如何求解LNK2005:已定义

Question

我正在与Lua和Luabind to C++合作一个项目。现在，在我想要导出到C++的每个类中，我编写了一个静态方法Register，如下所示：

在Button.h中：

static luabind::scope Register();

在Button.cpp中：

luabind::scope falcon::Button::Register()
{
    return 
        luabind::class_<Button, Button*>("Button")
        .def(luabind::constructor<float, float, float, float>());
}

对于我已经导出到Lua的每个类，这都可以很好地工作。但对于Button.cpp来说，这似乎行不通。

我得到以下链接器错误：

1>luabindd.lib(luabindd.dll) : error LNK2005: "public: __thiscall luabind::detail::class_base::~class_base(void)" (??1class_base@detail@luabind@@QAE@XZ) already defined in Button.obj
1>luabindd.lib(luabindd.dll) : error LNK2005: "public: __thiscall luabind::detail::function_object::function_object(int (__cdecl*)(struct lua_State *))" (??0function_object@detail@luabind@@QAE@P6AHPAUlua_State@@@Z@Z) already defined in Button.obj
1>luabindd.lib(luabindd.dll) : error LNK2005: "public: virtual __thiscall luabind::detail::function_object::~function_object(void)" (??1function_object@detail@luabind@@UAE@XZ) already defined in Button.obj
1>luabindd.lib(luabindd.dll) : error LNK2005: "public: __thiscall luabind::detail::invoke_context::operator bool(void)const " (??Binvoke_context@detail@luabind@@QBE_NXZ) already defined in Button.obj
1>luabindd.lib(luabindd.dll) : error LNK2005: "public: __thiscall luabind::detail::invoke_context::invoke_context(void)" (??0invoke_context@detail@luabind@@QAE@XZ) already defined in Button.obj
1>luabindd.lib(luabindd.dll) : error LNK2005: "public: void __thiscall luabind::detail::object_rep::set_instance(class luabind::detail::instance_holder *)" (?set_instance@object_rep@detail@luabind@@QAEXPAVinstance_holder@23@@Z) already defined in Button.obj
1>luabindd.lib(luabindd.dll) : error LNK2005: "public: void * __thiscall luabind::detail::object_rep::allocate(unsigned int)" (?allocate@object_rep@detail@luabind@@QAEPAXI@Z) already defined in Button.obj
1>luabindd.lib(luabindd.dll) : error LNK2005: "public: class luabind::detail::class_rep * __thiscall luabind::detail::object_rep::crep(void)" (?crep@object_rep@detail@luabind@@QAEPAVclass_rep@23@XZ) already defined in Button.obj
1>luabindd.lib(luabindd.dll) : error LNK2005: "public: class luabind::detail::cast_graph const & __thiscall luabind::detail::class_rep::casts(void)const " (?casts@class_rep@detail@luabind@@QBEABVcast_graph@23@XZ) already defined in Button.obj
1>LINK : warning LNK4098: defaultlib 'LIBCMT' conflicts with use of other libs; use /NODEFAULTLIB:library
1>D:\Users\THijs\Dropbox\3DAE\Platform Development\Falcon Engine\main\FalconEngine\Debug\FalconEngine.exe : fatal error LNK1169: one or more multiply defined symbols found

有人有什么想法吗？

Answer 1

我只是通过在headerfile中定义和声明函数来解决这个错误...也许任何人都可以向我解释为什么必须为这个类这样做，而不是为我想要注册到Lua的其他10个类？！

这有点奇怪，因为我在.cpp的其他类中实现了这个函数……