http://toms-cafe.de/vdr/download/extb-0.3.1-vdr-1.7.13.diff
compile fix up from vdr-1.7.13

--- extb-0.3.1/extboardio.c
+++ extb-0.3.1/extboardio.c
@@ -361,10 +361,16 @@ void cExtBoardIO::Channel(int nChannelNu
       m_nChannel  |= (0 != pChannel->Tpid()) ?eHasTpid:0;
 
       if(pChannel->IsSat()) {
+#if VDRVERSNUM >= 10713
+        cDvbTransponderParameters dtp(pChannel->Parameters());
+        char polarization = dtp.Polarization();
+#else
+        char polarization = pChannel->Polarization();
+#endif
         m_nChannel  |= eIsSourceSat;
-        if (toupper(pChannel->Polarization()) == 'V')
+        if (toupper(polarization) == 'V')
           m_nChannel  |= eIsSatVPolar;
-        if (toupper(pChannel->Polarization()) == 'H')
+        if (toupper(polarization) == 'H')
           m_nChannel  |= eIsSatHPolar;
       }  
       else if(pChannel->IsCable())