Bug#1125455: ghc: enable ld override for loong64

[John Paul Adrian Glaubitz]

Hi fanpeng,

Please always CC debian-loongarch at lists.debian.org when reporting loong64 bugs!

On Wed, 2026-01-14 at 06:32 +0000, fanpeng wrote:
> On Loong64, NCG is currently not supported in 9.10, while Llvm backend
> incompatible with tables-next-to-code, which will generate PLT for non-
> function symbols.
> 
> Only lld can correctly link it.
> Specifics can be seen: https://gitlab.haskell.org/ghc/ghc/-/issues/25531

Thanks for your patch! For the initial bootstrap, I have switched ghc on loong64
to use the unregisterised backend now [1]. Once we have successfully bootstrapped
ghc on loong64, we can integrate your patch.

Thanks,
Adrian

> [1] https://salsa.debian.org/haskell-team/DHG_packages/-/commit/90816e0d313eceec469552fd4a42846bf30642ea

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