Yet more OPTLINK woes

[Don]

div0 wrote:
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> Simen kjaeraas wrote:
>> Daniel Keep <daniel.keep.lists at gmail.com> wrote:
>>
>>> That's right, it's time for everyone's favourite [1] game: guess why
>>> OPTLINK's not working! [2]
>> [...]
>>> Does anyone have any idea, any idea at all, on what could be causing
>>> this?  I've tried everything myself and several others on #d could
>>> think of.
>> <channeling src="Walter">Please reduce this to a 1-line test case.
>> </channeling>
>>
>> You know for sure OPTLINK is being run?
>> If so, that wisdom of Walter's is my best idea. Try and remove stuff
>> until it starts working, then remove other stuff until there's nothing
>> left to remove. I know, it's boring and should be unnecessary. Still,
>> sometimes it's the only thing that works.
>>
> 
> Yah, it might not actually be OPTLINK for a change.
> 
> I've had problems before with DMD silently exiting without an error
> message and with error success and leaving behind a corrupt .obj.
>

Yes, it sounds to me like a DMD stack overflow. I've seen that behaviour 
frequently, and optlink was never to blame. CTFE recursion is the only 
reported unfixed bug that does that -- but I've fixed half a dozen of 
them in the last year, so there may be more.