-Wno-unused-parameter does not work?

[Satish Balay]

I've tried the following with both:

GNU Fortran 95 (GCC) 4.1.1 20070105 (Red Hat 4.1.1-51)
GNU Fortran 95 (GCC) 4.1.2

In the following code, I'd like to get a warning for unused variable
'b' - not not 'a' which is a parameter to the subroutine. However I'm
unable to do this with gfortran.  It either warns be about both [if I
use -Wall] - or none [-Wall -Wno-unused-variable].

I assumed "-Wall -Wno-unused-parameter" should provide what I want,
but its not working. Is this option supported?  [-Wunused-parameter
appears to work correctly - as expected]

thanks,
Satish

>>>>>>>>>>

asterix:/home/balay/junk/test>cat foo.F
        subroutine bar(a)
        integer a
        integer b
        end
asterix:/home/balay/junk/test>strings /usr/bin/gfortran |grep unused-parameter
-Wunused-parameter
asterix:/home/balay/junk/test>gfortran -Wall -Wno-unused-variable -c foo.F
asterix:/home/balay/junk/test>gfortran -Wall -Wno-unused-parameter -c foo.F
 In file foo.F:3

       integer b                                                        
               1
Warning: Unused variable b declared at (1)
 In file foo.F:1

       subroutine bar(a)                                                
                      1
Warning: Unused variable a declared at (1)
asterix:/home/balay/junk/test>gfortran -c -Wunused-parameter foo.F 
 In file foo.F:1

       subroutine bar(a)                                                
                      1
Warning: Unused parameter a declared at (1)
foo.F:1: warning: unused parameter ‘a’


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