#define SO_PEERCRED 17
#define SO_RCVLOWAT 18
#define SO_SNDLOWAT 19
-#define SO_RCVTIMEO 20
-#define SO_SNDTIMEO 21
#define SO_ACCEPTCONN 30
#define SO_PEERSEC 31
#define SO_SNDBUFFORCE 32
#define SO_DOMAIN 39
#endif
+#ifndef SO_RCVTIMEO
+#define SO_RCVTIMEO 20
+#define SO_SNDTIMEO 21
+#endif
+
+#ifndef SO_TIMESTAMP
+#define SO_TIMESTAMP 29
+#define SO_TIMESTAMPNS 35
+#define SO_TIMESTAMPING 37
+#endif
+
#define SO_SECURITY_AUTHENTICATION 22
#define SO_SECURITY_ENCRYPTION_TRANSPORT 23
#define SO_SECURITY_ENCRYPTION_NETWORK 24
#define SO_GET_FILTER SO_ATTACH_FILTER
#define SO_PEERNAME 28
-#define SO_TIMESTAMP 29
#define SCM_TIMESTAMP SO_TIMESTAMP
-
#define SO_PASSSEC 34
-#define SO_TIMESTAMPNS 35
#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#define SO_MARK 36
-#define SO_TIMESTAMPING 37
#define SCM_TIMESTAMPING SO_TIMESTAMPING
#define SO_RXQ_OVFL 40
#define SO_WIFI_STATUS 41