CentOS 6.6自带的是Python 2.6.6，而编译llvm需要Python 2.7以上。 checking for python... /usr/bin/pythonchecking for python >= 2.7... not foundconfigure: error: found python 2.6.6 (/usr/bin/python); required >= 2.7 yum中最新的也是Python 2.6.6，只能下载Python 2.7.9的源代码自己编译安装。 操作步骤如下： 1）安装devtoolset yum groupinstall "Development tools" 2）安装编译Python需要的包包 yum -y install zlib-develyum -y install bzip2-develyum -y install openssl-develyum -y install ncurses-develyum -y install sqlite-devel 3）下载并解压Python 2.7.9的源代码 ftp上传安装包tar zxvf Python-2.7.9.tar.xzcd Python-2.7.9 4）编译与安装Python 2.7.9 ./configure --prefix=/usr/localmake && make altinstall 5）将python命令指向Python 2.7.9 ln -s /usr/local/bin/python2.7 /usr/local/bin/python 6）检查Python版本 shsh-4.1# python -VPython 2.7.9
