* installing *source* package ‘BayesChange’ ...
** package ‘BayesChange’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
using C++ compiler: ‘Apple clang version 14.0.0 (clang-1400.0.29.202)’
using SDK: ‘MacOSX11.3.sdk’
clang++ -arch arm64 -std=gnu++17 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I. -I../inst/include -DARMA_USE_LAPACK -DARMA_USE_BLAS -I'/Volumes/Builds/packages/big-sur-arm64/Rlib/4.4/Rcpp/include' -I'/Volumes/Builds/packages/big-sur-arm64/Rlib/4.4/RcppArmadillo/include' -I'/Volumes/Builds/packages/big-sur-arm64/Rlib/4.4/RcppGSL/include' -I/opt/R/arm64/include    -fPIC  -falign-functions=64 -Wall -g -O2   -c RcppExports.cpp -o RcppExports.o
clang++ -arch arm64 -std=gnu++17 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I. -I../inst/include -DARMA_USE_LAPACK -DARMA_USE_BLAS -I'/Volumes/Builds/packages/big-sur-arm64/Rlib/4.4/Rcpp/include' -I'/Volumes/Builds/packages/big-sur-arm64/Rlib/4.4/RcppArmadillo/include' -I'/Volumes/Builds/packages/big-sur-arm64/Rlib/4.4/RcppGSL/include' -I/opt/R/arm64/include    -fPIC  -falign-functions=64 -Wall -g -O2   -c code.cpp -o code.o
clang++ -arch arm64 -std=gnu++17 -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -L/Library/Frameworks/R.framework/Resources/lib -L/opt/R/arm64/lib -o BayesChange.so RcppExports.o code.o -L/opt/R/arm64/lib -lgsl -lgslcblas -llapack -lblas -lgfortran -F/Library/Frameworks/R.framework/.. -framework R -Wl,-framework -Wl,CoreFoundation
ld: library not found for -lgfortran
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [BayesChange.so] Error 1
ERROR: compilation failed for package ‘BayesChange’
* removing ‘/Volumes/Builds/packages/big-sur-arm64/results/4.4/BayesChange.Rcheck/BayesChange’