相关工具
yum install -y gcc gcc-c++ autoconf libtool
yum groupinstall -y "Development Tools"
下载源码
git clone https://github.com/grpc/grpc.git
cd grpc
git submodule update --init
编译安装protobuf
cd third_party/protobuf/
./autogen.sh
./configure
make
make install
ldconfig # refresh shared library cache.
which protoc
protoc --version
autogen.sh里需要下载Google Code的代码，需要保障其能被访问
编译安装grpc
cd ../..
make
问题：
/root/git/grpc/bins/opt/grpc_cpp_plugin: error while loading shared libraries: libprotoc.so.15: cannot open shared object file: No such file or directory
解决办法：
echo $LD_LIBRARY_PATH
export LD_LIBRARY_PATH=/usr/local/lib/:/root/git/grpc/libs/opt/
make
make install
测试C++ Demo
cd examples/cpp/helloworld
make
问题：
Package protobuf was not found in the pkg-config search path.
Perhaps you should add the directory containing `protobuf.pc'
to the PKG_CONFIG_PATH environment variable
No package 'protobuf' found
解决办法：
echo $PKG_CONFIG_PATH
export PKG_CONFIG_PATH=/root/git/grpc/libs/opt/pkgconfig:/root/git/grpc/third_party/protobuf
make
./greeter_server &
./greeter_client