There are three methods for upgrading applications that use an assembler
driver to call COBOL subroutines:
- Convert the assembler driver to a Language Environment-conforming
assembler driver.
- Modify the assembler driver to set up the Language Environment environment.
- Use the RTEREUS runtime option if the assembler driver cannot be modified.
These methods are described in the sections below. In all cases, you upgrade
the COBOL subroutines in the same way as described in the other COBOL conversion
scenarios.