Qt(TM) is a GUI software toolkit. Qt simplifies the task of writing and maintaining GUI (graphical user interface) applications. Qt is a multi-platform toolkit. When developing software with Qt, you can run it on the X Window System (Unix/X11) or Microsoft Windows NT and Windows 95/98. Simply recompile your source code on the platform you want. This package contains version 4 of Qt, which is EOL; it remains because some unmaintained useful software still uses it. NB: This package installs the library substantially into ${PREFIX}/qt4 (except for pkgconfig files) in order to avoid collisions.