another: copyright question

[Taketoshi Sano <xlj06203@nifty.ne.jp>]

Hi. Thank you for our mentors :)

I am now thinking about making the package of xacursor, 
but it has no explicitly written license.

In the README file, 

 --- (quoted) ---

Hi,


    Thanks for using "xacursor", the program can:
    1. changes the cursor to the one specified using the "-cursor" option
    2. shows the standard demonstration by the option "-demo"
    3. changes the cursor in the sequence specified in a configuration file,
       so an animated effect is achieved.  The animated cursor can have
       changing colors, and can be animated in different ways.

...(snip)

    You may use "xmkmf" to generate a "Makefile" to compile the program;
or use the standard one "Makefile.std".  The MAN-page is called "xacursor.man".
In addition, this software has been compiled in systems running SunOS, Solaris,
Ultrix, AIX, HP_UX, and Linux using both "cc" and "gcc". 


    To enjoy "xacursor" right away, do:
        xacursor -bg gold1 -fg firebrick -r -demo
    (then go to the root window...)

...(snip)

    Thanks also goes to Jason Ting (jting@napier.uwaterloo.ca), he suggested me
to provide a better README file (here it is); and has also compiled the
software under HP_UX.


    Please don't be hesitated to give me some suggestions and comments, or
just an encouragement, for every student needs encouragements, right? 


(e-mail: k2wong@descartes.uwaterloo.ca)
(WWW:    http://www.undergrad.math.uwaterloo.ca/~k2wong)

  --- (end of quote)

The above address & URI of author seems not valid anymore, 

In the manpages,

  --- (quoted) ---

AUTHOR
       xacursor is written by Kam-Hung WONG (k2wong@noether.math.uwaterloo.ca),
       4th year Computer Science student at University of Waterloo, Canada.

       Thanks goes to Victor S. H. Wong and Hilda Lee, for their fine
       efforts of drawing many interesting bitmaps for demonstration
       purposes.

       This is a small work, but I would like to dedicate it to friends
       at the Faculty of Mathematics, because of whom these years become
       so memorable.

       Further improvements to the application will be made, if the author
       survives the Real-time Programming course. :-)

                          August 1993                          3

  --- (end of quote)

I can't find no written permission of use, modify, distribute.

But there are many archives, including HP-UX sites and DEC VMS sites
which provides this xacursor as a public domain. RedHat (RPM) package 
for libc5 is also provided as contrib.

I wish to know whether I can pakcage this xacursor. and if I can,
whether it should be main or non-free. Thanks.

-- 
  Taketoshi Sano: <kgh12351@nifty.ne.jp>, <sano@debian.org>