Install LevelDB with snappy Ubuntu:
sudo apt-get update
sudo apt install build-essential
sudo apt-get install libsnappy-dev
wget https://github.com/google/leveldb/archive/v1.20.tar.gz && \
tar -zxvf v1.20.tar.gz && \
cd leveldb-1.20/ && \
make && \
sudo cp -r out-static/lib* out-shared/lib* /usr/local/lib/ && \
cd include/ && \
sudo cp -r leveldb /usr/local/include/ && \
sudo ldconfig && \
rm -f v1.20.tar.gz