Okay, I seem to have gone and answered my own question! For some reason I couldn't do: template class ost::TRTPSessionBase<ost::RTPBaseUDPIPv4Socket, ost::RTPBaseUDPIPv4Socket, ost::AVPQueue>; Because I'd get a few of the following back: ccrtp/rtp.h: In member function 'ost::IPV4Host ost::TRTPSessionBase<RTPDataChannel, RTCPChannel, ServiceQueue>::getDataSender(ost::tpport_t*) const [with RTPDataChannel = ost::RTPBaseUDPIPv4Socket, RTCPChannel = ost::RTPBaseUDPIPv4Socket, ServiceQueue = ost::AVPQueue]': rtpaudioport.cpp:24: instantiated from here ccrtp/rtp.h:205: error: no matching function for call to 'ost::RTPBaseUDPIPv4Socket::getSender(ost::tpport_t*&)' ccrtp/channel.h:114: note: candidates are: ost::IPV4Host ost::RTPBaseUDPIPv4Socket::getSender(ost::tpport_t&) const But I can do: inline template class ost::TRTPSessionBase<ost::RTPBaseUDPIPv4Socket, ost::RTPBaseUDPIPv4Socket, ost::AVPQueue>; And that seems to generate the necessary class information. Still seems like a bit of a mystery that this has to be specifically generated though... is there a reason for that? Also, I have to turn off -pedantic-errors to compile that, as it's a non-standard extension. Is there any way I can specify an -fno-<something> option to turn this error off: error: ISO C++ forbids the use of 'inline' on explicit instantiations Thanks again, John G
