Julian Ospald authored Oct 21, 2025 and Marge Bot committed Jan 14, 2026

Previously, we would build libffi via hadrian
and bundle it manually with the GHC bindist.

This now moves all that logic out of hadrian
and allows us to have a clean Haskell package
to build and link against and ship it without
extra logic.

This patch still retains the ability to link
against a system libffi.

The main reason of bundling libffi was that on
some platforms (e.g. FreeBSD and Mac), system libffi
is not visible to the C toolchain by default,
so users would require settings in e.g. cabal
to be able to compile anything.

This adds the submodule libffi-clib to the repository.