Upgrading from Qt3 to Qt4

[jpn]

So did you install Qt by hand or did you use packages from your distribution's repositories? If the former, just make sure that qmake from Qt 4 comes first in PATH.

[archanasubodh]

We are trying to make our application run on the client's set up so i'm not sure about he instillation.
I would like to know the following
1.Check to see whether Qt4 has been installed correctly?
2.If Qt4 has been installed properly then how to make qmake of Qt4 as the default?

When we type qmake -version,it display Qt 3.3.7 how to upgrade this?

Thank You.

[joseph]

We are trying to make our application run on the client's set up so i'm not sure about he instillation.
I would like to know the following
1.Check to see whether Qt4 has been installed correctly?
2.If Qt4 has been installed properly then how to make qmake of Qt4 as the default?

When we type qmake -version,it display Qt 3.3.7 how to upgrade this?

Thank You.

Archana ,

Please explain what all are the error messages , you are getting while doing qmake.
This may help the forum-gurus to help you out.

[jacek]

When we type qmake -version,it display Qt 3.3.7 how to upgrade this?

You might be running the wrong qmake binary. What happens if you run qmake-qt4 -version?