ghci failed to load static archive

[Simon Marlow]

> I'm sure this is pilot error, but I'm reporting it like the message
> says.  I was trying to figure out how to get the fudgets library
> loaded into ghci.  (I still haven't succeeded, in case you have any
> tips.  Fudgets programs work fine when compiled with ghcxmake.)
> 
>     % ghci -fglasgow-exts 
> /home/pimlott/local/fudgets/lib/GhcFudgets/libFudgets*
>        ___         ___ _
>       / _ \ /\  /\/ __(_)
>      / /_\// /_/ / /  | |      GHC Interactive, version 
> 6.0.1, for Haskell 98.
>     / /_\\/ __  / /___| |      http://www.haskell.org/ghc/
>     \____/\/ /_/\____/|_|      Type :? for help.
> 
>     Loading package base ... linking ... done.
>     Loading object (static) 
> /home/pimlott/local/fudgets/lib/GhcFudgets/libFudgetsXlib.a 
> ... 
> /home/pimlott/local/fudgets/lib/GhcFudgets/libFudgetsXlib.a: 
> not an ELF object
>     ghc-6.0.1: panic! (the `impossible' happened, GHC version 6.0.1):
>             loadObj: failed

GHCi can't load .a libraries.  The documentation (sec. 4.10.3) explains how to turn a .a library into a .o that GHCi can load:

http://www.haskell.org/ghc/docs/latest/html/users_guide/packages.html#BUILDING-PACKAGES

Cheers,
	Simon