GhcLink(..), isNoLink,
PackageFlag(..),
Option(..),
+ DynLibLoader(..),
+ fFlags, xFlags,
-- Configuration of the core-to-core and stg-to-stg phases
CoreToDo(..),
#include "HsVersions.h"
-import Module ( Module, mkModuleName, mkModule, ModLocation )
+import Module
import PackageConfig
import PrelNames ( mAIN )
#ifdef i386_TARGET_ARCH
import Util ( split )
#endif
-import Data.Char ( isUpper )
+import Data.Char
+import System.FilePath
import System.IO ( hPutStrLn, stderr )
-- -----------------------------------------------------------------------------
| Opt_D_dump_rn
| Opt_D_dump_simpl
| Opt_D_dump_simpl_iterations
+ | Opt_D_dump_simpl_phases
| Opt_D_dump_spec
| Opt_D_dump_prep
| Opt_D_dump_stg
| Opt_D_dump_hi_diffs
| Opt_D_dump_minimal_imports
| Opt_D_dump_mod_cycles
+ | Opt_D_dump_view_pattern_commoning
| Opt_D_faststring_stats
| Opt_DumpToFile -- ^ Append dump output to files instead of stdout.
| Opt_DoCoreLinting
| Opt_PArr -- Syntactic support for parallel arrays
| Opt_Arrows -- Arrow-notation syntax
| Opt_TemplateHaskell
+ | Opt_QuasiQuotes
| Opt_ImplicitParams
| Opt_Generics
| Opt_ImplicitPrelude
| Opt_DisambiguateRecordFields
| Opt_RecordWildCards
| Opt_RecordPuns
+ | Opt_ViewPatterns
| Opt_GADTs
| Opt_RelaxedPolyRec
| Opt_StandaloneDeriving
| Opt_KindSignatures
| Opt_PatternSignatures
| Opt_ParallelListComp
+ | Opt_TransformListComp
| Opt_GeneralizedNewtypeDeriving
| Opt_RecursiveDo
| Opt_PatternGuards
| Opt_LiberalTypeSynonyms
| Opt_Rank2Types
| Opt_RankNTypes
+ | Opt_ImpredicativeTypes
| Opt_TypeOperators
| Opt_PrintExplicitForalls
| Opt_OmitInterfacePragmas
| Opt_DoLambdaEtaExpansion
| Opt_IgnoreAsserts
- | Opt_IgnoreBreakpoints
| Opt_DoEtaReduction
| Opt_CaseMerge
| Opt_UnboxStrictFields
| Opt_HideAllPackages
| Opt_PrintBindResult
| Opt_Haddock
+ | Opt_HaddockOptions
| Opt_Hpc_No_Auto
| Opt_BreakOnException
| Opt_BreakOnError
| Opt_PrintEvldWithShow
+ | Opt_PrintBindContents
| Opt_GenManifest
| Opt_EmbedManifest
| Opt_RunCPSZ
extCoreName :: String, -- name of the .core output file
verbosity :: Int, -- verbosity level
optLevel :: Int, -- optimisation level
+ simplPhases :: Int, -- number of simplifier phases
maxSimplIterations :: Int, -- max simplifier iterations
ruleCheck :: Maybe String,
- specThreshold :: Int, -- Threshold for function specialisation
+ specConstrThreshold :: Maybe Int, -- Threshold for SpecConstr
+ liberateCaseThreshold :: Maybe Int, -- Threshold for LiberateCase
stolen_x86_regs :: Int,
cmdlineHcIncludes :: [String], -- -#includes
outputFile :: Maybe String,
outputHi :: Maybe String,
+ dynLibLoader :: DynLibLoader,
-- | This is set by DriverPipeline.runPipeline based on where
-- its output is going.
-- Package state
-- NB. do not modify this field, it is calculated by
-- Packages.initPackages and Packages.updatePackages.
