MSG
The MSG option controls when the compiler will issue messages for conversions that will be done via a library call.
>>-MSG--(--+-*---+--)------------------------------------------>< '-390-'
- *
- Causes the compiler to issue warning messages for conversions that will be done via a library call if and only if they would be done via a library call on the platform where the code is compiled.
- 390
- Causes the compiler to issue warning messages for conversions that will be done via a library call if and only if they would be done via a library call on 390.