BUILD_UBUNTU

Ubuntu 14.04 LTS Build and Install Instructions (Ubuntu 18.04 is also possible, except some steps are different)

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1. Install clang 4.0

sudo apt-get install software-properties-common
sudo apt-add-repository "deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-4.0 main"
sudo apt-get update
sudo apt-get install clang-4.0 lldb-4.0 libclang-4.0-dev

2. Install dependencies:

　Ubuntu 14.04

sudo apt-get install wget make python-dev libbz2-dev libdb++-dev libdb-dev libssl-dev openssl libreadline-dev autoconf libtool git ntp doxygen libc++-dev build-essential 
sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update
sudo apt-get install libstdc++-7-dev

　Ubuntu 18.04

sudo apt-get install wget make python-dev libbz2-dev libdb++-dev libdb-dev libssl-dev  libreadline-dev autoconf libtool git ntp doxygen libc++-dev build-essential zlib1g zlib1g-dev
sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update
sudo apt-get install libstdc++-7-dev
curl https://www.openssl.org/source/old/1.0.1/openssl-1.0.1f.tar.gz | tar xz && cd openssl-1.0.1f && sudo ./config && sudo make && sudo make install
sudo ln -sf /usr/local/ssl/bin/openssl `which openssl`

3. Install cmake

cd /tmp && wget https://cmake.org/files/v3.11/cmake-3.11.0-Linux-x86_64.sh
mkdir -p /opt/cmake && chmod +x /tmp/cmake-3.11.0-Linux-x86_64.sh
bash /tmp/cmake-3.11.0-Linux-x86_64.sh --prefix=/opt/cmake --skip-license
ln -sfT /opt/cmake/bin/cmake /usr/local/bin/cmake

4. Install boost 1.67

wget https://dl.bintray.com/boostorg/release/1.67.0/source/boost_1_67_0.tar.gz -O  boost_1_67_0.tar.gz
tar -zxvf boost_1_67_0.tar.gz && cd boost_1_67_0 && chmod +x bootstrap.sh
./bootstrap.sh --prefix=/usr
./b2 --buildtype=complete install

5. Install llvm with wasm

mkdir  ~/wasm-compiler && cd ~/wasm-compiler
git clone --depth 1 --single-branch --branch release_40 https://github.com/llvm-mirror/llvm.git
cd llvm/tools
git clone --depth 1 --single-branch --branch release_40 https://github.com/llvm-mirror/clang.git
cd .. && mkdir -p build && cd build
cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=~/opt/wasm -DLLVM_TARGETS_TO_BUILD= -DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=WebAssembly -DCMAKE_BUILD_TYPE=Release ..
make -j4 install

6. Install leveldb and snappy (It does not need to be installed by default unless you compile the plugin version）

# install leveldb
wget https://github.com/google/leveldb/archive/v1.20.tar.gz
tar xvf v1.20.tar.gz
rm -f v1.20.tar.gz
cd leveldb-1.20
make
sudo scp -r out-static/lib* out-shared/lib* "/usr/local/lib"
cd include
sudo scp -r leveldb /usr/local/include
sudo ldconfig

# install snappy
git clone https://github.com/google/snappy.git
cd snappy
mkdir build
cd build && cmake ../ 
sudo make install

7. Build GXB-Core

git clone https://github.com/gxchain/gxb-core
cd gxb-core && git checkout master
git submodule update --init --recursive

export WASM_ROOT=~/opt/wasm
export C_COMPILER=clang-4.0
export CXX_COMPILER=clang++-4.0

mkdir -p build &&  cd build
cmake -DWASM_ROOT=${WASM_ROOT} -DOPENSSL_ROOT_DIR=/usr/include/openssl \
     -DCMAKE_CXX_COMPILER="${CXX_COMPILER}" -DCMAKE_C_COMPILER="${C_COMPILER}" \
     -DOPENSSL_INCLUDE_DIR=/usr/include/openssl -DOPENSSL_LIBRARIES=/usr/lib/openssh -DCMAKE_BUILD_TYPE=Release ..

#`query_txid` plugin is off normal state, if you want to start it ,you can add `-DLOAD_TXID_PLUGIN=ON`

make -j4