On Tue, Jun 9, 2015 at 11:30 PM, Mark Lentczner <mark.lentcz...@gmail.com> wrote:
> A known pitfall for all is that the OS X native installer package, and > MacPorts build with different install paths, and different library > assumptions. I don't know if Homebrew does it yet differently or is the > same as MacPorts. > That's the least of the issues. MacPorts and Homebrew, for compatibility with the largely Linux-based packages they distribute, use GNU versions of libiconv and libreadline instead of Apple's BSD-sourced libraries (Apple's libreadline is BSD's libedit); since Apple named their libraries the same as the GNU ones, this leads to severe incompatibilities. It's definitely noticeable with ghc and Haskell libraries because libiconv is used by ghc for locale support. You simply cannot mix libraries between any of the three, or Fink or any other third party packagers. (Homebrew used to allow it, before discovering the insane compatibility and support issues caused by Apple's handling of libiconv and libreadline. They have adopted the same stance as MacPorts since then.) For paths, the upstream ghc package uses /usr/bin and /usr/lib; MacPorts uses /opt/local/bin and /opt/local/lib; Homebrew uses /usr/local/bin and /usr/local/lib. Not that this is enormously relevant (or, to the extent that it is, it's a slight amelioration) because of the above library incompatibilities. -- brandon s allbery kf8nh sine nomine associates allber...@gmail.com ballb...@sinenomine.net unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net
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