x86-64 unknown-linux

Hi devs, I would like to download GHC 8 binaries for Arch Linux on an x86-64 architecture. I assume I'm looking for an unknown-linux build, and it looks like what I want is a Tier 1 platform, according to https://ghc.haskell.org/trac/ghc/wiki/Platforms Yet I don't see this release in https://downloads.haskell.org/~ghc/8.0.1/ Can you help? Thanks! Richard