Please see R-sig-Mac for Prof. Brian Ripley's message about test candidate macOS R-spatial package binaries using PROJ, GEOS and GDAL: https://stat.ethz.ch/pipermail/r-sig-mac/2020-June/013599.html Please report back in that thread if you have tried these builds. Roger
Roger Bivand Department of Economics, Norwegian School of Economics, Helleveien 30, N-5045 Bergen, Norway. voice: +47 55 95 93 55; e-mail: Roger.Bivand at nhh.no https://orcid.org/0000-0003-2392-6140 https://scholar.google.no/citations?user=AWeghB0AAAAJ&hl=en