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List:       gcc-bugs
Subject:    [Bug preprocessor/61371] cpp: Implement -fno-date-time/-freproducible-dates or similar
From:       "crrodriguez at opensuse dot org" <gcc-bugzilla () gcc ! gnu ! org>
Date:       2014-05-30 16:21:04
Message-ID: bug-61371-4-FJOQzmQcaK () http ! gcc ! gnu ! org/bugzilla/
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61371

--- Comment #6 from Cristian Rodríguez <crrodriguez at opensuse dot org> ---
(In reply to Manuel López-Ibáñez from comment #5)
> (In reply to Cristian Rodríguez from comment #2)
> > It would be.. if there wasn't half a ton of packages using -Werror
> 
> In fact, it was committed and the message tells you which option you have to
> use to silence the warning:
> 
> manuel@gcc10:~$ ~/test1/210581/build/gcc/cc1 -D__DATE__='bla' test.c -Werror
> <command-line>:0:0: error: "__DATE__" redefined
> [-Werror=builtin-macro-redefined]
> 
> manuel@gcc10:~$ ~/test1/210581/build/gcc/cc1 -D__DATE__='bla' test.c -Werror
> -Wno-error=builtin-macro-redefined
> <command-line>:0:0: warning: "__DATE__" redefined [-Wbuiltin-macro-redefined]
> 
> manuel@gcc10:~$ ~/test1/210581/build/gcc/cc1 -D__DATE__='bla' test.c -Werror
> -Wno-builtin-macro-redefined
> 
> 
> Isn't this what you want?

-Wno-builtin-macro-redefined silences redefinitions of __FILE__, and 
__BASE_FILE__..=
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