编译最新的2.0.35版本，用默认的./configure编译
当make的时候，出现以下错误
configure.ac:64:error:possiblyundefinedmacro:AM_ICONV
Ifthistokenandothersarelegitimate,pleaseusem4_pattern_allow.
SeetheAutoconfdocumentation.
make:***[configure]Error1
解决办法，编译加m4_pattern_allow参数
即：./configure--enable-m4_pattern_allow
便能顺利编译安装