windows build failure

[Simon Peyton-Jones]

My windows build falls over thus when making a distribution.  Can anyone help?

S


/usr/bin/install -c -m 644  utils/hsc2hs/template-hsc.h "c:/code/HEAD/bindistprep/ghc-7.5.20120113/lib"
/usr/bin/install -c -m 755 -d "c:/code/HEAD/bindistprep/ghc-7.5.20120113/bin"
for i in utils/hp2ps/dist/build/tmp/hp2ps.exe driver/ghci/dist/build/tmp/ghci.exe driver/ghci/dist/build/tmp/ghci-7.5.20120113.exe driver/ghc/dist/build/tmp/ghc-7.5.20120113 driver/haddock/dist/build/tmp/haddock-7.5.20120113 utils/haddock/dist/build/tmp/haddock.exe utils/hsc2hs/dist-install/build/tmp/hsc2hs.exe utils/ghc-pkg/dist-install/build/tmp/ghc-pkg utils/hpc/dist-install/build/tmp/hpc.exe utils/runghc/dist-install/build/tmp/runghc.exe ghc/stage2/build/tmp/ghc-stage2.exe; do \
                                /usr/bin/install -c -m 755  $i "c:/code/HEAD/bindistprep/ghc-7.5.20120113/bin" ;  \
                done
"cp" c:/code/HEAD/bindistprep/ghc-7.5.20120113/bin/runghc.exe c:/code/HEAD/bindistprep/ghc-7.5.20120113/bin/runhaskell.exe
"rm" -f c:/code/HEAD/bindistprep/ghc-7.5.20120113/bin/ghc.exe
"mv" -f c:/code/HEAD/bindistprep/ghc-7.5.20120113/bin/ghc-stage2.exe c:/code/HEAD/bindistprep/ghc-7.5.20120113/bin/ghc.exe
"cp" -Rp inplace/mingw c:/code/HEAD/bindistprep/ghc-7.5.20120113
"cp" -Rp inplace/perl c:/code/HEAD/bindistprep/ghc-7.5.20120113
make[3]: *** No rule to make target `libffi/build/inst/bin/libffi-5.dll', needed by `rts/dist/build/libffi-5.dll'.  Stop.
make[2]: *** [install] Error 2
make[1]: *** [windows-binary-dist-prep] Error 2
make: *** [binary-dist-prep] Error 2
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