Slowdown for PARI integer determinant

Imported from <a href="http://trac.sagemath.org/sage_trac/ticket/13902">trac #13902</a>.

Diff for the PARI spkg, for review only

Reported by: azi

Component: packages

CC: jdemeyer

Report Upstream: N/A

Authors: Jeroen Demeyer

Dependencies: 

Work issues: 

Reviewers: Volker Braun

Merged in: sage-5.6.beta3

Attachments: <ol><li><a href="http://trac.sagemath.org/sage_trac/attachment/ticket/13902/pari-2.5.3.p1.diff">pari-2.5.3.p1.diff: Diff for the PARI spkg, for review only</a> by jdemeyer at 20130103T13:06:21</li></ol>