* installing *source* package ‘units’ ...
** package ‘units’ successfully unpacked and MD5 sums checked
** using staged installation
configure: units: 0.8-5
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 arm64 -std=gnu++14 accepts -g... yes
checking for clang++ -arch arm64 -std=gnu++14 option to enable C++11 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 _Bool... no
checking for stdbool.h that conforms to C99... yes
checking for error_at_line... no
checking for gcc... clang -arch arm64
checking whether the compiler supports GNU C... yes
checking whether clang -arch arm64 accepts -g... yes
checking for clang -arch arm64 option to enable C11 features... none needed
checking for XML_ParserCreate in -lexpat... yes
checking for udunits2.h... yes
checking for ut_read_xml in -ludunits2... yes
configure: creating ./config.status
config.status: creating src/Makevars
** libs
clang++ -arch arm64 -std=gnu++14 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -DUDUNITS2_DIR=0   -I/opt/R/arm64/include -I'/Volumes/Builds/packages/big-sur-arm64/Rlib/4.2/Rcpp/include' -I/opt/R/arm64/include   -fPIC  -falign-functions=64 -Wall -g -O2  -c RcppExports.cpp -o RcppExports.o
clang++ -arch arm64 -std=gnu++14 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -DUDUNITS2_DIR=0   -I/opt/R/arm64/include -I'/Volumes/Builds/packages/big-sur-arm64/Rlib/4.2/Rcpp/include' -I/opt/R/arm64/include   -fPIC  -falign-functions=64 -Wall -g -O2  -c udunits.cpp -o udunits.o
clang++ -arch arm64 -std=gnu++14 -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -single_module -multiply_defined suppress -L/Library/Frameworks/R.framework/Resources/lib -L/opt/R/arm64/lib -o units.so RcppExports.o udunits.o -lexpat -lexpat -ludunits2 -F/Library/Frameworks/R.framework/.. -framework R -Wl,-framework -Wl,CoreFoundation
installing to /Volumes/Builds/packages/big-sur-arm64/results/4.2/units.Rcheck/00LOCK-units/00new/units/libs
** generating debug symbols (dSYM)
** R
** demo
** inst
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
** building package indices
** installing vignettes
** testing if installed package can be loaded from temporary location
** checking absolute paths in shared objects and dynamic libraries
** testing if installed package can be loaded from final location
** testing if installed package keeps a record of temporary installation path
* DONE (units)