void strerr_warn(const char *x1, const char *x2, const char *x3, const char *x4, const char *x5, const char *x6, const struct strerr *se)
void strerr_die(int e, const char *x1, const char *x2, const char *x3, const char *x4, const char *x5, const char *x6, const struct strerr *se)