{-# LANGUAGE FlexibleContexts #-} {-# LANGUAGE RankNTypes #-} ----------------------------------------------------------------------------- -- | -- Module : Distribution.Simple.PreProcess -- Copyright : (c) 2003-2005, Isaac Jones, Malcolm Wallace -- License : BSD3 -- -- Maintainer : cabal-devel@haskell.org -- Portability : portable -- -- This defines a 'PreProcessor' abstraction which represents a pre-processor -- that can transform one kind of file into another. There is also a -- 'PPSuffixHandler' which is a combination of a file extension and a function -- for configuring a 'PreProcessor'. It defines a bunch of known built-in -- preprocessors like @cpp@, @cpphs@, @c2hs@, @hsc2hs@, @happy@, @alex@ etc and -- lists them in 'knownSuffixHandlers'. On top of this it provides a function -- for actually preprocessing some sources given a bunch of known suffix -- handlers. This module is not as good as it could be, it could really do with -- a rewrite to address some of the problems we have with pre-processors. module Distribution.Simple.PreProcess (preprocessComponent, preprocessExtras, knownSuffixHandlers, ppSuffixes, PPSuffixHandler, PreProcessor(..), mkSimplePreProcessor, runSimplePreProcessor, ppCpp, ppCpp', ppGreenCard, ppC2hs, ppHsc2hs, ppHappy, ppAlex, ppUnlit, platformDefines ) where import Prelude () import Distribution.Compat.Prelude import Distribution.Compat.Stack import Distribution.Simple.PreProcess.Unlit import Distribution.Backpack.DescribeUnitId import Distribution.Package import qualified Distribution.ModuleName as ModuleName import Distribution.ModuleName (ModuleName) import Distribution.PackageDescription as PD import qualified Distribution.InstalledPackageInfo as Installed import qualified Distribution.Simple.PackageIndex as PackageIndex import Distribution.Simple.CCompiler import Distribution.Simple.Compiler import Distribution.Simple.LocalBuildInfo import Distribution.Simple.BuildPaths import Distribution.Simple.Utils import Distribution.Simple.Program import Distribution.Simple.Program.ResponseFile import Distribution.Simple.Test.LibV09 import Distribution.System import Distribution.Text import Distribution.Version import Distribution.Verbosity import Distribution.Types.ForeignLib import Distribution.Types.UnqualComponentName import System.Directory (doesFileExist) import System.Info (os, arch) import System.FilePath (splitExtension, dropExtensions, (), (<.>), takeDirectory, normalise, replaceExtension, takeExtensions) -- |The interface to a preprocessor, which may be implemented using an -- external program, but need not be. The arguments are the name of -- the input file, the name of the output file and a verbosity level. -- Here is a simple example that merely prepends a comment to the given -- source file: -- -- > ppTestHandler :: PreProcessor -- > ppTestHandler = -- > PreProcessor { -- > platformIndependent = True, -- > runPreProcessor = mkSimplePreProcessor $ \inFile outFile verbosity -> -- > do info verbosity (inFile++" has been preprocessed to "++outFile) -- > stuff <- readFile inFile -- > writeFile outFile ("-- preprocessed as a test\n\n" ++ stuff) -- > return ExitSuccess -- -- We split the input and output file names into a base directory and the -- rest of the file name. The input base dir is the path in the list of search -- dirs that this file was found in. The output base dir is the build dir where -- all the generated source files are put. -- -- The reason for splitting it up this way is that some pre-processors don't -- simply generate one output .hs file from