If you want to re-build with your own customization, 
define `DONOTUSE_ORIGINALBINARY', such as:
  % make DONOTUSE_ORIGINALBINARY=yes

Visualizing the results of molecular orbital calculations
  MO program:  gaussian, gamess, mopac
  display molecule in 3D:  geo-opt, single-point, 
      nomal mode ... animation
  density:  contour plot, 3D view
      electron density, MO coefficient

Everything what you want about MO calculation can be seen.

WWW: http://www.caos.kun.nl/~schaft/molden/molden.html

--
rmiya