#9717: fix variable substitution in PolyBoRi + finding M4RI
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   Reporter:  malb                                                     |       
Owner:  malb                                      
       Type:  defect                                                   |      
Status:  positive_review                           
   Priority:  critical                                                 |   
Milestone:  sage-4.5.3                                
  Component:  commutative algebra                                      |    
Keywords:                                            
     Author:  Alexander Dreyer, Martin Albrecht, Michael Brickenstein  |    
Upstream:  Fixed upstream, in a later stable release.
   Reviewer:  Martin Albrecht, Alexander Dreyer, Leif Leonhardy        |      
Merged:                                            
Work_issues:                                                           |  
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Description changed by leif:

Old description:

> For some inputs our[wiki:PolyBoRi] wrapper throws an error while upstream
> computes the example just fine. The reason we fail is that some rings
> don't match and thus coercion goes wrong. The problem was reported by
> Joan Daemen who also provided an example via private communication.

New description:

 For some inputs our [wiki:PolyBoRi] wrapper throws an error while upstream
 computes the example just fine. The reason we fail is that some rings
 don't match and thus coercion goes wrong. The problem was reported by Joan
 Daemen who also provided an example via private communication.

 ----

 == Note to the release managers ==

 When merging the
 [http://sage.math.washington.edu/home/malb/spkgs/polybori-0.6.4.p4.spkg
 new PolyBoRi 0.6.4.p4 spkg], '''apply'''
 [http://trac.sagemath.org/sage_trac/raw-
 attachment/ticket/9717/polybori-0.6.4.p2.patch the attached patch] '''to
 the Sage library'''.

--

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9717#comment:33>
Sage <http://www.sagemath.org>
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