RFR: 8255914: [AOT] Using AOT flag should give warning when AOT is not included in build

[David Holmes]

On 5/11/2020 3:06 pm, Vladimir Kozlov wrote:
> On Thu, 5 Nov 2020 04:32:30 GMT, David Holmes <dholmes at openjdk.org> wrote:
> 
>> This all looks fine, but can you simply replace UNSUPPORTED_OPTION_NULL with UNSUPPORTED_OPTION_INIT and update the two existing usages, so that we don't have three versions of the macro?
> 
> Okay. I agree with that.
> 
> But, please, note it will change current VM behavior for these flags.
> UNSUPPORTED_OPTION_INIT macro unconditionally set flag's value without checking current value and it gives warning regardless value specified on command line.
> UNSUPPORTED_OPTION_NULL macro does not give warning if flag's value specified on command line is NULL.

Sorry I missed that subtlety in how the macros are expressed. Please 
leave as is.

Thanks,
David

> -------------
> 
> PR: https://git.openjdk.java.net/jdk/pull/1071
>