Added support for compressed textures on linux
Added support for compressed textures on linux


bcampbell/DevIL,Agadoul/DevIL,bcampbell/DevIL,bcampbell/DevIL,bcampbell/DevIL,DentonW/DevIL,DentonW/DevIL,DentonW/DevIL,bcampbell/DevIL,Agadoul/DevIL,bcampbell/DevIL,Agadoul/DevIL,DentonW/DevIL,Agadoul/DevIL,DentonW/DevIL,DentonW/DevIL,Agadoul/DevIL,Agadoul/DevIL