rawhide hits rpm-4.18.0 alpha - affecting gem based packaging

[Mamoru TASAKA]

Hello, all:

Now I was going to update rubygem-kramdown, resulting in build failure.
Then I've noticed that on rawhide, "rpm" was updated to rpm 4.18.0 alpha .
This seems to affect current gem based packaing of ours.

Mainly: "%setup -q" for foo-%version.gem places foo-%version.gemspec on
%{_sourcedir} with rpm 4.18.0 alpha . Previously (with rpm 4.17.x), gemspec file
was placed on %{_builddir}.

Maybe we may have to update packaging guideline, or modify gem2rpm.

Regards,
Mamoru