The rebuild is required once pari 2.5 hits rawhide. The patches were written by me several month ago, and are documented in the spec file. Spec URL: http://fedorapeople.org/~pcpa/Macaulay2.spec SRPM URL: http://fedorapeople.org/~pcpa/Macaulay2-1.4-6.fc18.src.rpm
Why not mpir?
.spec includes comment: # link to gmp, not mpir to avoid possible issues with gmp'ed pari though a little more detail would be nice. :)
I did choose to not package mpir in Mandriva, and so far gmp is doing good enough, but you may ignore the mpir patch in the RFE :-) Still, my sagemath package will not use mpir...
* Sun Jul 1 2012 pcpa <paulo.cesar.pereira.de.andrade> - 1.4-6 - Link to gmp not mpir. - Rebuild with pari 2.5.