one input file but have -- dependencies on other generated files (notably c2hs, where building one -- .hs file may require reading other .chi files, and then compiling the .hs -- file may require reading a generated .h file). In these cases the generated -- files need to embed relative path names to each other (eg the generated .hs -- file mentions the .h file in the FFI imports). This path must be relative to -- the base directory where the generated files are located, it cannot be -- relative to the top level of the build tree because the compilers do not -- look for .h files relative to there, ie we do not use \"-I .\", instead we -- use \"-I dist\/build\" (or whatever dist dir has been set by the user) -- -- Most pre-processors do not care of course, so mkSimplePreProcessor and -- runSimplePreProcessor functions handle the simple case. -- data PreProcessor = PreProcessor { -- Is the output of the pre-processor platform independent? eg happy output -- is portable haskell but c2hs's output is platform dependent. -- This matters since only platform independent generated code can be -- included into a source tarball. platformIndependent :: Bool, -- TODO: deal with pre-processors that have implementation dependent output -- eg alex and happy have --ghc flags. However we can't really include -- ghc-specific code into supposedly portable source tarballs. runPreProcessor :: (FilePath, FilePath) -- Location of the source file relative to a base dir -> (FilePath, FilePath) -- Output file name, relative to an output base dir -> Verbosity -- verbosity -> IO () -- Should exit if the preprocessor fails } -- | Function to determine paths to possible extra C sources for a -- preprocessor: just takes the path to the build directory and uses -- this to search for C sources with names that match the -- preprocessor's output name format. type PreProcessorExtras = FilePath -> IO [FilePath] mkSimplePreProcessor :: (FilePath -> FilePath -> Verbosity -> IO ()) -> (FilePath, FilePath) -> (FilePath, FilePath) -> Verbosity -> IO () mkSimplePreProcessor simplePP (inBaseDir, inRelativeFile) (outBaseDir, outRelativeFile) verbosity = simplePP inFile outFile verbosity where inFile = normalise (inBaseDir inRelativeFile) outFile = normalise (outBaseDir outRelativeFile) runSimplePreProcessor :: PreProcessor -> FilePath -> FilePath -> Verbosity -> IO () runSimplePreProcessor pp inFile outFile verbosity = runPreProcessor pp (".", inFile) (".", outFile) verbosity -- |A preprocessor for turning non-Haskell files with the given extension -- into plain Haskell source files. type PPSuffixHandler = (String, BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor) -- | Apply preprocessors to the sources from 'hsSourceDirs' for a given -- component (lib, exe, or test suite). preprocessComponent :: PackageDescription -> Component -> LocalBuildInfo -> ComponentLocalBuildInfo -> Bool -> Verbosity -> [PPSuffixHandler] -> IO () preprocessComponent pd comp lbi clbi isSrcDist verbosity handlers = do -- NB: never report instantiation here; we'll report it properly when -- building. setupMessage' verbosity "Preprocessing" (packageId pd) (componentLocalName clbi) (Nothing :: Maybe [(ModuleName, Module)]) case comp of (CLib lib@Library{ libBuildInfo = bi }) -> do let dirs = hsSourceDirs bi ++ [autogenComponentModulesDir lbi clbi ,autogenPackageModulesDir lbi] for_ (map ModuleName.toFilePath $ allLibModules lib clbi) $ pre dirs (componentBuildDir lbi clbi) (localHandlers bi) (CFLib flib@ForeignLib { foreignLibBuildInfo = bi, foreignLibName = nm }) -> do