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Re: Make LTO Patch for Job Server Thread Detection Agnostic


On Fri, Feb 28 2020, Nathan Sidwell wrote:
> On 2/27/20 12:04 PM, Paul Smith wrote:
>> On Thu, 2020-02-27 at 16:58 +0000, Jonathan Wakely wrote:
>>>> That's a problem then as were assuming a user's build system for this
>>>> to work. I mean for now its fine but in the future wouldn't it de a
>>>> good ideal to not assume this?
>>> It works fine for everybody. There's just an optimisation for people
>>> with a GNU make jobserver available. I don't see a problem.
>>> If somebody wants to add an optimisation for their preferred build
>>> system they can propose a patch.
>> And/or they can suggest to other build systems that they also add support
>> for this service.
>> I'm not aware of any service like this which is supported by all build
>> tools, so it's not like we're choosing this over something else that's more
>> widely available.  Actually as far as I know other build tools don't
>> provide anything like it, portable or not.
> Recently Honza, me and others discussed LTO's interaction with build 
> systems, and that perhaps the module mapper could be generalized for 
> other purposes.  (Yes, still need to resurrect my Make PoC)

see also the "Create a general jobserver client/server library" library
suggested GSoC project at


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