Bug#870688: [Debian-science-sagemath] Sage 8.0 status (was Re: Sage 7.6 upload for RC bugfix and GAP 4.8.7 in unstable)

[Ximin Luo]

Control: block 870688 by 869778
Control: affects 869778 + sagemath

Ximin Luo:
> Tobias Hansen:
>> [..]
>>
>> The accidental upload of cysignals 1.6.5 to unstable is now a RC bug
>> (#870688). Not sure if we should fix it by downgrading cysignals,
>> patching sage 7.6 or just let the bug sit until we upload sage 8.0. At
>> least the "Breaks: sagemath (<< 8.0~)" does indeed prevent cysignals
>> from migrating to testing, which is good.
>>
>> [..]
> 
> Hi, I'm at DebConf over the next week and will very likely be able to find some time to deal with this.
> 

Hi, I see that libgsl23 was uploaded but who is taking care of the library transition? It seems that this process was not followed:
https://wiki.debian.org/Teams/ReleaseTeam/Transitions

The transition tracker detected the library change:
https://release.debian.org/transitions/html/auto-gsl.html

However there is no corresponding Transition Tracking bug report:
https://bugs.debian.org/cgi-bin/pkgreport.cgi?pkg=release.debian.org

Currently this prevents me from doing test builds of sagemath, because some of its build dependencies are not installable:

[..]
cd .. && sbuild \
  --extra-repository='deb http://httpredir.debian.org/debian experimental main' \
  --chroot-setup-commands='apt-get install -y apt-transport-https' \
  --extra-repository='deb https://debian-science.alioth.debian.org/apt sid-sage/' \
  --extra-repository-key=/home/infinity0/var/lib/sage/sagemath/debian/deb-sci-sage.asc \
  --build-dep-resolver=aspcud \
  --build-failed-commands '%SBUILD_SHELL' \
   \
  "sagemath_8.0-0~sage1.dsc"
[..]
(I)Distcheck: Solving...
output-version: 1.2
native-architecture: amd64
report:
 -
  package: sbuild-build-depends-sagemath-dummy
  version: 0.invalid.0
  architecture: amd64
  status: broken
  reasons:
   -
    conflict:
     pkg1:
      package: libgslcblas0
      version: 2.4+dfsg-5
      architecture: amd64
      unsat-conflict: libgsl2:amd64
     pkg2:
      package: libgsl2
      version: 2.4+dfsg-2
      architecture: amd64
     depchain1:
      -
       depchain:
        -
         package: sbuild-build-depends-sagemath-dummy
         version: 0.invalid.0
         architecture: amd64
         depends: libgsl-dev:amd64
        -
         package: libgsl-dev
         version: 2.4+dfsg-5
         architecture: amd64
         depends: libgslcblas0:amd64 (= 2.4+dfsg-5)
     depchain2:
      -
       depchain:
        -
         package: sbuild-build-depends-sagemath-dummy
         version: 0.invalid.0
         architecture: amd64
         depends: python-cvxopt:amd64
        -
         package: python-cvxopt
         version: 1.1.9+dfsg-1+b1
         architecture: amd64
         depends: libgsl2:amd64
[..]

X

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