source lines not available for module path_name

    Facility: DEBUG, VMS Debugger

    Explanation: The source lines from module CZ cannot be displayed
    or searched because there is no source line information in the
    symbol table for that module. Either the compiler is not able to
    generate such information or the /DEBUG qualifier was not used on
    the compilation or link command.

    User Action: If the language in question supports source line
    display, recompile and relink with the /DEBUG qualifier. If the
    language does not support source line display, source lines will
    not be available to the debugger for modules written in that
    language.