[GHC] #5019: OS X: ld: warning: could not create compact unwind for _ffi_call_unix64

[GHC]

#5019: OS X: ld: warning: could not create compact unwind for _ffi_call_unix64
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        Reporter:  altaic                        |            Owner:
            Type:  bug                           |           Status:
        Priority:  high                          |  infoneeded
       Component:  Compiler                      |        Milestone:  7.8.1
      Resolution:                                |          Version:  7.1
Operating System:  MacOS X                       |         Keywords:
 Type of failure:  Incorrect warning at          |     Architecture:
  compile-time                                   |  x86_64 (amd64)
       Test Case:                                |       Difficulty:
        Blocking:                                |  Unknown
                                                 |       Blocked By:
                                                 |  Related Tickets:
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Changes (by George):

 * status:  new => infoneeded


Comment:

 Is this still happening or limited to the 32 bit version of Haskell? I
 haven't seen it in at least a year now. If it is still happening it would
 be nice if there was a description of an easy way to reproduce. I am now
 using Xcode 5 and OS X Mavericks.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5019#comment:22>
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