Commit Graph

2 Commits

Author SHA1 Message Date
sternenseemann
45aae5c2fe haskell.compiler.ghc9*: work around output cycles on aarch64-darwin
Due to link time dead code elimination not working on aarch64-darwin,
some unused store path references in Paths_* modules are retained. This
causes reference cycles when a separate `bin` output is used.

To prevent this, add a patch to Cabal as shipped by GHC which infers
based on the installation layout (which is influenced by
enableSeparateBinOutput, enableSeparateDataOutput etc. in a Nix build)
which references can be retained without causing a reference cycle. This
ensures that packages that were fine with a bin output will also work on
aarch64-darwin. Packages that cause a reference cycle anyways (by
actually using references that do cause one) fail due to a missing
symbol – here we are trading the overall benefit for a more confusing
error message.

For details, refer to the explanation comment in the patch.
2023-03-11 12:22:48 +01:00
sternenseemann
81d5cb1550 haskell.compiler.ghc927: init at 9.2.7
https://www.haskell.org/ghc/blog/20230227-ghc-9.2.7-released.html
2023-03-01 00:39:01 +01:00