Francois Bissey wrote:
> 
>> On 31/07/2016, at 18:54, leif <not.rea...@online.de> wrote:
>>
>> This is what I get with GMP 6.1.1 (Sage 7.3.rc0, GCC 5.4.0):
>>
>> ----------------------------------------------------------------------
>> sage -t --long --warn-long 68.2 src/sage/structure/sage_object.pyx  #
>> Killed due to abort
>> sage -t --long --warn-long 68.2 src/sage/rings/integer.pyx  # 1 doctest
>> failed
>> sage -t --long --warn-long 68.2 src/sage/homology/simplicial_complex.py
>> # 1 doctest failed
>> sage -t --long --warn-long 68.2 src/doc/en/developer/coding_in_other.rst
>> # 1 doctest failed
>> sage -t --long --warn-long 68.2
>> src/doc/en/constructions/algebraic_geometry.rst  # 1 doctest failed
>> sage -t --long --warn-long 68.2 src/sage/matrix/matrix_double_dense.pyx
>> # 1 doctest failed
>> sage -t --long --warn-long 68.2 src/sage/libs/libecm.pyx  # 1 doctest failed
>> sage -t --long --warn-long 68.2 src/sage/ext/memory.pyx  # 1 doctest failed
>> ----------------------------------------------------------------------
> 
> I’ll assume this is a build from scratch with gmp.
> I think coding_in_other.rst and algebraic_geometry.rst
> are basically the same kind of errors. I had them for a while
> and then they disappeared. The failure is triggered because
> the order of the terms in the output is different.

Yes...  But not caused by GMP, but by Singular not using FLINT when
(only) libgmp (not in addition libmpir) is installed (cf. #21188).


> [...]
> 
> The rest is new to me. Would have to dig difference between
> your ntl/singular and mine at least.

The crash in sage_object.pyx (in unpickle_all(), NTL aborting because a
modular inverse doesn't exist) also vanishes when Singular / libsingular
again uses FLINT, cf. #5838.


-leif


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