From: Simon Marlow <marlo...@gmail.com> Subject: Dynamic libraries and GHCi Date: Mon, 10 May 2010 10:06:21 +0100
> We had planned to switch to using a dynamically-linked GHCi for 6.14.1 > (see http://hackage.haskell.org/trac/ghc/ticket/3658), which on the > whole seems like the right direction to be heading in, since we reduce > the dependence on our own RTS linker. > > The dynamically-linked GHCi works, and passes all the tests. It also > starts up faster than the statically linked one, at least on Linux, > possibly due to a combination of the system linker being faster than > ours and it doing on-demand linking. That's the good news. In fact, it's now mandatory for all Mach-O platforms (seemingly including i386-apple-darwin the Tier-1 platform) to completely switch to dynamically-linked GHCi, as those platforms started failing to build static GHCi libraries that are needed by dph packages' use of TemplateHaskell. For patches and details, see: http://hackage.haskell.org/trac/ghc/ticket/3260#comment:5 http://hackage.haskell.org/trac/ghc/ticket/3594#comment:1 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. Thanks, PHO _______________________________________________________ - PHO - http://cielonegro.org/ OpenPGP public key: 1024D/1A86EF72 Fpr: 5F3E 5B5F 535C CE27 8254 4D1A 14E7 9CA7 1A86 EF72
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