Comment 4 for bug 176209

Somewhat usefully perhaps, ccp4 has been packaged for fink:

http://pdb.finkproject.org/pdb/package.php/ccp4

It is my understanding that gpp4 covers a part of that ccp4 package, so it is not a drop in replacement.
(Note that the licenses for ccp4 and gpp4 are different).