** Listing the failed packages (*:skipped / !:failed)
        ! x11/xorg-libraries (xorg-libraries-6.9.0)     (unknown build error)
        * x11-fonts/xfs (xorg-fontserver-6.9.0_1)
        * x11-servers/xorg-vfbserver (xorg-vfbserver-6.9.0_2)
        * x11-servers/xorg-printserver (xorg-printserver-6.9.0_2)
        * graphics/cairo (cairo-1.2.4)
        * x11-servers/xorg-server (xorg-server-6.9.0_5)
        * x11-fonts/libXft (libXft-2.1.7_1)
        * misc/gnomehier (gnomehier-2.2)
        * www/links (links-2.1.p21,1)
        * x11-servers/xorg-nestserver (xorg-nestserver-6.9.0_1)
        * x11/xterm (xterm-220)
        * x11/xorg-apps (xorg-clients-6.9.0_3)
        * x11-toolkits/pango (pango-1.14.7)
        * x11-toolkits/gtk20 (gtk-2.10.6_2)
        * devel/gconf2 (gconf2-2.16.0)
--->  Packages processed: 10 done, 51 ignored, 14 skipped and 1 failed