Re: suggestion for Merging LLVM

[Jeff Garzik <jeff@garzik.org>]

On 11/25/2011 03:05 AM, Christopher Li wrote:
> On Thu, Nov 24, 2011 at 10:43 PM, Pekka Enberg<penberg@kernel.org>  wrote:
>> I wasn't able to find out any C API for that and assume it was only
>> possible with the C++ API. That said, I'd also be happy to use
>> something else to be compatible with older versions if there is one.
>> Any LLVM experts on the list?
>
> If it just need to use the C++ API, we can compile a bridge c++ file
> to export the missing C++ API to C file. It is actually pretty common praticse
> if you play with LLVM internal a lot, some API just don't exist in C yet.
> We are already using g++ to link llvm, one more c++ file could not hurt.
> If we need some C++ only API later, we can add it there as well.
>
> What do you say?
>
>> LLVM 3.0 is going to be released "real soon now" so I don't think it's
>> a problem in practice. We'd need to add a version check, though so we
>> don't break build on machines that have older LLVM installed.
>
> Still, it will take a while for the distribution to update to the new version.

Pulling in bits of LLVM itself into sparse, to make older versions work, 
seems like a mess of work and maintenance without a driving need.   Just 
note that 3.0 is required, and things will sort themselves out in time.

	Jeff