nif_init(void)

er.c

ErlNifFunc funcs[] =
{
    {"native_add", 2, native_add}
};

ErlNifEntry* nif_init(void) {
    static ErlNifEntry entry = {
        2,
        6,
        "er",
        sizeof(funcs) / sizeof(*funcs),
        funcs,
        ((void *)0),
        ((void *)0),
        ((void *)0),
        ((void *)0),
        "beam.vanilla"
    };
    ;
    return &entry;
};