The converters/rpm2cpio is a very simple package that only consist of
one perl file, so it sets NO_BUILD=YES and just installs that file.

It does include ../../lang/perl5/buildlink3.mk to get the run time
dependency on perl. But the perl dependency is not added when NO_BUILD
is set...  Is this a bug or a feature in NO_BUILD?  (and if it is a
feature, how should the package be fixed?)

I'll create an empty do-build target in the package for now, since
the current failure makes the bulk build of fonts/chkfontpath wait
for user input...

    /Krister