[Bug c/106929] declaration in switch-case doesn't fail since GCC 11

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106929

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

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

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
-std=c89 doesn't mean there aren't any extensions accepted, if you want the
compiler to be pedantic, -pedantic or -pedantic-errors are the options to use
as documented (the former just warns, the latter errors).