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安装软件时提示说需要Autoconf 2.64或更高的版本：

[root@wslu-cs wslu]# autoconfconfigure.ac:8: error: Autoconf version 2.64 or higher is requiredconfigure.ac:8: the top levelautom4te: /usr/bin/m4 failed with exit status: 63

[root@wslu-cs wslu]# rpm -qf /usr/bin/autoconfautoconf-2.63-5.1.el6.noarch

[root@wslu-cs wslu]# rpm -e --nodeps autoconf-2.63

[root@wslu-cs wslu]# wget ftp://ftp.gnu.org/gnu/autoconf/autoconf-2.69.tar.gz[root@wslu-cs wslu]# tar zxvf autoconf-2.69.tar.gz[root@wslu-cs wslu]# cd autoconf-2.69[root@wslu-cs wslu]# ./configure --prefix=/usr/[root@wslu-cs wslu]# make && make install

[root@wslu-cs autoconf-2.69]# /usr/bin/autoconf -Vautoconf (GNU Autoconf) 2.69Copyright (C) 2010 Free Software Foundation, Inc.License GPLv3+/Autoconf: GNU GPL version 3 or later
   
    , 
    
     This is free software: you are free to change and redistribute it.There is NO WARRANTY, to the extent permitted by law.Written by David J. MacKenzie and Akim Demaille.
    
   

至此，autoconf已升级到2.69。

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