问题
Like the title says, I'm getting multiple build errors using C::B, all are saying undefined reference to '*'. I'm trying to build a program using OpenGL, GLFW, and GLEW. The top three things that it cant find every time are _imp__CreateDCW@16, _imp__GetDeviceCaps@8, _imp__DeleteDC@4. When looking on the internet, I saw that all of those methods were in the gdi32 library, which I made sure to add to the linker. The error appears to be happening as soon as I try to use methods from GLFW3. I've tried using different builds of GLFW using MinGW, which is what I'm using with Code::Blocks, but I cannot get the error to go away.
I am developing on Windows 8.1, using Code::Blocks 13.12.
Here is a list of everything I am linking and in the same order:
- gdi32
- kernel32
- user32
- opengl32
- glu32
- glfw3
Code::Blocks is turning out to be a bit of a hassle, but I really want to start to get used to it. Thanks to anyone who can help.
回答1:
You've to pass -lgdi32 for the linker to know that you're using GDI functions. Also the order matters. On Windows 8 with MinGW 4.8.1 tool chain I give this:
- glew
- glfw3
- opengl32
- gdi32
And it works for me; I don't include the other win32 libraries. If you're using GLEW's static library make sure you define GLEW_STATIC either in CB or directly as -DGLEW_STATIC.
As for the IDE, I chose QtCreator with CMake and with no Qt SDK.
来源：https://stackoverflow.com/questions/22824709/codeblocks-undefined-reference-to