Please branch and build msgpack in epel9. If you do not wish to maintain msgpack in epel9, or do not think you will be able to do this in a timely manner, the EPEL Packagers SIG would be happy to be a co-maintainer of the package; please add the epel-packagers-sig group through https://src.fedoraproject.org/rpms/msgpack/addgroup and grant it commit access, or collaborator access on epel* branches. I would also be happy to be a co-maintainer (FAS: salimma), and can be the primary contact for EPEL (FAS: salimma).
Will you be able to branch and build msgpack in epel9? The EPEL Packagers SIG would be happy to be a co-maintainer if you do not wish to build it on epel9.
Koji scratch build (using the Rawhide latest commit) https://koji.fedoraproject.org/koji/taskinfo?taskID=84613079
$ fedpkg request-branch --repo=msgpack epel9 https://pagure.io/releng/fedora-scm-requests/issue/43289
FEDORA-EPEL-2022-4355ec6f26 has been submitted as an update to Fedora EPEL 9. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2022-4355ec6f26
FEDORA-EPEL-2022-4355ec6f26 has been pushed to the Fedora EPEL 9 testing repository. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2022-4355ec6f26 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-EPEL-2022-4355ec6f26 has been pushed to the Fedora EPEL 9 stable repository. If problem still persists, please make note of it in this bug report.