I like the version of Retroarch that comes with 4.5.1 since I am more familiar with it, so I would rather not recompile from the source unless there is a way to preserve my current version???
The recent versions of RetroArch don't have the sorting patch, it's not needed anymore.
Is there way to prohibit the player 2 controller from being able to operate emulation station (e.g not work the cursor to pick games)? That way I could know which controller is player 1 or player 2 very quickly.
That's going to work only if you don't configure the gamepad in EmulationStation.