https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83819 Bug 83819 depends on bug 91490, which changed state.
Bug 91490 Summary: [9 Regression] bogus argument missing terminating nul warning on strlen of a flexible array member https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91490 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED