Function pthread_cond_init 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pthread_cond_init(
    cond: *mut pthread_cond_t,
    attr: *const pthread_condattr_t,
) -> c_int

See https://pubs.opengroup.org/onlinepubs/9799919799/functions/pthread_cond_init.html.