Re: MPS: face-cache

[Helmut Eller]

> I don't know.  Maybe GCC 12 lifts that restriction or something.  I
> clearly remember that if a case includes declarations, it must be in
> braces.

Here doc[*] for  GCC 12 says:

 GNU dialect of ISO C17. This is the default for C code.

https://gcc.gnu.org/onlinedocs/gcc-12.1.0/gcc/C-Dialect-Options.html#C-Dialect-Options