#19602: Fix dependencies on libraries
-------------------------------------+-------------------------------------
       Reporter:  jdemeyer           |        Owner:
           Type:  defect             |       Status:  positive_review
       Priority:  major              |    Milestone:  sage-
      Component:  build              |  duplicate/invalid/wontfix
       Keywords:                     |   Resolution:
        Authors:                     |    Merged in:
Report Upstream:  N/A                |    Reviewers:  Leif Leonhardy,
         Branch:                     |  Volker Braun
  u/jdemeyer/cython_depends          |  Work issues:
   Dependencies:                     |       Commit:
                                     |  87834f093c507475c20e5c23991ad0f091aca03f
                                     |     Stopgaps:
-------------------------------------+-------------------------------------

Comment (by leif):

 So are we confident that

  * this is currently true for all libraries, i.e., an update (or just
 reinstallation) of each of them causes some of their header(s) to have
 newer timestamps,
  * all modules linking to them explicitly depend on those,
  * it's sufficiently documented, both for spkg maintainers creating or
 updating spkgs as well as for reviewers such that they check this still
 holds?

 (I recall in the past occasionally some updates only incidentally worked,
 but I'm not aware of current trouble besides what Jeroen discovered
 regarding "overlinking" either.  No idea of how well-documented or -known
 the potential problems are.)

--
Ticket URL: <http://trac.sagemath.org/ticket/19602#comment:19>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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