Introduction

The old GitBash build environment is deprecated and we use now the Msys2 that supports a package system for updates.

• Download the msys2 installer from https://msys2.github.io

• Install Msys2 following the instructions on the web site.
• You can either install the i686 (32 bit) or x86_64 (64 bit) version, this applies to host used. Both installers support Win32 and Win64 shells.
• Update Msys2 to the latest available binaries following steps 5 to 7 of Msys2 installation guide.

pacman -Syu

If you get build errors when pulling new code later, always try re-running "pacman -Syu" as that will often resolve build problems.

cd ~
pwd

Add LibrePilot MinGW repository

Add the following lines at the end of your /etc/pacman.conf file:

[librepilot-mingw]
SigLevel = Optional TrustAll
Server = http://download.librepilot.org/repo/mingw

Paste this code into the bash-window to add the above lines to /etc/pacman.conf

echo "[librepilot-mingw]" >> /etc/pacman.conf
echo "SigLevel = Optional TrustAll" >> /etc/pacman.conf
echo "Server = http://download.librepilot.org/repo/mingw" >> /etc/pacman.conf

Install required packages

If you followed the previous instructions from the msys2 website, you have now a fresh build environment.

• Start a MinGW-w64 Win32 Shell or MinGW-w64 Win64 Shell but not a MSYS2 Shell
  
• Install the dependent packages that match your MinGW shell.

For 32 bit:

pacman -Sy
pacman -S --needed git unzip tar mingw-w64-i686-toolchain mingw-w64-i686-ccache mingw-w64-i686-ntldd mingw-w64-i686-qt5 mingw-w64-i686-SDL mingw-w64-i686-mesa mingw-w64-i686-openssl mingw-w64-i686-gdal-minimal mingw-w64-i686-OpenSceneGraph mingw-w64-i686-osgearth
pacman -S --needed mingw-w64-i686-graphite2 mingw-w64-i686-nghttp2
pacman -S --needed mingw-w64-i686-gst-plugins-base mingw-w64-i686-gst-plugins-good mingw-w64-i686-gst-plugins-bad mingw-w64-i686-gst-plugins-ugly  mingw-w64-i686-gst-libav

Optionally install debug packages:

pacman -S --needed mingw-w64-i686-OpenSceneGraph-debug mingw-w64-i686-osgearth-debug

For 64 bit:

pacman -Sy
pacman -S --needed git unzip tar mingw-w64-x86_64-toolchain mingw-w64-x86_64-ccache mingw-w64-x86_64-ntldd mingw-w64-x86_64-qt5 mingw-w64-x86_64-SDL mingw-w64-x86_64-mesa mingw-w64-x86_64-openssl mingw-w64-x86_64-gdal-minimal mingw-w64-x86_64-OpenSceneGraph mingw-w64-x86_64-osgearth
pacman -S --needed mingw-w64-x86_64-gst-plugins-base mingw-w64-x86_64-gst-plugins-good mingw-w64-x86_64-gst-plugins-bad mingw-w64-x86_64-gst-plugins-ugly mingw-w64-x86_64-gst-libav

Optionally install debug packages:

pacman -S --needed mingw-w64-x86_64-OpenSceneGraph-debug mingw-w64-x86_64-osgearth-debug

When pacman ask for default selection=All, hit Enter and next step  you should say 'Y' to start download.

This can take a while, fast internet connection preferred !

After download pacman will install all packages automatically.

echo "alias make=mingw32-make" >> ~/.bashrc && . ~/.bashrc

Get the code using Msys2

• Start a Win32 or Win64 shell
• By default the shell start in home/[username], if you want to return back to home dir type: cd ~
• Clone repository using git command :

git clone https://bitbucket.org/librepilot/librepilot.git

Using mingw32-make:

mingw32-make all_sdk_install

 (NOTE:  Network transfers may fail.  If you see errors just keep re-executing the command until if completes successfully.  If asked to replace files, answer 'y' or 'A')

Basically you just need to type:

mingw32-make package

It will build the UAVObjGenerator utility and all firmwares:

 Then GCS software:

Finally all files are packaged using the Nsis software installer.

At end, the LibrePilot software installer can be found in ~/librepilot/build/ directory.