The build for ghc-cryptonite failed in the mass rebuild [1] and a
later rebuild by me [2], but only on s390x. The failure appears to be
LTO related. This doesn't appear to affect many other Haskell
packages. (I've found one seemingly-related failure in
ghc-haskell-src-exts [3].) Since it's Haskell, I'm using the standard
macros that should pass consistent flags, etc., so I'm not sure what
more information I can provide.
What happens is that ld.gold warns about mixed LTO/non-LTO:
[2] https://koji.fedoraproject.org/koji/taskinfo?taskID=48408236