Enable system libexpat

OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python?expand=0&rev=413

python-base.spec

@@ -170,6 +170,7 @@ Patch80:        CVE-2022-48566-compare_digest-more-constant.patch
 BuildRequires:  automake
 BuildRequires:  fdupes
 BuildRequires:  libbz2-devel
+BuildRequires:  libexpat-devel
 BuildRequires:  libffi-devel
 # This is NOT switching off NIS support on SLE < 15,
 # support for NIS used to be in the glibc itself
@@ -363,6 +364,7 @@ touch Parser/asdl* Python/Python-ast.c Include/Python-ast.h
     --docdir=%{_docdir}/python \
     --with-fpectl \
     --with-system-ffi \
+    --with-system-expat \
     --enable-ipv6 \
     --enable-shared \
     --enable-unicode=ucs4
@@ -484,6 +486,8 @@ ln -s python%{python_version}.1.gz %{buildroot}%{_mandir}/man1/python.1.gz
 # install Makefile.pre.in and Makefile.pre
 cp Makefile Makefile.pre.in Makefile.pre %{buildroot}%{_libdir}/python%{python_version}/config/
 
+%clean
+
 %post -n libpython2_7-1_0 -p %{run_ldconfig}
 %postun -n libpython2_7-1_0 -p %{run_ldconfig}