Test hsc2hs/T12504 is failing thus on Windows. Something path-y.
Simon
-{-# LINE 1 "T12504/path/to/T12504.hsc" #-}
-{-# LINE 2 "T12504/path/to/T12504.hsc" #-}
+{-# LINE 1 "T12504\\path\\to\\T12504.hsc" #-}
+{-# LINE 2 "T12504\\path\\to\\T12504.hsc" #-}
*** unexpected failure for T12504(normal)