To compile loch, you will need following packages:

freetype (version 2 and above, 'pkg-config freetype2' must work)
wxWidgets (version 2.6 and above, 'wx-config' must work)
VTK (version 5.0 and above installed at /usr/local or
     modify VTKPATH and VTKLIBPATH in Makefile)

Then following should work:
make config-linux
make
