Hi everyone, Last night I spoke to two very helpful folks (Stephen and Luke) on the matter of ghc-ios not building for me. I haven't reached a solution yet and thought I would post my issue. Stephen thought maybe there was a version mismatch with Cabal, but Luke didn't seem to have any problems building.. Any thoughts on what is going wrong here? I'm following the directions EXPLICITLY from: https://github.com/ghc-ios/ghc/wiki I seem to have done the git branch selection properly: macbook-air:ghc rcl$ cd libraries/Cabal/Cabal/ macbook-air:Cabal rcl$ git branch * ios I'm using: macbook-air:ghc rcl$ ghc --version The Glorious Glasgow Haskell Compilation System, version 7.4.1 macbook-air:ghc rcl$ llc --version Low Level Virtual Machine (http://llvm.org/): llvm version 3.0 Optimized build. Built Nov 25 2012 (23:35:46). Host: x86_64-apple-darwin12.2.0 Host CPU: i686 Registered Targets: alpha - Alpha [experimental] arm - ARM … MacBook-Air:~ rcl$ uname -a Darwin MacBook-Air.local 12.2.0 Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64 x86_64 Mac OS X 10.8.2 Things I've tried since starting: At first, I had LLVM 3.1 so I switched. Then I had the latest GHC 'Haskell Package' which was 7.4.2, the wiki recommends 7.4.2 so I installed this older version from Haskell Package 2012.2.0.0 64bit. Then I thought perhaps I need to install 32 bit Haskell Package; I did this (7.4.1) and it also fails. When compiling ghc, Cabal fails: [68 of 68] Compiling Main ( utils/ghc-cabal/Main.hs, bootstrapping/Main.o ) utils/ghc-cabal/Main.hs:287:67: Couldn't match expected type `Data.ByteString.Lazy.Internal.ByteString' with actual type `String' In the return type of a call of `toUTF8' In the second argument of `writeFileAtomic', namely `(toUTF8 content)' In a stmt of a 'do' block: writeFileAtomic (distdir "inplace-pkg-config") (toUTF8 content) make[1]: *** [utils/ghc-cabal/dist/build/tmp/ghc-cabal] Error 1 The build starts off like this: "/usr/bin/ghc" -H64m -O2 --make utils/ghc-cabal/Main.hs -o utils/ghc-cabal/dist/build/tmp/ghc-cabal \ -no-user-package-conf \ -Wall \ -DCABAL_VERSION=1,17,0 \ -odir bootstrapping \ -hidir bootstrapping \ -ilibraries/Cabal/Cabal \ -ilibraries/filepath \ -ilibraries/hpc \