let nm' = unUnqualComponentName nm let flibDir = buildDir lbi nm' nm' ++ "-tmp" dirs = hsSourceDirs bi ++ [autogenComponentModulesDir lbi clbi ,autogenPackageModulesDir lbi] for_ (map ModuleName.toFilePath $ foreignLibModules flib) $ pre dirs flibDir (localHandlers bi) (CExe exe@Executable { buildInfo = bi, exeName = nm }) -> do let nm' = unUnqualComponentName nm let exeDir = buildDir lbi nm' nm' ++ "-tmp" dirs = hsSourceDirs bi ++ [autogenComponentModulesDir lbi clbi ,autogenPackageModulesDir lbi] for_ (map ModuleName.toFilePath $ otherModules bi) $ pre dirs exeDir (localHandlers bi) pre (hsSourceDirs bi) exeDir (localHandlers bi) $ dropExtensions (modulePath exe) CTest test@TestSuite{ testName = nm } -> do let nm' = unUnqualComponentName nm case testInterface test of TestSuiteExeV10 _ f -> preProcessTest test f $ buildDir lbi nm' nm' ++ "-tmp" TestSuiteLibV09 _ _ -> do let testDir = buildDir lbi stubName test stubName test ++ "-tmp" writeSimpleTestStub test testDir preProcessTest test (stubFilePath test) testDir TestSuiteUnsupported tt -> die' verbosity $ "No support for preprocessing test " ++ "suite type " ++ display tt CBench bm@Benchmark{ benchmarkName = nm } -> do let nm' = unUnqualComponentName nm case benchmarkInterface bm of BenchmarkExeV10 _ f -> preProcessBench bm f $ buildDir lbi nm' nm' ++ "-tmp" BenchmarkUnsupported tt -> die' verbosity $ "No support for preprocessing benchmark " ++ "type " ++ display tt where builtinHaskellSuffixes = ["hs", "lhs", "hsig", "lhsig"] builtinCSuffixes = cSourceExtensions builtinSuffixes = builtinHaskellSuffixes ++ builtinCSuffixes localHandlers bi = [(ext, h bi lbi clbi) | (ext, h) <- handlers] pre dirs dir lhndlrs fp = preprocessFile dirs dir isSrcDist fp verbosity builtinSuffixes lhndlrs preProcessTest test = preProcessComponent (testBuildInfo test) (testModules test) preProcessBench bm = preProcessComponent (benchmarkBuildInfo bm) (benchmarkModules bm) preProcessComponent bi modules exePath dir = do let biHandlers = localHandlers bi sourceDirs = hsSourceDirs bi ++ [ autogenComponentModulesDir lbi clbi , autogenPackageModulesDir lbi ] sequence_ [ preprocessFile sourceDirs dir isSrcDist (ModuleName.toFilePath modu) verbosity builtinSuffixes biHandlers | modu <- modules ] preprocessFile (dir : (hsSourceDirs bi)) dir isSrcDist (dropExtensions $ exePath) verbosity builtinSuffixes biHandlers --TODO: try to list all the modules that could not be found -- not just the first one. It's annoying and slow due to the need -- to reconfigure after editing the .cabal file each time. -- |Find the first extension of the file that exists, and preprocess it -- if required. preprocessFile :: [FilePath] -- ^source directories -> FilePath -- ^build directory -> Bool -- ^preprocess for sdist -> FilePath -- ^module file name -> Verbosity -- ^verbosity -> [String] -- ^builtin suffixes -> [(String, PreProcessor)] -- ^possible preprocessors -> IO () preprocessFile searchLoc buildLoc forSDist baseFile verbosity builtinSuffixes handlers = do -- look for files in the various source dirs with this module name -- and a file extension of a known preprocessor psrcFiles <- findFileWithExtension' (map fst handlers) searchLoc baseFile case psrcFiles of -- no preprocessor file exists, look for an ordinary source file -- just to make sure one actually exists at all for this module. -- Note: by looking in the target/output build dir too, we allow -- source files to appear magically in the target build dir without -- any corresponding "real" source file. This lets custom Setup.hs -- files