Redis need tcl 8.5 or newer

scratkong@ubuntu:~/workspace/redis2.6.13/src$ make test
You need tcl 8.5 or newer in order to run the Redis test
make: *** [test] Error 1

解決方案：

    wget http://downloads.sourceforge.net/tcl/tcl8.6.1-src.tar.gz
    sudo tar xzvf tcl8.6.1-src.tar.gz  -C /usr/local/
    cd  /usr/local/tcl8.6.1/unix/
    sudo ./configure
    sudo make
    sudo make install
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原文：https://blog.csdn.net/luyee2010/article/details/18766911