[Bug sanitizer/98609] sanitizer diagnoses VLAs with length zero although zero-length arrays are a GNU extension

[marxin at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98609

--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
I would recommend changing just libsanitizer to allow something like
UBSAN_OPTIONS=vla_bounds_allow_zero=1. Should be relatively small change.