On Wednesday, March 26, 2014 3:58:06 PM UTC-4, John Cremona wrote:
>
> On 26 March 2014 18:22, kcrisman <[email protected] <javascript:>> wrote: 
> > I've created http://trac.sagemath.org/ticket/16017 for this libs.mwrank 
> > issue, though I still really don't know what the issue is :( 
>
> Previous version of eclib did not use Flint.  The current one 
> (eclib-20140128) does, and it requires Flint version at least 2.3.  If 
> you configure mwrank without specifying --with-flint=... then it will 
> test for the Flint symbols it uses which are mostly of the form 
> _nmod_mat_rref.  But if you specify --with=flint= *as we do in the 
> spkg-install script for Sage* then that check is not carried out. 
>
> It follows that if Sage was using a Flint version <2.3 then building 
> Sage would fail. 
>
> Of course, this should not be the reason for your problem since Sage 
> does now use Flint 2.3, and possibly 2.4.  I have *not* tested eclib 
> against Flint 2.4 and perhaps I should!  Though 2.4.3 still has the 
> nmod_mat module, and eclib builds on most machines. 
>
> John 
>

Sage 6.4.beta5 uses Flint 2.4.2, and beta4 used 2.4.1, and I have the 
identical problem on both of them, so that should not be the issue. 

John, can you see anything unusual 
in http://boxen.math.washington.edu/home/kcrisman/eclib-20140128.log that 
would cause this, perhaps?  I'm starting to lean more toward leif's ideas, 
because it's not clear that the make warnings are anything other than 
warnings (see the beta5 thread).

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