Setting Environment Variables

You must properly define all compiler-specific and database-specific environment variables and system settings before building the DB Interface Module libraries.

Table 30 lists an environment variable for each of the DB Interface Module access libraries and describes the typical settings required. The rest of this section provides operating system-specific instructions for setting the variables.

Table 30. Environment variables
Database	Variable Name	Notes
Microsoft SQL Server	n/a	For the SQL Server Native Client driver, RCB includes a field to specify the path to the driver installation directory. For the SQL Server driver, the compiler's default settings take care of this.
MySQL	n/a	RCB includes a field to specify the path to the MySQL installation.
DB2 CLI	`DB2DIR`	Set the variable to the path in which DB2 CLI is installed.
ODBC	`ODBC`	UNIX: Set the variable to the path in which the ODBC library and header files are installed. Microsoft: Do not set this variable. Your compiler’s default settings take care of this for you.
Oracle OCI	`ORACLE_HOME`	Set the variable to the path in which Oracle is installed.
PostgreSQL	n/a	RCB includes a field to specify the path to the PostgreSQL installation.
Sybase	`SYBASE`	Set the variable to the path in which Sybase Open Client is installed.
Sybase	`SYBASE_OCS`	`OCS-15_0`

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