Backport upstream fix for Python 3.10 compatibility

libsolv.spec

@@ -22,13 +22,18 @@
 
 Name:           lib%{libname}
 Version:        0.7.15
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Package dependency solver
 
 License:        BSD
 URL:            https://github.com/openSUSE/libsolv
 Source:         %{url}/archive/%{version}/%{name}-%{version}.tar.gz
 
+# Python 3.10 compatibility backport:
+# https://github.com/openSUSE/libsolv/commit/170f8550
+# https://github.com/openSUSE/libsolv/commit/e258226c
+Patch1:         python3.10.patch
+
 BuildRequires:  cmake
 BuildRequires:  gcc-c++
 BuildRequires:  ninja-build
@@ -168,6 +173,11 @@ Python 3 version.
 %check
 %ctest
 
+# Python smoke test (not tested in %%ctest):
+export PYTHONPATH=%{buildroot}%{python3_sitearch}
+export LD_LIBRARY_PATH=%{buildroot}%{_libdir}
+%{python3} -c 'import solv'
+
 %files
 %license LICENSE*
 %doc README
@@ -244,6 +254,10 @@ Python 3 version.
 %endif
 
 %changelog
+* Mon Nov 16 2020 Miro Hrončok <mhroncok@redhat.com> - 0.7.15-2
+- Backport upstream fix for Python 3.10 compatibility
+- Fixes: rhbz#1896411
+
 * Mon Oct 19 2020 Igor Raits <ignatenkobrain@fedoraproject.org> - 0.7.15-1
 - Update to 0.7.15
 

python3.10.patch

@@ -0,0 +1,63 @@
+From 170f8550b89c6c9e61b40e782cd75148825c2e89 Mon Sep 17 00:00:00 2001
+From: Michael Schroeder <mls@suse.de>
+Date: Mon, 16 Nov 2020 13:45:13 +0100
+Subject: [PATCH] Use PyBytes_AsStringAndSize() instead of
+ PyObject_AsReadBuffer() for python3
+
+PyObject_AsReadBuffer was deprecated since python-3.0 and has
+now been removed in python-3.10.
+
+Fixes issue #410
+---
+ bindings/solv.i | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/bindings/solv.i b/bindings/solv.i
+index 48d3f1fb..0a8389a2 100644
+--- a/bindings/solv.i
++++ b/bindings/solv.i
+@@ -44,7 +44,11 @@ typedef struct {
+ #if defined(SWIGPYTHON)
+     const void *pybuf = 0;
+     Py_ssize_t pysize = 0;
++#if PY_VERSION_HEX >= 0x03000000
++    res = PyBytes_AsStringAndSize($input, &pybuf, &pysize);
++#else
+     res = PyObject_AsReadBuffer($input, &pybuf, &pysize);
++#endif
+     if (res < 0) {
+       %argument_fail(res, "BinaryBlob", $symname, $argnum);
+     } else {
+
+From e258226c2430db4f37a34c71e72b2d909fa407fe Mon Sep 17 00:00:00 2001
+From: Michael Schroeder <mls@suse.de>
+Date: Mon, 16 Nov 2020 15:11:14 +0100
+Subject: [PATCH] Properly escape preprocessor directives
+
+Otherwise swig will process them instead of the compiler
+
+Should have been in commit 170f8550b89c6c9e61b40e782cd75148825c2e89
+---
+ bindings/solv.i | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/bindings/solv.i b/bindings/solv.i
+index 0a8389a2..1882b135 100644
+--- a/bindings/solv.i
++++ b/bindings/solv.i
+@@ -44,11 +44,11 @@ typedef struct {
+ #if defined(SWIGPYTHON)
+     const void *pybuf = 0;
+     Py_ssize_t pysize = 0;
+-#if PY_VERSION_HEX >= 0x03000000
+-    res = PyBytes_AsStringAndSize($input, &pybuf, &pysize);
+-#else
++%#if PY_VERSION_HEX >= 0x03000000
++    res = PyBytes_AsStringAndSize($input, (char **)&pybuf, &pysize);
++%#else
+     res = PyObject_AsReadBuffer($input, &pybuf, &pysize);
+-#endif
++%#endif
+     if (res < 0) {
+       %argument_fail(res, "BinaryBlob", $symname, $argnum);
+     } else {