OpenGL support was retired back around macOS 10.14. Various of the GL support was retired back around OS X 10.9, and GLUT (OpenGL Utility Toolkit) was then used. How much code-level work do you want to do here? You can try setting your deployment target version back in Xcode. Maybe that gets you working? Or can make some code changes: maybe one or the other of the following helps pick up the necessary GL definitions: #include #include
Topic:
App & System Services
SubTopic:
Core OS
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