On Jan 9, 2014, at 9:08 AM, Ben Langmuir <[email protected]> wrote:

> [moving to cfe-commits]
> 
>> I think that serialization is automatically handled for all options
>> defined in LangOptions.def (ASTWriter::WriteControlBlock).  But
>> because this is a BENIGN_LANGOPT, ASTReader seems to skip checking
>> that they match.
> 
> Hmm, I was worried about changing this option from BENIGN_LANGOPT to LANGOPT 
> because it would affect other code, but now that I look at it more closely it 
> seems to do just what I want.

Yes, this seems the right way to go.

>   Additionally langopt also adds this flag to -module-file-info, which seems 
> like a good thing.  I’ve attached an updated patch that switches to 
> LANGOPT.<module-system-header-comments.patch>

LGTM!

> 
> Ben
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