cross compile litecoin Ubuntu 18.04.6

sudo apt-get install build-essential libtool autotools-dev automake pkg-config libssl-dev libevent-dev bsdmainutils libboost-system-dev libboost-filesystem-dev libboost-chrono-dev libboost-program-options-dev libboost-test-dev libboost-thread-dev libnm-dev libminiupnpc-dev sqlite3 glibc-source libxkbcommon-dev -y

sudo add-apt-repository ppa:bitcoin/bitcoin

sudo apt-get install libdb4.8-dev libdb4.8++-dev libminiupnpc-dev libzmq3-dev libqt5gui5 libqt5core5a libqt5dbus5 qttools5-dev qttools5-dev-tools libprotobuf-dev protobuf-compiler libqrencode-dev g++-mingw-w64-i686 mingw-w64-i686-dev g++-mingw-w64-x86-64 mingw-w64-x86-64-dev curl doxygen libleveldb-dev libnatpmp-dev -y

sudo update-alternatives --config i686-w64-mingw32-g++ # Set the default mingw32 g++ compiler option to posix.
sudo update-alternatives --config x86_64-w64-mingw32-g++ # Set the default mingw32 g++ compiler option to posix.

get clone https://github.com/litecoin-project/litecoin.git

cd litecoin/depends
make download
make
cd ..
./autogen.sh
./configure --enable-glibc-back-compat --prefix=`pwd`/depends/x86_64-pc-linux-gnu LDFLAGS="-static-libstdc++"
make clean
make

cd depends
make HOST=x86_64-w64-mingw32 -j4
cd ..
./configure --prefix=`pwd`/depends/x86_64-w64-mingw32
make clean
make

cd depends
make HOST=i686-w64-mingw32 -j4
cd ..
./configure --prefix=`pwd`/depends/i686-w64-mingw32
make clean
make