This section describes how to build AppImageUpdate.AppImage and appimageupdatetool.AppImage. This implies using as few -dev packages from the distribution as possible and privately bundling everything that cannot reasonably be assumed to be there in the default installation of all target systems (distributions).
We generally recommend to use our pre-built AppImages if possible. See https://github.com/AppImage/AppImageUpdate/blob/main/.github/workflows/main.yml for how these get built.
This section describes how to build libappimageupdate and libappimage for consumption in distribution packaging. This implies using as many -dev packages from the distribution as possible.
sudo apt -y install wget git cmake g++ libcurl4-openssl-dev libx11-dev libz-dev
git clone --recursive https://github.com/AppImage/AppImageUpdate
cd AppImageUpdate/
mkdir build/
cd build/
cmake -DBUILD_QT_UI=OFF -DCMAKE_INSTALL_PREFIX=/usr ..
make -j$(nproc)
sudo make install
cd ..
# Also compile and install libappimage
sudo apt -y install libssl-dev libinotifytools0-dev libarchive-dev libfuse-dev liblzma-dev
git clone --recursive https://github.com/AppImage/AppImageKit
cd AppImageKit/
mkdir build/
cd build/
cmake -DUSE_SYSTEM_XZ=ON -DUSE_SYSTEM_INOTIFY_TOOLS=ON -DUSE_SYSTEM_LIBARCHIVE=ON -DUSE_SYSTEM_GTEST=OFF -DCMAKE_INSTALL_PREFIX=/usr ..
make -j$(nproc)
sudo make install
cat /etc/redhat-release
# CentOS Linux release 7.2.1511 (Core)
# Compile and install libappimageupdate
wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
rpm -ivh epel-release-latest-7.noarch.rpm
yum install git cmake3 gcc-c++ curl-devel libX11-devel zlib-devel
git clone --recursive https://github.com/AppImage/AppImageUpdate
cd AppImageUpdate/
mkdir build/
cd build/
cmake3 -DBUILD_QT_UI=OFF -DCMAKE_INSTALL_PREFIX=/usr ..
make -j$(nproc)
sudo make install
cd ..
# Also compile libappimage; work in progress
git clone https://github.com/AppImage/AppImageKit
cd AppImageKit/
mkdir build
cd build
cmake3 -DUSE_SYSTEM_XZ=ON -DUSE_SYSTEM_INOTIFY_TOOLS=ON -DUSE_SYSTEM_LIBARCHIVE=ON -DUSE_SYSTEM_GTEST=ON ..
make -j$(nproc)
# Section to be completed