[xmonad] Don't use xmessage when (re)compile errors

Honestly I don't like xmessage very much, I'm happy enough looking the compile errors in the file .errors file or directly on the terminal. Besides uninstalling xmessage is there other sensible way to deactivate it? Regards! -- Pablo Olmos de Aguilera Corradini - @PaBLoX http://www.glatelier.org/ http://about.me/pablox/ http://www.linkedin.com/in/pablooda/ Linux User: #456971 - http://counter.li.org/