* installing *source* package ‘Rmpi’ ...
** this is package ‘Rmpi’ version ‘0.7-3.3’
** package ‘Rmpi’ successfully unpacked and MD5 sums checked
** using staged installation
checking for gcc... clang -arch arm64 -std=gnu2x
checking whether the C compiler works... no
configure: error: in `/Volumes/Builds/packages/big-sur-arm64/results/4.5/Rmpi.Rcheck/00_pkg_src/Rmpi':
configure: error: C compiler cannot create executables
See `config.log' for more details
ERROR: configuration failed for package ‘Rmpi’
* removing ‘/Volumes/Builds/packages/big-sur-arm64/results/4.5/Rmpi.Rcheck/Rmpi’