Hi, I am experimenting since some days to find the “best” compiler toolchain for R-devel to get R-devel package source installs on the new macOS Github Actions runners work in a somewhat stable way. I am also on macOS locally which I use for testing as well.
I am aware of https://github.com/rmacoslib/r-macos-rtools. However, using clang7 for all (CC, CXX, etc) leads to some packages failing to build (sometimes due to missing OpenMP capabilities, sometimes undefined). Therefore I decided to try out gcc (v8 and v9). While this solves most of the OpenMP issues, I am running into problems for other packages regarding CC compilation. Turns out that using any clang version for CC solves most problems but not all. However then I have a mix of gcc and clang which is most likely cause other issues. Currently Jeroen is developing a new gcc8 based toolchain for Windows. I was reading the macOS CRAN dev pages but could not find any reasoning why • clang7 is suggested • gcc is not used • What future plans are there for the toolchain on macOS Could someone shine some light on this? Thanks :) Cheers, Patrick [[alternative HTML version deleted]] _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac
