How to efectively debug Fortran 90 programs?

[victor marian]

Hello,

I am trying to debug Fortran 90 programs compiled 
with gfortran.
I tried gdb, but it doesnt print the array
 variables. I tried the free dbx from Sun Studio
 but it cant debug my programs (I tried to compile
 with -g option -gdwarf-2, -gstabs) but nothing.
I am runnig a machine with Ubuntu Linux installed.
Which yau should I go?
Thank you.

                               Victor MARIAN

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