--- a/tools/PascalPreprocessor.hs	Sun Nov 04 02:35:17 2012 +0100
+++ b/tools/PascalPreprocessor.hs	Sun Nov 04 03:04:20 2012 +0100
@@ -22,8 +22,8 @@
     , ("S3D_DISABLED", "")
     ]
 
-preprocess :: String -> String -> IO String
-preprocess inputPath fn = do
+preprocess :: String -> String -> String -> IO String
+preprocess inputPath alternateInputPath fn = do
     r <- runParserT (preprocessFile (inputPath ++ fn)) (initDefines, [True]) "" ""
     case r of
          (Left a) -> do
@@ -79,7 +79,7 @@
         char '"'
         spaces
         char '}'
-        f <- liftIO (readFile (inputPath ++ fn) `catch` error ("File not found: " ++ fn))
+        f <- liftIO (readFile (inputPath ++ fn) `catch` (\exc -> readFile (alternateInputPath ++ fn) `catch` error ("File not found: " ++ fn)))
         c <- getInput
         setInput $ f ++ c
         return ""

--- a/tools/pas2c.hs	Sun Nov 04 02:35:17 2012 +0100
+++ b/tools/pas2c.hs	Sun Nov 04 03:04:20 2012 +0100
@@ -94,8 +94,8 @@
 docToLower :: Doc -> Doc
 docToLower = text . map toLower . render
 
-pas2C :: String -> String -> String -> IO ()
-pas2C fn inputPath outputPath = do
+pas2C :: String -> String -> String -> String -> IO ()
+pas2C fn inputPath alternateInputPath outputPath = do
     s <- flip execStateT initState $ f fn
     renderCFiles s outputPath
     where
@@ -109,7 +109,7 @@
             print ("Preprocessing '" ++ fileName ++ ".pas'... ")
             fc' <- liftIO
                 $ tryJust (guard . isDoesNotExistError)
-                $ preprocess inputPath (fileName ++ ".pas")
+                $ preprocess inputPath alternateInputPath (fileName ++ ".pas")
             case fc' of
                 (Left a) -> do
                     modify (Map.insert fileName (System []))
@@ -1087,4 +1087,5 @@
     let programName = "hwengine"
     let inputPath = "../hedgewars/"
     let outputPath = "./"
-    pas2C programName inputPath outputPath
+    let alternateInputPath = "./"
+    pas2C programName inputPath alternateInputPath outputPath