There are a few extra components needed for different packages in BLFS.These are <emphasis role="bold">qtimageformats</emphasis>, <emphasis role="bold">qtlocation</emphasis>, <emphasis role="bold">qtwebchannel</emphasis>, <emphasis role="bold">qtdoc</emphasis>, and <emphasis role="bold">qtmultimedia</emphasis>.Only those components specified for a specific package are needed. You only need to build the relevant component(s).