Callback 함수의 signature가 다를 때 보통 어떻게 하시나요?

#if 0
//----------------------
//함수 포인터 호출 방법
//----------------------
typedef bool (*CALLBACK)(void* user_data);
CALLBACK cf = NULL;
 
void CALLBACK_REGIST(CALLBACK handler)
{
    cf = handler;
    printf("CALLBACK_REGIST\n");
    cf((void*)NULL);
}
 
CALLBACK CALLBACK_FUNCTION(CALLBACK p, void* user_data)
{
    printf("CALLBACK_FUNCTION\n");
}
 
int main(int argc, char** argv) 
{
    CALLBACK_REGIST((CALLBACK)CALLBACK_FUNCTION);
	return 0;
}
#endif

//----------------------
//콜백함수 호출 방법
//----------------------
 
typedef struct _MyFunctionWrapperArg {
  int a;
  int b;
  int c;
}MyFunctionWrapperArg;
 
typedef bool (*CALLBACK)(void* user_data);
CALLBACK callback_register(CALLBACK callback_fn, void* user_data)
{
    printf("callback_register\n");
}
 
CALLBACK my_function(int a, int b, int c)
{
    printf("my_function\n");
}
 
CALLBACK my_function_wrapper(MyFunctionWrapperArg* arg)
{
    printf("my_function_wrapper\n");
    return my_function(arg->a, arg->b, arg->c);
}
 
int main(int argc, char** argv) 
{
    callback_register((CALLBACK)my_function_wrapper, NULL);
	return 0;
}