#18514: Upgrade of group cohomology spkg
-------------------------------------+-------------------------------------
       Reporter:  SimonKing          |        Owner:
           Type:  defect             |       Status:  needs_work
       Priority:  major              |    Milestone:  sage-6.8
      Component:  packages:          |   Resolution:
  optional                           |    Merged in:
       Keywords:  group cohomology   |    Reviewers:
        Authors:  Simon King         |  Work issues:  Create a new-style
Report Upstream:  None of the above  |  package with least effort
  - read trac for reasoning.         |       Commit:
         Branch:                     |  ad6cea059d383bbb0a97c8430caca125d2ca78b7
  u/SimonKing/upgrade_of_group_cohomology_spkg|     Stopgaps:
   Dependencies:  #18494             |
-------------------------------------+-------------------------------------

Comment (by jdemeyer):

 Replying to [comment:84 SimonKing]:
 > Question to the reviewer: I made the new package depend on database_gap.
 In fact, what really depends on database_gap is only the to-be-created
 wrapper in the Sage library. Since database_gap is non-GPL, I think it
 should only be installed (as a dependency) when the user agrees. Is that
 possible with the dependency framework of packages?
 No, that's not possible within the dependency framework. Also, I
 personally don't think it's a good idea to add this kind of interactive
 install procedures.

 > Or better move the dependency to the wrapper?
 The wrapper will become part of the Sage library, right? So what do you
 mean with "move the dependency to the wrapper"?

--
Ticket URL: <http://trac.sagemath.org/ticket/18514#comment:86>
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