Re: GHC HEAD now needs extra tools to build libffi?

Sylvain Henry writes:

I don't know if it helps, but upgrading my ArchLinux installation yesterday broke my builds because of linker issues with stack. I now have to specify "ghc-build: nopie" in stack.yaml file. (cf https://github.com/commercialhaskell/stack/issues/2712)

Could your error be related to PIE too?

Note that this (Trac #12759) was worked around in GHC 8.0.2 via a autoconf check. Consequently, upgrading the your C toolchain may require that you reinstall GHC. Cheers, - Ben