Apache编译安装后启动报错： error while loading shared libraries: libiconv.so.2

[root@test181 httpd-2.0.63]# /application/apache/bin/apachectl start
/application/apache2.0.63/bin/httpd: error while loading shared libraries: libiconv.so.2: cannot open shared object file: No such file or directory
apache编译安装完成后启动时出现如上错误，加载libiconv.so.2库是发生错误。
解决：
1.在/etc/ld.so.conf中添加一行：/usr/local/lib
echo "/usr/local/lib" >> /etc/ld.conf
2.运行：/sbin/ldconfig ，问题解决。

ld.so.conf和ldconfig是维护系统动态链接库的