添加__declspec(dllexport)会中断我的静态库的链接 [英] Adding __declspec(dllexport) breaks linkage of my static library
问题描述
我有一个带有两个C ++项目的VS 2010解决方案。一个生成一个应用程序(.exe)。另一个产生静态库(.lib)。该应用程序使用静态库。解决方案构建,应用程序按预期执行。该课程声明如下。
class MyClass
{
public:
static void MyFunc(void);
};
如果类声明更改如下:
class __ declspec(dllexport) MyClass
{
public:
static void MyFunc(void);
};
应用程序(.exe)构建失败,并显示以下错误消息。
.obj:错误LNK2019:未解析的外部符号__declspec(dllimport)public:static
为什么?
我尝试了什么:
在网上搜索并没有找到解释
I have a VS 2010 solution with two C++ projects. One produces an application (.exe). The other produces a static library (.lib). The application uses the static library. The solution builds and the application executes as expected. The class is declared as follows.
class MyClass
{
public:
static void MyFunc(void);
};
if the class declaration is changed as follows:
class __declspec(dllexport) MyClass
{
public:
static void MyFunc(void);
};
The application (.exe) build fails with the following error message.
.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: static
Why ?
What I have tried:
searched the web and did not find an explanation
推荐答案
您正在创建静态库,而不是dll,因此不要使用 __declspec(dllexport) )
。您只需确保为静态库设置项目构建,并确保您的应用程序包含使用此项目生成的.lib文件。
You are creating a static library, not a dll, so you do not use __declspec(dllexport)
. You just need to ensure that your project build is set for a static library, and that your application includes the .lib file that this project produces.
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