Need to first research how the CMake GUI looks on other systems, and then add a Haiku (using the BeAPI) GUI to it.

http://ports.haiku-files.org/ticket/236

This is to be done using the BeAPI not Qt, but you can model it based on the Qt one:

http://qt-haiku.ru/index.php?option=com_rokdownloads&view=file&Itemid=61&id=83:cmake-2-8