autoconf
configure.ac:8: error: Autoconf version 2.67 or higher is required
configure.ac:8: the top level
autom4te: /usr/bin/m4 failed with exit status: 63

查询当前版本

rpm -qf /usr/bin/autoconf
autoconf-2.63-5.1.el6.noarch

卸载当前版本

rpm -e --nodeps autoconf-2.63

安装最新版本

wget ftp://ftp.gnu.org/gnu/autoconf/autoconf-2.69.tar.gz
tar zxvf autoconf-2.69.tar.gz
cd autoconf-2.69
./configure --prefix=/usr/
make && make install

查看当前版本

/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已升级到2.69