X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=libraries%2FifBuildable.hs;h=68b619751b63f6b659cda495e19bb26916f22a53;hb=b547f2e28b0f07b089aada1164c1dd834f894996;hp=93118ab281b23e2c1c690ae0d9b6c52058918277;hpb=dab5f1b5a1df0fdff2c9942ca311616ad472adcd;p=ghc-hetmet.git

diff --git a/libraries/ifBuildable.hs b/libraries/ifBuildable.hs
index 93118ab..68b6197 100644
--- a/libraries/ifBuildable.hs
+++ b/libraries/ifBuildable.hs
@@ -12,24 +12,29 @@ import System.IO
 main :: IO ()
 main = do args <- getArgs
           case args of
-              [package] ->
-                  doit package
+              [packagesFile, package] ->
+                  doit packagesFile package
               _ ->
-                  error "Syntax: ifBuildable <package>"
+                  error "Syntax: ifBuildable <packages-file> <package>"
 
-doit :: String -> IO ()
-doit package
+doit :: FilePath -> String -> IO ()
+doit packagesFile package
  = do setCurrentDirectory package
       unbuildable <- doesFileExist "unbuildable"
       if not unbuildable
          then exitWith ExitSuccess
-         else do mustBeBuildables <- getMustBeBuildablePackages
+         else do mustBeBuildables <- getMustBeBuildables packagesFile
                  if package `elem` mustBeBuildables
                      then exitWith ExitSuccess
                      else do hPutStrLn stderr "Warning: Package is unbuildable"
                              exitWith (ExitFailure 1)
 
-getMustBeBuildablePackages :: IO [String]
-getMustBeBuildablePackages
- = do xs <- readFile "../boot-packages"
-      return $ filter ("editline" /=) $ lines xs
+getMustBeBuildables :: FilePath -> IO [String]
+getMustBeBuildables packagesFile
+ = do xs <- readFile packagesFile
+      let nonCommentLines = filter (("#" /=) . take 1) $ lines xs
+          requiredLines = filter ((3 == ) . length) $ map words nonCommentLines
+          requiredLibraries = [ x | 'l':'i':'b':'r':'a':'r':'i':'e':'s':'/':x
+                                    <- map head requiredLines ]
+      return $ filter ("editline" /=) requiredLibraries
+