There are nested modules utilized in Wspect of LTK.<br>
You are supposed to use gfortran of GNU C compiler<br> 
(gcc) <u>version 4.3 or later</u> since it is known that nested<br>
module inclusion fails with the older version of GNU<br> 
compilers due to the genuine compiler bug of gfortran.<br> 
(Of course, there is no problem with any version of both<br> 
the IBM XL compiler and the Intel compiler)<br>
If you use MacOS X (Tiger or Leopard), you can easily<br> 
get gcc-4.4 including gfortran from http://hpc.sourceforge.net/.