(cherry picked from commit 4e2c6dbabdbbaaca213fd08edd422de15d0900cc)
required because of commit 7c0709a736,
which made requestingClient in dix specific to Xprint only.
Add to XPRINT_LIBS in hw/xprint/Makefile.am in front of
$(XSERVER_LIBS) to override definitions in libdix.la for standard xservers.
Follows 571206832d (providing -DXPRINT
to xprint subdirs).
Note it may be possible to restructure the code so that
requestingClient is stored elsewhere than in dix. See discussions
following http://lists.freedesktop.org/archives/xorg/2008-March/033844.html
If this is done it may be possible to revert this commit (if not 571206...).