    -----------------------------------------------------------------------------
    -- |
    -- Module      :  Distribution.Simple.Build.PackageInfoModule
    -- Copyright   :
    --
    -- Maintainer  :  cabal-devel@haskell.org
    -- Portability :  portable
    --
    -- Generating the PackageInfo_pkgname module.
    --
    -- This is a module that Cabal generates for the benefit of packages. It
    -- enables them to find their package informations.
    --
    module Distribution.Simple.Build.PackageInfoModule (
        generatePackageInfoModule
      ) where

    import Distribution.Compat.Prelude
    import Prelude ()

    import Distribution.Package
    import Distribution.PackageDescription
    import Distribution.Simple.Compiler
    import Distribution.Simple.LocalBuildInfo
    import Distribution.Utils.ShortText
    import Distribution.Version

    import qualified Distribution.Simple.Build.PackageInfoModule.Z as Z

    -- ------------------------------------------------------------
    -- * Building Paths_<pkg>.hs
    -- ------------------------------------------------------------

    generatePackageInfoModule :: PackageDescription -> LocalBuildInfo -> String
    generatePackageInfoModule :: PackageDescription -> LocalBuildInfo -> String
    generatePackageInfoModule PackageDescription
    pkg_descr LocalBuildInfo
    lbi = Z -> String
    Z.render Z.Z
        { zPackageName :: String
    Z.zPackageName   = PackageName -> String
    showPkgName (PackageName -> String) -> PackageName -> String
    forall a b. (a -> b) -> a -> b
    $ PackageDescription -> PackageName
    forall pkg. Package pkg => pkg -> PackageName
    packageName PackageDescription
    pkg_descr
        , zVersionDigits :: String
    Z.zVersionDigits = [Int] -> String
    forall a. Show a => a -> String
    show ([Int] -> String) -> [Int] -> String
    forall a b. (a -> b) -> a -> b
    $ Version -> [Int]
    versionNumbers (Version -> [Int]) -> Version -> [Int]
    forall a b. (a -> b) -> a -> b
    $ PackageDescription -> Version
    forall pkg. Package pkg => pkg -> Version
    packageVersion PackageDescription
    pkg_descr
        , zSynopsis :: String
    Z.zSynopsis        = ShortText -> String
    fromShortText (ShortText -> String) -> ShortText -> String
    forall a b. (a -> b) -> a -> b
    $ PackageDescription -> ShortText
    synopsis PackageDescription
    pkg_descr
        , zCopyright :: String
    Z.zCopyright       = ShortText -> String
    fromShortText (ShortText -> String) -> ShortText -> String
    forall a b. (a -> b) -> a -> b
    $ PackageDescription -> ShortText
    copyright PackageDescription
    pkg_descr
        , zHomepage :: String
    Z.zHomepage        = ShortText -> String
    fromShortText (ShortText -> String) -> ShortText -> String
    forall a b. (a -> b) -> a -> b
    $ PackageDescription -> ShortText
    homepage PackageDescription
    pkg_descr
        , zSupportsNoRebindableSyntax :: Bool
    Z.zSupportsNoRebindableSyntax = Bool
    supports_rebindable_syntax
        }
      where
        supports_rebindable_syntax :: Bool
    supports_rebindable_syntax   = Version -> Bool
    ghc_newer_than ([Int] -> Version
    mkVersion [Int
    7,Int
    0,Int
    1])

        ghc_newer_than :: Version -> Bool
    ghc_newer_than Version
    minVersion =
            case CompilerFlavor -> Compiler -> Maybe Version
    compilerCompatVersion CompilerFlavor
    GHC (LocalBuildInfo -> Compiler
    compiler LocalBuildInfo
    lbi) of
                Maybe Version
    Nothing      -> Bool
    False
                Just Version
    version -> Version
    version Version -> VersionRange -> Bool
    `withinRange` Version -> VersionRange
    orLaterVersion Version
    minVersion

    showPkgName :: PackageName -> String
    showPkgName :: PackageName -> String
    showPkgName = (Char -> Char) -> String -> String
    forall a b. (a -> b) -> [a] -> [b]
    map Char -> Char
    fixchar (String -> String)
    -> (PackageName -> String) -> PackageName -> String
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . PackageName -> String
    unPackageName

    fixchar :: Char -> Char
    fixchar :: Char -> Char
    fixchar Char
    '-' = Char
    '_'
    fixchar Char
    c   = Char
    c