Required_Packages.txt

For a ubuntu 20.04 system, here are some packages/directories
that you will need installed. Other systems will need similar packages
installed.

sudo apt update
sudo apt install \
  ant autoconf autoconf-archive autogen autopoint bc bin86 bison \
  bmap-tools build-essential byacc cmake curl device-tree-compiler \
  doxygen flex gawk genext2fs gengetopt genisoimage gettext git gperf \
  gtk-doc-tools haserl iasl intltool lib32stdc++6 libc6-dev-i386 \
  libc6-i386 libdbus-glib-1-dev libelf-dev libgmp3-dev liblzma-dev \
  liblzma-dev:i386 libmpc-dev libncurses5-dev libssl-dev libtool lynx \
  lzma-dev ninja-build pkg-config python2-dev python3-pip python3-venv \
  ruby-sass scons syslinux syslinux-utils tcl tftpd-hpa u-boot-tools \
  xutils-dev zlib1g-dev zlib1g:i386

# The following installs python2 m2crypto for building user/crda
sudo apt install swig python-is-python3
curl https://bootstrap.pypa.io/pip/2.7/get-pip.py | sudo python2 -
sudo pip2 install m2crypto future

For 64bit systems you needs some 32bit compat packages:

  sudo apt-get install libc6-i386

And finally somewhere for the firmware to go thats useful:

  sudo mkdir /tftpboot
  sudo chmod 777 /tftpboot

For some x86 platform build targets you will also need qemu installed.