Hi Dirk and others, On Fri, Sep 08, 2017 at 12:29:25PM -0500, Dirk Eddelbuettel wrote:
> | The problem is that you can end up with r-bioc-makecdfenv_1.50.0-1 (i.e. > before > | the rebuild) and r-base_3.4.1-2, because nothing prevents that combination. > > You may misunderstand. Only packages that > > - have compiled code (ie arch: any, and a src/ directory) > - use .C() and .Fortran() > - actually use the up until recently optional registration > - have been built with R (<< 3.4.0) The point made by the Release Team is that packages that fulfill these 4 criterias may still be installed on system where R has been upgraded to 3.4. Such a bad combination can happen if a user does a partial upgrade from stretch to (upcoming) buster, by upgrading R core but not the CRAN packages fulfilling the 4 criterias. In that case the user ends up with a broken system (in the sense that those non-upgraded CRAN packages are not functional). I understand that this situation is not going to happen very often, but it may happen, and the Release Team wants to prevent this by introducing a Breaks relationship. Of course, please correct me if I am wrong. Cheers, -- ⢀⣴⠾⠻⢶⣦⠀ Sébastien Villemot ⣾⠁⢠⠒⠀⣿⡁ Debian Developer ⢿⡄⠘⠷⠚⠋⠀ http://sebastien.villemot.name ⠈⠳⣄⠀⠀⠀⠀ http://www.debian.org
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