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Re: Clang c++ include path
From: |
Marius Bakke |
Subject: |
Re: Clang c++ include path |
Date: |
Mon, 28 Oct 2019 23:48:58 +0100 |
User-agent: |
Notmuch/0.29.1 (https://notmuchmail.org) Emacs/26.2 (x86_64-pc-linux-gnu) |
Mark H Weaver <address@hidden> writes:
> Hi Ricardo and Mathieu,
>
> Ricardo Wurmus <address@hidden> writes:
>
>>> When running clang on a c++ program, it cannot find c++ std libraries.
>>> That's because, those libraries path are hardcoded inside g++ compiler
>>> and clang cannot find them.
>>
>> Does this patch help?
>
> I'd like to request that fixes to LLVM/Clang be done on another branch
> for now, or at least that the fixed versions are given a different
> variable name. The reason is that IceCat depends on Rust which depends
> on Clang, and there is a chain of *18* Rust compilers that must be built
> before IceCat can be built. On my system, compiling all of those Rust
> compilers requires approximately *90 hours* of continuous compiling.
>
> For the sake of Guix users like myself who do not want to trust the
> build farm, it would be good for it to remain reasonably viable to build
> everything locally.
I agree. The CI system also spends days bootstrapping the Rust compiler
chain. Any user who tries to install IceCat during that time will have
a terrible experience.
I've been keeping "libgit2" updates in 'staging' for that reason, even
though it is below the ~300 rebuild limit.
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