cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations net_if/if_indextoname.c -o net_if/if_indextoname -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt 
relibc getrlimit(3, 0x7ffffffffc80): not implemented
relibc getrlimit(3, 0x7ffffffffbb0): not implemented
relibc getrlimit(9, 0x7ffffffffb70): not implemented
relibc getrlimit(9, 0x7ffffffffba0): not implemented
relibc getrlimit(5, 0x7ffffffffba0): not implemented
relibc getrlimit(9, 0x7ffffffffb70): not implemented
net_if/if_indextoname.c:5:34: error: initialization of 'char * (*)(unsigned int,  char *)' from incompatible pointer type 'const char * (*)(unsigned int,  char *)' [-Werror=incompatible-pointer-types]
    5 | char *(*foo)(unsigned, char *) = if_indextoname;
      |                                  ^~~~~~~~~~~~~~
cc1: all warnings being treated as errors