Seems like at the moment x11-libs/gdk-pixbuf does't support webp format even if webp use-flag is enabled systemwide. Reproducible: Always Steps to Reproduce: 1. emerge x11-libs/gdk-pixbuf
Created attachment 800073 [details, diff] Adding webp support
You would need to pass something to configure too, I assume.
(In reply to Sam James from comment #2) > You would need to pass something to configure too, I assume. Nope, we just should install loader for it.
Optional runtime dependencies are not allowed: https://projects.gentoo.org/qa/policy-guide/dependencies.html Add an optfeature or elog in pkg_postinst instead.
(In reply to Stephan Hartmann from comment #4) > Optional runtime dependencies are not allowed: > https://projects.gentoo.org/qa/policy-guide/dependencies.html > Add an optfeature or elog in pkg_postinst instead. This is not that user assume get when adding webp to systemwide USE-flags.
*** This bug has been marked as a duplicate of bug 703866 ***