Fixes for dev-haskell/haddock

Package-Manager: portage-2.1.6.12/cvs/Linux x86_64

1 files changed, 72 insertions, 0 deletions

diff --git a/dev-haskell/haddock/files/haddock-2.4.2-Setup.hs b/dev-haskell/haddock/files/haddock-2.4.2-Setup.hs
new file mode 100644
index 000000000000..31ee04eb8168
--- /dev/null
+++ b/dev-haskell/haddock/files/haddock-2.4.2-Setup.hs
@@ -0,0 +1,72 @@
+{-
+Setup.hs: based on code from ghc-paths of Simon Marlow
+Fixed to not use the .buildinfo, and use -Dfoo flags for both libraries and executables
+-}
+import Distribution.Simple
+import Distribution.Simple.Setup
+import Distribution.PackageDescription
+import Distribution.Simple.LocalBuildInfo
+import Distribution.InstalledPackageInfo
+import Distribution.Simple.Program
+import Distribution.Simple.PackageIndex as Pkg
+
+import System.Exit
+import System.IO
+import Data.IORef
+import Data.Char
+import Data.Maybe
+
+main = defaultMainWithHooks simpleUserHooks {
+                      confHook    = myCustomConfHook
+                     }
+  where
+    myCustomConfHook :: (Either GenericPackageDescription PackageDescription, HookedBuildInfo)
+                     -> ConfigFlags
+                     -> IO LocalBuildInfo
+    myCustomConfHook egpdpdhbi flags = do
+      -- get the default LBI
+      lbi <- confHook simpleUserHooks egpdpdhbi flags
+      let programs = withPrograms lbi
+
+      libdir_ <- rawSystemProgramStdoutConf (fromFlag (configVerbosity flags))
+                     ghcProgram programs ["--print-libdir"]
+      let libdir = reverse $ dropWhile isSpace $ reverse libdir_
+
+          ghc_pkg = case lookupProgram ghcPkgProgram programs of
+                          Just p  -> programPath p
+                          Nothing -> error "ghc-pkg was not found"
+          ghc     = case lookupProgram ghcProgram programs of
+                          Just p  -> programPath p
+                          Nothing -> error "ghc was not found"
+
+          -- figure out docdir from base's haddock-html field
+          base_pkg = case searchByName (installedPkgs lbi) "base" of
+                        None -> error "no base package"
+                        Unambiguous (x:_) -> x
+                        _ -> error "base ambiguous"
+          base_html = case haddockHTMLs base_pkg of
+                        [] -> ""
+                        (x:_) -> x
+          docdir = fromMaybe base_html $
+                        fmap reverse (stripPrefix (reverse "/libraries/base")
+                                                  (reverse base_html))
+
+      let programs' = userSpecifyArgs "ghc" ["-DGHC_PATHS_GHC_PKG=" ++ show ghc_pkg,
+                                             "-DGHC_PATHS_GHC=" ++ show ghc,
+                                             "-DGHC_PATHS_LIBDIR=" ++ show libdir,
+                                             "-DGHC_PATHS_DOCDIR=" ++ show docdir
+                                            ] programs
+      -- returning our modified LBI that includes the -D definitions
+      return lbi { withPrograms = programs' }
+
+die :: String -> IO a
+die msg = do
+  hFlush stdout
+  hPutStr stderr msg
+  exitWith (ExitFailure 1)
+
+stripPrefix :: Eq a => [a] -> [a] -> Maybe [a]
+stripPrefix [] ys = Just ys
+stripPrefix (x:xs) (y:ys)
+ | x == y = stripPrefix xs ys
+stripPrefix _ _ = Nothing