* installing *source* package ‘FuzzySimRes’ ...
** package ‘FuzzySimRes’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
using C compiler: ‘Apple clang version 14.0.3 (clang-1403.0.22.14.1)’
using SDK: ‘NA’
clang -arch arm64 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG   -I/opt/R/arm64/include    -fPIC  -falign-functions=64 -Wall -g -O2  -c kolmim.c -o kolmim.o
clang -arch arm64 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG   -I/opt/R/arm64/include    -fPIC  -falign-functions=64 -Wall -g -O2  -c ks.c -o ks.o
In file included from kolmim.c:22:
/Library/Frameworks/R.framework/Resources/include/R.h:43:11: fatal error: 'stdlib.h' file not found
# include <stdlib.h> /* Not used by R itself, but widely assumed in packages */
          ^~~~~~~~~~
In file included from ks.c:26:
/Library/Frameworks/R.framework/Resources/include/R.h:43:11: fatal error: 'stdlib.h' file not found
# include <stdlib.h> /* Not used by R itself, but widely assumed in packages */
          ^~~~~~~~~~
1 error generated.
1 error generated.
make: *** [kolmim.o] Error 1
make: *** Waiting for unfinished jobs....
make: *** [ks.o] Error 1
ERROR: compilation failed for package ‘FuzzySimRes’
* removing ‘/Volumes/Builds/packages/big-sur-arm64/results/4.4/FuzzySimRes.Rcheck/FuzzySimRes’