Can't build on raspberry pi buster

[mgrouch]

sudo apt-get install cmake libqt5webkit5-dev libqt5virtualkeyboard5-dev libqt5websockets5-dev libqt5widgets5 libqt5multimedia5 libqt5webenginewidgets5 libqt5webkit5-dev libqt5webview5-dev libqt5multimedia5-plugins libqt5webengine5 libqt5webengine-data qtwebengine5-dev qtmultimedia5-dev libsqlite3-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libqt5webenginewidgets5 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

Package libqt5webengine5 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source