求助：在freebsd下用php连接sqlserver 2000

tenhlf

系统：freebsd4.9
apache2.48         /usr/lcoal/apache2
php4.3.4

在http://www.freetds.org/上没有下载到源代码，只好到ftp上下载了freetds-msdblib-0.62.3.tgz，解压到/usr/local/freetds

编译php #./configure ................ --with-mssql=/usr/local/freetds
make  时报错！！！

/usr/libexec/elf/ld: warning: libiconv.so.3, needed by /usr/local/freetds/lib/li
bsybdb.so, not found (try using -rpath or -rpath-link)
/usr/local/freetds/lib/libsybdb.so: undefined reference to `libiconv_open'
/usr/local/freetds/lib/libsybdb.so: undefined reference to `libiconv_close'
/usr/local/freetds/lib/libsybdb.so: undefined reference to `libiconv'
*** Error code 1

Stop in /ftp/incoming/soft/php-4.3.4.


请问，应该如何安装，才能实现在freebsd下用php连接sqlserver 2000