- pkgDatabase :: Maybe (UniqFM InstalledPackageInfo),
+ pkgDatabase :: Maybe (UniqFM PackageConfig),
pkgState :: PackageState,
-- hsc dynamic flags
flags :: [DynFlag],
-- message output
- log_action :: Severity -> SrcSpan -> PprStyle -> Message -> IO ()
+ log_action :: Severity -> SrcSpan -> PprStyle -> Message -> IO (),
+
+ haddockOptions :: Maybe String
}
data HscTarget
| LinkBinary -- Link object code into a binary
| LinkInMemory -- Use the in-memory dynamic linker
| LinkDynLib -- Link objects into a dynamic lib (DLL on Windows, DSO on ELF platforms)
- deriving Eq
+ deriving (Eq, Show)
isNoLink :: GhcLink -> Bool
isNoLink NoLink = True
| cGhcWithNativeCodeGen == "YES" = HscAsm
| otherwise = HscC
+data DynLibLoader
+ = Deployable
+ | Wrapped (Maybe String)
+ | SystemDependent
+ deriving Eq
+
initDynFlags dflags = do
-- someday these will be dynamic flags
ways <- readIORef v_Ways
extCoreName = "",
verbosity = 0,
optLevel = 0,
+ simplPhases = 2,
maxSimplIterations = 4,
ruleCheck = Nothing,
- specThreshold = 200,
+ specConstrThreshold = Just 200,
+ liberateCaseThreshold = Just 200,
stolen_x86_regs = 4,
cmdlineHcIncludes = [],
importPaths = ["."],
outputFile = Nothing,
outputHi = Nothing,
+ dynLibLoader = Deployable,
dumpPrefix = Nothing,
dumpPrefixForce = Nothing,
includePaths = [],
packageFlags = [],
pkgDatabase = Nothing,
pkgState = panic "no package state yet: call GHC.setSessionDynFlags",
- flags = [
- Opt_ReadUserPackageConf,
-
- Opt_MonoPatBinds, -- Experimentally, I'm making this non-standard
- -- behaviour the default, to see if anyone notices
- -- SLPJ July 06
+ haddockOptions = Nothing,
+ flags = [
+ Opt_ReadUserPackageConf,
- Opt_ImplicitPrelude,
- Opt_MonomorphismRestriction,
+ Opt_MonoPatBinds, -- Experimentally, I'm making this non-standard
+ -- behaviour the default, to see if anyone notices
+ -- SLPJ July 06
+
+ Opt_ImplicitPrelude,
+ Opt_MonomorphismRestriction,
+
+ Opt_DoAsmMangling,
- Opt_DoAsmMangling,
-
Opt_GenManifest,
Opt_EmbedManifest,
+ Opt_PrintBindContents
+ ]
+ ++ [f | (ns,f) <- optLevelFlags, 0 `elem` ns]
+ -- The default -O0 options
+ ++ standardWarnings,
- -- on by default:
- Opt_PrintBindResult ]
- ++ [f | (ns,f) <- optLevelFlags, 0 `elem` ns]
- -- The default -O0 options
- ++ standardWarnings,
-
log_action = \severity srcSpan style msg ->
case severity of
SevInfo -> hPutStrLn stderr (show (msg style))
setOutputFile f d = d{ outputFile = f}
setOutputHi f d = d{ outputHi = f}
+parseDynLibLoaderMode f d =
+ case splitAt 8 f of
+ ("deploy", "") -> d{ dynLibLoader = Deployable }
+ ("sysdep", "") -> d{ dynLibLoader = SystemDependent }
+ ("wrapped", "") -> d{ dynLibLoader = Wrapped Nothing }
+ ("wrapped:", "hard") -> d{ dynLibLoader = Wrapped Nothing }
+ ("wrapped:", flex) -> d{ dynLibLoader = Wrapped (Just flex) }
+ (_,_) -> error "Unknown dynlib loader"
+
setDumpPrefixForce f d = d { dumpPrefixForce = f}
-- XXX HACK: Prelude> words "'does not' work" ===> ["'does","not'","work"]
addCmdlineFramework f d = d{ cmdlineFrameworks = f : cmdlineFrameworks d}
+addHaddockOpts f d = d{ haddockOptions = Just f}
+
-- -----------------------------------------------------------------------------
-- Command-line options
runWhen True do_this = do_this
runWhen False do_this = CoreDoNothing
+runMaybe :: Maybe a -> (a -> CoreToDo) -> CoreToDo
+runMaybe (Just x) f = f x
+runMaybe Nothing _ = CoreDoNothing
+
getCoreToDo :: DynFlags -> [CoreToDo]
getCoreToDo dflags
| Just todo <- coreToDo dflags = todo -- set explicitly by user
| otherwise = core_todo
where
opt_level = optLevel dflags
+ phases = simplPhases dflags
max_iter = maxSimplIterations dflags
strictness = dopt Opt_Strictness dflags
full_laziness = dopt Opt_FullLaziness dflags
rule_check = ruleCheck dflags
vectorisation = dopt Opt_Vectorise dflags
- core_todo =
- if opt_level == 0 then
- [
- CoreDoSimplify (SimplPhase 0) [
- MaxSimplifierIterations max_iter
- ]
- ]
- else {- opt_level >= 1 -} [
+ maybe_rule_check phase = runMaybe rule_check (CoreDoRuleCheck phase)
+
+ simpl_phase phase iter = CoreDoPasses
+ [ CoreDoSimplify (SimplPhase phase) [
+ MaxSimplifierIterations iter
+ ],
+ maybe_rule_check phase
+ ]
+
+ -- By default, we have 2 phases before phase 0.
