compiling ghostscript and /usr/X11R6

Greetings!

Compiling ghostscript (9.01 or older) on a SUSE-11.3 does not include the x11 devices.
gs -h does not show x11, x11alpa, x11mono, etc.

Compiling on an old SLES-9.3 all x11 devices are included.
On the old SLES-9.3 there is a library /usr/X11R6 with subdirs lib and include.

Apparently including x11 devices depends on the libraries in /usr/X11R6.

Question 1: how do I compile ghostscript on suse-11.3 with x11 devices included? The option --with-x does not help.
Question 2: where can I get the appropriate /usr/X11R6 for SUSE-11.3?

Thanks for hints!
Wolf

Solved; needs libXt