If you want to build R from the svn repository you need svn (subversion). Xcode 10 has removed svn so it is no loner available from Apple, we are providing a binary (cmopatible with OS X 10.11 and higher) in https://mac.r-project.org/tools/ (in "optional tools and libraries" at the bottom), direct link: https://mac.r-project.org/tools/subversion-1.14.0-darwin15.6.tar.gz It is a single-file signed, static build so has no dependencies and can be run from anywhere.
Cheers, Simon _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac