https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116780
--- Comment #10 from Georg-Johann Lay <gjl at gcc dot gnu.org> --- ...hmmm https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html reads: <quote> 6.18 Arrays of Length Zero Declaring zero-length arrays is allowed in GNU C as an extension. A zero-length array can be useful as the last element of a structure that is really a header for a variable-length object: [...] Declaring zero-length arrays in other contexts, including [...] as non-member objects, is discouraged. Accessing elements of zero-length arrays declared in such contexts is undefined and may be diagnosed. </quote> So the test case for PR64088 is already invalid?
