make failed

[MUSHAYYA]

@macbook-pro rkdeveloptool % make -j $(nproc)
zsh: command not found: nproc
g++ -DHAVE_CONFIG_H -I. -I./cfg -Wall -Werror -Wextra -Wreturn-type -fno-strict-aliasing -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE -I/opt/homebrew/Cellar/libusb/1.0.28/include/libusb-1.0 -I/opt/homebrew/opt/libpq/include -g -O2 -MT main.o -MD -MP -MF .deps/main.Tpo -c -o main.o main.cpp
main.cpp:2563:12: error: variable length arrays in C++ are a Clang extension [-Werror,-Wvla-cxx-extension]
2563 | BYTE pBuf[nSectorSize * DEFAULT_RW_LBA];
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
main.cpp:2563:12: note: read of non-const variable 'nSectorSize' is not allowed in a constant expression
main.cpp:2562:6: note: declared here
2562 | int nSectorSize = 512;
| ^
main.cpp:2935:12: error: variable length arrays in C++ are a Clang extension [-Werror,-Wvla-cxx-extension]
2935 | BYTE pBuf[nSectorSize * DEFAULT_RW_LBA];
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
main.cpp:2935:12: note: read of non-const variable 'nSectorSize' is not allowed in a constant expression
main.cpp:2934:6: note: declared here
2934 | int nSectorSize = 512;
| ^
2 errors generated.
make[1]: *** [main.o] Error 1
make: *** [all-recursive] Error 1