#==================================================================
function IGCM_debug_CallStack
* Purpose: Echo the Stack

#==================================================================
function IGCM_debug_PushStack
* Purpose: Push a function name in the stack

#==================================================================
function IGCM_debug_PopStack
* Purpose: Pop a function name in the stack

#==================================================================
function IGCM_debug_Exit
* Purpose: Print Call Stack and set ExitFlag to true

#==================================================
function IGCM_debug_Verif_Exit
* Purpose: exit with number 1 if ExitFlag is true

#==================================================================
function IGCM_debug_Print
* Purpose: Print arguments according to a level of verbosity.

#==================================================================
function IGCM_debug_PrintVariables
* Purpose: Print arguments when match a pattern
           according to a level of verbosity.
#==================================================================
function IGCM_debug_Check
 * Purpose: Check the present file by comparison with a reference file