LinBox (1.1.6) fails to build with GCC 4.7.0, and lacks an `spkg-check`

Imported from <a href="http://trac.sagemath.org/sage_trac/ticket/12762">trac #12762</a>.

Diff between leif's p9 (a rebased p8) and my p10 spkgs. For reference / review only.

Reported by: leif

Component: packages

CC: cpernet,, was,, mariah

Report Upstream: N/A

Authors: Leif Leonhardy

Dependencies: 

Work issues: 

Reviewers: Jeroen Demeyer, Karl-Dieter Crisman

Merged in: sage-5.0.1.rc1

Attachments: <ol><li><a href="http://trac.sagemath.org/sage_trac/attachment/ticket/12762/linbox-1.1.6.p7-p8.diff">linbox-1.1.6.p7-p8.diff: Diff between the previous spkg in Sage and my new p8 spkg.  For reference / review only.</a> by leif at 20120407T20:09:34</li><li><a href="http://trac.sagemath.org/sage_trac/attachment/ticket/12762/linbox-1.1.6.p10.diff">linbox-1.1.6.p10.diff: Diff between leif's p9 (a rebased p8) and my p10 spkgs. For reference / review only.</a> by jdemeyer at 20120526T00:28:19</li></ol>