编译器警告说需要DLL接口，咋办啊？

CreateMaster

我这样写代码：
class __declspec(dllexport) A
{
list<MYSTRUCT*> List;//这行编译器警告说List需要DLL接口
};
警告原文：
warning C4251: 'List' : class 'std::list<struct MYSTRUCT*,class std::allocator<struct MYSTRUCT*> >' needs to have dll-interface to be used by clients of class 'A'
咋办啊？

环境：VC++6,DX9