> >But already ghc-9.4 does not build on aarch64. This is a serious > >regression, and I think we cannot merge like this. > > ... > > >Longer term, what would it take to build newer haskell versions > >on aarch64? > > I will investigate that tommorrow and hope to get it fixed in a few days.
The issue was that the bootstrap chain for new ghc versions is
... -> 9.0 -> 9.4 -> 9.8 -> 9.10
and aarch64 support was bootstrapped by building 9.2 with a binary,
which was then skipped with the newer versions. I copied the relevant
packaging code from 9.2 to 9.0 and it seems promising. See
https://codeberg.org/guix/guix/pulls/9027
- Saku
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