Derelict SDL2 library not loading on OS X

[Joel via Digitalmars-d-learn]

Now I get this:

Joels-MacBook-Pro:dere joelcnz$ ./app
derelict.util.exception.SymbolLoadException at source/derelict/util/exception.d(35): 
Failed to load symbol SDL_GameControllerAddMapping from shared 
library /usr/local/lib/libSDL2.dylib