On Wed, Mar 14, 2018 at 4:49 PM, Erik Bray <erik.m.b...@gmail.com> wrote:
> I am now pretty consistently getting the following failure on Cygwin
> with 8.2beta8 (although strangely I've run the test once or twice with
> success too...):
>
> sage -t --warn-long 164.8 src/sage/structure/coerce_actions.pyx
> **********************************************************************
> File "src/sage/structure/coerce_actions.pyx", line 786, in
> sage.structure.coerce_actions.IntegerMulAction._repr_name_
> Failed example:
>     IntegerMulAction(ZZ, GF5)
> Expected:
>     Left Integer Multiplication by Integer Ring on Finite Field of size 5
> Got:
>     Left Integer Multiplication by Integer Ring on Finite Field of size 1
> **********************************************************************
> 1 item had failures:
>    1 of   4 in sage.structure.coerce_actions.IntegerMulAction._repr_name_
>     [143 tests, 1 failure, 3.30 s]
> ----------------------------------------------------------------------
> sage -t --warn-long 164.8 src/sage/structure/coerce_actions.pyx  # 1
> doctest failed
>
> bizarre. Maybe some kind of cache bug?

Well, I've been trying to debug this for a last hour and it got pretty
deep pretty fast.  I'm looking now at the possibility of a memory
allocation bug in MPIR/GMP...


> On Wed, Mar 14, 2018 at 4:34 PM, Sébastien Labbé <sla...@gmail.com> wrote:
>> On Ubuntu 16.04, my first attempt at running make finishes with a problem
>> with giac (undefined reference to `png_set_longjmp_fn')
>>
>> The log finishes with:
>>
>> ...
>> [giac-1.4.9.45.p2] libtool: link: g++ -g -O2 -fno-strict-aliasing
>> -DGIAC_GENERIC_CONSTANTS -Wl,-rpath -Wl,/home/slabbe/GitBox/sage/local/lib
>> -o .libs/icas icas.o  -L/home/slabbe/GitBox/sage/local/lib ./.libs/libxcas.a
>> /home/slabbe/GitBox/sage/local/var/tmp/sage/build/giac-1.4.9.45.p2/src/src/.libs/libgiac.so
>> -lntl -lpari -lreadline -ltermcap -lgsl -lgslcblas -lrt -lpthread -lglpk
>> -ldl -lpng -lm -lmpfi /home/slabbe/GitBox/sage/local/lib/libmpfr.so -lgmp
>> -Wl,-rpath -Wl,/home/slabbe/GitBox/sage/local/lib
>> [giac-1.4.9.45.p2]
>> /home/slabbe/GitBox/sage/local/var/tmp/sage/build/giac-1.4.9.45.p2/src/src/.libs/libgiac.so:
>> undefined reference to `png_set_longjmp_fn'
>> [giac-1.4.9.45.p2] collect2: error: ld returned 1 exit status
>> [giac-1.4.9.45.p2] Makefile:579: recipe for target 'icas' failed
>> [giac-1.4.9.45.p2] make[5]: *** [icas] Error 1
>> [giac-1.4.9.45.p2] make[5]: Leaving directory
>> '/home/slabbe/GitBox/sage/local/var/tmp/sage/build/giac-1.4.9.45.p2/src/src'
>> [giac-1.4.9.45.p2] Makefile:404: recipe for target 'all-recursive' failed
>> [giac-1.4.9.45.p2] make[4]: *** [all-recursive] Error 1
>> [giac-1.4.9.45.p2] make[4]: Leaving directory
>> '/home/slabbe/GitBox/sage/local/var/tmp/sage/build/giac-1.4.9.45.p2/src'
>> [giac-1.4.9.45.p2] Makefile:333: recipe for target 'all' failed
>> [giac-1.4.9.45.p2] make[3]: *** [all] Error 2
>> [giac-1.4.9.45.p2] make[3]: Leaving directory
>> '/home/slabbe/GitBox/sage/local/var/tmp/sage/build/giac-1.4.9.45.p2/src'
>> [giac-1.4.9.45.p2]
>> ********************************************************************************
>> [giac-1.4.9.45.p2] Error building giac-1.4.9.45.p2
>> [giac-1.4.9.45.p2]
>> ********************************************************************************
>> ...
>>
>> I did
>>
>> sage -f libpng && make
>>
>> which seems to have fixed the error:
>>
>> ...
>> [giac-1.4.9.45.p2] successfully installed.
>> ...
>>
>> ... still running.
>>
>> Sébastien
>>
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