[Bug c/65808] -pedantic -std=gnu11 results in warning for transparent_union usage

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65808

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |mpolacek at gcc dot gnu.org

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
I don't think it is a bug.  If you use -pedantic, it doesn't matter whether
-std=c11 or -std=gnu11 (the default) is in effect.
If you want to suppress the warning, use __extension__ as you did in the
test().