#12173: Update FLINT to 2.3
---------------------------------------------------------------------+------
       Reporter:  mhansen                                            |         
Owner:  tbd                         
           Type:  enhancement                                        |        
Status:  needs_info                  
       Priority:  major                                              |     
Milestone:  sage-5.10                   
      Component:  packages: standard                                 |    
Resolution:                              
       Keywords:  flint spkg                                         |   Work 
issues:                              
Report Upstream:  N/A                                                |     
Reviewers:  John Cremona, Jeroen Demeyer
        Authors:  Mike Hansen, Fredrik Johansson, Jean-Pierre Flori  |     
Merged in:                              
   Dependencies:  #12433, #14393                                     |      
Stopgaps:                              
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Changes (by Snark):

  * status:  needs_review => needs_info


Comment:

 The following is quite strange:
 {{{
 Configuring FLINT.
 Configuring...x86_64-Linux
 Testing __builtin_popcountl...yes
 Testing native popcount..../configure : ligne 315 :  8361 Instruction non
 permise build/test-popcnt > /dev/null 2>&1
 no
 Building FLINT shared library.
 }}}

 The configure script *dies*, but the result is still zero, so spkg-install
 still starts to compile!

 Notice that the death of the configure script is present in upstream's 2.3
 and today's git checkout, so it's not sage-specific.

 I have tried to get more information about it : on x86_64, compiling with
 -mpopcnt works, but running the resulting test file raises an illegal
 instruction... which kills the configure script without error (!).

 I still haven't reported upstream because I saw the problem while testing
 the spkg in this report. You'll have to actually look at your
 spkg/logs/flint-2.3.p0.log to see the problem, because the package
 compiles perfectly.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12173#comment:300>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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