clang -O2  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations netinet_in/htonl.c -o netinet_in/htonl -D_POSIX_C_SOURCE=202405L  -lm  -lintl
netinet_in/htonl.c:3:29: error: use of undeclared identifier 'htonl'
uint32_t (*foo)(uint32_t) = htonl;
                            ^
1 error generated.