I'm looking for a good source of GLES2 samples for C++ (or C) on x86 Linux with Xorg. The samples I can find are all in Objective C for iOS, or Java for Android, or JavaScript for WebGL. The Kronos web site has a "tutorials" section that contains two lines saying "our tutorials index will go here." Given that GLES2 is 5 years old, I don't have much hope on a sudden surge of content there.
I already know OpenGL pretty well. I'd just like some convenient source for copy-and-paste context set-up code, really. Where can I find something like that?