[Debian-science-sagemath] Fwd: Bug#888606: cysignals: FTBFS with debhelper/11.1 due to empty build target

Tue Feb 6 20:37:00 UTC 2018

giac is now fine, sagemath still failing.

https://buildd.debian.org/status/fetch.php?pkg=sagemath&arch=ppc64el&ver=8.1-2%2Bb2&stamp=1517948950&raw=0

        python_grammar = driver.load_packaged_grammar("lib2to3", _GRAMMAR_FILE)
    AttributeError: 'module' object has no attribute 'load_packaged_grammar'

Probably due to recent python changes since the last upload. I'll look tomorrow/day after, and also package giac 1.4 (or feel free to jump in ahead too).

X

Ximin Luo:
> At least flint-arb looks like MPFR4 issues, another version was released recently. Sucks that all these "bugs" were filed against our packages before more detailed investigation about the cause.
> 
> I've been away from home, will take a closer look when I get back in the next few days.
> 
> X
> 
> Tobias Hansen:
>> Hi all,
>>
>> I could not reproduce the FTBFS of giac on amd64. Should I just reupload giac with the unimportant change that is in git to see if it works now? Or upload the new version 1.4.9.45? (sagemath 8.2.beta4 uses this version.)
>>
>> However with giac built against libmpfr6 and libmpfr4 uninstalled I still get the same segfaults with sagemath.
>>
>> flint-arb and cypari2 also have problems building. :(
>>
>> Best,
>> Tobias
>>
>>
>>
>> On 01/29/2018 02:22 PM, Tobias Hansen wrote:
>>> Ah yes, giac is still using libmpfr4 because its rebuild failed on amd64.
>>>
>>> Best,
>>> Tobias
>>>
>>> On 01/28/2018 01:38 PM, Ximin Luo wrote:
>>>> I saw some issue, I forgot where, that pointed out both mpfr4 and mpfr6 were getting pulled into certain builds. You could check your sbuild logs to see if both are getting installed.
>>>>
>>>> X
>>>>
>>>> Tobias Hansen:
>>>>> Hi,
>>>>>
>>>>> yes, I think you can update cysignals in unstable. I applied upstream patches for new mpfr and matplotlib versions to sagemath and built it with both versions of cysignals yesterday and got the same problems:
>>>>>
>>>>> sage -t --long src/sage/rings/number_field/number_field.py  # Bad exit: 1
>>>>> sage -t --long src/sage/rings/polynomial/plural.pyx  # Killed due to segmentation fault
>>>>> sage -t --long src/sage/structure/factorization_integer.py  # Killed due to kill signal
>>>>> sage -t --long src/sage/structure/sage_object.pyx  # Killed due to abort
>>>>>
>>>>> I have had the failure with number_field.py on my computer for a while, but it doesn't happen on buildds. The others are new, but I don't even know if the libmpfr6 transition is finished...
>>>>>
>>>>> Best,
>>>>> Tobias
>>>>>
>>>>>
>>>>> On 01/28/2018 06:11 AM, Jerome BENOIT wrote:
>>>>>> Hello,
>>>>>>
>>>>>> this issue was fixed in 1.6.6+ds-2 which is current in experimental:
>>>>>> can we migrate cysingals 1.6.6+ds-2 to unstable ?
>>>>>>
>>>>>> Thanks,
>>>>>> Jerome
>>>>>>
>>>>>>
>>>>>> -------- Forwarded Message --------
>>>>>> Subject: Bug#888606: cysignals: FTBFS with debhelper/11.1 due to empty build target
>>>>>> Resent-Date: Sat, 27 Jan 2018 17:51:02 +0000
>>>>>> Resent-From: Niels Thykier <niels at thykier.net>
>>>>>> Resent-To: debian-bugs-dist at lists.debian.org
>>>>>> Resent-CC: Jerome Benoit <calculus at rezozer.net>
>>>>>> Date: Sat, 27 Jan 2018 18:44:34 +0100
>>>>>> From: Niels Thykier <niels at thykier.net>
>>>>>> Reply-To: Niels Thykier <niels at thykier.net>, 888606 at bugs.debian.org
>>>>>> To: Debian Bug Tracking System <submit at bugs.debian.org>
>>>>>>
>>>>>> Source: cysignals
>>>>>> Version: 1.6.5+ds-2
>>>>>> Severity: serious
>>>>>> Tags: patch
>>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> The cysignals package FTBFS with debhelper/11.1 as it has an empty
>>>>>> build target.  This is caused by debhelper had a bug in its handling
>>>>>> of "explicitly defined rules targets" that has now been fixed.
>>>>>>
>>>>>> Previously, this happened to work because dpkg-buildpackage would
>>>>>> invoke "debian/rules build" (which would be a no-op) followed by
>>>>>> "fakeroot debian/rules binary".  During the binary target, dh's
>>>>>> suboptimal handling would run the build commands.
>>>>>>
>>>>>>
>>>>>> The solution is trivial but less pretty; explicitly define "build"
>>>>>> with the same content as the "%:" target (or rename the "build" folder
>>>>>> and drop the ".PHONY" target).  I have attached a patch for this.
>>>>>>
>>>>>>
>>>>>> More details can be found in:
>>>>>>  * #886901 comment #35
>>>>>>  * #887688 comment #37
>>>>>>  * #880840
>>>>>>
>>>>>> Apologies for the inconvenience.
>>>>>>
>>>>>> Thanks,
>>>>>> ~Niels
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
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>>>>>> Debian-science-sagemath at lists.alioth.debian.org
>>>>>> https://lists.alioth.debian.org/mailman/listinfo/debian-science-sagemath
>>>>>
>>>>>
>>>>>
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>>>>>
>>>
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