Download and compile the following src before compiling nte:
http://www-mice.cs.ucl.ac.uk/multimedia/software/tk/tk-8.0.3ucl7.tar.gz
http://www-mice.cs.ucl.ac.uk/multimedia/software/tcl/tcl-8.0.3ucl7.tar.gz
http://www-mice.cs.ucl.ac.uk/multimedia/software/common/common-1.1.2.tar.gz

Further information can be found at:
http://www-mice.cs.ucl.ac.uk/multimedia/software/nte/