[Haskell-cafe] GHC 6.12 on OS X 10.5

Jinjing Wang nfjinjing at gmail.com
Mon Dec 21 16:51:23 EST 2009

not sure if this helps, but try:

# ports share lib export
export CPATH=~/local/include
export LIBRARY_PATH=~/local/lib
export LD_LIBRARY_PATH=~/local/lib
export DYLD_LIBRARY_PATH=~/local/lib

replace ~/local/ with your ports path

On Tue, Dec 22, 2009 at 5:43 AM, Tom Tobin <korpios at korpios.com> wrote:
> On Mon, Dec 21, 2009 at 1:38 PM, Tom Tobin <korpios at korpios.com> wrote:
>> On Mon, Dec 21, 2009 at 4:32 AM, Conor McBride
>> <conor at strictlypositive.org> wrote:
>>> I thought I'd record my upgrade exerience (so far) in case anyone else
>>> finds it useful, and (more selfishly) in case anyone has some helpful
>>> advice. Summary of situation
>> You just described what I went through last night with GHC 6.12 before
>> giving up and going to bed, except that I'm on Snow Leopard (OS X
>> 10.6).  I got the "undefined symbols" errors when trying to compile
>> cpphs, which came up at some point in the build process when trying to
>> install Happstack via cabal 0.8.0.  I was wondering if if something
>> was getting confused between my MacPorts libraries and OS X, and your
>> experience certainly makes it seem that way; I have the MacPorts paths
>> set up in my .cabal/config file as extra-include-dirs and
>> extra-lib-dirs, otherwise I can't get particular libraries (e.g.,
>> pcre-lite) to compile.
>> I'm going to wipe my .cabal and .ghc and try from scratch to build as
>> much as possible without the MacPorts paths, only re-adding them for
>> single builds as necessary; I'll write back after I see how that goes.
> This time, after wiping .ghc and .cabal, I immediately did "cabal
> update" followed by "cabal install happstack" (without going and
> changing the extra-include-* settings in .cabal/config to point at the
> MacPorts dirs).  cpphs compiled fine this time, but I got a failure
> due to haskell-src-exts not building; haskell-src-exts in turn
> complained that happy wasn't installed.  I went and installed happy,
> then haskell-src-exts (which installed v1.3.4), and then did "cabal
> install happstack" again which installed haskell-src-exts v1.0.1 (I
> guess GHC understands how to deal with two different installed library
> versions?).
> This time the install died on HJScript:
> **********
> [ 2 of 26] Compiling HJScript.Monad   ( src/HJScript/Monad.hs,
> dist/build/HJScript/Monad.o )
> src/HJScript/Monad.hs:51:10:
>    A pattern match on a GADT requires -XGADTs
>    In the pattern: EmptyBlock
>    In the definition of `mappend': mappend EmptyBlock b = b
>    In the instance declaration for `Monoid (Block ())'
> cabal: Error: some packages failed to install:
> HJScript-0.4.5 failed during the building phase. The exception was:
> ExitFailure 1
> **********
> I have no idea what to do next, so I'll probably bring this particular
> issue up on the Happstack list next.
> My questions at this point:
> 1) The original problem definitely looks like it's related to library
> confusion between the system libs and the MacPorts libs.  Is there any
> way of sanely handling this when I need a library that's available
> through MacPorts but not OS X's system libs?  (MacPorts' insistence on
> maintaining an entirely separate library stack from the OS X system
> libraries is starting to make me crazy.  ::sigh::)
> 2) Regarding haskell-src-exts: why wasn't happy wasn't pulled into the
> dependency graph in the first place?
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