KNode is part of the package kdenetwork of KDE 2.x and is installed together with it. so in general, there is no need for a user to compile the sources of KNode. If you nonetheless intend to or if you only have the sources available, compilation and installation is done, as is custom on Linux, by typing:
% ./configure % make % su % make install |
KNode uses autoconf and automake, so there should be no problems during compilation. But if so, please contact the already mentioned mailing list or the KDE newsgroups.