[Bug c/84046] [6/7/8 Regression] global zero-sized objects may have same address

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84046

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
If you want aggregate with size 1 and isn't used to store information, use
typedef struct { char : 1; } zero;
instead.