php编译iconv错误解决办法

错误描述：

ext/gd/libgd/gdkanji.o: In function `do_convert':

/home/sh/php-5.2.17/ext/gd/libgd/gdkanji.c:350: undefined reference to `libiconv_open'

/home/sh/php-5.2.17/ext/gd/libgd/gdkanji.c:365: undefined reference to `libiconv'

/home/sh/php-5.2.17/ext/gd/libgd/gdkanji.c:381: undefined reference to `libiconv_close'

ext/iconv/iconv.o: In function `_php_iconv_strlen': 

解决： 

修改Makefile,在 EXTRA_LIBS里面添加 -liconv