Preprocessor Directive Problems

[Richard Haney]

Please help,

I am new to fortran and am having some problems with a file. Whenever I try 
to compile the file "clump.f90" using gfortran I get warnings about 
preprocessor directives. I am using gFortran version 4.0.0. 20041001 on a 
Linux Cluster.

The following is a short copy of my input and output:

% gfortran -c clump.f90

output: > "Warning: clump.f90:65 Unknown preprocessor directive"

When I open the file up, the line that gives the warning is "#ifdef  DEBUG".

Any help/hints would be great.

Thanks.