On 18/05/2010 17:48, John Lato wrote:
From: Simon Marlow<marlo...@gmail.com>
But currently there is one problem with "GhcShared=YES": with this
option, the stage-2 compiler gets linked dynamically but the
corresponding inplace shell wrapper does not set (DY)LD_LIBRARY_PATH,
thus ./inplace/bin/ghc-stage2 doesn't run at all. I could work around
this by manually symlinking all the dynamic libraries to ./inplace/lib
and setting (DY)LD_LIBRARY_PATH to there, but obvisouly there should
be a solution better than this.
On Linux we link the binary using -rpath (I know OS X doesn't have
-rpath). This is another issue we need to resolve before we can switch
to a dynamically-linked GHCi.
Basically there's a fair bit to do to make a dynamic GHCi a reality, and
before we can do anything there are some tricky decisions to make.
When you say OSX doesn't have -rpath, do you mean there's some problem
with using -rpath on OSX? I have code that links to a 3rd-party
library (libcudart.dylib) at runtime and it seems to use -rpath fine.
This is with ghc-6.12.1.
It was my understanding that OS X doesn't have -rpath from reading
http://hackage.haskell.org/trac/ghc/wiki/SharedLibraries/Management
and from what I remember Mac people saying in the past. Or maybe they
were just saying that -rpath is not the right thing on OS X because
libraries themselves have paths baked in.
Cheers,
Simon
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