math/R: Upcoming major version update

[Joseph Mingrone]

Jason Bacon <bacon4000 at gmail.com> writes:

> On 2020-04-25 22:50, Joseph Mingrone wrote:
>> Hello all,

>> You are receiving this message because you maintain a port that has a
>> run-time dependency on math/R.  This is a heads-up that math/R will be
>> updated to version 4.0.0.  As this is a major version change, R packages
>> will also need to be rebuilt.  Unless there are some unforeseen
>> problems, I will try to do this update tomorrow.  I will also do a
>> PORTREVISION bump for these dependent ports.  Please let me know if this
>> is a problem.

>> https://reviews.freebsd.org/D24572

>> Regards,

>> Joseph

> Thanks for your work on this!

> Do you have any estimate of how many R-cran packages this might break?  I've seen some that are persnickety about R versions and I suspect a new 
> major version will cause some issues.

> Perhaps we can investigate this and head off problems before the new R version is committed.

> Cheers,

>     JB

No rush.  We can wait a bit.  There could be some run-time breakage [1] .  I can do build tests.

J.

[1] * R now uses a stringsAsFactors = FALSE default, and hence by
      default no longer converts strings to factors in calls to
      data.frame() and read.table().

      A large number of packages relied on the previous behaviour and
      so have needed/will need updating.
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