nOOb help with Spike and Xboard


I compiled my first code today - Xboard, I also downloaded Spike chess engine. I copied it into the same directory as Xboard, but am now at a loss trying to make an icon for my desktop.

from the directory home/randy/xboard-4.2.7/

the following works fine:

xboard -fcp ./spike

I did:

chmod +s xboard
chmod +s spike

thinking I could then run it from the GUI desktop, but no can do. Any help is apprciated, thank you.