PTHREAD_MAX_NAMELEN_NP
char *oldname, *cp, newname[PTHREAD_MAX_NAMELEN_NP];
if (namelen >= PTHREAD_MAX_NAMELEN_NP)
namelen = snprintf(p->ptap_name, PTHREAD_MAX_NAMELEN_NP, name, arg);
if (namelen >= PTHREAD_MAX_NAMELEN_NP) {
char ptap_name[PTHREAD_MAX_NAMELEN_NP];