SCM_CLASS_SYS_PROTOENT  228 ext/net/gauche/net.h #define SCM_SYS_PROTOENT_P(obj) SCM_XTYPEP(obj, SCM_CLASS_SYS_PROTOENT)
SCM_CLASS_SYS_PROTOENT  232 ext/net/netdb.c     SCM_SET_CLASS(entry, SCM_CLASS_SYS_PROTOENT);