+
+ -- Want to run with inline phase 2 after the specialiser to give
+ -- maximum chance for fusion to work before we inline build/augment
+ -- in phase 1. This made a difference in 'ansi' where an
+ -- overloaded function wasn't inlined till too late.
+
+ -- Need phase 1 so that build/augment get
+ -- inlined. I found that spectral/hartel/genfft lost some useful
+ -- strictness in the function sumcode' if augment is not inlined
+ -- before strictness analysis runs
+ simpl_phases = CoreDoPasses [ simpl_phase phase max_iter
+ | phase <- [phases, phases-1 .. 1] ]
+
-- initial simplify: mk specialiser happy: minimum effort please
- CoreDoSimplify SimplGently [
+ simpl_gently = CoreDoSimplify SimplGently [
-- Simplify "gently"
-- Don't inline anything till full laziness has bitten
-- In particular, inlining wrappers inhibits floating
NoCaseOfCase, -- Don't do case-of-case transformations.
-- This makes full laziness work better
MaxSimplifierIterations max_iter
- ],
+ ]
+ core_todo =
+ if opt_level == 0 then
+ [simpl_phase 0 max_iter]
+ else {- opt_level >= 1 -} [
+
+ -- initial simplify: mk specialiser happy: minimum effort please
+ simpl_gently,
-- We run vectorisation here for now, but we might also try to run
-- it later
- runWhen vectorisation (CoreDoPasses [
- CoreDoVectorisation,
- CoreDoSimplify SimplGently
- [NoCaseOfCase,
- MaxSimplifierIterations max_iter]]),
+ runWhen vectorisation (CoreDoPasses [ CoreDoVectorisation, simpl_gently ]),
-- Specialisation is best done before full laziness
-- so that overloaded functions have all their dictionary lambdas manifest
CoreDoFloatInwards,
- CoreDoSimplify (SimplPhase 2) [
- -- Want to run with inline phase 2 after the specialiser to give
- -- maximum chance for fusion to work before we inline build/augment
- -- in phase 1. This made a difference in 'ansi' where an
- -- overloaded function wasn't inlined till too late.
- MaxSimplifierIterations max_iter
- ],
- case rule_check of { Just pat -> CoreDoRuleCheck 2 pat; Nothing -> CoreDoNothing },
+ simpl_phases,
- CoreDoSimplify (SimplPhase 1) [
- -- Need inline-phase2 here so that build/augment get
- -- inlined. I found that spectral/hartel/genfft lost some useful
- -- strictness in the function sumcode' if augment is not inlined
- -- before strictness analysis runs
- MaxSimplifierIterations max_iter
- ],
- case rule_check of { Just pat -> CoreDoRuleCheck 1 pat; Nothing -> CoreDoNothing },
-
- CoreDoSimplify (SimplPhase 0) [
-- Phase 0: allow all Ids to be inlined now
-- This gets foldr inlined before strictness analysis
- MaxSimplifierIterations 3
-- At least 3 iterations because otherwise we land up with
-- huge dead expressions because of an infelicity in the
-- simpifier.
-- ==> let k = BIG in letrec go = \xs -> ...(k x).... in go xs
-- ==> let k = BIG in letrec go = \xs -> ...(BIG x).... in go xs
-- Don't stop now!
