Unable to get version information from a tarball archive

[maxamillion]

Commit ID c5a46434815a874c36b52aba5aea2909a26d9e44 introduced the dependency for the build version information to be populated form a git checkout. This doesn't work from a tarball archive which is how we build for Fedora/EPEL.

$ git describe --abbrev=0 --tags
fatal: Not a git repository (or any parent up to mount point /home)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).