FYI: Opened GHC PRs to add missing include of sys/types.h

[Viktor Dukhovni]

Once

    https://gitlab.haskell.org/ghc/ghc/merge_requests/2132
    https://gitlab.haskell.org/ghc/ghc/merge_requests/2133
    https://gitlab.haskell.org/ghc/ghc/merge_requests/2134

are merged, there will no longer be a need to apply a patch to
libraries/base/dist-install/build/System/Environment/ExecutablePath.hsc
to create "bindists" or any future ports for GHC 8.8.2 and beyond.

-- 
	Viktor.

P.S.

There isn't yet a GHC 8.8.x port, so likely by the time that port
appears, the patch will not be needed.  In the meantime, as of stack
nightly-2019-11-10, my project now builds with GHC 8.8.1.  Thanks
again for making the bindists available in:

    https://github.com/commercialhaskell/stackage-content/pull/69