+ simpl_phase 0 (max max_iter 3),
- ],
- case rule_check of { Just pat -> CoreDoRuleCheck 0 pat; Nothing -> CoreDoNothing },
#ifdef OLD_STRICTNESS
CoreDoOldStrictness,
CoreDoStrictness,
CoreDoWorkerWrapper,
CoreDoGlomBinds,
- CoreDoSimplify (SimplPhase 0) [
- MaxSimplifierIterations max_iter
- ]]),
+ simpl_phase 0 max_iter
+ ]),
runWhen full_laziness
(CoreDoFloatOutwards (FloatOutSw False -- Not lambdas
CoreDoFloatInwards,
- case rule_check of { Just pat -> CoreDoRuleCheck 0 pat; Nothing -> CoreDoNothing },
+ maybe_rule_check 0,
-- Case-liberation for -O2. This should be after
-- strictness analysis and the simplification which follows it.
runWhen liberate_case (CoreDoPasses [
CoreLiberateCase,
- CoreDoSimplify (SimplPhase 0) [
- MaxSimplifierIterations max_iter
- ] ]), -- Run the simplifier after LiberateCase to vastly
+ simpl_phase 0 max_iter
+ ]), -- Run the simplifier after LiberateCase to vastly
-- reduce the possiblility of shadowing
-- Reason: see Note [Shadowing] in SpecConstr.lhs
runWhen spec_constr CoreDoSpecConstr,
+ maybe_rule_check 0,
+
-- Final clean-up simplification:
- CoreDoSimplify (SimplPhase 0) [
- MaxSimplifierIterations max_iter
- ]
+ simpl_phase 0 max_iter
]
-- -----------------------------------------------------------------------------
allFlags = map ('-':) $
[ name | (name, optkind) <- dynamic_flags, ok optkind ] ++
map ("fno-"++) flags ++
- map ("f"++) flags
+ map ("f"++) flags ++
+ map ("X"++) xs ++
+ map ("XNo"++) xs
where ok (PrefixPred _ _) = False
ok _ = True
flags = map fst fFlags
+ xs = map fst xFlags
dynamic_flags :: [(String, OptKind DynP)]
dynamic_flags = [
, ( "c" , NoArg (upd $ \d -> d{ ghcLink=NoLink } ))
, ( "no-link" , NoArg (upd $ \d -> d{ ghcLink=NoLink } )) -- Dep.
, ( "shared" , NoArg (upd $ \d -> d{ ghcLink=LinkDynLib } ))
+ , ( "dynload" , HasArg (upd . parseDynLibLoaderMode))
------- Libraries ---------------------------------------------------
, ( "L" , Prefix addLibraryPath )
, ( "no-hs-main" , NoArg (setDynFlag Opt_NoHsMain))
, ( "main-is" , SepArg setMainIs )
, ( "haddock" , NoArg (setDynFlag Opt_Haddock) )
+ , ( "haddock-opts" , HasArg (upd . addHaddockOpts))
, ( "hpcdir" , SepArg setOptHpcDir )
------- recompilation checker (DEPRECATED, use -fforce-recomp) -----
, ( "ddump-rn", setDumpFlag Opt_D_dump_rn)
, ( "ddump-simpl", setDumpFlag Opt_D_dump_simpl)
, ( "ddump-simpl-iterations", setDumpFlag Opt_D_dump_simpl_iterations)
+ , ( "ddump-simpl-phases", setDumpFlag Opt_D_dump_simpl_phases)
, ( "ddump-spec", setDumpFlag Opt_D_dump_spec)
, ( "ddump-prep", setDumpFlag Opt_D_dump_prep)
, ( "ddump-stg", setDumpFlag Opt_D_dump_stg)
, ( "ddump-vect", setDumpFlag Opt_D_dump_vect)
, ( "ddump-hpc", setDumpFlag Opt_D_dump_hpc)
, ( "ddump-mod-cycles", setDumpFlag Opt_D_dump_mod_cycles)
+ , ( "ddump-view-pattern-commoning", setDumpFlag Opt_D_dump_view_pattern_commoning)
, ( "ddump-to-file", setDumpFlag Opt_DumpToFile)
, ( "ddump-hi-diffs", NoArg (setDynFlag Opt_D_dump_hi_diffs))
, ( "dcore-lint", NoArg (setDynFlag Opt_DoCoreLinting))
, ( "O" , OptIntSuffix (\mb_n -> upd (setOptLevel (mb_n `orElse` 1))))
-- If the number is missing, use 1
+ , ( "fsimplifier-phases", IntSuffix (\n ->
+ upd (\dfs -> dfs{ simplPhases = n })) )
, ( "fmax-simplifier-iterations", IntSuffix (\n ->
upd (\dfs -> dfs{ maxSimplIterations = n })) )
