安裝軟件時提示說需要Autoconf 2.64或更高的版本：

[root@wslu-cs wslu]# autoconf  
configure.ac:8: error: Autoconf version 2.64 or higher is required  
configure.ac:8: the top level  
autom4te: /usr/bin/m4 failed with exit status: 63

查詢當前版本：

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

卸載當前版本：

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

安裝最新版本：

[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

查看當前版本：

[root@wslu-cs autoconf-2.69]# /usr/bin/autoconf -V  
autoconf (GNU Autoconf) 2.69  
Copyright (C) 2010 Free Software Foundation, Inc.  
License GPLv3+/Autoconf: GNU GPL version 3 or later  
<http://gnu.org/licenses/gpl.html>, <http://gnu.org/licenses/exceptions.html>  
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已升級到2.69。

CentOS6.5升級autoconf版本，解決”Autoconf version 2.64 or