* installing *source* package ‘Rhpc’ ... ** this is package ‘Rhpc’ version ‘0.26.4’ ** package ‘Rhpc’ successfully unpacked and MD5 sums checked ** using staged installation checking for gcc... clang -arch x86_64 checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether the compiler supports GNU C... yes checking whether clang -arch x86_64 accepts -g... yes checking for clang -arch x86_64 option to enable C11 features... none needed checking for stdio.h... yes checking for stdlib.h... yes checking for string.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for strings.h... yes checking for sys/stat.h... yes checking for sys/types.h... yes checking for unistd.h... yes checking for sched.h... yes checking for sys/types.h... (cached) yes checking for unistd.h... (cached) yes checking for dlfcn.h... yes checking for sched_getscheduler... no checking for dladdr... yes checking libR check... yes checking for mpicc... no checking for hcc... no checking for mpxlc_r... no checking for mpxlc... no checking for mpcc... no checking for cmpicc... no checking for mpifcc... no checking Compiling of MPI C programs... no configure: error: could not compile MPI program! !!! This package requires MPI environment. !!! See config.log for details ERROR: configuration failed for package ‘Rhpc’ * removing ‘/Volumes/Builds/packages/big-sur-x86_64/results/4.6/Rhpc.Rcheck/Rhpc’