brew install cabal-install failure

[jlopez]

brew install -v cabal-install output here

Error seems to point at invalid processing directives in file Data/Text.hs downloaded by the cabal bootstrap script:

Data/Text.hs:1053:4:
     error: invalid preprocessing directive
      #-}
       ^

brew doctor reports system is raring to brew.

[jlopez]

I ran into an earlier problem (with brew install lesstif) with Mountain Lion's regexp libraries honoring of LC_CTYPE env var. LANG is by default set to en_US.UTF-8, so regex's now complains with RE error: illegal byte sequence if the source file contains any malformed UTF-8 (e.g. try echo $'\x80' |sed /./p). This can be worked around by setting LC_CTYPE=C.

So I uninstalled ghc, cabal-install, and rm -fr ~/.ghc. Then doing LANG=C brew install cabal-install worked like a charm. Will try again to see if the problem was with the installation of ghc or with cabal-install itself...

[MikeMcQuaid]

We fixed the sed issue in Homebrew itself. Did you brew update recently?

[jlopez]

Oh, good to know the sed issue was fixed. However, I found the problem, it wasn't a LANG issue.

I had done brew update, but only after installing ghc (which installed without errors) and before installing cabal-install. Then I incorrectly attributed the fix to having set LANG, when instead this is what fixed the problem (tested on a fresh machine where the problem reproduced):

brew update          # affc4c8 -> bf4f9aa
brew uninstall ghc
brew install cabal-install

[pyrtsa]

I think this issue should be reconsidered. I had troubles with the same error last weekend, found an interim solution to it (different from the one above; that didn't work for me!), but I'm not sure where this should be fixed: https://gist.github.com/pyrtsa/6213784

What do you think?