48, skupperproject#102, skup…

…perproject#1270 Use Python 3.11 in RHEL/CentOS RPM build

packaging/skupper-router.spec

@@ -38,6 +38,7 @@
 %global proton_vendored_version 0.39.0
 %define proton_install_prefix %{_builddir}/qpid-proton-%{proton_vendored_version}/install
 
+%global python_minimum_version 3.9.0
 %global proton_minimum_version 0.37.0
 %global libwebsockets_minimum_version 3.0.1
 %global libnghttp2_minimum_version 1.33.0
@@ -50,7 +51,14 @@ Summary:       The skrouterd router daemon for Skupper.io
 License:       ASL 2.0
 URL:           https://skupper.io
 
-Requires: python3
+%if 0%{?fedora}
+Requires: python3 >= %{python_minimum_version}
+Requires: python3-cffi
+%endif
+%if 0%{?rhel}
+Requires: python3.11 > %{python_minimum_version}
+Requires: python3.11-cffi
+%endif
 Requires: skupper-router-common == %{version}
 Requires: libwebsockets >= %{libwebsockets_minimum_version}
 Requires: libnghttp2 >= %{libnghttp2_minimum_version}
@@ -63,11 +71,19 @@ BuildRequires: gcc-c++
 BuildRequires: cmake
 
 # skupper-router requirements
-BuildRequires: python3-devel
+%if 0%{?fedora}
+BuildRequires: python3-devel >= %{python_minimum_version}
 BuildRequires: python3-setuptools
-BuildRequires: python3-setuptools_scm
 BuildRequires: python3-wheel
 BuildRequires: python3-pip
+%endif
+%if 0%{?rhel}
+BuildRequires: python3.11-devel >= %{python_minimum_version}
+BuildRequires: python3.11-setuptools
+BuildRequires: python3.11-wheel
+BuildRequires: python3.11-pip
+BuildRequires: python3.11-rpm-macros
+%endif
 BuildRequires: libwebsockets-devel >= %{libwebsockets_minimum_version}
 BuildRequires: libnghttp2-devel >= %{libnghttp2_minimum_version}
 BuildRequires: libunwind-devel >= %{libunwind_minimum_version}
@@ -106,6 +122,7 @@ cd %{_builddir}/qpid-proton-%{proton_vendored_version}
     -DBUILD_EXAMPLES=OFF \
     -DBUILD_TESTING=OFF \
     -DBUILD_BINDINGS=OFF \
+    -DPython_EXECUTABLE=%{python3} \
     -DBUILD_TLS=ON -DSSL_IMPL=openssl \
     -DBUILD_STATIC_LIBS=ON \
     -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON \