OK,

  2 steps forward 3 steps back. I've rebuilt tqtinterface to install in /opt/qt
consistent with Qt3-3.3.8c and all executables are there:

14:52 archangel:/dat_e/david/bld/trinity/kdelibs> ls -1 /opt/qt/bin/
assistant
convert_qt_tqt1
convert_qt_tqt2
convert_qt_tqt3
dcopidl-tqt
dcopidl2cpp-tqt
dcopidlng-tqt
designer
linguist
lrelease
lupdate
mcopidl-tqt
moc
moc-tqt
qm2ts
qmake
qt3config
qtconfig
tmoc
tqt-replace
tqt-replace-stream
uic
uic-tqt

  The tqt.h header is in /opt/qt/include/tqt:

15:20 archangel:/dat_e/david/bld/trinity/kdelibs> l /opt/qt/include/tqt/tqt.h
-rw-r--r-- 1 root root 57672 Feb  1 12:06 /opt/qt/include/tqt/tqt.h

  arts built fine with:

  trinity_prefix="/opt/trinity"
  ./configure --prefix=${trinity_prefix} \
    --includedir=${trinity_prefix}/include/kde \
    --mandir=${trinity_prefix}/share/man \
    --infodir=${trinity_prefix}/share/info \
    --with-extra-libs=${trinity_prefix}/lib \
    --sysconfdir=/etc \
    --localstatedir=/var \
    --libexecdir=${trinity_prefix}/lib/kdebase-kde3 \
    --with-qt-dir=/opt/qt \
    --with-qt-includes=/opt/qt/include \
    --with-qt-libraries=/opt/qt/lib \
    --disable-rpath

  cd ${srcdir}
  cmake ../ \
    -DCMAKE_INSTALL_PREFIX=${trinity_prefix} \
    -DWITH_QT3=ON \
    -DCMAKE_SKIP_RPATH=ON
  make

  but now kdelibs fails saying it can't find tqt.h? The error is:

Good - your configure finished. Start make now

-- Found x86 architecture
-- Found Cups: /usr/lib/libcups.so
-- Configuring done
-- Generating done
-- Build files have been written to: /dat_e/david/bld/trinity/kdelibs/src
[  1%] Built target kICE-static
[  1%] Building CXX object dcop/CMakeFiles/DCOP-shared.dir/dcopstub.cpp.o
cc1plus: fatal error: tqt.h: No such file or directory
compilation terminated.
make[2]: *** [dcop/CMakeFiles/DCOP-shared.dir/dcopstub.cpp.o] Error 1
make[1]: *** [dcop/CMakeFiles/DCOP-shared.dir/all] Error 2
make: *** [all] Error 2
    Aborting...

  It found it fine when tqtinterface used -DCMAKE_INSTALL_PREFIX=/usr. Googling,
I tried 'export CMAKE_PREFIX_PATH=/opt/qt', but that made no difference. I have
adjusted the ./configure options a number of times even specifying
'--with-extra-includes=/opt/qt/include/tqt' to explicitly point to where tqt.h
is installed, but still no joy. I was using the following on the last attempt:

  trinity_prefix="/opt/trinity"
  ./configure --prefix=${trinity_prefix} \
    --includedir=${trinity_prefix}/include/kde \
    --mandir=${trinity_prefix}/share/man \
    --infodir=${trinity_prefix}/share/info \
    --with-extra-libs=${trinity_prefix}/lib \
    --sysconfdir=/etc \
    --localstatedir=/var \
    --libexecdir=${trinity_prefix}/lib/kdebase-kde3 \
    --with-qt-dir=/opt/qt \
    --with-qt-includes=/opt/qt/include \
    --with-qt-libraries=/opt/qt/lib \
    --with-extra-includes=/opt/qt/include/tqt \
    --disable-rpath

  cd ${srcdir}
  cmake ../ \
    -DCMAKE_INSTALL_PREFIX=${trinity_prefix} \
    -DWITH_QT3=ON \
    -DCMAKE_SKIP_RPATH=ON
  make

  Any ideas on how to get kdelibs to find tqt.h? Configure finished fine, but
here is the config.log in case it hold clues:

http://www.3111skyline.com/dl/dt/trinity/errors/kdelibs-config.log.bz2

  Any help will be greatly appreciated.

-- 
David C. Rankin, J.D.,P.E.