For the 3d previsualization to work wings3d is needed. In 2006 versions of the ebuild was OK, i don't know why and who remove that dependecy. Reproducible: Always
02 Jun 2007; Denis Dupeyron <calchan@gentoo.org> kicad-20060828.ebuild, kicad-20070115.ebuild, kicad-20070525.ebuild: Removed media-gfx/wings dependency in favor of a postinst message suggesting to install it manually, in order to ease installation and stabilization of kicad.