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-rw-r--r--sysdeps/gnu/netinet/tcp.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/sysdeps/gnu/netinet/tcp.h b/sysdeps/gnu/netinet/tcp.h
index 208709febf..1783215643 100644
--- a/sysdeps/gnu/netinet/tcp.h
+++ b/sysdeps/gnu/netinet/tcp.h
@@ -153,6 +153,7 @@ enum
  */
 #define	TCP_NODELAY	0x01	/* don't delay send to coalesce packets */
 #define	TCP_MAXSEG	0x02	/* set maximum segment size */
+#define TCP_CORK	0x03	/* control sending of partial frames */
 
 #define SOL_TCP		6	/* TCP level */