Split up init_options langhook

[Tobias Burnus]

Joseph S. Myers wrote:
>> The middle-end and LTO pieces are ok.
>>     
> Thanks.  This patch 
> <http://gcc.gnu.org/ml/gcc-patches/2010-06/msg01968.html> still needs 
> review of the Ada, C++, Fortran and Java pieces.

The Fortran part of the patch is OK. Thanks for the cleanup!

Tobias

>>> fortran:
>>> 2010-06-20  Joseph Myers  <joseph@codesourcery.com>
>>>
>>>        * cpp.c (gfc_cpp_init_options): Update prototype.  Use number of
>>>        decoded options in allocating deferred_opt.
>>>        * cpp.h (gfc_cpp_init_options): Update prototype.
>>>        * f95-lang.c (LANG_HOOKS_OPTION_LANG_MASK): Define.
>>>        * gfortran.h (gfc_option_lang_mask): New.
>>>        (gfc_init_options): Update prototype.
>>>        * options.c (gfc_option_lang_mask): New.
>>>        (gfc_init_options): Update prototype.  Pass new arguments to
>>>        gfc_cpp_init_options