import Compat.Directory ( getAppUserDataDirectory )
#endif
+import System.Environment ( getEnv )
import Distribution.InstalledPackageInfo
import Distribution.Package
import Distribution.Version
-import Data.Maybe ( isNothing )
-import System.Directory ( doesFileExist )
+import System.Directory ( doesFileExist, doesDirectoryExist,
+ getDirectoryContents )
import Control.Monad ( foldM )
-import Data.List ( nub, partition, sortBy )
-
-#ifdef mingw32_TARGET_OS
-import Data.List ( isPrefixOf )
-#endif
-import Data.List ( isSuffixOf )
-
+import Data.List ( nub, partition, sortBy, isSuffixOf )
import FastString
import EXCEPTION ( throwDyn )
import ErrUtils ( debugTraceMsg, putMsg, Message )
readPackageConfigs :: DynFlags -> IO PackageConfigMap
readPackageConfigs dflags = do
+ e_pkg_path <- try (getEnv "GHC_PACKAGE_PATH")
+ system_pkgconfs <- getSystemPackageConfigs dflags
+
+ let pkgconfs = case e_pkg_path of
+ Left _ -> system_pkgconfs
+ Right path
+ | last cs == "" -> init cs ++ system_pkgconfs
+ | otherwise -> cs
+ where cs = parseSearchPath path
+ -- if the path ends in a separator (eg. "/foo/bar:")
+ -- the we tack on the system paths.
+
+ -- Read all the ones mentioned in -package-conf flags
+ pkg_map <- foldM (readPackageConfig dflags) emptyPackageConfigMap
+ (reverse pkgconfs ++ extraPkgConfs dflags)
+
+ return pkg_map
+
+
+getSystemPackageConfigs :: DynFlags -> IO [FilePath]
+getSystemPackageConfigs dflags = do
-- System one always comes first
system_pkgconf <- getPackageConfigPath
- pkg_map1 <- readPackageConfig dflags emptyPackageConfigMap system_pkgconf
+
+ -- allow package.conf.d to contain a bunch of .conf files
+ -- containing package specifications. This is an easier way
+ -- to maintain the package database on systems with a package
+ -- management system, or systems that don't want to run ghc-pkg
+ -- to register or unregister packages. Undocumented feature for now.
+ let system_pkgconf_dir = system_pkgconf ++ ".d"
+ system_pkgconf_dir_exists <- doesDirectoryExist system_pkgconf_dir
+ system_pkgconfs <-
+ if system_pkgconf_dir_exists
+ then do files <- getDirectoryContents system_pkgconf_dir
+ return [ system_pkgconf_dir ++ '/' : file
+ | file <- files
+ , isSuffixOf ".conf" file]
+ else return []
-- Read user's package conf (eg. ~/.ghc/i386-linux-6.3/package.conf)
-- unless the -no-user-package-conf flag was given.
-- We only do this when getAppUserDataDirectory is available
-- (GHC >= 6.3).
- (exists, pkgconf) <- catch (do
+ user_pkgconf <- handle (\_ -> return []) $ do
appdir <- getAppUserDataDirectory "ghc"
let
pkgconf = appdir
`joinFileName` (TARGET_ARCH ++ '-':TARGET_OS ++ '-':cProjectVersion)
`joinFileName` "package.conf"
flg <- doesFileExist pkgconf
- return (flg, pkgconf))
- -- gobble them all up and turn into False.
- (\ _ -> return (False, ""))
- pkg_map2 <- if (dopt Opt_ReadUserPackageConf dflags && exists)
- then readPackageConfig dflags pkg_map1 pkgconf
- else return pkg_map1
-
- -- Read all the ones mentioned in -package-conf flags
- pkg_map <- foldM (readPackageConfig dflags) pkg_map2
- (extraPkgConfs dflags)
+ if (flg && dopt Opt_ReadUserPackageConf dflags)
+ then return [pkgconf]
+ else return []
- return pkg_map
+ return (user_pkgconf ++ system_pkgconfs ++ [system_pkgconf])
readPackageConfig
rts_tag = rtsBuildTag dflags
let
imp = if opt_Static then "" else "_dyn"
- libs p = map ((++imp) . addSuffix) (hACK (hsLibraries p))
+ libs p = map ((++imp) . addSuffix) (hsLibraries p)
++ hACK_dyn (extraLibraries p)
all_opts p = map ("-l" ++) (libs p) ++ ldOptions p
addSuffix other_lib = other_lib ++ suffix
-- This is a hack that's even more horrible (and hopefully more temporary)
- -- than the one below. HSbase_cbits and friends require the _dyn suffix
+ -- than the one below [referring to previous splittage of HSbase into chunks
+ -- to work around GNU ld bug]. HSbase_cbits and friends require the _dyn suffix
-- for dynamic linking, but not _p or other 'way' suffix. So we just add
-- _dyn to extraLibraries if they already have a _cbits suffix.
| otherwise = lib
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]
- --
- -- [sof 03/05: Renamed the (moribund) HSwin32 to HSwin_32 so as to
- -- avoid filename conflicts with the 'Win32' package on a case-insensitive filesystem]
- 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 "HSwin_321" `elem` libs && "HSwin_322" `elem` libs
- then "HSwin_32" : filter (not.(isPrefixOf "HSwin_32")) 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
-
getPackageExtraCcOpts :: DynFlags -> [PackageId] -> IO [String]
getPackageExtraCcOpts dflags pkgs = do
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