@@ -1327,10 +1327,16 @@
 	])
 	AC_CHECK_HEADER(netinet/tcp.h, [
 		AC_DEFINE(OF_HAVE_NETINET_TCP_H, 1,
 			[Whether we have netinet/tcp.h])
 	])
+	AC_CHECK_HEADER(netinet/sctp.h, [
+		AC_DEFINE(OF_HAVE_SCTP, 1, [Whether we have SCTP])
+		AC_DEFINE(OF_HAVE_NETINET_SCTP_H, 1,
+			[Whether we have netinet/sctp.h])
+		AC_SUBST(OF_SCTP_SOCKET_M, OFSCTPSocket.m)
+	])
 	AC_CHECK_HEADERS([arpa/inet.h netdb.h])
 	AC_CHECK_HEADER(netipx/ipx.h, [
 		AC_DEFINE(OF_HAVE_NETIPX_IPX_H, 1,
 			[Whether we have netipx/ipx.h])
 	])