c++ - OpenGL GLFW 构建错误或链接错误

Question

有人可以帮助我让 GLFW 在 Visual Studio 2012 中工作吗？我无法通过初始编译。我不断收到 GLFW 函数 Unresolved external 问题。问题是，我不知道我做错了什么。我可以:

• 使用 CMake 不正确地制作源文件。
• 图书馆 build 不当。
• 不正确地链接到 GLFW 库。

我不确定是哪一个，所以我只列出我所做的:

1. Downloaded glfw-3.1.1 from glfw.org.
2. Used CMake GUI to make the source files.
    a. Set source code to C:/GLFW/glfw-3.1.1
    b. Set "Where to build the binaries" to C:/GLFW/glfw-3.1.1/GLFW_Built (I created that directory)
    c. Clicked "Configure" 
    d. Selected "Visual Studio 11 2012" as the generator (I also tried "Visual Studio 11 2012 Win64," but it gave me the same results. The ARM one wouldn't build at all)
    e. Left "Use default native compilers" selected.
    f. Clicked "Finish."
    g. Set "BUILD_SHARED_LIBS" to true (checked).
    h. Clicked "Generate."
3. Built the library.
    a. Went to C:\GLFW\glfw-3.1.1\GLFW_Built and opened GLFW.sln in Visual Studio 2012.
    b. Clicked BUILD->Build ALL_BUILD (worked fine, no errors)
4. Created a new blank project in Visual Studio 2012.
5. Went into the properties pages and set:
    a. Configuration Properties/VC++ Directories/Include Directories: added "C:\GLFW\glfw-3.1.1\include"
    b. Configuration Properties/VC++ Directories/Library Directories: added "C:\GLFW\glfw-3.1.1\GLFW_Built\CMakeFiles\Export\lib" (it was the only lib folder I saw) and "C:\GLFW\glfw-3.1.1\GLFW_Built\src\Debug" (contains glfw3.dll and glfw3dll.lib)
    c. Configuration Properties/C/C++/Additional Include Directories: added "C:\GLFW\glfw-3.1.1\include"
    d. Configuration Properties/Linker/General: added "C:\GLFW\glfw-3.1.1\GLFW_Built\src\Debug
    e. Configuration Properties/Linker/Input: added "glfw3dll.lib" and "opengl32.lib"

对于我的代码，我在 main.cpp 中只有一个非常简单的测试程序:

#include <GLFW/glfw3.h>
#include <thread>

int main()
{
    glfwInit();
    std::this_thread::sleep_for(std::chrono::seconds(1));
    glfwTerminate();
}

但我总是在输出中得到这个:

1>main.obj : error LNK2019: unresolved external symbol _glfwInit referenced in function _main
1>main.obj : error LNK2019: unresolved external symbol _glfwTerminate referenced in function _main
1>C:\Users\Adam\Desktop\Revenant\Revenant\Debug\Revenant.exe : fatal error LNK1120: 2 unresolved externals

Answer 1

将 GLFW 解压缩到 C:\glfw-src(这样压缩包中的 CMakeLists.txt 位于 C:\glfw-src\CMakeLists.txt )

• cd C:\glfw-src
• mkdir 构建
• cd 构建
• cmake-gui ../
• 按配置，选择工具链
• 将CMAKE_INSTALL_PREFIX设置为C:/glfw
• 创建c:\glfw目录
• 再次按配置
• 按生成
• 在 Visual Studio 中打开 build\GLFW.sln
• 构建 ALL_BUILD 项目的 Release 版本
• 构建 INSTALL 项目的发布版本

C:\glfw 现在应该包含 include 和 lib 目录。

假设一个全新的“空项目”解决方案:

• 编译器:将 c:\glfw\include 添加到 /I(配置属性 -> C/C++ -> 常规 -> 附加包含目录)
• 链接器:将 c:\glfw\lib 添加到 /LIBPATH(配置属性 -> 链接器 -> 常规 -> 其他库目录)并添加 glfw3 .lib 和 opengl32.lib 到 /DYNAMICBASE(配置属性 -> 链接器 -> 输入 -> 附加依赖项)