ghc-7.6.0.20120810-x86_64-windows.exe -> ghc can't figure out LLVM version

I have downloaded:

ghc: ghc-7.6.0.20120810-x86_64-windows.exe

mingw64: http://www.drangon.org/mingw/mirror.php?num=2&fname=mingw-w64-bin-x86_64-20120807.7z

llvm64: http://www.drangon.org/mingw/mirror.php?num=2&fname=llvm-3.1-w64-bin-x86_64-20120610.7z

my path contains:

/c/ghc/ghc-7.6.0.20120810/bin:/c/Users/Cetin/AppData/Roaming/cabal/bin:/c/llvm/bin:/c/mw64/bin

When I run:

ghc -fllvm --make Main.hs

I get:

[1 of 1] Compiling Main             ( Main.hs, Main.o )

<no location info>:
    Warning: Couldn't figure out LLVM version!
             Make sure you have installed LLVM

Attached is the output from:

ghc -v3 -fllvm --make Main.hs

for all Main.hs - it mentions:

*** LlVM CodeGen:
Error (figuring out LLVM version): : runInteractiveProcess: invalid argument (Invalid argument)

<no location info>:
    Warning: Couldn't figure out LLVM version!
             Make sure you have installed LLVM
*** LLVM Optimiser:
"" "C:\Users\Cetin\AppData\Local\Temp\ghc6036_0\ghc6036_0.ll" "-o" "C:\Users\Cetin\AppData\Local\Temp\ghc6036_0\ghc6036_0.bc" "-mem2reg" "--enable-tbaa=true"


Failed: "" "C:\Users\Cetin\AppData\Local\Temp\ghc6036_0\ghc6036_0.ll" "-o" "C:\Users\Cetin\AppData\Local\Temp\ghc6036_0\ghc6036_0.bc" "-mem2reg" "--enable-tb

Trac metadata

Trac field	Value
Version	7.6.1-rc1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture	x86_64 (amd64)