Language Environment (LE) support is enabled using the INITCALL'mfleinit' Compiler directive or the ES_LE370_SUPPORT environment variable. The method used depends on how you intend to use the support.
Enable LE support depending on your application type:
JCL
LE support is enabled by default unless the name of the program you are running begins with 'MF'. In which case, set the
INITCALL"mfleinit" Compiler directive.
CICS
For CICS applications, set the environment variable
ES_LE370_SUPPORT=Y.
Any other method
For any other method, for example, an IMS or standard COBOL program, set the
INITCALL"mfleinit" Compiler directive.