how to fix the problem when you install matlab on *nix-- "libXp.so.6 : cannot open "

   An error status was returned by the program 'xsetup',
    the X Window System version of 'install'. The following
    messages were written to standard error:

        /home/vlbi/MATHWORKS_R2008B/update/bin/glnx86/xsetup: error while loading shared libraries: libXp.so.6: cannot open shared object file: No such file or directory

    Attempt to fix the problem and try again. If X is not available
    or 'xsetup' cannot be made to work then try the terminal
    version of 'install' using the command:

            install* -t    or    INSTALL* -t

-------------------------------------------------------------------

    Sorry! Setup aborted . . .

yum install libXp-devel

That's it. Problem solved.