how to know whether a software which is compiled from source is compiled properly or not .What the problem is that iam using RHEL4 which has qtdesigner-3.x.x .i have a source qt4 (couldnt find the source of qtdesigner-4) .i reckoned that qtdesigner-4 is packaged with qt4. I compiled the source but could not get any icon or anything to use qt4 and qtdesigner-3 still persist. i read somewhere that qt3 and qt4 are not compatible thats why i believe that qtdesigner-3 is still there.
B/c of the above reason i am trying to find out whether the qt4 is compiled or not.any direction will be apreciated.
regards

I didn't understand fully the specifics of your post, but as for the question of whether it is compiled properly, the easiest way to know is to install and run it. You should check the trolltech website for instructions on compiling and installing this software. Did you do something along the lines of the standard procedure?

./configure
make
make install

Many programs have their own specific instructions so you should follow the documentation closely.

yes i have read the INSTALL file and did as it said i.e
./configure
make
su -c "make install"

and setup the PATH variable
"PATH=/usr/local/Trolltech/Qt-4.2.3/bin:$PATH"
"export PATH"

along the way after "su -c "make install" it was suppose to ask for root password but it didnt asked could that be a problem as "su" command is used for switching user and iam using root as a user.

I will throw out a couple of suggestions. Do the ./configure and make steps while logged in as a user rather than root. Try removing qt3 first and then use qt4.

You would probably get responses from experts if this thread were moved to the programming forum and had "qt4 installation problem" as the subject.

If you don't really need qtdesigner 4 it's definitely better to stick to 3 for now. Qt3 and 4 don't live together well if at all as far as I know. As KDE 3 is based on Qt3 and KDE 4 is based on Qt4, removing qt3 will not be the best thing to do if you don't want to remove KDE 3 as well. And, as can be heard almost everywhere, KDE 4 is not yet ready for the "end user".

For trying out Qt4 and qtdesigner 4 you could use one of the KDE 4 Live CDs.

Thankyou teddyt and General Failure for the help i really dont want to install KDE4 for qt4-designer. if it is true that KDE4 is needed for qt4-designer i better stick to qt3-designer. Thanks once again both os u people.
Regards

I have qt 4 and qt 3 together and they work very well

Well then why don't you tell Tahir how you did it

Actually I just did a search for "qt4 on rhel 4" and the first result led to this site:

http://www.pramberger.at/peter/servi...ository/rhel4/

You should not need to compile it yourself.

I used a slackbuild to compile qt 4, which are not usable on RHEL AFAIK