This is from an IBM web page:
This option determines the kind of information you see on your programmable work station when using the IBM CoOperative Development Environment/400 (CODE/400) product to compile your COBOL programs.
The compiler produces source-level error information and source-level debugging information.
You cannot specify *SRCDBG and *LSTDBG together. Specify one or the other.
Note: You can only use the *SRCDBG option if you are using the IBM CODE/400 product to compile your program. If you specify this option but do not have the IBM CODE/400 product installed, the COBOL/400 compiler continues processing, but an error message is issued. For more information on this option, see the CODE/400 Debug Tool and Reference, SC09-1622.
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