In order to successfully use LabPlot, you need KDE. All needed libraries (for exporting, etc.) are shipped with LabPlot.
LabPlot uses following libraries :
Cephes Math Library Release 2.3: June, 1995 : adapted from Grace for using of powerful mathematical functions (parser)
qjp2io with JasPer Library : support for JPEG 2000 image format
qtiffio Library : support for tiff image format