try to build with this
https://github.com/dbus-cxx/libsigc--3.0.git
ATV & VIX use this links
https://github.com/OpenViX/enigma2/c...01924c2714e96c
you can contact persian OV
https://github.com/OpenVisionE2/enigma2-openvision-sh4/blob/WXbet-libsigc3/configure.ac#L438
https://github.com/OpenVisionE2/servicemp3epl/commit/6c025cf30bd5e4365aeec652d7b17aec3c1b6963