GHC error on Win 8.1 64bit

Hi, i get the following error when building GHCJS:

Loading package conduit-1.1.1 ... linking ... done.
Loading package yaml-0.8.8.2 ... ghc.exe: panic! (the 'impossible' happened)
  (GHC version 7.8.2 for x86_64-unknown-mingw32):
        loadObj "C:\\Users\\Manuel\\AppData\\Roaming\\cabal\\x86_64-windows-ghc-
7.8.2\\yaml-0.8.8.2\\HSyaml-0.8.8.2.o": failed

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

ghc.exe: Unknown PEi386 section name `.text.unlikely' (while processing: C:\User
s\Manuel\AppData\Roaming\cabal\x86_64-windows-ghc-7.8.2\yaml-0.8.8.2\HSyaml-0.8.
8.2.o)
cabal: Error: some packages failed to install:
ghcjs-0.1.0 failed during the building phase. The exception was:
ExitFailure 1

Also reported this for ghcjs (https://github.com/ghcjs/ghcjs/issues/170)

I am not using the haskell plattform, but the 7.8.2 binaries + MinGW and MSYS. I also tried mingw-w64 but this made no difference. I am also using the recent ghcjs cabal branch.

Trac metadata

Trac field	Value
Version	7.8.2
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
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