[Bug preprocessor/41540] -dM -E doesn't #define __FILE__

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2009-10-02 16:57 -------
Hmm, considering the C99 standard has a footnote about __FILE__ (149)
149) The presumed source file name and line number can be changed by the #line
directive.


So of course it is hard to define these in the preprocessed source.  I really
don't think there should be a note about these predefined macro names based on
what is mentioned in the standard.  Since they are dependent on the file that
is being compiled (not preprocessed).  


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41540