安装软件时提示说需要Autoconf 2.64或更高的版本: # autoconf configure.ac:: error: Autoconf version 2.64 or higher is required configure.ac:: the top level autom4te: /usr/bin/m4 failed with exit status: 查询当前版本: # rpm -qf /usr/bin/autoconf autoconf-2.63-5.1.el6.noarch 卸