[Haskell-cafe] haskell-platform vs macports

Thomas Schilling nominolo at googlemail.com
Thu Mar 22 23:31:44 CET 2012

If you're not otherwise attached to MacPorts, you might want to check
out Homebrew [1].  Its integration with the rest of OS X is generally
more smoothly and I haven't come across any missing packages yet.

[1]: http://mxcl.github.com/homebrew/

On 22 March 2012 16:34, Warren Harris <warrensomebody at gmail.com> wrote:
> I assume that many haskell users out there on macs who are also users of macports, and I bet they've hit this same issue that I've hit numerous times. The problem is that there are 2 incompatible versions of libiconv -- one that ships with the mac, and one that's built with macports and that many macports-compiled libraries depend on.
> Work-arounds have been documented in numerous places (notably here: http://blog.omega-prime.co.uk/?p=96), but if you are trying to link with a macports-compiled libraries that depends on /opt/local/lib/libiconv.2.dylib, your only alternative seems to be building ghc from source in order to avoid the incompatibility. I hit this problem while trying to build a foreign-function interface to libarchive.
> So I built ghc from scratch -- in fact I built the whole haskell-platform. This was relatively painless, and fixed the libiconv problem. However, it brings me to the real point of my message, which is that the version of haskell-platform available via macports is way out of date (2009.2.0.2 http://www.macports.org/ports.php?by=name&substr=haskell-platform).
> I'm wondering whether the haskell-platform team has considered maintaining a macports version of the haskell-platform for us mac users in addition to the binary install that's available now. This would avoid the incompatibilities such as this nagging one with libiconv. Perhaps it's just a matter of maintaining template versions of the port files?
> Warren
> Undefined symbols for architecture x86_64:
>  "_locale_charset", referenced from:
>     _localeEncoding in libHSbase-
>  "_iconv_close", referenced from:
>     _hs_iconv_close in libHSbase-
>    (maybe you meant: _hs_iconv_close)
>  "_iconv", referenced from:
>     _hs_iconv in libHSbase-
>    (maybe you meant: _hs_iconv, _hs_iconv_open , _hs_iconv_close )
>  "_iconv_open", referenced from:
>     _hs_iconv_open in libHSbase-
>    (maybe you meant: _hs_iconv_open)
> ld: symbol(s) not found for architecture x86_64
> collect2: ld returned 1 exit status
> cabal: Error: some packages failed to install:
> Libarchive-0.1 failed during the building phase. The exception was:
> ExitFailure 1
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Push the envelope. Watch it bend.

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