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-rw-r--r--include/sys/socket.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sys/socket.h b/include/sys/socket.h
index 40de3369..8a015a86 100644
--- a/include/sys/socket.h
+++ b/include/sys/socket.h
@@ -255,6 +255,7 @@ struct linger
 #define MSG_NOSIGNAL  0x4000
 #define MSG_MORE      0x8000
 #define MSG_WAITFORONE 0x10000
+#define MSG_FASTOPEN  0x20000000
 #define MSG_CMSG_CLOEXEC 0x40000000
 
 #define __CMSG_LEN(cmsg) (((cmsg)->cmsg_len + sizeof(long) - 1) & ~(long)(sizeof(long) - 1))