[Debian-science-sagemath] Sage 8.4 and Debian buster

[Tobias Hansen]

On 10/05/2018 07:54 AM, Jerome BENOIT wrote:
>
> On 04/10/18 12:15, Tobias Hansen wrote:
>> On 10/04/2018 08:19 AM, Ximin Luo wrote:
>>> Tobias Hansen:
>>>> On 10/04/2018 06:43 AM, Ximin Luo wrote:
>>>>> Jerome BENOIT:
>>>>>> On 03/10/18 19:02, Ximin Luo wrote:
>>>>>>> Tobias Hansen:
>>>>>>>> On 10/01/2018 05:50 AM, Jerome BENOIT wrote:
>>>>>>>>> On 30/09/18 23:03, Tobias Hansen wrote:
>>>>>>>>>> [..]
>>>>>>>>>>
>>>>>>>>>> We have to figure out what to do with singular (upload 4.1.1p2 to experimental or fix the problem otherwise) and then upload pynac 0.7.22 with a dependency on the new singular version to experimental.
>>>>>>>>> Singular 4.1.1p3 is in experimental, I guess I can package 4.1.1p2: can we downgrade in experimental ?
>>>>>>>>>
>>>>>>>>> Jerome
>>>>>>>> I don't know. If you want to avoid increasing the epoch you could just try and see if the upload gets rejected.
>>>>>>>>
>>>>>>> I think for experimental you will have to use something like 4.1.1p3+actually4.1.1p2, epochs are now discouraged by Policy for "downgrade" purposes, see:
>>>>>>>
>>>>>>> https://www.debian.org/doc/debian-policy/upgrading-checklist.html#version-4-1-5
>>>>>>>
>>>>>>> I'm fairly sure you can upload to unstable a version X even if X < what's in experimental as long as it's > what's in unstable. I'm pre+tty sure I've done that before with rustc, e.g. uploaded 1.15.1-3 to unstable even though experimental had 1.16.1-1~exp1.
>>>>>> May we upload Singular 4.1.1p2 to Sid ?
>>>>>>
>>>>> I think that is fine yes.
>>>> No, it should conflict with sagemath 8.3. Why not experimental?
>>>>
>>> 4.1.1p3 is already in experimental. In order to upload 4.1.1p2 to experimental, we would have to version it as 4.1.1p3+actually4.1.1p2 by Debian policy. (As opposed to bumping the epoch, which is now discouraged.)
>>>
>>> What is wrong with uploading 4.1.1p2 directly to Debian unstable, and then uploading pynac again to force a rebuild? I don't think anything else depends on these.
>>>
>>> X
>>>
>> Ok, but then we need to test sagemath 8.3 (with the singular update patch) with these before we do that.
> singular 4.1.1-p2+ds is the previous packaged version of singular in experimental.
>
> So, I guess that we have already the material to test.
>
> Jerome

Ok, I tested sagemath 8.3 with singular 4.1.1-p2 and get the errors that are also discussed in [1] (I also got them with sage 8.4 and singular 4.1.1-p2):

sage -t --long src/sage/libs/ntl/error.pyx  # Bad exit: 2
sage -t --long src/sage/libs/ntl/ntl_ZZ_pX.pyx  # Bad exit: 2
sage -t --long src/sage/matrix/matrix_integer_dense.pyx  # Bad exit: 2

So we need to apply the patch [2] to singular.

Best,
Tobias

[1] https://trac.sagemath.org/ticket/24735
[2] https://git.sagemath.org/sage.git/commit/?id=50b9ae2fd233c30860e1cbb3e63a26f2cc10560a