The following libraries are required to compile and run synaptiks:
Qt 4.6 or newer
KDE libraries and KDE base runtime 4.4 or newer (earlier releases may also work, but are untested)
libXi 1.2 or newer (q.3 or newer for XInput2 support)
KDE is available on http://www.kde.org/. libXi is part of X.org 7.5, which is available on http://xorg.freedesktop.org/.