Before you use the Open Client sample programs:
Set the SYBASE environment variable to the path of the Sybase release directory (if it has not already been set).
Set the SYBASE_OCS environment variable to the home directory of Open Client and Open Server products. For example, OCS-15_0 is the home directory of 15.0 version of the Open Client and Open Server products.
Set the DSQUERY environment variable to the server name (server_name) to which you want to connect.
Use make in conjunction with the provided makefile to produce a sample executable named example_name.
For detailed information regarding configuration of your environment and variables, refer to the Open Client and Open Server Configuration Guide for Microsoft Windows.