MPFR doesn't compile with GCC-4.7.0 on ia64

Imported from <a href="http://trac.sagemath.org/sage_trac/ticket/12837">trac #12837</a>.

Diff between the previous spkg in Sage and my new p1 spkg.  For reference / review only.

Reported by: jdemeyer

Component: packages

CC: leif,, jpflori,, mhansen

Report Upstream: N/A

Authors: Leif Leonhardy

Dependencies: 

Work issues: 

Reviewers: Volker Braun

Merged in: sage-5.0.rc0

Attachments: <ol><li><a href="http://trac.sagemath.org/sage_trac/attachment/ticket/12837/mpfr-3.1.0.p0-p1.diff">mpfr-3.1.0.p0-p1.diff: Diff between the previous spkg in Sage and my new p1 spkg.  For reference / review only.</a> by leif at 20120419T15:05:29</li></ol>