Eclipse，MinGW，Freeglut undefined reference

Question

我一直在尝试编译这个OpenGL教程（最初是针对Visual Studio的），但我一直没有使用未定义的参考资料＆＃39;错误。编译器输出如下：

Info: Internal Builder is used for build
g++ -o OpenGLTutorial.exe "src\\main.o" "src\\Camera.o" -lglew32 -lglu32 -lopengl32 -lfreeglut 
src\main.o: In function `Z6InitGLiPPc':
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:75: undefined reference to `glutInit'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:76: undefined reference to `glutSetOption'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:77: undefined reference to `glutGet'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:78: undefined reference to `glutGet'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:80: undefined reference to `glutInitDisplayMode'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:82: undefined reference to `glutInitContextVersion'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:83: undefined reference to `glutInitContextProfile'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:84: undefined reference to `glutInitContextFlags'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:86: undefined reference to `glutInitWindowPosition'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:87: undefined reference to `glutInitWindowSize'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:89: undefined reference to `glutCreateWindow'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:91: undefined reference to `glutIdleFunc'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:92: undefined reference to `glutDisplayFunc'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:93: undefined reference to `glutKeyboardFunc'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:94: undefined reference to `glutKeyboardUpFunc'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:95: undefined reference to `glutSpecialFunc'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:96: undefined reference to `glutSpecialUpFunc'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:97: undefined reference to `glutMouseFunc'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:98: undefined reference to `glutMotionFunc'
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:99: undefined reference to `glutReshapeFunc'
src\main.o: In function `main':
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:236: undefined reference to `glutMainLoop'
src\main.o: In function `Z9ReshapeGLii':
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:249: undefined reference to `glutPostRedisplay'
src\main.o: In function `Z9DisplayGLv':
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:262: undefined reference to `glutSwapBuffers'
src\main.o: In function `Z6IdleGLv':
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:278: undefined reference to `glutPostRedisplay'
src\main.o: In function `Z10KeyboardGLhii':
C:\Users\jordanrich\Documents\programming\C++\GameDev\OpenGLTutorial\Debug/../src/main.cpp:313: undefined reference to `glutLeaveMainLoop'
collect2.exe: error: ld returned 1 exit status

21:39:05 Build Finished (took 1s.154ms)

谁能告诉我有什么问题？ 如果您需要更多信息来帮助回答问题，请询问。

编辑（一些其他信息）： 正如您从编译器输出中看到的，我已经链接了这些函数所需的库，并且编译器不会抱怨它无法找到所述库。我还将freeglut dll放入二进制文件夹。

Answer 1

这个问题显然主要是由于用户错误而完全是间接的。我正在为可能遇到这个问题的未来的人发布这个。

在我的头文件中，我定义了FREEGLUT_STATIC。将此更改为另一个变量后，链接器不再产生错误。虽然我实际上无法检查 - 至少很容易 - 在我的freeglut库中的某个地方，这个变量被用在ifndef语句中，以确定是否需要链接freeglut（如果已经链接了）。