[GHC] #3242: ghci: can't load .so/.DLL for: m (addDLL: could not load DLL)

[GHC]

#3242: ghci: can't load .so/.DLL for: m (addDLL: could not load DLL)
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              Reporter:  jeffz1        |            Owner:
                  Type:  bug           |           Status:  new
              Priority:  normal        |        Milestone:  7.10.1
             Component:  GHCi          |          Version:  7.4.1
            Resolution:                |         Keywords:
      Operating System:  Windows       |     Architecture:  x86
       Type of failure:  None/Unknown  |       Difficulty:  Unknown
             Test Case:                |       Blocked By:  3658
              Blocking:                |  Related Tickets:  #7097
Differential Revisions:                |
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Comment (by dreixel):

 I hit this problem too with `criterion` on Windows. `criterion` depends on
 `hastache`, which depends on `ieee754` without any version bounds.
 `ieee754-0.7.4` is good, `ieee754-0.7.3` isn't. So I fixed it with the
 following sequence of commands:
 {{{
 ghc-pkg unregister criterion-1.0.1.0
 ghc-pkg unregister hastache-0.6.0
 ghc-pkg unregister ieee754-0.7.3
 cabal install criterion --constraint="ieee754-0.7.4"
 }}}

 Hopefully others can do something similar to this. Also, package authors
 should update their packages to require `ieee754 >= 0.7.4`.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/3242#comment:31>
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