- -- liberate-case-threshold is an old flag for '-fspec-threshold'
- , ( "fspec-threshold", IntSuffix (\n -> upd (\dfs -> dfs{ specThreshold = n })))
- , ( "fliberate-case-threshold", IntSuffix (\n -> upd (\dfs -> dfs{ specThreshold = n })))
+ , ( "fspec-constr-threshold", IntSuffix (\n ->
+ upd (\dfs -> dfs{ specConstrThreshold = Just n })))
+ , ( "fno-spec-constr-threshold", NoArg (
+ upd (\dfs -> dfs{ specConstrThreshold = Nothing })))
+ , ( "fliberate-case-threshold", IntSuffix (\n ->
+ upd (\dfs -> dfs{ liberateCaseThreshold = Just n })))
+ , ( "fno-liberate-case-threshold", NoArg (
+ upd (\dfs -> dfs{ liberateCaseThreshold = Nothing })))
- , ( "frule-check", SepArg (\s -> upd (\dfs -> dfs{ ruleCheck = Just s })))
+ , ( "frule-check", SepArg (\s -> upd (\dfs -> dfs{ ruleCheck = Just s })))
, ( "fcontext-stack" , IntSuffix $ \n -> upd $ \dfs -> dfs{ ctxtStkDepth = n })
------ Compiler flags -----------------------------------------------
( "omit-interface-pragmas", Opt_OmitInterfacePragmas ),
( "do-lambda-eta-expansion", Opt_DoLambdaEtaExpansion ),
( "ignore-asserts", Opt_IgnoreAsserts ),
- ( "ignore-breakpoints", Opt_IgnoreBreakpoints),
( "do-eta-reduction", Opt_DoEtaReduction ),
( "case-merge", Opt_CaseMerge ),
( "unbox-strict-fields", Opt_UnboxStrictFields ),
( "break-on-exception", Opt_BreakOnException ),
( "break-on-error", Opt_BreakOnError ),
( "print-evld-with-show", Opt_PrintEvldWithShow ),
+ ( "print-bind-contents", Opt_PrintBindContents ),
( "run-cps", Opt_RunCPSZ ),
( "convert-to-zipper-and-back", Opt_ConvertToZipCfgAndBack),
( "vectorise", Opt_Vectorise ),
( "PatternSignatures", Opt_PatternSignatures ),
( "EmptyDataDecls", Opt_EmptyDataDecls ),
( "ParallelListComp", Opt_ParallelListComp ),
+ ( "TransformListComp", Opt_TransformListComp ),
( "ForeignFunctionInterface", Opt_ForeignFunctionInterface ),
( "UnliftedFFITypes", Opt_UnliftedFFITypes ),
( "LiberalTypeSynonyms", Opt_LiberalTypeSynonyms ),
( "Rank2Types", Opt_Rank2Types ),
( "RankNTypes", Opt_RankNTypes ),
+ ( "ImpredicativeTypes", Opt_ImpredicativeTypes ),
( "TypeOperators", Opt_TypeOperators ),
( "RecursiveDo", Opt_RecursiveDo ),
( "Arrows", Opt_Arrows ),
( "PArr", Opt_PArr ),
( "TemplateHaskell", Opt_TemplateHaskell ),
+ ( "QuasiQuotes", Opt_QuasiQuotes ),
( "Generics", Opt_Generics ),
-- On by default:
( "ImplicitPrelude", Opt_ImplicitPrelude ),
( "DisambiguateRecordFields", Opt_DisambiguateRecordFields ),
( "OverloadedStrings", Opt_OverloadedStrings ),
( "GADTs", Opt_GADTs ),
+ ( "ViewPatterns", Opt_ViewPatterns),
( "TypeFamilies", Opt_TypeFamilies ),
( "BangPatterns", Opt_BangPatterns ),
-- On by default:
impliedFlags :: [(DynFlag, [DynFlag])]
impliedFlags = [
- ( Opt_GADTs, [Opt_RelaxedPolyRec] ) -- We want type-sig variables to be completely rigid for GADTs
+ ( Opt_GADTs, [Opt_RelaxedPolyRec] ) -- We want type-sig variables to
+ -- be completely rigid for GADTs
+ , ( Opt_ScopedTypeVariables, [Opt_RelaxedPolyRec] ) -- Ditto for scoped type variables; see
+ -- Note [Scoped tyvars] in TcBinds
]
glasgowExtsFlags = [
Opt_PrintExplicitForalls
, Opt_ForeignFunctionInterface
, Opt_UnliftedFFITypes
- , Opt_GADTs
- , Opt_ImplicitParams
- , Opt_ScopedTypeVariables
+ , Opt_GADTs
+ , Opt_ImplicitParams
+ , Opt_ScopedTypeVariables
, Opt_UnboxedTuples
, Opt_TypeSynonymInstances
, Opt_StandaloneDeriving
