Rational Developer for System z
Enterprise COBOL for z/OS, Version 4.1, Compiler and Runtime Migration Guide


Upgrading IBM COBOL source programs

This chapter describes the differences between the IBM COBOL language and the Enterprise COBOL language. The information in this chapter will help you determine which IBM COBOL programs need source modifications in order to compile with Enterprise COBOL. For example, IBM COBOL programs compiled with the CMPR2 option require source modification because Enterprise COBOL no longer supports the CMPR2/NOCMPR2 compiler option.

This chapter contains information on the following items that you will need to consider when upgrading IBM COBOL source programs to Enterprise COBOL:

For information about upgrading programs compiled with the CMPR2 compiler option, see Migrating from CMPR2 to NOCMPR2.

For more information about migrating from the separate CICS translator to the integrated CICS translator, see Migrating from the separate CICS translator to the integrated translator


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