Index: configure.ac
==================================================================
--- configure.ac
+++ configure.ac
@@ -1489,20 +1489,14 @@
 	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_SEARCH_LIBS(sctp_recvv, sctp, [
-			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(USE_SRCS_SCTP, '${SRCS_SCTP}')
-
-			AS_IF([test x"$ac_lib" != x""], [
-				OBJFW_LIBS="$OBJFW_LIBS -l$ac_lib"
-			])
-		])
+		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(USE_SRCS_SCTP, '${SRCS_SCTP}')
 	])
 	AC_CHECK_HEADERS([arpa/inet.h netdb.h sys/sockio.h])
 	AC_CHECK_HEADERS([net/if.h], [], [], [
 		#ifdef OF_HAVE_SYS_SOCKET_H
 		# include <sys/socket.h>

Index: src/OFSCTPSocket.m
==================================================================
--- src/OFSCTPSocket.m
+++ src/OFSCTPSocket.m
@@ -361,28 +361,41 @@
 	ssize_t ret;
 	struct iovec iov = {
 		.iov_base = buffer,
 		.iov_len = length
 	};
-	struct sctp_rcvinfo rcvinfo;
-	socklen_t rcvinfoSize = (socklen_t)sizeof(rcvinfo);
-	unsigned int infotype = SCTP_RECVV_RCVINFO;
-	int flags = 0;
+	char cmsgBuffer[CMSG_SPACE(sizeof(struct sctp_rcvinfo))];
+	struct msghdr msg = {
+		.msg_iov = &iov,
+		.msg_iovlen = 1,
+		.msg_control = cmsgBuffer,
+		.msg_controllen = sizeof(cmsgBuffer)
+	};
+	struct cmsghdr *cmsg;
 
 	if (_socket == OFInvalidSocketHandle)
 		@throw [OFNotOpenException exceptionWithObject: self];
 
-	if ((ret = sctp_recvv(_socket, &iov, 1, NULL, NULL,
-	    &rcvinfo, &rcvinfoSize, &infotype, &flags)) < 0)
+	if ((ret = recvmsg(_socket, &msg, 0)) < 0)
 		@throw [OFReadFailedException
 		    exceptionWithObject: self
 			requestedLength: length
 				  errNo: _OFSocketErrNo()];
 
-	if (info != NULL) {
-		if (infotype == SCTP_RECVV_RCVINFO &&
-		    rcvinfoSize >= (socklen_t)sizeof(rcvinfo)) {
+	if (info == NULL)
+		return ret;
+
+	*info = nil;
+
+	for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL;
+	    cmsg = CMSG_NXTHDR(&msg, cmsg)) {
+		if (cmsg->cmsg_level != IPPROTO_SCTP)
+			continue;
+
+		if (cmsg->cmsg_type == SCTP_RCVINFO) {
+			struct sctp_rcvinfo rcvinfo;
+			memcpy(&rcvinfo, CMSG_DATA(cmsg), sizeof(rcvinfo));
 			OFNumber *streamID = [OFNumber numberWithUnsignedShort:
 			    rcvinfo.rcv_sid];
 			OFNumber *PPID = [OFNumber numberWithUnsignedLong:
 			    rcvinfo.rcv_ppid];
 			OFNumber *unordered = [OFNumber numberWithBool:
@@ -390,12 +403,13 @@
 
 			*info = [OFDictionary dictionaryWithKeysAndObjects:
 			    OFSCTPStreamID, streamID,
 			    OFSCTPPPID, PPID,
 			    OFSCTPUnordered, unordered, nil];
-		} else
-			*info = [OFDictionary dictionary];
+
+			break;
+		}
 	}
 
 	return ret;
 }
 
@@ -467,19 +481,31 @@
 		.snd_ppid = (uint32_t)
 		    [[info objectForKey: OFSCTPPPID] unsignedLongValue],
 		.snd_flags = ([[info objectForKey: OFSCTPUnordered] boolValue]
 		    ? SCTP_UNORDERED : 0)
 	};
+	char cmsgBuffer[CMSG_SPACE(sizeof(sndinfo))];
+	struct cmsghdr *cmsg = (struct cmsghdr *)(void *)&cmsgBuffer;
+	struct msghdr msg = {
+		.msg_iov = &iov,
+		.msg_iovlen = 1,
+		.msg_control = &cmsgBuffer,
+		.msg_controllen = sizeof(cmsgBuffer)
+	};
 
 	if (_socket == OFInvalidSocketHandle)
 		@throw [OFNotOpenException exceptionWithObject: self];
 
 	if (length > SSIZE_MAX)
 		@throw [OFOutOfRangeException exception];
 
-	if ((bytesWritten = sctp_sendv(_socket, &iov, 1, NULL, 0, &sndinfo,
-	    (socklen_t)sizeof(sndinfo), SCTP_SENDV_SNDINFO, 0)) < 0)
+	cmsg->cmsg_level = IPPROTO_SCTP;
+	cmsg->cmsg_type = SCTP_SNDINFO;
+	cmsg->cmsg_len = CMSG_LEN(sizeof(sndinfo));
+	memcpy(CMSG_DATA(cmsg), &sndinfo, sizeof(sndinfo));
+
+	if ((bytesWritten = sendmsg(_socket, &msg, 0)) < 0)
 		@throw [OFWriteFailedException
 		    exceptionWithObject: self
 			requestedLength: length
 			   bytesWritten: 0
 				  errNo: _OFSocketErrNo()];