我如何在从Linux移植的C ++项目中使用Open GL [英] How do I use Open GL in a C++ project that I am porting from Linux

问题描述

我刚刚尝试在Mac上编译一个开源C ++应用程序.我收到未找到错误GL/gl.h的文件.我知道这意味着它找不到需要编译和运行的开放式GL库.下一步我很困惑，因为

I just tried to compile an open source C++ application on my Mac. I get the error GL/gl.h file not found. I know that this means that it can't find the open GL library, which it needs to compile and run. I am confused about what to do next because

1. 似乎OS X包含对open gl的内置支持.有没什么下载.
2. 对于OSX和Linux上的OpenGL，头文件名似乎有所不同( 用于OS X&的OpenGL标头Linux )

1. It seems like OS X includes built-in support for open gl. There is nothing to download.
2. It seems like the header file names might be different for OpenGL on OSX and Linux ( OpenGL headers for OS X & Linux )

所以我对下一步做什么感到困惑.我是否可以下载OpenGL并将其链接到我的项目?是否将xcode配置为使用OpenGL的本机版本?我要更改标题吗?

So I am confused about what to do next. Do I download OpenGL and link it to my project? Do I configure xcode to use a native version of OpenGL? Do I change the headers?

有人可以提供更多指导吗?这个答案给出了Windows/Linux的答案-但没有提供OS X: 如何获取GL库/标题?

Can someone provide a little more direction. This answer gave windows/linux answers -- but not OS X: How to get the GL library/headers?

推荐答案

Apple认为，如果它们与其他所有人不兼容，那将是明智之举，并将OpenGL标头放置在名为OpenGL的目录中，而不仅仅是GL.所以你必须使用

Apple thought it was clever if they were incompatible to everybody else and placed the OpenGL headers in a directory called OpenGL not just GL. So you must use

#include <OpenGL/gl.h>

在Apple系统上和

#include <GL/gl.h>

其他任何地方.编译器预定义的预处理器宏是您的朋友.

everywhere else. Compiler predefined preprocessor macros are your friend here.

#ifdef __APPLE__
#  include <OpenGL/gl.h>
#else
#  include <GL/gl.h>
#endif/*__APPLE__*/

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