[GHC] #10165: Win32 broken with GHC 7.10 RC3

[GHC]

#10165: Win32 broken with GHC 7.10 RC3
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              Reporter:  NeilMitchell  |             Owner:
                  Type:  bug           |            Status:  new
              Priority:  normal        |         Milestone:
             Component:  Compiler      |           Version:  7.10.1-rc3
              Keywords:                |  Operating System:  Windows
          Architecture:  x86           |   Type of failure:  Runtime crash
             Test Case:                |        Blocked By:
              Blocking:                |   Related Tickets:
Differential Revisions:                |
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 Using the 32bit Windows build of GHC 7.10 RC3 (ghc-7.10.0.20150316) I
 can't load the Win32 library. I get the problem:

 {{{
 C:\Neil>ghci
 GHCi, version 7.10.0.20150316: http://www.haskell.org/ghc/  :? for help
 Prelude> import System.Win32
 Prelude System.Win32> wRITE_DAC
 <interactive>:
 C:\ghc\ghc-7.10.0.20150316\lib\Win32_6dnIMpnCmqmCdDB983aKnr\HSWin
 32-2.3.1.0-6dnIMpnCmqmCdDB983aKnr.o: unknown symbol `_SetWindowLongPtrW'
 ghc.exe: unable to load package `Win32-2.3.1.0'
 }}}

 This seems very serious, and breaks all packages that indirectly depend on
 the Win32 module (which on Windows is most of them).

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10165>
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