* installing *source* package ‘fRLR’ ... ** package ‘fRLR’ successfully unpacked and MD5 sums checked ** using staged installation checking for gsl-config... /opt/R/x86_64/bin/gsl-config 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 we are using the GNU C compiler... yes checking whether clang -arch x86_64 accepts -g... yes checking for clang -arch x86_64 option to accept ISO C89... none needed checking how to run the C preprocessor... clang -arch x86_64 -E checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking for ANSI C header files... rm: conftest.dSYM: is a directory rm: conftest.dSYM: is a directory yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking omp.h usability... yes checking omp.h presence... yes checking for omp.h... yes configure: creating ./config.status config.status: creating src/Makevars ** libs using C++ compiler: ‘Apple clang version 14.0.3 (clang-1403.0.22.14.1)’ using SDK: ‘MacOSX11.3.sdk’ clang++ -arch x86_64 -std=gnu++17 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I/opt/R/x86_64/include -fopenmp -I'/Volumes/Builds/packages/big-sur-x86_64/Rlib/4.4/Rcpp/include' -I/opt/R/x86_64/include -fPIC -falign-functions=64 -Wall -g -O2 -c RcppExports.cpp -o RcppExports.o clang++ -arch x86_64 -std=gnu++17 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I/opt/R/x86_64/include -fopenmp -I'/Volumes/Builds/packages/big-sur-x86_64/Rlib/4.4/Rcpp/include' -I/opt/R/x86_64/include -fPIC -falign-functions=64 -Wall -g -O2 -c frlr.cpp -o frlr.o clang: error: unsupported option '-fopenmp' clang: error: unsupported option '-fopenmp' make: *** [frlr.o] Error 1 make: *** Waiting for unfinished jobs.... make: *** [RcppExports.o] Error 1 ERROR: compilation failed for package ‘fRLR’ * removing ‘/Volumes/Builds/packages/big-sur-x86_64/results/4.4/fRLR.Rcheck/fRLR’