Hi,
And next, what is your problem. You don't tell about the problem your encounter.
I suppose that either configure or compile fail.
There are several ways connecting a unix box to a mssql server.
1 - use commercial product ODBC or TDS
2 - use free unix ODBC solution
3 - use FreeTDS
4 - use sybase open client libs
There is an article on this site that explain a little bit on FreeTDS.
http://www.phpbuilder.com/columns/alberto20000919.php3
If this is not your question, could you tell more.