https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69550
--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Apparently the case they actually care about in Julia is not what was posted
here, which might be where the disagreement comes from. What they actually have
is:
typedef struct mytype {
struct mytype *fieldptr0[0];
struct mytype *fieldptr[];
} mytype;
The C front-end *does* accept this, which uses the non-standard zero-length
array extension *and* a flexible array member.
