-Wunused-parameter

[Daniel Franke]

Follow-up to 
	http://gcc.gnu.org/ml/fortran/2007-07/msg00545.html


gcc/fortran:
2007-08-01  Daniel Franke  <franke.daniel@gmail.com>

	* trans-decl.c (generate_local_decl): Emit warning on unused parameter
	on "-Wall -Wextra" or "-Wunused-parameter" but not on "-Wall".
	* invoke.texi (-Wparameter-unused): Document differences between gcc 
	and gfortran regarding this option.

gcc/testsuite:
2007-08-01  Daniel Franke  <franke.daniel@gmail.com>

	* gfortran.dg/parameter_unused.f90: Adjusted dg-options.


Bootstrapped and regression tested on i686-pc-linux-gnu.
Ok for trunk?

Regards
	Daniel
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