--- ----------------------------------------------------------------------------
--- Loading the package config file
-
-readPackageConf :: String -> IO ()
-readPackageConf conf_file = do
- proto_pkg_configs <- loadPackageConfig conf_file
- top_dir <- getTopDir
- let pkg_configs = mungePackagePaths top_dir proto_pkg_configs
- extendPackageConfigMap pkg_configs
-
-mungePackagePaths :: String -> [PackageConfig] -> [PackageConfig]
--- Replace the string "$libdir" at the beginning of a path
--- with the current libdir (obtained from the -B option).
-mungePackagePaths top_dir ps = map munge_pkg ps
- where
- munge_pkg p = p{ import_dirs = munge_paths (import_dirs p),
- include_dirs = munge_paths (include_dirs p),
- library_dirs = munge_paths (library_dirs p),
- framework_dirs = munge_paths (framework_dirs p) }
-
- munge_paths = map munge_path
-
- munge_path p
- | Just p' <- maybePrefixMatch "$libdir" p = top_dir ++ p'
- | otherwise = p
-
-
--- -----------------------------------------------------------------------------
--- The list of packages requested on the command line
-
--- The package list reflects what packages were given as command-line options,
--- plus their dependent packages. It is maintained in dependency order;
--- earlier packages may depend on later ones, but not vice versa
-GLOBAL_VAR(v_ExplicitPackages, initPackageList, [PackageName])
-
-initPackageList = [basePackage, rtsPackage]
- -- basePackage is part of this list entirely because of
- -- wired-in names in GHCi. See the notes on wired-in names in
- -- Linker.linkExpr. By putting the base backage in initPackageList
- -- we make sure that it'll always by linked.
-
-
--- add a package requested from the command-line
-addPackage :: String -> IO ()
-addPackage package = do
- pkg_details <- getPackageConfigMap
- ps <- readIORef v_ExplicitPackages
- ps' <- add_package pkg_details ps (mkPackageName package)
- -- Throws an exception if it fails
- writeIORef v_ExplicitPackages ps'
-
--- internal helper
-add_package :: PackageConfigMap -> [PackageName]
- -> PackageName -> IO [PackageName]
-add_package pkg_details ps p
- | p `elem` ps -- Check if we've already added this package
- = return ps
- | Just details <- lookupPkg pkg_details p
- -- Add the package's dependents also
- = do ps' <- foldM (add_package pkg_details) ps (packageDependents details)
- return (p : ps')
- | otherwise
- = throwDyn (CmdLineError ("unknown package name: " ++ packageNameString p))
-
-
--- -----------------------------------------------------------------------------
--- Extracting information from the packages in scope
-
--- Many of these functions take a list of packages: in those cases,
--- the list is expected to contain the "dependent packages",
--- i.e. those packages that were found to be depended on by the
--- current module/program. These can be auto or non-auto packages, it
--- doesn't really matter. The list is always combined with the list
--- of explicit (command-line) packages to determine which packages to
--- use.
-
-getPackageImportPath :: IO [String]
-getPackageImportPath = do
- ps <- getExplicitAndAutoPackageConfigs
- -- import dirs are always derived from the 'auto'
- -- packages as well as the explicit ones
- return (nub (filter notNull (concatMap import_dirs ps)))
-
-getPackageIncludePath :: [PackageName] -> IO [String]
-getPackageIncludePath pkgs = do
- ps <- getExplicitPackagesAnd pkgs
- return (nub (filter notNull (concatMap include_dirs ps)))
-
- -- includes are in reverse dependency order (i.e. rts first)
-getPackageCIncludes :: [PackageConfig] -> IO [String]
-getPackageCIncludes pkg_configs = do
- return (reverse (nub (filter notNull (concatMap c_includes pkg_configs))))
-
-getPackageLibraryPath :: [PackageName] -> IO [String]
-getPackageLibraryPath pkgs = do
- ps <- getExplicitPackagesAnd pkgs
- return (nub (filter notNull (concatMap library_dirs ps)))
-
-getPackageLinkOpts :: [PackageName] -> IO [String]
-getPackageLinkOpts pkgs = do
- ps <- getExplicitPackagesAnd pkgs
- tag <- readIORef v_Build_tag
- static <- readIORef v_Static
- let
- imp = if static then "" else "_imp"
- suffix = if null tag then "" else '_':tag
- libs p = map (++suffix) (hACK (hs_libraries p)) ++ extra_libraries p
- imp_libs p = map (++imp) (libs p)
- all_opts p = map ("-l" ++) (imp_libs p) ++ extra_ld_opts p
-
- return (concat (map all_opts ps))
- where
- -- This is a totally horrible (temporary) hack, for Win32. Problem is
- -- that package.conf for Win32 says that the main prelude lib is
- -- split into HSbase1, HSbase2 and HSbase3, which is needed due to a bug
- -- in the GNU linker (PEi386 backend). However, we still only
- -- have HSbase.a for static linking, not HSbase{1,2,3}.a
- -- getPackageLibraries is called to find the .a's to add to the static
- -- link line. On Win32, this hACK detects HSbase{1,2,3} and
- -- replaces them with HSbase, so static linking still works.
