Open Graphics Library (OpenGL) is a cross-language, cross-platform application programming interface (API) for rendering 2D and 3D vector graphics.
The package opengl is compatible with built-in CMake targets via CMake v3.7 and prior syntax
and the CMake v3.8 and beyond imported target syntax
introduction of various components
The OpenGL SDK is highly platform dependent and is usually an OS component. It's not realistic to build from source for every platform.