generate source modules directly into the build dir without -- the rest of the build system being aware of it (somewhat dodgy) Nothing -> do bsrcFiles <- findFileWithExtension builtinSuffixes (buildLoc : searchLoc) baseFile case bsrcFiles of Nothing -> die' verbosity $ "can't find source for " ++ baseFile ++ " in " ++ intercalate ", " searchLoc _ -> return () -- found a pre-processable file in one of the source dirs Just (psrcLoc, psrcRelFile) -> do let (srcStem, ext) = splitExtension psrcRelFile psrcFile = psrcLoc psrcRelFile pp = fromMaybe (error "Distribution.Simple.PreProcess: Just expected") (lookup (tailNotNull ext) handlers) -- Preprocessing files for 'sdist' is different from preprocessing -- for 'build'. When preprocessing for sdist we preprocess to -- avoid that the user has to have the preprocessors available. -- ATM, we don't have a way to specify which files are to be -- preprocessed and which not, so for sdist we only process -- platform independent files and put them into the 'buildLoc' -- (which we assume is set to the temp. directory that will become -- the tarball). --TODO: eliminate sdist variant, just supply different handlers when (not forSDist || forSDist && platformIndependent pp) $ do -- look for existing pre-processed source file in the dest dir to -- see if we really have to re-run the preprocessor. ppsrcFiles <- findFileWithExtension builtinSuffixes [buildLoc] baseFile recomp <- case ppsrcFiles of Nothing -> return True Just ppsrcFile -> psrcFile `moreRecentFile` ppsrcFile when recomp $ do let destDir = buildLoc dirName srcStem createDirectoryIfMissingVerbose verbosity True destDir runPreProcessorWithHsBootHack pp (psrcLoc, psrcRelFile) (buildLoc, srcStem <.> "hs") where dirName = takeDirectory tailNotNull [] = [] tailNotNull x = tail x -- FIXME: This is a somewhat nasty hack. GHC requires that hs-boot files -- be in the same place as the hs files, so if we put the hs file in dist/ -- then we need to copy the hs-boot file there too. This should probably be -- done another way. Possibly we should also be looking for .lhs-boot -- files, but I think that preprocessors only produce .hs files. runPreProcessorWithHsBootHack pp (inBaseDir, inRelativeFile) (outBaseDir, outRelativeFile) = do runPreProcessor pp (inBaseDir, inRelativeFile) (outBaseDir, outRelativeFile) verbosity exists <- doesFileExist inBoot when exists $ copyFileVerbose verbosity inBoot outBoot where inBoot = replaceExtension inFile "hs-boot" outBoot = replaceExtension outFile "hs-boot" inFile = normalise (inBaseDir inRelativeFile) outFile = normalise (outBaseDir outRelativeFile) -- ------------------------------------------------------------ -- * known preprocessors -- ------------------------------------------------------------ ppGreenCard :: BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor ppGreenCard _ lbi _ = PreProcessor { platformIndependent = False, runPreProcessor = mkSimplePreProcessor $ \inFile outFile verbosity -> runDbProgram verbosity greencardProgram (withPrograms lbi) (["-tffi", "-o" ++ outFile, inFile]) } -- This one is useful for preprocessors that can't handle literate source. -- We also need a way to chain preprocessors. ppUnlit :: PreProcessor ppUnlit = PreProcessor { platformIndependent = True, runPreProcessor = mkSimplePreProcessor $ \inFile outFile verbosity -> withUTF8FileContents inFile $ \contents -> either (writeUTF8File outFile) (die' verbosity) (unlit inFile contents) } ppCpp :: BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor ppCpp = ppCpp' [] ppCpp' :: [String] -> BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor ppCpp' extraArgs bi lbi clbi = case compilerFlavor (compiler lbi) of GHC -> ppGhcCpp ghcProgram (const True) args bi lbi clbi GHCJS -> ppGhcCpp ghcjsProgram (const True) args bi lbi clbi _ -> ppCpphs args bi lbi clbi where cppArgs = getCppOptions bi lbi args = cppArgs ++ extraArgs ppGhcCpp :: Program -> (Version -> Bool) -> [String] -> BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor ppGhcCpp program xHs extraArgs _bi lbi clbi = PreProcessor { platformIndependent = False, runPreProcessor = mkSimplePreProcessor $ \inFile outFile verbosity -> do (prog, version, _) <- requireProgramVersion verbosity program anyVersion (withPrograms lbi) runProgram verbosity prog $ ["-E", "-cpp"] -- This is a bit of an ugly hack. We're going to -- unlit the file ourselves later on if appropriate, -- so we need GHC not to unlit it now or it'll get -- double-unlitted. In the future we might switch to -- using cpphs --unlit instead. ++ (if xHs version then ["-x", "hs"] else []) ++ [ "-optP-include", "-optP"++ (autogenComponentModulesDir lbi clbi cppHeaderName) ] ++ ["-o", outFile, inFile] ++ extraArgs } ppCpphs :: [String] -> BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor ppCpphs extraArgs _bi lbi clbi = PreProcessor { platformIndependent = False, runPreProcessor = mkSimplePreProcessor $ \inFile outFile verbosity -> do (cpphsProg, cpphsVersion, _) <- requireProgramVersion verbosity cpphsProgram anyVersion (withPrograms lbi) runProgram verbosity cpphsProg $ ("-O" ++ outFile) : inFile : "--noline" : "--strip" : (if cpphsVersion >= mkVersion [1,6] then ["--include="++ (autogenComponentModulesDir lbi clbi cppHeaderName)] else []) ++ extraArgs } ppHsc2hs :: BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor ppHsc2hs bi lbi clbi = PreProcessor { platformIndependent = False, runPreProcessor = mkSimplePreProcessor $ \inFile outFile verbosity -> do (gccProg, _) <- requireProgram verbosity gccProgram (withPrograms lbi) (hsc2hsProg, hsc2hsVersion, _) <- requireProgramVersion verbosity hsc2hsProgram anyVersion (withPrograms lbi) -- See Trac #13896 and https://github.com/haskell/cabal/issues/3122. let hsc2hsSupportsResponseFiles = hsc2hsVersion >= mkVersion [0,68,4] pureArgs = genPureArgs gccProg inFile outFile if hsc2hsSupportsResponseFiles then withResponseFile verbosity defaultTempFileOptions (takeDirectory outFile) "hsc2hs-response.txt" Nothing pureArgs (\responseFileName -> runProgram verbosity hsc2hsProg ["@"++ responseFileName]) else runProgram verbosity hsc2hsProg pureArgs } where -- Returns a list of command line arguments that can either be passed -- directly, or via a response file. genPureArgs :: ConfiguredProgram -> String -> String -> [String] genPureArgs gccProg inFile outFile = [ "--cc=" ++ programPath gccProg , "--ld=" ++ programPath gccProg ] -- Additional gcc options ++ [ "--cflag=" ++ opt | opt <- programDefaultArgs gccProg ++ programOverrideArgs gccProg ] ++ [ "--lflag=" ++ opt | opt <- programDefaultArgs gccProg ++ programOverrideArgs gccProg ] -- OSX frameworks: ++ [ what ++ "=-F" ++ opt | isOSX , opt <- nub (concatMap Installed.frameworkDirs pkgs) , what <- ["--cflag", "--lflag"] ] ++ [ "--lflag=" ++ arg | isOSX , opt <- PD.frameworks bi ++ concatMap Installed.frameworks pkgs , arg <- ["-framework", opt] ] -- Note that on ELF systems, wherever we use -L, we must also use -R -- because presumably that -L dir is not on the normal path for the -- system's dynamic linker. This is needed because hsc2hs works by -- compiling a C program