Bug#1077068: llvm-toolchain-17 FTBFS with gcc-14 on arm64

[Gianfranco Costamagna]

On Thu, 25 Jul 2024 20:52:12 +0200 NoisyCoil <noisycoil at tutanota.com> wrote:
> Package: llvm-toolchain-17
> Version: 1:17.0.6-12
> Severity: important
> Tags: ftbfs upstream
> X-Debbugs-Cc: noisycoil at tutanota.com
> 
> Dear Maintainer,
> 
> llvm-toolchain-17 fails to build from source with gcc-14 on arm64 due to this upstream bug:
> https://github.com/llvm/llvm-project/issues/78691. A fix was merged to v18
> (https://github.com/llvm/llvm-project/pull/78704), but AFAICS the patch was not backported
> to v17. Since the bug more widely affects libclang, I expect other packages to FTBFS with
> gcc-14 + llvm-17 on arm64. One such package is mesa (this is how I came across this bug).
> 
> Best,
> 
> NoisyCoil
> 
> P.S.: I checked that llvm-16 still builds with gcc-14.
> 
> 

Hello,

I did stick with gcc-13 for llvm-17, cherry-picking looks really complicate on that branch...

G.
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