My code is old and is using lots of variables in different places to holdfile names.
At present all these variables are dimensioned to 80.
I want to increase this to say 255.
Therefore to make it supportable in the future I want to define one varialbe, say FileNameLength as 255.
This works OK on its own, but I get problems with duplicate definitions with 'COMMON' satements which are used to dimension many of the variables.
What is the solution to this?