Hi shirish, one does not simply transition from sdl1.2-mixer to sdl2-mixer!
For sdl2-mixer you need sdl2 first and porting from sdl1.2 to sdl2 is a major rework that is highly non-trivial for many packages.
So, you either have sdl1.2 with sdl1.2-mixer or you have sdl2 with sdl2-mixer, but the mogration from the former to the latter requires a lot of porting work.
- Fabian
