https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121907
--- Comment #2 from Alejandro Colomar <foss+...@alejandro-colomar.es> ---
Another possibility would be to remove auto-as-static without replacement.
Declaring nested functions is dangerous. What's the point of being able to
declare them if it's not yet valid to call them?
alx@debian:~/tmp$ cat nested.c | nl -ba
1 int
2 main(int argc, char *[])
3 {
4 int n;
5 auto int f(void);
6
7 n = f();
8
9 int v[argc];
10
11 auto int f(void)
12 {
13 return sizeof(v);
14 }
15
16 return n;
17 }
alx@debian:~/tmp$ gcc -Wall -Wextra nested.c
alx@debian:~/tmp$ ./a.out 1 1 1 1; echo $?
0
