The xvmc unit tests are failing on r300g and r600g.
Reviewed-by: Vinson Lee <vlee@freedesktop.org>
[AS_HELP_STRING([--enable-xvmc],
[enable xvmc library @<:@default=auto@:>@])],
[enable_xvmc="$enableval"],
[AS_HELP_STRING([--enable-xvmc],
[enable xvmc library @<:@default=auto@:>@])],
[enable_xvmc="$enableval"],
AC_ARG_ENABLE([vdpau],
[AS_HELP_STRING([--enable-vdpau],
[enable vdpau library @<:@default=auto@:>@])],
AC_ARG_ENABLE([vdpau],
[AS_HELP_STRING([--enable-vdpau],
[enable vdpau library @<:@default=auto@:>@])],