xshofonts.c on RS/6000

[jxt at cpdws1.ctd.ornl.gov]

Has anyone compiled xshowfonts.c for an RS/6000? I got it from uu.uunet.net but
it came as a plain .c file; no makefile, no nothing. Anyway, compiling gives
errors of can't find include file X11/Xaw/Label.h and X11/Xaw/Viewport.h and
then deteriorates rapidly from there. I don't even have an Xaw subdirectory
under /usr/include/X11. What gives here and how can it be fixed?

Thanks,
Johnny Tolliver (jxt at ornl.gov)