On Thu, 2009-10-08 at 18:32 +1100, Manuel M T Chakravarty wrote:
David Menendez:
Is there any consensus about what needs to be done to get a working ghc installation on a Snow Leopard (Mac OS X 10.6) system? The Mac OS X wiki page[1] currently links to a blog post[2] that recommends manually patching /usr/bin/ghc, but I have also seen recommendations that people patch ghci, runhaskell, runghc, and hsc2hs. Is that also recommended? If so, there should probably be an updated how-to on the wiki.
Patching /usr/bin/ghc is sufficient to get a version of GHC that passes the regression tests suite in "fast" mode (the same setting that the validate script uses). If you want to use hsc2hs, you need to patch that, too. I haven't found a need to patch the interpreter, though.
And they almost certainly do want hsc2hs (even if they don't know it) because it's used by all sorts of other libs. The first one people hit is the zlib binding which is used by cabal-install. It appears to compile ok but then fails the version check performed by the zlib C library (eg when someone does cabal update). Duncan