Outdated bug report URL in configure.ac
AC_INIT([sound-theme-freedesktop],
[0.9],
[http://bugzilla.freedesktop.org/enter_bug.cgi?product=sound-theme-freedesktop])
But going to that URL says:
This bug tracking system is no longer in use for active bugs. Most projects formerly using this service are now using the freedesktop.org GitLab for bug tracking. Please go there and find the project you are interested in. If you cannot find it, you can see our list of software projects and list of specificatons we maintain for pointers.
Please change the link to https://gitlab.freedesktop.org/xdg/xdg-sound-theme/-/issues.