执行./configure时出现下面错误： 
checking for GNU M4 that supports accurate traces... configure: error: no acceptable m4 could be found in $PATH.
GNU M4 1.4.6 or later is required; 1.4.16 or newer is recommended.

原因是需要安装M4
打开m4下载地址：http://ftp.gnu.org/gnu/m4/
我这里下载的是最新版本http://ftp.gnu.org/gnu/m4/m4-1.4.18.tar.gz

[root@bogon liuzhen]# tar -zxvf m4-1.4.18.tar.gz
[root@bogon liuzhen]# cd m4-1.4.18
[root@bogon m4-1.4.18]# ./configure
[root@bogon m4-1.4.18]# make
[root@bogon m4-1.4.18]# make install