[Bug c/17426] Emit mandatory warning for manual expansions of offsetof

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=17426

Eric Gallager <egallager at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |87403

--- Comment #8 from Eric Gallager <egallager at gcc dot gnu.org> ---
this warning would be new; making it block the relevant meta-bug


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87403
[Bug 87403] [Meta-bug] Issues that suggest a new warning