BOOL af_tcp_fastopen:1; /* delivery usefully used TCP Fast Open */
BOOL af_tcp_fastopen_data:1; /* delivery sent SMTP commands on TCP Fast Open */
BOOL af_pipelining:1; /* delivery used (traditional) pipelining */
-#ifdef SUPPORT_PIPE_CONNECT
+#ifndef DISABLE_PIPE_CONNECT
BOOL af_early_pipe:1; /* delivery used connect-time pipelining */
#endif
#ifndef DISABLE_PRDR