_IO_FLAGS2_FORTIFY
fp->_flags2 &= ~(_IO_FLAGS2_FORTIFY | _IO_FLAGS2_SCANF_STD);
_IO_acquire_lock_file->_flags2 &= ~(_IO_FLAGS2_FORTIFY \
memset (args_type, s->_flags2 & _IO_FLAGS2_FORTIFY ? '\xff' : '\0',
assert (s->_flags2 & _IO_FLAGS2_FORTIFY);
if (s->_flags2 & _IO_FLAGS2_FORTIFY) \