sudo apt-get update
sudo apt-get upgrade -y
sudo apt-get dist-upgrade -y
sudo raspi-config
# from [6] Advanced Options
# select [A1] Expand Filesystem
# then select Finish and the Reboot
sudo raspi-config
# from [5] Localization Options
# select [L1] Locale
# scroll down and untick [en.GB.UTF-8 UTF-8]
# scroll down and tick   [en.US.UTF-8 UTF-8]
# then select OK
# next scroll down to [en_UTF-8 UTF-8] and select OK
# From the next screen select [Finish]
# then reboot

# from the terminal:
# install some additional required dependencies
# which may or may not be already installed:
sudo apt install libfltk1.3-dev libudev-dev libjpeg-dev libjpeg62-turbo-dev libboost-all-dev libfftw3-dev
sudo apt install libxrender-dev libxcursor-dev libxfixes-dev qtmultimedia5-dev
sudo apt install libxext-dev x11proto-xext-dev libfontconfig-dev qttools5-dev qttools5-dev-tools
sudo apt install libfontconfig1-dev libxft-dev uuid-dev libxinerama-dev x11proto-xinerama-dev
sudo apt install libegl-dev libqt5opengl5 libqt5opengl5-dev libqt5serialport5 libqt5serialport5-dev
sudo apt install libqt5test5 libvulkan-dev qt5-qmake qt5-qmake-bin qtbase5-dev qtbase5-dev-tools qtchooser
sudo apt install libqt5multimedia5 libqt5multimedia5-plugins libqt5multimediagsttools5 libqt5multimediawidgets5
sudo apt install libboost-log1.74.0 autoconf autoconf2.69 automake autotools-dev libsigsegv2 m4
sudo apt install libreadline-dev libusb-1.0-0-dev portaudio19-dev cmake texinfo asciidoc asciidoctor
sudo apt install libapr1 libaprutil1 libserf-1-1 libsvn1 libutf8proc2 subversion libqt5websockets5 libqt5websockets5-dev
sudo ldconfig


# if on  Raspberry Pi3B+, TEMPORARILY increase
# swapfile size for application builds:
# (may not be required for Raspberry Pi4 installations)
cd /etc
sudo dphys-swapfile swapoff
sudo nano dphys-swapfile
# locate the line   CONF_SWAPSIZE=100
# and change it to  CONF_SWAPSIZE=1024
# then <ctrl-o> and <ctrl-x> to save the change and exit.
sudo dphys-swapfile setup
# makes the swapfile size change, then:
sudo dphys-swapfile swapon


# download, make and install flxmlrpc:
cd ~/Downloads
wget http://www.w1hkj.com/files/flxmlrpc/flxmlrpc-0.1.4.tar.gz
tar -zxvf flxmlrpc-0.1.4.tar.gz
cd flxmlrpc-0.1.4
./configure --prefix=/usr/local --enable-static
make -j4
sudo make install
sudo ldconfig


# download, make and install flrig:
cd ~/Downloads
wget http://www.w1hkj.com/files/flrig/flrig-1.4.7.tar.gz
tar -zxvf flrig-1.4.7.tar.gz
cd flrig-1.4.7
./configure --prefix=/usr/local --enable-static
make -j4
sudo make install
sudo ldconfig
sudo reboot

# start flrig, and configure for proper transceiver:
# from [applications bar] pulldown menu, open [internet]
# and locate the [flrig] icon.
# right-click on that icon, and select [add to desktop]
# then close the [applications] menus
# double-click on the [flrig.desktop] icon to start the application
# configure flrig, as required/desired
# if all is OK, close flrig application


# install wsjtx 2.5.4 and its modified build of hamlib:
# open a terminal session:
cd ~
mkdir build
cd build
wget https://sourceforge.net/projects/wsjt/files/wsjtx-2.5.4.tgz
tar xzf wsjtx-2.5.4.tgz
mkdir build
cd build
cmake -Wno-dev -DWSJT_SKIP_MANPAGES=ON -DWSJT_GENERATE_DOCS=OFF ../wsjtx-2.5.4
sudo cmake --build . --target install
sudo ldconfig
sudo reboot

# from [applications bar] pulldown menu, open [sound and video]
# and locate the [wsjtx] icon.
# right-click on that icon, and select [add to desktop]
# then close the [applications] menus
# double-click on the [flrig] desktop icon to start flrig
# #double-click on the [wsjtx] desktop icon to start wsjtx
# configure wstjx, as required/desired
# if all is OK, close the [wsjtx] and [flrig] applications



# begin modified jtdx-hamlib installation:
# first, download and build a modified hamlib
# open a terminal session
cd ~
mkdir ~/hamlib-prefix
cd ~/hamlib-prefix
git clone git://git.code.sf.net/p/jtdx/hamlib src
cd src
./bootstrap
mkdir ../build
cd ../build
../src/configure --prefix=$HOME/hamlib-prefix \
   --disable-static --enable-shared --without-readline \
   --without-indi --without-cxx-binding --disable-winradio \
   CFLAGS="-g -O2 -fdata-sections -ffunction-sections" \
   LDFLAGS="-Wl,--gc-sections"
make -j4
make install-strip
sudo ldconfig

# begin jtdx application installation
mkdir -p ~/jtdx-prefix/build
cd ~/jtdx-prefix
git clone git://git.code.sf.net/p/jtdx/code src
cd ~/jtdx-prefix/build
cmake -D CMAKE_PREFIX_PATH=~/hamlib-prefix ../src
cmake --build .
# (ignore the array-size, stack-size and deprecation compiler warnings)
sudo cmake --build . --target install
sudo ldconfig
sudo reboot


# from the [applications bar] select [sound and video]
# right-click on the [jtdx] icon and select [add to desktop]
# close the [applications bar]

# on the desktop, double-click the [flrig] icon
# on the desktop, double-click the [jtdx] icon and
# wait a short time for the jtdx application to open
# then, configure the jtdx application as required/desired.

# close [jtdx] and [flrig]



# now return the swapfile to original status:
# open a terminal window, and:
cd ~
cd /etc
sudo dphys-swapfile swapoff
sudo nano dphys-swapfile
# locate the line   CONF_SWAPSIZE=1024
# and change it to  CONF_SWAPSIZE=100
# then <crtl-o> and <ctrl-x> to save the change.
sudo dphys-swapfile setup
# makes the swapfile size change, then:
sudo dphys-swapfile swapon
# close the terminal session




# Note:
# to update and rebuild the jtdx version of hamlib:

cd ~/hamlib-prefix/src
git pull

# then, rebuild the jtdx hamlib version with the updated sources:
cd ~/hamlib-prefix/build
make -j4 
make install-strip
sudo ldconfig
sudo reboot


# to update to the latest jtdx sources:

cd ~/jtdx-prefix/src
git pull

# then, rebuild jtdx with news source code:
cd ~/jtdx-prefix/build
cmake --build .
sudo cmake --build . --target install
sudo ldconfig
sudo reboot