Add src/Package/Compile.hs.

src/Package/Compile.hs

+{-# LANGUAGE NoImplicitPrelude, ScopedTypeVariables #-}
+module Package.Compile (buildPackageCompile) where
+
+import Package.Base
+import Development.Shake.Util
+
+-- "inplace/bin/ghc-stage1.exe" -hisuf hi -osuf  o -hcsuf hc -static  -H32m -O    -this-package-key deeps_FT5iVCELxOr62eHY0nbvnU -hide-all-packages -i -ilibraries/deepseq/. -ilibraries/deepseq/dist-install/build -ilibraries/deepseq/dist-install/build/autogen -Ilibraries/deepseq/dist-install/build -Ilibraries/deepseq/dist-install/build/autogen -Ilibraries/deepseq/.    -optP-include -optPlibraries/deepseq/dist-install/build/autogen/cabal_macros.h -package-key array_3w0nMK0JfaFJPpLFn2yWAJ -package-key base_469rOtLAqwTGFEOGWxSUiQ -package-key ghcpr_FgrV6cgh2JHBlbcx1OSlwt -Wall -XHaskell2010 -O2  -no-user-package-db -rtsopts      -odir libraries/deepseq/dist-install/build -hidir libraries/deepseq/dist-install/build -stubdir libraries/deepseq/dist-install/build -split-objs  -c libraries/deepseq/./Control/DeepSeq.hs -o libraries/deepseq/dist-install/build/Control/DeepSeq.o
+
+suffixArgs :: Way -> Args
+suffixArgs way = arg ["-hisuf", hisuf way, "-osuf", osuf way, "-hcsuf", hcsuf way]
+
+buildPackageCompile :: Package -> TodoItem -> Rules ()
+buildPackageCompile (Package name path _) (stage, dist, settings) =
+    let buildDir = path </> dist
+        pkgData  = buildDir </> "package-data.mk"
+        depFile  = buildDir </> "build" </> name <.> "m"
+    in
+    (buildDir </> "build//*o") %> \out -> do
+        let way  = detectWay $ tail $ takeExtension out
+        need ["shake/src/Package/Compile.hs"] -- Track changes in this file
+        need [depFile]
+        depContents <- parseMakefile <$> (liftIO $ readFile depFile)
+        let deps = concat $ snd $ unzip $ filter ((== out) . fst) depContents
+            srcs = filter ("//*hs" ?==) deps
+        need deps
+        run (Ghc stage) $ suffixArgs way
+            <> wayHcArgs way
+            <> arg SrcHcOpts
+            <> packageArgs stage pkgData
+            <> arg "-i"
+            <> includeArgs "-i" path     (SrcDirs pkgData)
+            <> includeArgs "-i" buildDir ["build", "build/autogen"]
+            <> includeArgs "-I" buildDir ["build", "build/autogen"]
+            <> includeArgs "-I" path     (IncludeDirs pkgData)
+            <> arg "-optP-include" -- TODO: Shall we also add -cpp?
+            <> arg ("-optP" ++ buildDir </> "build/autogen/cabal_macros.h")
+            <> arg ["-Wall", "-XHaskell2010", "-O2"] -- TODO: now we have both -O and -O2
+            <> arg ["-odir"        , buildDir </> "build"]
+            <> arg ["-hidir"       , buildDir </> "build"]
+            <> arg ["-stubdir"     , buildDir </> "build"]
+            <> arg "-split-objs"
+            <> arg ("-c":srcs)
+            <> arg ["-o", out]