faust2lv2: -gui not working

[ghost]

after compiling the latest commit of faust, i tried building an lv2 plugin with both the qt4 and qt5 gui. the plugin builds and loads in the hosts i tested (ardour, radium, jalv) but without a gui

i should note i modified the faust2lv2 script. i only changed lines 206 and 207 to point to my qmake binary, and i don't know whether this is why

thanks in advance!