Tells the Compiler what extension to expect by default on the names of source files.
>>-.---.--OSEXT--"ext"--------------------->< +-/-+
| ext | The extension. |
Properties:
| Default: | OSEXT"cbl" |
| Phase: | Syntax check |
| $SET: | Any |
If the source filename used in the command or prompt does not have an extension or a trailing period the value in this directive is added.
Specifying a null extension (OSEXT"") indicates that the filename has no extension.