参见FastDFS源码目录下的文件INSTALL。摘录如下：
#step 1. download FastDFS source package and unpack it
tar xzf FastDFS_v1.x.tar.gz
#for example:
tar xzf FastDFS_v1.18.tar.gz
#step 2. enter the FastDFS dir
cd FastDFS
#step 3. make all
./make.sh
#step 4. make install
./make.sh install
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