[Bug fortran/18452] -fno-second-underscore induces warning for fortran that needs preprocessing

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-04-11 17:20 -------
(In reply to comment #8)
> We're using the traditional preprocessor.  This is a separate executable, cpp,
> which is built separately.  So the question remains: why do we run cc1?
cpp just calls cc1.
There used to be a cpp0 but that was removed a while back, long before gfortran was added, there was 
code in cc1 which made us not warn about the g77 options, that should be brought back.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18452