>> +    (inputs
>> +     `(("curl" ,curl)
>> +       ("freetype" ,freetype)
>> +       ("ftgl" ,ftgl)
>> +       ("glew" ,glew)
>> +       ("libjpeg-turbo" ,libjpeg-turbo)
>> +       ("megaglest-data" ,megaglest-data)
>> +       ("mesa" ,mesa)
>> +       ("miniupnpc" ,miniupnpc)
>> +       ("openal" ,openal)
>> +       ("libircclient" ,libircclient)
>> +       ("libpng" ,libpng)
>> +       ("libvorbis" ,libvorbis)
>> +       ("libxml2" ,libxml2)
>> +       ("lua" ,lua)
>> +       ("sdl2" ,sdl2)
>> +       ("wxwidgets" ,wxwidgets)))
>
> Please double-check that the build package keeps references to all these
> inputs with $(guix gc --reference $(./pre-inst-env guix build
> megaglest)).

I double-checked this, and removed libxml2 and freetype.