Comment 2 for bug 1857813

my system information:
PF16W6Y2 ~ # uname -a
Linux PF16W6Y2 5.3.18-gentoo #1 SMP PREEMPT Thu Dec 19 22:34:27 MSK 2019 x86_64 Intel(R) Core(TM) i7-8850H CPU @ 2.60GHz GenuineIntel GNU/Linux

* dependency graph for media-sound/mixxx-2.2.3
 `-- media-sound/mixxx-2.2.3 ~amd64
   `-- dev-db/sqlite-3.30.1 (dev-db/sqlite) amd64
   `-- dev-libs/glib-2.60.7 (dev-libs/glib) ~amd64
   `-- dev-libs/protobuf-3.10.1 (dev-libs/protobuf) ~amd64
   `-- dev-qt/qtconcurrent-5.14.0 (dev-qt/qtconcurrent) ~amd64
   `-- dev-qt/qtcore-5.14.0 (dev-qt/qtcore) ~amd64
   `-- dev-qt/qtdbus-5.14.0 (dev-qt/qtdbus) ~amd64
   `-- dev-qt/qtgui-5.14.0-r1 (dev-qt/qtgui) ~amd64
   `-- dev-qt/qtnetwork-5.14.0 (dev-qt/qtnetwork) ~amd64
   `-- dev-qt/qtopengl-5.14.0 (dev-qt/qtopengl) ~amd64
   `-- dev-qt/qtscript-5.14.0 (dev-qt/qtscript) ~amd64 [scripttools]
   `-- dev-qt/qtsql-5.14.0 (dev-qt/qtsql) ~amd64
   `-- dev-qt/qtsvg-5.14.0 (dev-qt/qtsvg) ~amd64
   `-- dev-qt/qtwidgets-5.14.0 (dev-qt/qtwidgets) ~amd64
   `-- dev-qt/qtx11extras-5.14.0 (dev-qt/qtx11extras) ~amd64
   `-- dev-qt/qtxml-5.14.0 (dev-qt/qtxml) ~amd64
   `-- media-libs/chromaprint-1.4.3 (media-libs/chromaprint) amd64
   `-- media-libs/flac-1.3.3 (media-libs/flac) ~amd64
   `-- media-libs/libid3tag-0.15.1b-r4 (media-libs/libid3tag) amd64
   `-- media-libs/libogg-1.3.4 (media-libs/libogg) ~amd64
   `-- media-libs/libsndfile-1.0.29_pre2_p20191024 (media-libs/libsndfile) ~amd64
   `-- media-libs/libsoundtouch-2.1.2 (>=media-libs/libsoundtouch-1.5) ~amd64
   `-- media-libs/libvorbis-1.3.6-r1 (media-libs/libvorbis) ~amd64
   `-- media-libs/portaudio-19.06.00-r2 (>=media-libs/portaudio-19_pre) ~amd64
   `-- media-libs/portmidi-217-r3 (media-libs/portmidi) ~amd64
   `-- media-libs/rubberband-1.8.2 (media-libs/rubberband) ~amd64
   `-- media-libs/taglib-1.11.1_p20190920-r1 (media-libs/taglib) ~amd64
   `-- media-libs/vamp-plugin-sdk-2.7.1 (media-libs/vamp-plugin-sdk) amd64
   `-- sci-libs/fftw-3.3.8 (sci-libs/fftw) ~amd64
   `-- sys-power/upower-0.99.11 (sys-power/upower) ~amd64
   `-- virtual/libusb-1-r2 (virtual/libusb) amd64
   `-- virtual/opengl-7.0-r2 (virtual/opengl) amd64
   `-- x11-libs/libX11-1.6.9 (x11-libs/libX11) ~amd64
   `-- media-libs/faad2-2.9.0 (media-libs/faad2) amd64
   `-- media-libs/libmp4v2-2.0.0-r1 (media-libs/libmp4v2) ~amd64
   `-- dev-libs/hidapi-0.8.0_rc1_p20140719 (dev-libs/hidapi) amd64
   `-- media-libs/lilv-0.24.6 (>=media-libs/lilv-0.24.2-r3) ~amd64
   `-- media-libs/libmad-0.15.1b-r9 (media-libs/libmad) amd64
   `-- media-libs/opusfile-0.11 (media-libs/opusfile) ~amd64
   `-- media-libs/libshout-2.4.3 (media-libs/libshout) ~amd64
   `-- media-sound/wavpack-5.1.0-r1 (media-sound/wavpack) amd64
   `-- media-video/ffmpeg-4.2.1 (media-video/ffmpeg) ~amd64
   `-- virtual/pkgconfig-1 (virtual/pkgconfig) amd64
   `-- dev-qt/qttest-5.14.0 (dev-qt/qttest) ~amd64
   `-- dev-qt/qtxmlpatterns-5.14.0 (dev-qt/qtxmlpatterns) ~amd64
   `-- dev-util/scons-3.1.2 (dev-util/scons) ~amd64 [python_targets_python2_7]