Derelict SFML2 - structs are forward referenced

[Lucien via Digitalmars-d-learn]

On Saturday, 26 December 2015 at 12:47:51 UTC, drug wrote:
> You have old version of libcsfml that lacks of symbol 
> sfJoystick_getIdentification. Try another version, may be build 
> it from sources to have the newest one.

Indeed, the sfml library in the ubuntu repository isn't 
up-to-date.

Thanks for your help.