[libcxx-dev] Requiring monorepo layout when building libc++ and libc++abi

[Eric Christopher via libcxx-dev]

Agreed. Let's talk about any code sharing ahead of time though if you
wouldn't mind :)

On Wed, Mar 11, 2020, 10:50 AM James Y Knight via libcxx-dev <
libcxx-dev at lists.llvm.org> wrote:

> +1. Any simplifications and cleanups of the buildsystem SGTM.
>
> On Wed, Mar 11, 2020 at 1:28 PM Louis Dionne via libcxx-dev <
> libcxx-dev at lists.llvm.org> wrote:
>
>> Hey folks,
>>
>> Now that the monorepo is the standard, would everybody be fine with
>> requiring both libc++ and libc++abi sources to be accessible in a
>> monorepo-like layout when building either of them? In other words, in order
>> to build either libc++ or libc++abi, we would require the following layout:
>>
>>    <root>/libcxx
>>    <root>/libcxxabi
>>
>> I suggest not requiring the rest of the monorepo, simply because it
>> wouldn't be useful, and I know of at least one use case that would break.
>>
>> The benefit of adopting this assumption is that all the search for libcxx
>> and libcxxabi sources can be removed, simplifying the build quite a bit.
>> Eventually, we can even start sharing stuff between the two sub-projects.
>> If we go forward with this, I'll be happy to make the clean ups I mention.
>>
>> Cheers,
>> Louis
>>
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