Apache 启动提示undefined symbol: libiconv_open 有大用

我的报错如下 

12月 25 16:26:48 LX-NB-213PGXB.bbbb.com.cn httpd[2254]: Starting httpd: httpd: Syntax error on line 155 of /www/wdlinux/httpd-2.4.41/conf/httpd.conf: Cannot load modules/libphp5.so into server: /www/wdlinux/httpd-2.4.41/modules/libphp5.so: undefined symbol: libiconv_open

昨晚整合apache和php是实在找不到解决办法，Google 百度都转一圈了，总算在百度找回来解决方法，记录一下，这个问题是在apache启动时出现的：

./apachectl  start

提示下面的错误：

httpd: Syntax error on line 57 of /usr/local/apache2/conf/httpd.conf: Cannot load /usr/local/apache2/modules/libphp5.so into server: /usr/local/apache2/modules/libphp5.so: undefined symbol: libiconv_open

解决方法：

重新编译php，configura完成后在编译时加入以下参数：

make ZEND_EXTRA_LIBS='-liconv'