s_printflike
if (def == NULL || (!def->s_printflike && !def->s_scanflike))
as = def->s_printflike
if (def->s_printflike) {
if (sym->s_printflike) {
bool s_printflike:1;
#define s_printflike s_s.s_printflike
if (sym->s_printflike)
sym->s_printflike = true;
sym.s_printflike || sym.s_scanflike) {