and then running it. ++ [ "--cflag=" ++ opt | opt <- platformDefines lbi ] -- Options from the current package: ++ [ "--cflag=-I" ++ dir | dir <- PD.includeDirs bi ] ++ [ "--cflag=-I" ++ buildDir lbi dir | dir <- PD.includeDirs bi ] ++ [ "--cflag=" ++ opt | opt <- PD.ccOptions bi ++ PD.cppOptions bi -- hsc2hs uses the C ABI -- We assume that there are only C sources -- and C++ functions are exported via a C -- interface and wrapped in a C source file. -- Therefore we do not supply C++ flags -- because there will not be C++ sources. -- -- DO NOT add PD.cxxOptions unless this changes! ] ++ [ "--cflag=" ++ opt | opt <- [ "-I" ++ autogenComponentModulesDir lbi clbi, "-I" ++ autogenPackageModulesDir lbi, "-include", autogenComponentModulesDir lbi clbi cppHeaderName ] ] ++ [ "--lflag=-L" ++ opt | opt <- PD.extraLibDirs bi ] ++ [ "--lflag=-Wl,-R," ++ opt | isELF , opt <- PD.extraLibDirs bi ] ++ [ "--lflag=-l" ++ opt | opt <- PD.extraLibs bi ] ++ [ "--lflag=" ++ opt | opt <- PD.ldOptions bi ] -- Options from dependent packages ++ [ "--cflag=" ++ opt | pkg <- pkgs , opt <- [ "-I" ++ opt | opt <- Installed.includeDirs pkg ] ++ [ opt | opt <- Installed.ccOptions pkg ] ] ++ [ "--lflag=" ++ opt | pkg <- pkgs , opt <- [ "-L" ++ opt | opt <- Installed.libraryDirs pkg ] ++ [ "-Wl,-R," ++ opt | isELF , opt <- Installed.libraryDirs pkg ] ++ [ "-l" ++ opt | opt <- Installed.extraLibraries pkg ] ++ [ opt | opt <- Installed.ldOptions pkg ] ] ++ ["-o", outFile, inFile] hacked_index = packageHacks (installedPkgs lbi) -- Look only at the dependencies of the current component -- being built! This relies on 'installedPkgs' maintaining -- 'InstalledPackageInfo' for internal deps too; see #2971. pkgs = PackageIndex.topologicalOrder $ case PackageIndex.dependencyClosure hacked_index (map fst (componentPackageDeps clbi)) of Left index' -> index' Right inf -> error ("ppHsc2hs: broken closure: " ++ show inf) isOSX = case buildOS of OSX -> True; _ -> False isELF = case buildOS of OSX -> False; Windows -> False; AIX -> False; _ -> True; packageHacks = case compilerFlavor (compiler lbi) of GHC -> hackRtsPackage GHCJS -> hackRtsPackage _ -> id -- We don't link in the actual Haskell libraries of our dependencies, so -- the -u flags in the ldOptions of the rts package mean linking fails on -- OS X (its ld is a tad stricter than gnu ld). Thus we remove the -- ldOptions for GHC's rts package: hackRtsPackage index = case PackageIndex.lookupPackageName index (mkPackageName "rts") of [(_, [rts])] -> PackageIndex.insert rts { Installed.ldOptions = [] } index _ -> error "No (or multiple) ghc rts package is registered!!" ppHsc2hsExtras :: PreProcessorExtras ppHsc2hsExtras buildBaseDir = filter ("_hsc.c" `isSuffixOf`) `fmap` getDirectoryContentsRecursive buildBaseDir ppC2hs :: BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor ppC2hs bi lbi clbi = PreProcessor { platformIndependent = False, runPreProcessor = \(inBaseDir, inRelativeFile) (outBaseDir, outRelativeFile) verbosity -> do (c2hsProg, _, _) <- requireProgramVersion verbosity c2hsProgram (orLaterVersion (mkVersion [0,15])) (withPrograms lbi) (gccProg, _) <- requireProgram verbosity gccProgram (withPrograms lbi) runProgram verbosity c2hsProg $ -- Options from the current package: [ "--cpp=" ++ programPath gccProg, "--cppopts=-E" ] ++ [ "--cppopts=" ++ opt | opt <- getCppOptions bi lbi ] ++ [ "--cppopts=-include" ++ (autogenComponentModulesDir lbi clbi cppHeaderName) ] ++ [ "--include=" ++ outBaseDir ] -- Options from dependent packages ++ [ "--cppopts=" ++ opt | pkg <- pkgs , opt <- [ "-I" ++ opt | opt <- Installed.includeDirs pkg ] ++ [ opt | opt@('-':c:_) <- Installed.ccOptions pkg -- c2hs uses the C ABI -- We assume that there are only C sources -- and C++ functions are exported via a C -- interface and wrapped in a C source file. -- Therefore we do not supply C++ flags -- because there will not be C++ sources. -- -- -- DO NOT add Installed.cxxOptions unless this changes! , c `elem` "DIU" ] ] --TODO: install .chi files for packages, so we can --include -- those dirs here, for the dependencies -- input and output files ++ [ "--output-dir=" ++ outBaseDir , "--output=" ++ outRelativeFile , inBaseDir inRelativeFile ] } where pkgs = PackageIndex.topologicalOrder (installedPkgs lbi) ppC2hsExtras :: PreProcessorExtras ppC2hsExtras d = filter (\p -> takeExtensions p == ".chs.c") `fmap` getDirectoryContentsRecursive d --TODO: perhaps use this with hsc2hs too --TODO: remove cc-options from cpphs for cabal-version: >= 1.10 --TODO: Refactor and add separate getCppOptionsForHs, getCppOptionsForCxx, & getCppOptionsForC -- instead of combining all these cases in a single function. This blind combination can -- potentially lead to compilation inconsistencies. getCppOptions :: BuildInfo -> LocalBuildInfo -> [String] getCppOptions bi lbi = platformDefines lbi ++ cppOptions bi ++ ["-I" ++ dir | dir <- PD.includeDirs bi] ++ [opt | opt@('-':c:_) <- PD.ccOptions bi ++ PD.cxxOptions bi, c `elem` "DIU"] platformDefines :: LocalBuildInfo -> [String] platformDefines lbi = case compilerFlavor comp of GHC -> ["-D__GLASGOW_HASKELL__=" ++ versionInt version] ++ ["-D" ++ os ++ "_BUILD_OS=1"] ++ ["-D" ++ arch ++ "_BUILD_ARCH=1"] ++ map (\os' -> "-D" ++ os' ++ "_HOST_OS=1") osStr ++ map (\arch' -> "-D" ++ arch' ++ "_HOST_ARCH=1") archStr GHCJS -> compatGlasgowHaskell ++ ["-D__GHCJS__=" ++ versionInt version] ++ ["-D" ++ os ++ "_BUILD_OS=1"] ++ ["-D" ++ arch ++ "_BUILD_ARCH=1"] ++ map (\os' -> "-D" ++ os' ++ "_HOST_OS=1") osStr ++ map (\arch' -> "-D" ++ arch' ++ "_HOST_ARCH=1") archStr HaskellSuite {} -> ["-D__HASKELL_SUITE__"] ++ map (\os' -> "-D" ++ os' ++ "_HOST_OS=1") osStr ++ map (\arch' -> "-D" ++ arch' ++ "_HOST_ARCH=1") archStr _ -> [] where comp = compiler lbi Platform hostArch hostOS = hostPlatform lbi version = compilerVersion comp compatGlasgowHaskell = maybe [] (\v -> ["-D__GLASGOW_HASKELL__=" ++ versionInt v]) (compilerCompatVersion GHC comp) -- TODO: move this into the compiler abstraction -- FIXME: this forces GHC's crazy 4.8.2 -> 408 convention on all -- the other compilers. Check if that's really what they want. versionInt :: Version -> String versionInt v = case versionNumbers v of [] -> "1" [n] -> show n n1:n2:_ -> -- 6.8.x -> 608 -- 6.10.x -> 610 let s1 = show n1 s2 = show n2 middle = case s2 of _ : _ : _ -> "" _ -> "0" in s1 ++ middle ++ s2 osStr = case hostOS of Linux -> ["linux"] Windows -> ["mingw32"] OSX -> ["darwin"] FreeBSD -> ["freebsd"] OpenBSD -> ["openbsd"] NetBSD -> ["netbsd"] DragonFly -> ["dragonfly"] Solaris -> ["solaris2"] AIX -> ["aix"] HPUX -> ["hpux"] IRIX -> ["irix"] HaLVM -> [] IOS -> ["ios"] Android -> ["android"] Ghcjs -> ["ghcjs"] Hurd -> ["hurd"] OtherOS _ -> [] archStr = case hostArch of I386 -> ["i386"] X86_64 -> ["x86_64"] PPC -> ["powerpc"] PPC64 -> ["powerpc64"] Sparc -> ["sparc"] Arm -> ["arm"] AArch64 -> ["aarch64"] Mips -> ["mips"] SH -> [] IA64 -> ["ia64"] S390 -> ["s390"] Alpha -> ["alpha"] Hppa -> ["hppa"] Rs6000 -> ["rs6000"] M68k -> ["m68k"] Vax -> ["vax"] JavaScript -> ["javascript"] OtherArch _ -> [] ppHappy :: BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor