On 01/09/17 13:25, Dirk Eddelbuettel wrote: > > Emilio, > > Thanks for your follow-up. I will try to get to each point. > > On 1 September 2017 at 11:42, Emilio Pozuelo Monfort wrote: > | What Niels meant is whether having an old, non-rebuilt R module with the new > | r-base works, > > Yes, in general, and here in this case.
Then I don't understand why these binNMUs are needed. >From #861333 OP: "With current R, R packages built for Debian before the upload of R 3.3.3.20170413-1 on 14 April that use .C or .Fortran do no work properly, because the functions calling .C or .Fortran do not find the compiled objects." That tells me that if you upgrade R but don't upgrade some modules, those will (partially) break. Hence we need either an ABI bump, or versioned breaks against the affected modules in r-base. Cheers, Emilio