HAVE_STRUCT_TCP_INFO_TCPI_LAST_ACK_SENT  936 ext/socket/option.c     defined HAVE_STRUCT_TCP_INFO_TCPI_LAST_ACK_SENT  || \
HAVE_STRUCT_TCP_INFO_TCPI_LAST_ACK_SENT 1066 ext/socket/option.c #ifdef HAVE_STRUCT_TCP_INFO_TCPI_LAST_ACK_SENT