ports/84724: New port for MPFR library and fix broken libgmp4 port

[Mark Linimon]

Synopsis: New port for MPFR library and fix broken libgmp4 port

Responsible-Changed-From-To: freebsd-ports-bugs->ale
Responsible-Changed-By: linimon
Responsible-Changed-When: Wed Aug 10 07:03:58 GMT 2005
Responsible-Changed-Why: 
Over to maintainer of math/libgmp4 to attend to at least part of this PR.

http://www.freebsd.org/cgi/query-pr.cgi?pr=84724