ppHappy _ lbi _ = pp { platformIndependent = True } where pp = standardPP lbi happyProgram (hcFlags hc) hc = compilerFlavor (compiler lbi) hcFlags GHC = ["-agc"] hcFlags GHCJS = ["-agc"] hcFlags _ = [] ppAlex :: BuildInfo -> LocalBuildInfo -> ComponentLocalBuildInfo -> PreProcessor ppAlex _ lbi _ = pp { platformIndependent = True } where pp = standardPP lbi alexProgram (hcFlags hc) hc = compilerFlavor (compiler lbi) hcFlags GHC = ["-g"] hcFlags GHCJS = ["-g"] hcFlags _ = [] standardPP :: LocalBuildInfo -> Program -> [String] -> PreProcessor standardPP lbi prog args = PreProcessor { platformIndependent = False, runPreProcessor = mkSimplePreProcessor $ \inFile outFile verbosity -> runDbProgram verbosity prog (withPrograms lbi) (args ++ ["-o", outFile, inFile]) } -- |Convenience function; get the suffixes of these preprocessors. ppSuffixes :: [ PPSuffixHandler ] -> [String] ppSuffixes = map fst -- |Standard preprocessors: GreenCard, c2hs, hsc2hs, happy, alex and cpphs. knownSuffixHandlers :: [ PPSuffixHandler ] knownSuffixHandlers = [ ("gc", ppGreenCard) , ("chs", ppC2hs) , ("hsc", ppHsc2hs) , ("x", ppAlex) , ("y", ppHappy) , ("ly", ppHappy) , ("cpphs", ppCpp) ] -- |Standard preprocessors with possible extra C sources: c2hs, hsc2hs. knownExtrasHandlers :: [ PreProcessorExtras ] knownExtrasHandlers = [ ppC2hsExtras, ppHsc2hsExtras ] -- | Find any extra C sources generated by preprocessing that need to -- be added to the component (addresses issue #238). preprocessExtras :: Verbosity -> Component -> LocalBuildInfo -> IO [FilePath] preprocessExtras verbosity comp lbi = case comp of CLib _ -> pp $ buildDir lbi (CExe Executable { exeName = nm }) -> do let nm' = unUnqualComponentName nm pp $ buildDir lbi nm' nm' ++ "-tmp" (CFLib ForeignLib { foreignLibName = nm }) -> do let nm' = unUnqualComponentName nm pp $ buildDir lbi nm' nm' ++ "-tmp" CTest test -> do let nm' = unUnqualComponentName $ testName test case testInterface test of TestSuiteExeV10 _ _ -> pp $ buildDir lbi nm' nm' ++ "-tmp" TestSuiteLibV09 _ _ -> pp $ buildDir lbi stubName test stubName test ++ "-tmp" TestSuiteUnsupported tt -> die' verbosity $ "No support for preprocessing test " ++ "suite type " ++ display tt CBench bm -> do let nm' = unUnqualComponentName $ benchmarkName bm case benchmarkInterface bm of BenchmarkExeV10 _ _ -> pp $ buildDir lbi nm' nm' ++ "-tmp" BenchmarkUnsupported tt -> die' verbosity $ "No support for preprocessing benchmark " ++ "type " ++ display tt where pp :: FilePath -> IO [FilePath] pp dir = (map (dir ) . filter not_sub . concat) <$> for knownExtrasHandlers (withLexicalCallStack (\f -> f dir)) -- TODO: This is a terrible hack to work around #3545 while we don't -- reorganize the directory layout. Basically, for the main -- library, we might accidentally pick up autogenerated sources for -- our subcomponents, because they are all stored as subdirectories -- in dist/build. This is a cheap and cheerful check to prevent -- this from happening. It is not particularly correct; for example -- if a user has a test suite named foobar and puts their C file in -- foobar/foo.c, this test will incorrectly exclude it. But I -- didn't want to break BC... not_sub p = and [ not (pre `isPrefixOf` p) | pre <- component_dirs ] component_dirs = component_names (localPkgDescr lbi) -- TODO: libify me component_names pkg_descr = fmap unUnqualComponentName $ mapMaybe libName (subLibraries pkg_descr) ++ map exeName (executables pkg_descr) ++ map testName (testSuites pkg_descr) ++ map benchmarkName (benchmarks pkg_descr)