On Sunday 01 May 2011 21:51:27 David C. Rankin wrote:

[...]

> > /usr/bin/c++ -march=i686 -mtune=generic -O2 -pipe -DHAVE_USABLE_QT3
> > -I/opt/qt/include -o CMakeFiles/cmTryCompileExec.dir/src.cxx.o -c

^^^^^^^^

> > /home/david/tblds/trinity-tqtinterface/src/build/CMakeFiles/CMakeTmp/src.
> >cxx
> > /home/david/tblds/trinity-tqtinterface/src/build/CMakeFiles/CMakeTmp/src.
> >cxx:2:30: fatal error: qapplication.h: No such file or directory
> > compilation terminated.

[...]

> ==> Starting cmake...
> -- Checking for Qt3...
> --   QT_PREFIX_DIR is set to QTDIR
> --   QT_PREFIX_DIR : /opt/qt
> --   QT_INCLUDE_DIR: /opt/qt/include

^^^^^^^^

[...]

>
>    Do I need to handle this with a CMake variable or do I need to set a
> global environment variable with the Qt3 install?

/opt/qt/include is correctly detected. Check if you really have something 
in /opt/qt/include.

-- 
Serghei