WP 34s - Latest Version?

[BarryMead]

I wanted to compile the "Emulator" for this latest 3899 version, but ran into this error
/usr/bin/ld: cannot find -lQtSerial
The loader cannot find the QtSerial library. Something changed since the compile that worked for me back at version 3886 in the QtGui build system.Does Pascal or anyone else know what is going on with the QtEmulator not compiling lately? I am trying to compile on an Ubuntu 16.04 system with all of libraries installed that compile the older 3886 version of the emulator, so I don't know why it won't compile the newer version.