Debugging internal Fortran subroutine

Hello,

I have a Fortran subroutine that has internal subroutines and functions which it calls. The program runs, but once I step into an internal subroutine, debugging variables define in principal usbroutine is impossible. It is as if it does not inherit the debug information from the enclosing subroutine. All the variables are undefined in the debugger.

Does anyone know how to get around this problem ?

Visual studio version : 2012 update 4

Intel® Parallel Studio XE 2015 Update 4 Composer Edition for Fortran Windows* Integration for Microsoft Visual Studio* 2012, Version 15.0.0122.11

Regards

Philippe Boyat