- -- Libraries needed for dynamic (GHCi) linking are discovered via
- -- different route (in InteractiveUI.linkPackage).
- -- See driver/PackageSrc.hs for the HSbase1/HSbase2 split definition.
- -- THIS IS A STRICTLY TEMPORARY HACK (famous last words ...)
- -- JRS 04 Sept 01: Same appalling hack for HSwin32[1,2]
- -- KAA 29 Mar 02: Same appalling hack for HSobjectio[1,2,3,4]
- hACK libs
-# if !defined(mingw32_TARGET_OS) && !defined(cygwin32_TARGET_OS)
- = libs
-# else
- = if "HSbase1" `elem` libs && "HSbase2" `elem` libs && "HSbase3" `elem` libs
- then "HSbase" : filter (not.(isPrefixOf "HSbase")) libs
- else
- if "HSwin321" `elem` libs && "HSwin322" `elem` libs
- then "HSwin32" : filter (not.(isPrefixOf "HSwin32")) libs
- else
- if "HSobjectio1" `elem` libs && "HSobjectio2" `elem` libs && "HSobjectio3" `elem` libs && "HSobjectio4" `elem` libs
- then "HSobjectio" : filter (not.(isPrefixOf "HSobjectio")) libs
- else
- libs
-# endif
-
-getPackageExtraGhcOpts :: IO [String]
-getPackageExtraGhcOpts = do
- ps <- getExplicitAndAutoPackageConfigs
- return (concatMap extra_ghc_opts ps)
-
-getPackageExtraCcOpts :: [PackageName] -> IO [String]
-getPackageExtraCcOpts pkgs = do
- ps <- getExplicitPackagesAnd pkgs
- return (concatMap extra_cc_opts ps)
-
-#ifdef darwin_TARGET_OS
-getPackageFrameworkPath :: [PackageName] -> IO [String]
-getPackageFrameworkPath pkgs = do
- ps <- getExplicitPackagesAnd pkgs
- return (nub (filter notNull (concatMap framework_dirs ps)))
-
-getPackageFrameworks :: [PackageName] -> IO [String]
-getPackageFrameworks pkgs = do
- ps <- getExplicitPackagesAnd pkgs
- return (concatMap extra_frameworks ps)
-#endif
-
--- -----------------------------------------------------------------------------
--- Package Utils
-
-getExplicitPackagesAnd :: [PackageName] -> IO [PackageConfig]
-getExplicitPackagesAnd pkg_names = do
- pkg_map <- getPackageConfigMap
- expl <- readIORef v_ExplicitPackages
- all_pkgs <- foldM (add_package pkg_map) expl pkg_names
- getPackageDetails all_pkgs
-
--- return all packages, including both the auto packages and the explicit ones
-getExplicitAndAutoPackageConfigs :: IO [PackageConfig]
-getExplicitAndAutoPackageConfigs = do
- pkg_map <- getPackageConfigMap
- let auto_packages = [ mkPackageName (name p) | p <- eltsUFM pkg_map, auto p ]
- getExplicitPackagesAnd auto_packages
-