as per mailing list discussion about dropping xcb support now. it
hasn't been complete for a long time, thus not recommented for being
turned on. as we are moving to a wayland world xcbmakes even less
sense. as agreed, time to clean up a bit and remove a distraction as
well as not well tested code. this also updates po's too.
@feature
the warning didn't exist because we were not using cflags, now we will.
all these variables are not used outside main(), so keep them local.
SVN revision: 82473
Carsten Haitzler
Vincent Torri
Eduardo Lima (Etrunko)
Gustavo Sverzut Barbieri
Vincent Torri