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wget http://pkgs.fedoraproject.org/repo/pkgs/snappy/snappy-1.0.5.tar.gz/4c0af044e654f5983f4acbf00d1ac236/snappy-1.0.5.tar.gz
tar -xf snappy-1.0.5.tar.gz
cd snappy-1.0.5
./configure --disable-shared --with-pic --host aarch64-unknown-linux --build aarch64-unknown-linux
make -j4
cd ..
git clone git://github.com/chirino/leveldb.git
git clone git://github.com/fusesource/leveldbjni.git
export SNAPPY_HOME=`cd snappy-1.0.5; pwd`
export LEVELDB_HOME=`cd leveldb; pwd`
export LEVELDBJNI_HOME=`cd leveldbjni; pwd`
cd leveldb
export LIBRARY_PATH=${SNAPPY_HOME}
export C_INCLUDE_PATH=${LIBRARY_PATH}
export CPLUS_INCLUDE_PATH=${LIBRARY_PATH}
git apply ../leveldbjni/leveldb.patch
wget https://raw.githubusercontent.com/google/leveldb/master/port/atomic_pointer.h -O port/atomic_pointer.h
make libleveldb.a

Note: If you face following error on CentOS7
error: #error This file requires compiler and library support for the 
ISO C++ 2011 standard. This support is currently experimental, and must 
be enabled with the -std=c++11 or -std=gnu++11 compiler options.

You have to edit Makefile and add CXXFLAGS +="-std=c++11"

cd ${LEVELDBJNI_HOME}
git checkout -b 1.8 leveldbjni-1.8
mvn clean install -P all -P linux64 -DskipTests=truetruebn