--- udt4/src/channel.cpp.orig	2010-05-16 14:38:54.000000000 +0000
+++ udt4/src/channel.cpp
@@ -142,7 +142,7 @@ void CChannel::open(UDPSOCKET udpsock)
 
 void CChannel::setUDPSockOpt()
 {
-   #if defined(BSD) || defined(OSX)
+   #if defined(BSD) || defined(OSX) || defined(__QNXNTO__)
       // BSD system will fail setsockopt if the requested buffer size exceeds system maximum value
       int maxsize = 64000;
       if (0 != setsockopt(m_iSocket, SOL_SOCKET, SO_RCVBUF, (char*)&m_iRcvBufSize, sizeof(int)))