Hello Costas,
The usual trick that you certainly already know is to add in your subroutine:
USE DECLARATIONS_TOMAWAC, ONLY : LT
but unfortunately LT is declared in wac.f and this is not possible. I conclude that we shall move this parameter to the declarations_tomawac in the next version, in the while you can try yourself and recompile... (it may trigger local name clashes and renaming or the use of ONLY will solve the matter), or add LT as a new argument to venuti.f, but then you will have to do it for all calls, and change venuti also in the interface_tomawac.f. More dangerous tricks : playing with the time which is in venuti, or counting the calls to venuti into venuti with a saved integer initially set to 0 by a data(assuming that venuti is called a fixed number of times per step, it will give you LT hopefully). A COMMON would also work but it is rather outdated.
With best regards,
Jean-Michel Hervouet