dri/drm: Fix compiling issues on simple MacOS AppleGL build
A collection of code guards and extra build dependency to allow MESA to build on MacOS.
MESA will build using just the default options. No use of 'osmesa' or 'glx' is needed.
A collection of code guards and extra build dependency to allow MESA to build on MacOS.
MESA will build using just the default options. No use of 'osmesa' or 'glx' is needed.