Linking GLEW and others, _glViewport is the only unresolved

问题

I'm using G++ to link my project to glew32, glfw, opengl32, glu32, etc, everything compiles fine - however at the link stage everything but glViewport links and I get this error:

undefined reference to '_glViewport'.

I find this... odd since everything else was fine and I'm kinda at a loss for what to do. I look forward to any advice on what to try and or do.

回答1:

As per my comment, you need to link with the OpenGL libraries, when you compile do (Linux/cygwin)

g++ -o target source.c -lGL

To link against the the OpenGL libs on Mac OSX it is

g++ -o target source.c -framework OpenGL

来源：https://stackoverflow.com/questions/9879770/linking-glew-and-others-glviewport-is-the-only-unresolved