jp9000/obs-studio — pull request #21 by computerquip (2014-01-06 23:25:21+00:00)
Title: Various Changes to OpenGL intialization

I removed all extension checking code to gl-subsystem.c as it needs to be called on all platforms and does not change given a platform.
I added a function and tables to handle OpenGL debug and error messages via the ARB_debug_output extension or via the GL 4.0 API if available.
I removed the hardcoded request for a 3.2 context on Linux and Windows. It will now given the latest context given it fits our requirements (which is just a core profile and debug context if _DEBUG is set currently).

Snuck in was a change to autoconf that allows autoconf to correctly find wxWidgets 2.9 (or greater) with wx-config (not just wx-config-2.9) without user interaction.