# Note: depends on zlib
wget -c https://github.com/libgd/libgd/releases/download/gd-2.3.0/libgd-2.3.0.tar.xz
tar -xJf libgd-2.3.0.tar.xz
cd libgd-2.3.0
mkdir -p build
cd build
../configure --prefix="/usr"
make # Doesn't mind -j#
make install