simplify makefile rules for targets
Don't use GLSYM
Don't crash if two audio streams have different formats.
Go through new logger interface
Update libretro.h
(OSX) Set min OS version to 10.6
Add ppsspp-ffmpeg
Drop use of deprecated APIs.
Use correct colorspace in libswscale.
Get rid of baked-in ffmpeg
Add OSX version minor detection to Makefile
Do "fairly" gamma-correct temporal lerp.