Replying to [comment:10 george.colpitts]:
Actually, no. This patch fixes problems that occur when building on 10.9 regardless of whether GCC or clang (Xcode 5) are used. In other words, it's not related to Xcode 5 at all.
Building GHC on 10.8 with Xcode 5 does not require this patch. I've already tested this to make sure.
You can see how the patch is applied with the homebrew formula I
#8139: ghc 7.6.3 and ghc HEAD fails to build on OS X 10.9 -------------------------------------+------------------------------------- Reporter: darinmorrison | Owner: darinmorrison Type: bug | Status: new Priority: highest | Milestone: 7.8.1 Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: MacOS X | Architecture: x86_64 (amd64) Type of failure: Building GHC | Difficulty: Easy (less than 1 failed | hour) Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------- Comment (by george.colpitts): Thanks, sounds like we are all set. Sorry for any confusion I may caused. "The problem" is a bit ambiguous. I was referring to the first of the 3 issues mentioned: gcc is no longer available and the clang compatibility patches of http://ghc.haskell.org/trac/ghc/ticket/7678 are not included in 7.6.3. After downloading Xcode 5 onto 10.8 I was unable to install the random-fu package getting errors that seemed the same as those mentioned at https://github.com/mxcl/homebrew/issues/20546, particularly those of dhess "GHC uses the system's C preprocessor, and Clang can't parse CPP directives that split lines. A similar problem occurs when compiling certain Haskell libraries (e.g., cereal) on 10.8 using the Xcode 5 DP and Homebrew-installed GHC." Replying to [comment:11 darinmorrison]: maintain here:
haskell/blob/master/Formula/ghc.rb -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8139#comment:13 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler