Without this patch, building on OpenBSD fails with a type error in `Utility/DirWatcher/Kqueue.hs`.

I'm running OpenBSD current. This patch is against master (commit 7d18153955).

```
diff --git a/Utility/DirWatcher/Kqueue.hs b/Utility/DirWatcher/Kqueue.hs
index 4a1c55ae9..0c84f67c1 100644
--- a/Utility/DirWatcher/Kqueue.hs
+++ b/Utility/DirWatcher/Kqueue.hs
@@ -133,7 +133,7 @@ removeSubDir dirmap dir = do
 	mapM_ Posix.closeFd $ M.keys toremove
 	return rest
   where
-	(toremove, rest) = M.partition (dirContains dir . dirName) dirmap
+	(toremove, rest) = M.partition (dirContains (toRawFilePath dir) . toRawFilePath . dirName) dirmap
 
 findDirContents :: DirMap -> FilePath -> [FilePath]
 findDirContents dirmap dir = concatMap absolutecontents $ search
```

> [[done]] --[[Joey]]
