Gentoo doesn't currently ship an nvidia-texture-tools. DevIL, however, checks for it. Right now building DevIL breaks when a manually installed nvidia-texture-tools is present (bug 260743). To avoid having an "automagic" dependency on nvidia-texture-tools, disable the check for it for now.
Created attachment 184145 [details] Patch to be applied to DevIL to disable NVTT check This patch needs to be applied to the DevIL sources to disable the check for nvidia-texture-tools.
Created attachment 184147 [details, diff] Patch to DevIL ebuild to apply the NVTT check removal This changes the DevIL ebuild to apply the patch from attachment 184145 [details].
Reassigning to games herd.
Hmmmm, technically, this bug is invalid since we don't really support out-of-tree mods to the system but it's fine to remove support for nvtt until or if it's ever in the portage treee. in portage.