I am making an RPM in which everything is contained in the .spec file (don't ask :-). rpmbuild requires a "Source" file, so I was trying to create an empty tar file. However, if I don't give any filenames, tar complains:
tar: Cowardly refusing to create an empty archive Try `tar --help' or `tar --usage' for more information.
How do I get it to create a truly empty tar file?