Simplified Setup.hs.

It no longer builds and installs man pages.

All it does is hook the hsb preprocessor.

This should make the build process more robust over Cabal API
changes.  We'll add a Makefile to generate man pages.

Setup.hs

@@ -1,4 +1,3 @@
-{-# LANGUAGE CPP #-}
 {-
 Copyright (C) 2006-2014 John MacFarlane <jgm@berkeley.edu>
 
@@ -19,60 +18,14 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 import Distribution.Simple
 import Distribution.Simple.PreProcess
-import Distribution.Simple.Setup
-         (copyDest, copyVerbosity, fromFlag, installVerbosity, BuildFlags(..),
-          TestFlags(..))
-import Distribution.PackageDescription (PackageDescription(..), Executable(..))
-import Distribution.Simple.LocalBuildInfo
-         (LocalBuildInfo(..), absoluteInstallDirs)
-import Distribution.Verbosity ( Verbosity, silent )
-import Distribution.Simple.InstallDirs (mandir, CopyDest (NoCopyDest), toPathTemplate)
-import Distribution.Simple.Utils (installOrdinaryFiles, info)
-import Distribution.Simple.Test (test)
 import System.Process ( rawSystem )
 import System.FilePath ( (</>) )
 import System.Directory ( findExecutable )
-import System.Exit
+import Distribution.Simple.Utils (info)
 
 main :: IO ()
-main = do
-  defaultMainWithHooks $ simpleUserHooks {
-      postBuild = makeManPages
-    , postCopy = \ _ flags pkg lbi ->
-         installManpages pkg lbi (fromFlag $ copyVerbosity flags)
-              (fromFlag $ copyDest flags)
-    , postInst = \ _ flags pkg lbi ->
-         installManpages pkg lbi (fromFlag $ installVerbosity flags) NoCopyDest
-    , copyHook = \pkgdescr ->
-         (copyHook simpleUserHooks) pkgdescr{ executables =
-            [x | x <- executables pkgdescr, exeName x /= "make-pandoc-man-pages"] }
-    , instHook = \pkgdescr ->
-         (instHook simpleUserHooks) pkgdescr{ executables =
-            [x | x <- executables pkgdescr, exeName x /= "make-pandoc-man-pages"] }
-    , hookedPreProcessors = [ppBlobSuffixHandler]
-    }
-  exitWith ExitSuccess
-
--- | Build man pages from markdown sources in man/
-makeManPages :: Args -> BuildFlags -> PackageDescription -> LocalBuildInfo -> IO ()
-makeManPages _ flags _ lbi = do
-  let verbosity = fromFlag $ buildVerbosity flags
-  let args = ["--verbose" | verbosity /= silent]
-  rawSystem (buildDir lbi </> "make-pandoc-man-pages" </> "make-pandoc-man-pages")
-      args >>= exitWith
-
-manpages :: [FilePath]
-manpages = ["man1" </> "pandoc.1"
-           ,"man5" </> "pandoc_markdown.5"]
-
-manDir :: FilePath
-manDir = "man"
-
-installManpages :: PackageDescription -> LocalBuildInfo
-                -> Verbosity -> CopyDest -> IO ()
-installManpages pkg lbi verbosity copy =
-  installOrdinaryFiles verbosity (mandir (absoluteInstallDirs pkg lbi copy))
-             (zip (repeat manDir) manpages)
+main = defaultMainWithHooks $ simpleUserHooks {
+    hookedPreProcessors = [ppBlobSuffixHandler] }
 
 ppBlobSuffixHandler :: PPSuffixHandler
 ppBlobSuffixHandler = ("hsb", \_ _ ->
@@ -85,5 +38,4 @@ ppBlobSuffixHandler = ("hsb", \_ _ ->
             Just p  -> rawSystem p [infile, infile, outfile]
             Nothing -> error "hsb2hs is needed to build this program: cabal install hsb2hs"
          return ()
-
   })