Install cpp-8-riscv64-linux-gnu by entering the following commands in the terminal:
sudo apt update sudo apt install cpp-8-riscv64-linux-gnu
GNU C preprocessor
A macro processor that is used automatically by the GNU C compiler to transform programs before actual compilation. . This package has been separated from gcc for the benefit of those who require the preprocessor but not the compiler. . This package contains preprocessor configured for riscv64 architecture.