Qt Creator 2 is a Cross-Platform Qt IDE.

The goal of Qt Creator is to provide a cross-platform, complete Integrated
Development Environment (IDE) to develop Qt projects.

NOTE1: This package conflicts with qt-creator: install only one of the two.

NOTE2: QmlDesigner needs Qt Private Headers. If you have intent to build the
QmlDesigner you need to specify the Qt source location. Besides, it is
required to apply all patches from Slackware tree and run configure.
Note that configure process takes some time to finish due qmake compile
process.

Follow these steps to prepare source tree:
1 - Copy Qt SlackBuild directory from Slackware source tree to /tmp;
2 - Edit qt-nowebkit.SlackBuild and place an exit command AFTER the
    configure command;
3 - Execute qt.SlackBuild;
4 - move /tmp/qt-everywhere-opensource-src-x.x.x to /usr/src

QTSOURCEDIR is set to /usr/src/qt-everywhere-opensource-src-x.x.x
(Qt version from Slackware tree).