Fix hsc2hs finding its template file on Windows

[ghc-hetmet.git] / utils / hsc2hs / Main.hs

diff --git a/utils/hsc2hs/Main.hs b/utils/hsc2hs/Main.hs
index 978cc4b..b422986 100644 (file)
--- a/utils/hsc2hs/Main.hs
+++ b/utils/hsc2hs/Main.hs
@@ -58,6 +58,9 @@ import System                   ( system )
 #endif
 #endif
 
+import Distribution.Text
+import qualified Paths_hsc2hs
+
 version :: String
 version = "hsc2hs version 0.66\n"
 
@@ -137,7 +140,10 @@ main = do
                            case mb_path of
                              Nothing   -> return id
                              Just path -> do
-                               let templ = path ++ "/template-hsc.h"
+                              -- Euch, this is horrible. Unfortunately
+                              -- Paths_hsc2hs isn't too useful for a
+                              -- relocatable binary, though.
+                               let templ = path ++ "/hsc2hs-" ++ display Paths_hsc2hs.version ++ "/template-hsc.h"
                                flg <- doesFileExist templ
                                if flg
                                 then return ((Template templ):)
@@ -575,13 +581,11 @@ output flags name toks = do
        -- (called hsc2hs-inplace, generated from hsc2hs.sh)
     compiler <- case [c | Compiler c <- flags] of
         []  -> locateGhc "ghc"
-        [c] -> return c
-        _   -> onlyOne "compiler"
+        cs  -> return (last cs)
 
     linker <- case [l | Linker l <- flags] of
         []  -> locateGhc compiler
-        [l] -> return l
-        _   -> onlyOne "linker"
+        ls  -> return (last ls)
 
     writeFile cProgName $
         concatMap outFlagHeaderCProg flags++