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26 lines
1.1 KiB
Diff
26 lines
1.1 KiB
Diff
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--- dyre-0.8.12/Config/Dyre/Compile.hs 2015-04-13 11:00:20.794278350 +0100
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+++ dyre-0.8.12-patched/Config/Dyre/Compile.hs 2015-04-13 11:07:26.938893502 +0100
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@@ -10,11 +10,13 @@
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import System.FilePath ( (</>) )
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import System.Directory ( getCurrentDirectory, doesFileExist
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, createDirectoryIfMissing )
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+import System.Environment ( lookupEnv )
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+import Control.Applicative ((<$>))
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import Control.Exception ( bracket )
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-import GHC.Paths ( ghc )
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import Config.Dyre.Paths ( getPaths )
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import Config.Dyre.Params ( Params(..) )
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+import Data.Maybe ( fromMaybe )
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-- | Return the path to the error file.
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getErrorPath :: Params cfgType -> IO FilePath
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@@ -47,6 +49,7 @@
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errFile <- getErrorPath params
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result <- bracket (openFile errFile WriteMode) hClose $ \errHandle -> do
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ghcOpts <- makeFlags params configFile tempBinary cacheDir libsDir
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+ ghc <- fromMaybe "ghc" <$> lookupEnv "NIX_GHC"
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ghcProc <- runProcess ghc ghcOpts (Just cacheDir) Nothing
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Nothing Nothing (Just errHandle)
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waitForProcess ghcProc
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