RockPi 4B Experiments

[abcd567]

@ca249

dpkg: dependency problems prevent configuration of piaware:
 piaware depends on tcl-tls (>= 1.7.16-1+fa1); however:
  Version of tcl-tls:arm64 on system is 1.7.16-1.

Build tcl-tls from source code.
See this thread for Ubuntu Server 20.04 arm64 on Pi4

@abcd567

3 - PIAWARE

3.1 - Install dependencies

$ sudo apt install tcl8.6-dev python3-dev libz-dev    
$ sudo apt install libboost-system-dev libboost-program-options-dev   
$ sudo apt install libboost-regex-dev libboost-filesystem-dev   
$ sudo apt install net-tools tclx8.4 tcllib itcl3   

3.2 - Build & Install dependency tcl-tls from source code.

## Install dependencies
$ sudo apt install libssl-dev tcl-dev chrpath   

## Clone source code, build & Install tcl-tls
$ cd ~/  
$ git clone http://github.com/flightaware/tcltls-rebuild.git   
$ cd tcltls-rebuild   
$ ./prepare-build.sh buster   
$ cd package-buster   
$ sudo dpkg-buildpackage -b --no-sign   
$ cd ../   
$ sudo dpkg -i tcl-tls_1.7.16-1+fa1_arm64.deb   

## Issue following command to prevent Ubuntu from replacing above
## installed packages by packages from repository during any unattended upgrade.

$ sudo apt-mark hold tcl-tls 

3.3 - Clone piaware source code, build package, and install package.

$ cd ~/  
$ git clone http://github.com/flightaware/piaware_builder   
$ cd piaware_builder   
$ sudo ./sensible-build.sh bionic   

## Workaround for pyvenv: 
$ cd package-bionic    
$ sudo sed -i 's/pyvenv $(VENV) --without-pip/$(PYTHON3) -m venv $(VENV) --without-pip/' debian/rules    
$ sudo sed -i 's/python3-venv, //' debian/control    

## After above Workaround, build the piaware package
$ sudo dpkg-buildpackage -b --no-sign   
$ cd ../   
$ sudo dpkg -i piaware_3.8.1~ubuntu1804+1_arm64.deb