CentOS 6.6自帶的是Python 2.6.6,而編譯llvm須要Python 2.7以上。html
checking for python... /usr/bin/python checking for python >= 2.7... not found configure: error: found python 2.6.6 (/usr/bin/python); required >= 2.7
yum中最新的也是Python 2.6.6,只能下載Python 2.7.9的源代碼本身編譯安裝。python
操做步驟以下:sql
1)安裝devtoolsetpython2.7
yum groupinstall "Development tools"
2)安裝編譯Python須要的包包ui
yum install zlib-devel yum install bzip2-devel yum install openssl-devel yum install ncurses-devel yum install sqlite-devel
3)下載並解壓Python 2.7.9的源代碼spa
cd /opt wget --no-check-certificate https://www.python.org/ftp/python/2.7.9/Python-2.7.9.tar.xz tar xf Python-2.7.9.tar.xz cd Python-2.7.9
4)編譯與安裝Python 2.7.9code
./configure --prefix=/usr/local make && make altinstall
5)將python命令指向Python 2.7.9sqlite
ln -s /usr/local/bin/python2.7 /usr/local/bin/python
6)檢查Python版本htm
sh sh-4.1# python -V Python 2.7.9