Nautilus-2.6.0 will fail on comple if not using the latest version of libgnomeui. The configure.in file needs to be updated. I have got confirmation from nautilus maintainers and the corresponding upstream bug can be found here: http://bugs.gnome.org/show_bug.cgi?id=138068 Reproducible: Always Steps to Reproduce: 1. 2. 3.
Created attachment 27986 [details, diff] ebuild patch diff for nautilus-2.6.0 ebuild
i've applied the gnome.org patch, thanks for the report & fix.