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

Thu Feb 8 01:10:00 UTC 2018

Yes, I get these (plus other more trivial stuff):

sage -t --long src/sage/rings/polynomial/plural.pyx  # Killed due to segmentation fault
sage -t --long src/sage/structure/sage_object.pyx  # Killed due to abort

I'll take a look tomorrow during the day.

X

Tobias Hansen:
> I still get a segfault when testing src/sage/structure/sage_object.pyx. Do you also get that with 8.1-3? If not we can upload.
> 
> Best,
> Tobias
> 
> On 02/07/2018 04:19 PM, Ximin Luo wrote:
>> 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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