/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/../../../../i686-pc-linux-gnu/bin/ld: cannot find -lXext
collect2: ld returned 1 exit status
make[2]: *** [libmythavcodec-0.20.so.0.20.0] Error 1
make[2]: Leaving directory `/var/tmp/portage/mythtv-0.20_p11444/work/mythtv-0.20/libs/libavcodec'
make[1]: *** [sub-libavcodec] Error 2
make[1]: Leaving directory `/var/tmp/portage/mythtv-0.20_p11444/work/mythtv-0.20/libs'
make: *** [sub-libs] Error 2

!!! ERROR: media-tv/mythtv-0.20_p11444 failed.
Call stack:
  ebuild.sh, line 1546:   Called dyn_compile
  ebuild.sh, line 937:   Called src_compile
  mythtv-0.20_p11444.ebuild, line 199:   Called die