http://download.kde.org/stable/labplot/2.2.0/labplot-2.2.0.tar.xz.mirrorlist there is also a KF5 based version with the same version number: http://download.kde.org/stable/labplot/2.2.0/labplot-2.2.0-kf5.tar.xz.mirrorlist
*** Bug 590072 has been marked as a duplicate of this bug. ***
sci-visualization/labplot-2.3.0:5 is now in tree.