Qt-4

This environment variable is not needed to run Qt-4 applications, but it is needed to build packages against a Qt library.

KDE TechBase - Recent changes [en] JRT 2010

So, if you are using only one version of Qt-4, you can include it so you don't have to remember to set it before you build something against a Qt library.

KDE TechBase - Recent changes [en] JRT 2010

If you get an error ". pch/debug-shared/QtCore", this is because Qt-4. 3 enables precompiled headers if your gcc supports it, but for some reason it doesn't work for you.

KDE TechBase - Recent changes [en] Frinring 2010

So, if you are using only one version of Qt-4, you can include it so you don't have to remember to set it before you build something against a Qt library.

KDE TechBase - Recent changes [en] JRT 2010

So, if you are using only one version of Qt-4, you can include it so you don't have to remember to set it before you build something against a Qt library.

KDE TechBase - Recent changes [en] JRT 2010

Note regarding QTDIR: This environment variable is not needed to run Qt-4 applications, but it is needed to build packages against a Qt library.

KDE TechBase - Recent changes [en] JRT 2010

This environment variable is not needed to run Qt-4 applications, but it is needed to build packages against a Qt library.

KDE TechBase - Recent changes [en] JRT 2010

So, if you are using only one version of Qt-4, you can include it so you don't have to remember to set it before you build something against a Qt library.

KDE TechBase - Recent changes [en] JRT 2010

Note regarding QTDIR: This environment variable is not needed to run Qt-4 applications, but it is needed to build packages against a Qt library.

KDE TechBase - Recent changes [en] JRT 2010

This environment variable is not needed to run Qt-4 applications, but it is needed to build packages against a Qt library.

KDE TechBase - Recent changes [en] JRT 2010