[Haskell-cafe] PSA: do not install xcode 5 if you are using ghc 7.6
obscaenvs at gmail.com
Tue Sep 17 14:11:36 CEST 2013
Wow, thank you for the heads up!
Le 2013-09-17 05:16, Carter Schonwald a écrit :
> Hey everyone,
> if you are actively using ghc 7.6 on your mac,
> for now please do not install xcode 5.
> It will break your ghc install, because 7.6 doesn't know how to
> correctly use Clang for the CPP work. (ghc head / and thus 7.8 will work
> fine with xcode 5, thanks to some outstanding work by Austin Seipp, 7.6
> does not)
> if you do not need xcode 5, and you're actively using ghc 7.6, stay with
> xcode 4.6 for now.
> if you installed xcode 5 because its there, and now your ghc 7.6 is
> occasionally giving you strange errors involving CPP parse failures on
> fragments like "#-}", you should go to the apple developers website,
> download, and reinstall the xcode 4.6 CLI tools.
> if you need both xcode 5 and ghc in working order *right now, tomorrow*,
> a) live on the wildside: test out using ghc head: also means you could
> play with ghc-ios too!
> b) if you need both in working order now, and stabilish, Darin Morrison
> has a set of mac-homebrew taps that should be you use
> these taps should be regarded as more "official" and "canonical" than
> the formula's that brew provides (the normal brew ones recurrently have
> problems induced by folks who aren't haskell devs)
> c) wait a wee bit till 7.8 lands in all its glory, and have both the
> freshest of xcodes, and the newest of awesome ghcs
> if you don't need xcode 5, having xcode 4.6 CLI tools installed will
> stand you in good stead.
> if you are on os x mavericks, or absolutely need xcode 5 installed, and
> you want a ghc thats already released, use darin's brew
> formulae https://github.com/darinmorrison/homebrew-haskell
> Darin and I plan to spend some time next month preparing an unofficial
> patched version of ghc 7.6 that should play nice with clang / xcode 5,
> though at such a time ghc 7.8 will be in RC status at the very least.
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