MSG_FIN           655 ext/socket/constdefs.c #if defined(MSG_FIN)
MSG_FIN           657 ext/socket/constdefs.c     rb_define_const(rb_cSocket, "MSG_FIN", INTEGER2NUM(MSG_FIN));
MSG_FIN           659 ext/socket/constdefs.c     rb_define_const(rb_mSockConst, "MSG_FIN", INTEGER2NUM(MSG_FIN));
MSG_FIN           507 ext/socket/constdefs.h #if !defined(MSG_FIN)
MSG_FIN           509 ext/socket/constdefs.h #  define MSG_FIN MSG_FIN