fileserver data # equery depgraph fuse |grep source
              `-- x11-proto/resourceproto-1.0.2
 `-- sys-kernel/gentoo-sources-2.6.22-r9 (virtual/linux-sources) [ fbcon ]
                    `-- x11-proto/resourceproto-1.0.2
 `-- sys-kernel/gentoo-sources-2.6.22-r9 (virtual/linux-sources) [ kernel_linux ]
                    `-- x11-proto/resourceproto-1.0.2
 `-- sys-kernel/gentoo-sources-2.6.22-r9 (virtual/linux-sources) [ kernel_linux ]
                    `-- x11-proto/resourceproto-1.0.2
 `-- sys-kernel/gentoo-sources-2.6.22-r9 (virtual/linux-sources) [ kernel_linux ]