[vdr] vdr-1.5.1 compile error

I've just added a DVB-C card into my machine (had been using pvr's for a while) and am getting a compile error:

/usr/src/development/v4l-dvb/linux/include/linux/dvb/osd.h:107: error: variable or field '__user' declared void /usr/src/development/v4l-dvb/linux/include/linux/dvb/osd.h:107: error: expected ';' before '*' token dvbosd.c: In member function 'void cDvbOsd::Cmd(OSD_Command, int, int, int, int, int, const void*)': dvbosd.c:104: error: 'struct osd_cmd_t' has no member named 'data' make: *** [dvbosd.o] Error 1

The v4l-dvb sources are fresh from hg.

any ideas?