I think there's a little error in the kmymoney2 Slackbuild for Slackware
13. In line 84:
--with-qt-includes=/opt/kde3/lib${LIBDIRSUFFIX}/qt/include \
should be:
--with-qt-includes=/opt/kde3/lib${LIBDIRSUFFIX}/qt3/include \
(just a "3" missing).
Sorry for annoying you (and for my poor english: I'm Italian)!
Michele