Support Arch Linux fully

[mietek]

The setup script already supports Arch Linux. Everything is expected to work, except installing native OS packages declared with HALCYON_SANDBOX_EXTRA_OS_PACKAGES or HALCYON_EXTRA_OS_PACKAGES.

Be aware pacman --sync --refresh may break things.

Depends on mietek/bashmenot#3.

[edofic]

I have some issues installing GHC 7.10 (rc3) with Halcyon on Arch Linux. I can use 7.8.4 without problems as well as 7.10 (rc3) on ubuntu 14.

As far as I understand there is a problem building cabal from source as prepackaged cabal 1.22.0.0 is not available for arch.

Here is a log of a failed halcyon install

[mietek]

@edofic: Indeed, a Cabal 1.22.0.0 directory archive for Arch Linux isn’t available in public storage right now. This will be fixed soon.

The real problem is that cabal-install cannot bootstrap with GHC 7.10.1-rc3 (haskell/cabal#2461), and the fix isn’t included in any cabal-install version released so far.

As a workaround, bootstrap Cabal 1.22.0.0 with GHC 7.8.4:

$ halcyon install --ghc-version=7.8.4 --cabal-version=1.22.0.0

With private storage set up, Halcyon will automatically archive and upload the resulting Cabal directory for later use, which means you won’t have to bootstrap it again in the future, should you decide to switch to another Cabal version for a while.

[mietek]

Arch Linux archives of Cabal 1.20.0.3, 1.22.0.0, and all supported GHC versions are now available in public storage.

CC @pbrisbin

[mietek]

With 8004ece, pacman --sync --refresh is now gone from the setup script.

[mietek]

I’m sorry. This project is no longer maintained.