Please refer to the Installation Document for detailed installation instructions.
It may be necessary to increase the process stack limit in order to
build X11R6.9 and run X11R6.9 on your system. Edit
/etc/startab and reboot your system to make the changes
active before you begin the installation.
Also, be sure to include /usr/X11R6/bin in your PATH
environment variable.
Refer to the next section Running X11R6.9 for further information on necessary configuration steps before running X11R6.9 on LynxOS.
Include /usr/X11R6/man in the MANPATH environment variable or add
the directory /usr/X11R6/man to /usr/Lib/man.config