static inline void mp_hal_set_interrupt_char(char c) {}

/* We don't need to provide retries since gint doesn't have EINTR */
#define MP_HAL_RETRY_SYSCALL(ret, syscall, raise) { \
    ret = syscall; \
    if(ret == -1) { \
        int err = errno; \
        raise; \
    } \
}