I recently built i486 and x86_64 - Trinity Desktop - packages for 
Slackware 14.1 the packages are compiled as the native desktop, and not 
for the /opt/trinity directory.

If your interested you can download the i486, x86_64, or build script, 
each as single packages, from my website at this URL 
http://www.inpito.org/trinity.php later.