Comment # 1 on bug 4639 from Andrea Musuruane

Hi Ben,

The build-dfhack-tarball script is not shipped inside the src.rpm file but you
must provide it.

"There are several cases where upstream is not providing the source to you in
an upstream tarball. In these cases you must document how to generate the
tarball used in the rpm either through a spec file comment or a script included
as a separate SourceX:. "
https://fedoraproject.org/wiki/Packaging:SourceURL#Referencing_Source