办法1：

wget http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.13.1.tar.gz
tar -zxvf libiconv-1.13.1.tar.gz cd libiconv- 1.13.1 ./configure
make
make install

办法2：

1. wget http://down.wdlinux.cn/in/iconv_ins.sh
2. sh iconv_ins.sh

[ext/iconv/iconv.lo] Error 1