Enable sdl_gl for SDL2 windows builds
Merge pull request #894 from heuripedes/master

Enable sdl_gl for SDL2 windows builds
(PSP1) Fix build
(settings) Set autoconfig_dir if g_defaults.autoconfig_dir is set
Initial retroarch-qt commit
Use SDL for input and set minimum size
Fix Qt5 build
(retroarch-qt) Add mouse handling
(retroarch-qt) Fix mouse input and add pointer support
(retroarch-qt) Add recipe for (future?) udev support
(retroarch-qt) Remove unused header
(retroarch-qt) Initial keyboard input support commit
(retroarch-qt) Fix keyboard and joypad input
(retroarch-qt) Add Cg shader support
(retroarch-qt) "Predict" when the menu bar is needed in fullscreen
(retroarch-qt) Added some menu items
(retroarch-qt) Implement Core menu
(retroarch-qt) Implement history and content and core loading
(retroarch-qt) Rename some include guards
(retroarch-qt) Add option to clear history