cc -O2 -pipe -pthread -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations endian/uint16_t.c -o endian/uint16_t -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lstdthreads -lcrypt endian/uint16_t.c:2:1: error: unknown type name 'uint16_t' 2 | uint16_t* foo; | ^ 1 error generated.