Let configure --enable/disable-aiglx control building of AIGLX for all DDXs.
Currently
we can't use --enable/disable-aiglx to control if Xwin DDX is built with AIGLX
enabled,
as at the moment it's forced off if we aren't building the X.Org DDX DRI loader
Rearrange things a bit, introducing a
Can't use --enable/disable-aiglx to control if Xwin DDX is built with AIGLX
enabled,
as at the moment it's forced off if we aren't building the X.Org DDX DRI loader
Rearrange things a bit, introducing a new configure symbol, DRI1_AIGLX to
specifically
indicate if the X.Org DDX DRI loader should
