I'm not sure if I picked the right forum for this question, if not, moderators forgive me and feel free to move it

I'm starting to program again at home and I was learning QT this weekend when I ran into a problem.

The makefile I'm supposed to use uses the following variables $QTDIR and $KDEDIR...now when I try:

echo $QTDIR

I get a blank.

Basically I can't compile because I'm not finding a lot of the .h files (like qapplication.h etc..). Doing a locate found them in /usr/lib/qt3 (I'm still looking for the KDE ones) but I don't know how set that value to $QTDIR.

I was wondering if someone could point me in the right direction?

add the following to your /etc/profile :

QTDIR=/usr/lib/qtdir

export QTDIR