Re: modified source-distribution.make

[Nicola Pero]

Hi - thanks - definitely useful - I've added all this functionality to the
cvs HEAD gnustep-make - with many changes in the technicalities, but no
actual change in logic.

Of course let me know if something doesn't work.

I hope I've got the tar flags right, so that the tar command should be
portable.  I've basically reused the bundle.make ones, which were tested
over a variety of platforms.

Thanks again for contributing.