TFO: better detection of client fast-open connections (again)

[users/heiko/exim.git] / src / OS / os.h-Linux

diff --git a/src/OS/os.h-Linux b/src/OS/os.h-Linux
index 57034649c6909e7422f724caad23caf8031c5704..f6d35772b73ddc666b5e694861d4f3c55994f586 100644 (file)
--- a/src/OS/os.h-Linux
+++ b/src/OS/os.h-Linux
@@ -72,11 +72,14 @@ then change the 0 to 1 in the next block. */
 # define EXIM_HAVE_OPENAT
 #endif
 
+/* TCP Fast Open support */
+
 #include <netinet/tcp.h>       /* for TCP_FASTOPEN */
 #include <sys/socket.h>                /* for MSG_FASTOPEN */
 #if defined(TCP_FASTOPEN) && !defined(MSG_FASTOPEN)
 # define MSG_FASTOPEN 0x20000000
 #endif
+#define EXIM_HAVE_TCPI_UNACKED
 
 
 /* End */