http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51440
Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-03-26
CC| |manu at gcc dot gnu.org
Summary|C++ compiler produces |Improve message and add an
|warning for an unnamed |option for warning for an
|struct member: TYPE has a |unnamed struct member: TYPE
|field FIELD whose type uses |has a field FIELD whose
|the anonymous namespace |type uses the anonymous
| |namespace
Ever Confirmed|0 |1
--- Comment #4 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2013-03-26
20:26:15 UTC ---
(In reply to comment #3)
> +1 for the ability to disable this warning.
1) Invent a descriptive name for the warning, say "bla"
2) Add -Wbla to gcc/c-family/c.opt, document it in gcc/doc/invoke.texi
3) Change:
decl2.c-2335 if (!in_main_input_context ())
decl2.c-2336- warning (0, "\
decl2.c-2336+ warning (OPT_Wbla, "\
decl2.c:2337:%qT has a field %qD whose type uses the anonymous namespace",
decl2.c-2338 type, t);
decl2.c-2339 }
4) bootstrap
5) run testsuite, fix failing tests, submit patch to gcc-patches, profit.
+ Bonus points for improving the message to explain user what is exactly the
potential problem.
++ Extra bonus points if the explanation does not include the words "internal
linkage".
(Note that you can do steps 1-4 in your own copy, but it will be broken again
in the next release, so it is better to contribute your patch).
