[R-SIG-Mac] Packages with updated spatial libraries.

[Prof Brian Ripley]

I have put binary packages on CRANextras for lwgeom rgdal rgeos sf built 
with GEOS 3.8.1, GDAL 3.1.0, PROJ 6.3.2.

Install with (e.g.)

options(repos="https://www.stats.ox.ac.uk/pub/RWin")
install.packages('rgdal', type = 'binary')

(This needed a development version of the rgdal sources.)

This is just to allow early access: it is planned to use these versions 
of the libs on the CRAN builders soon (but they do need package updates, 
e.g. for rgdal and proj4).

These are all using static libraries to make these self-contained.

(In case anyone is wondering why not PROJ 7 -- that would need 
unreleased changes to the PROJ and GDAL sources and changes to many CRAN 
packages.)

-- 
Brian D. Ripley,                  ripley using stats.ox.ac.uk
Emeritus Professor of Applied Statistics, University of Oxford