https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #30 from Jens Petersen petersen@redhat.com --- Great seems like it is working better.
You could try a simple helloworld:
$ cat > hello.hs main = putStrLn "hi!" $ ghc hello.hs $ ./hello
If it is looks good and doesn't change the library ABI hashes then I guess this could be made a Fedora Update.
But I am wondering on the impact of this bug to rest of the Haskell packages. Maybe everything needs to be rebuilt to work without Neon, which sounds like for rawhide?