>> Also, where does "whereis moc" show on your build system?
>
> whereis moc
> moc: /usr/bin/moc /usr/X11R6/bin/moc /usr/bin/X11/moc /usr/X11/bin/moc
> /opt/trinity/bin/moc
>

I'm not sure how smart the build system is at the moment.  Try symlinking
/usr/bin/moc and /opt/trinity/bin/moc to the real TQt3 moc that is
residing in /opt/trinity/lib/tqt3-R14.0.0/bin/moc.  Remember to make clean
before trying to rebuild, as the build system will not detect that the moc
binary has changed and recreate the .moc files.

Tim