Please branch and build dmenu in epel9. If you do not wish to maintain dmenu in epel9, I would be happy to be a co-maintainer of the package. I have tested and the rawhide package builds on CentOS Stream 9 without any changes.
Filed a branch request as https://pagure.io/releng/fedora-scm-requests/issue/39270.
FEDORA-EPEL-2021-eaddcb7da6 has been submitted as an update to Fedora EPEL 9. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2021-eaddcb7da6
FEDORA-EPEL-2021-eaddcb7da6 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-2021-eaddcb7da6 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-EPEL-2021-eaddcb7da6 has been pushed to the Fedora EPEL 9 stable repository. If problem still persists, please make note of it in this bug report.