, Opt_ConstrainedClassMethods
, Opt_MultiParamTypeClasses
, Opt_FunctionalDependencies
- , Opt_MagicHash
+ , Opt_MagicHash
, Opt_PolymorphicComponents
, Opt_ExistentialQuantification
, Opt_UnicodeSyntax
, Opt_PatternGuards
, Opt_LiberalTypeSynonyms
, Opt_RankNTypes
+ , Opt_ImpredicativeTypes
, Opt_TypeOperators
, Opt_RecursiveDo
, Opt_ParallelListComp
, Opt_KindSignatures
, Opt_PatternSignatures
, Opt_GeneralizedNewtypeDeriving
- , Opt_TypeFamilies ]
+ , Opt_TypeFamilies ]
------------------
isFlag :: [(String,a)] -> String -> Bool
setMainIs :: String -> DynP ()
setMainIs arg
- | not (null main_fn) -- The arg looked like "Foo.baz"
+ | not (null main_fn) && isLower (head main_fn)
+ -- The arg looked like "Foo.Bar.baz"
= upd $ \d -> d{ mainFunIs = Just main_fn,
- mainModIs = mkModule mainPackageId (mkModuleName main_mod) }
+ mainModIs = mkModule mainPackageId (mkModuleName main_mod) }
- | isUpper (head main_mod) -- The arg looked like "Foo"
- = upd $ \d -> d{ mainModIs = mkModule mainPackageId (mkModuleName main_mod) }
+ | isUpper (head arg) -- The arg looked like "Foo" or "Foo.Bar"
+ = upd $ \d -> d{ mainModIs = mkModule mainPackageId (mkModuleName arg) }
| otherwise -- The arg looked like "baz"
- = upd $ \d -> d{ mainFunIs = Just main_mod }
+ = upd $ \d -> d{ mainFunIs = Just arg }
where
(main_mod, main_fn) = splitLongestPrefix arg (== '.')
setTmpDir dir dflags = dflags{ tmpDir = canonicalise dir }
where
#if !defined(mingw32_HOST_OS)
- canonicalise p = normalisePath p
+ canonicalise p = normalise p
#else
- -- Canonicalisation of temp path under win32 is a bit more
- -- involved: (a) strip trailing slash,
- -- (b) normalise slashes
- -- (c) just in case, if there is a prefix /cygdrive/x/, change to x:
- --
- canonicalise path = normalisePath (xltCygdrive (removeTrailingSlash path))
-
- -- if we're operating under cygwin, and TMP/TEMP is of
- -- the form "/cygdrive/drive/path", translate this to
- -- "drive:/path" (as GHC isn't a cygwin app and doesn't
- -- understand /cygdrive paths.)
- xltCygdrive path
- | "/cygdrive/" `isPrefixOf` path =
- case drop (length "/cygdrive/") path of
- drive:xs@('/':_) -> drive:':':xs
- _ -> path
- | otherwise = path
-
- -- strip the trailing backslash (awful, but we only do this once).
- removeTrailingSlash path =
- case last path of
- '/' -> init path
- '\\' -> init path
- _ -> path
+ -- Canonicalisation of temp path under win32 is a bit more
+ -- involved: (a) strip trailing slash,
+ -- (b) normalise slashes
+ -- (c) just in case, if there is a prefix /cygdrive/x/, change to x:
+ canonicalise path = removeTrailingSlash $ normalise $ xltCygdrive path
+
+ -- if we're operating under cygwin, and TMP/TEMP is of
+ -- the form "/cygdrive/drive/path", translate this to
+ -- "drive:/path" (as GHC isn't a cygwin app and doesn't
+ -- understand /cygdrive paths.)
+ cygdrivePrefix = [pathSeparator] ++ "/cygdrive/" ++ [pathSeparator]
+ xltCygdrive path = case maybePrefixMatch cygdrivePrefix path of
+ Just (drive:sep:xs)
+ | isPathSeparator sep -> drive:':':pathSeparator:xs
+ _ -> path
+
+ -- strip the trailing backslash (awful, but we only do this once).
+ removeTrailingSlash path
+ | isPathSeparator (last path) = init path
+ | otherwise = path
#endif
-----------------------------------------------------------------------------
projects / ghc-hetmet.git / blobdiff