https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101836
--- Comment #17 from Kees Cook <kees at outflux dot net> --- (In reply to qinzhao from comment #16) > additional work are needed in order to make this task complete: > > 1. add one more new gcc option: > > -fstrict-flex-arrays > > when it's on, only treat the following cases as flexing array: > > trailing array with size 0; > trailing array with size 1; > trailing flexible array; > > all other trailing arrays with size > 1 will be treated as normal arrays. Under -fstrict-flex-arrays, arrays of size 0 and 1 should *not* be treated as flex arrays. Only "[]" should be a flexible array. Everything else should be treated as having the literal size given.