+ LV2: attempt at fixing compilation with no LV2
+ LV2: attempt at fixing compilation with no LV2

jnetterf/calf,adiknoth/calf,adiknoth/calf,adiknoth/calf,adiknoth/calf,jnetterf/calf,adiknoth/calf,jnetterf/calf,zamaudio/calf-LR4,jnetterf/calf,zamaudio/calf-LR4,zamaudio/calf-LR4,zamaudio/calf-LR4,zamaudio/calf-LR4,jnetterf/calf