** Listing the failed packages (*:skipped / !:failed)
        ! x11/xorg-libraries (xorg-libraries-6.9.0)     (unknown build error)
        * graphics/dri (dri-6.4.1,2)
        * x11-servers/xorg-vfbserver (xorg-vfbserver-6.9.0_2)
        * x11-servers/xorg-printserver (xorg-printserver-6.9.0_2)
        * x11/xterm (xterm-220)
        * x11/xorg-apps (xorg-clients-6.9.0_3)
        * x11-servers/xorg-nestserver (xorg-nestserver-6.9.0_1)
        * x11-fonts/xfs (xorg-fontserver-6.9.0_1)
        * x11-servers/xorg-server (xorg-server-6.9.0_5)
        * x11/xorg (xorg-6.9.0)
--->  Packages processed: 15 done, 2 ignored, 9 skipped and 1 failed