SUSv3 doesn't require IPPROTO_SCTP so some systems might not provide it.
IPPROTO_SCTP isn't used in the tree yet so this doesn't fix a real bug.
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ben Pfaff <blp@nicira.com>
#define IP_IHL(ip_ihl_ver) ((ip_ihl_ver) & 15)
#define IP_IHL_VER(ihl, ver) (((ver) << 4) | (ihl))
+#ifndef IPPROTO_SCTP
+#define IPPROTO_SCTP 132
+#endif
+
/* TOS fields. */
#define IP_ECN_MASK 0x03
#define IP_DSCP_MASK 0xfc