[Haskell-cafe] llvm package on Windows

I am trying to install llvm-0.9.0.1 on Windows (through cygwin), on top of a clean install of Haskell Platform 2010.2.0.0. I do cabal install llvm --configure-option --with-llvm-prefix="C:\\llvm" (which is where I unpacked llvm-gcc4.2-2.8-x86-mingw43.tar.bz2). This fails with .....mingw\bin\ld.exe: cannot find -lLLVMXCoreAsmPrinter (which is indeed the first -l option on the gcc line). [I also tried the llvm-ht package, same issue; I can't tell which of the 2 packages is 'best' from the online doc] Perhaps I need to 'install' llvm more thoroughly? [Most of the instructions online seem to assume you want to use llvm-gcc, which is not my case] Any clues? Jacques