DevIL library is out of date.

[NeilJed]

VTFEdit and VTFCmd expect an old version of DevIL which is no longer available. Newer versions have vastly changed codewise and don't work as a direct drop-in replacement.

VTFEdit and VTFCmd need to be updated to either use a newer version of DevIL or switch to a different image input/output library.

[NeilJed]

Currently considering switching to using FreeImage as it does the basic Image IO stuff that DevIL was used for an is still maintained.