40void err(
int,
const char *, ...)
42void errx(
int, const
char *, ...)
#define pg_attribute_printf(f, a)
#define pg_attribute_noreturn()
void err(int, const char *,...) pg_attribute_noreturn() pg_attribute_printf(2
void void errx(int, const char *,...) pg_attribute_noreturn() pg_attribute_printf(2