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

[Ximin Luo]

I tested 8.1-2 against latest unstable and these errors have gone away.

I see you made some changes for 8.1-3 which fixes some other issues (matplotlib etc), they look good to me, I'll let you upload that when you're ready.

X

Tobias Hansen:
> Yes, looks like it might be fixed in the last python upload:
> 
>  python2.7 (2.7.14-6) unstable; urgency=medium
>  .
>    * Don't run lib2to3 tests which rely on the pickled grammar files.
> 
> 
> 
> On 02/06/2018 09:37 PM, Ximin Luo wrote:
>> 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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