Marcus von Appen
The autotools-based code uses X_CFLAGS and some hackish x_includes code to add some necessary includes to SDL_CFLAGS for proper X11 and OpenGL include handling.
At the moment, the cmake-baed build code does not do that. Below is a patch, which provides the necessary changes to add a proper include to the SDL_CFLAGS.
My recent change broke the sdlcheck.cmake by not escaping some quotes properly.
Thanks to Marcus von Appen for pointing it out and providing the patch.
This #errors if you're using an SDK or deployment target that is less
than 10.6 and 10.5, respectively, and cleans up uses of
MAC_OS_X_VERSION_MIN_REQUIRED and MAC_OS_X_VERSION_MAX_ALLOWED according
to those requirements.
