------- Comment #2 from bernard dot van dot duijnen at oracle dot com 2010-04-04 15:08 ------- The message may be unclear, but is in itself correct. Your function vsnprintf_one needs an annotation because its first argument is a format string that can be checked itself to be a valid format. As there are no arguments to compare to, the first-to-check should be zero.
static void vsnprintf_one(char *self, va_list arglist) __attribute__ ((format (printf, 1, 0))); -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28492
