bug#31661: Musescore broke after last Qt update (5.11)

[Nicolas Goaziou]

Hello,

Since Qt update, building Musescore consistently fails with the
following error message:

    [ 73%] Building CXX object mscore/CMakeFiles/mscore.dir/musescore.cpp.o
    In file included from 
/tmp/guix-build-musescore-2.2.1.drv-0/MuseScore-2.2.1/mscore/musescore.cpp:109:0:
    
/tmp/guix-build-musescore-2.2.1.drv-0/MuseScore-2.2.1/mscore/startcenter.h:20:20:
 fatal error: QWebView: No such file or directory
    compilation terminated.
    make[3]: *** [mscore/CMakeFiles/mscore.dir/build.make:1365: 
mscore/CMakeFiles/mscore.dir/musescore.cpp.o] Error 1

I'm not sure about how to fix it at this point.

Regards,

-- 
Nicolas Goaziou                                                0x80A93738