[patch, fortran] PR35156: deprecate -M

[Daniel Franke]

A very similar patch was already ok'ed [1], I just cleaned it up a bit. If 
there are no objections, I'll commit it on Tobias' behalf in 24 hours.


:ADDPATCH fortran:

2008-01-29  Tobias Burnus  <burnus@net-b.de>
	    Daniel Franke <franke.daniel@gmail.com>

        PR fortran/35156
        * gfortranspec.c (lang_specific_driver): Deprecate -M option;
        fix ICE when "-M" is last argument and make "-M<dir>" work.
        * options.c (gfc_handle_module_path_options): Use -J instead
        of -M in error messages.
        * invoke.texi: Mark -M as depecated.


Regression tested on i686-pc-linux-gnu.

Regards

	Daniel


[1] http://gcc.gnu.org/ml/fortran/2008-01/msg00366.html
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