fc1e8093b5
This ports our infamous patch for Cabal that prevents certain parts of the Paths_* module from being generated in order to prevent unnecessary references on aarch64-darwin, to GHC >= 9.10. See also: - Original issues: #140774 - Patches - Original patch for GHC >= 8.10 && < 9.2 / Cabal >= 3.2 && < 3.6: https://github.com/nixOS/nixpkgs/commit/b0dcd7fa34377fc0c5ff155de2d07ffbff3 - Patch for GHC >= 9.2 && < 9.10 / Cabal >= 3.6 && < 3.12: #216857, https://github.com/NixOS/nixpkgs/pull/240387/commits/f6f780f129f50df536fb30, …
597 lines
23 KiB
Diff
597 lines
23 KiB
Diff
This patch is based on https://github.com/sternenseemann/cabal/compare/Cabal-v3.12.0.0..e836ef53c1f80bf99a70f9c4ee5976e9f3830215
|
||
and has been postprocessed with `filterdiff --strip=1 --addoldprefix=a/libraries/Cabal/ --addnewprefix=b/libraries/Cabal/`.
|
||
|
||
Reasoning and explanation of the patch can be found in the comment in the diff for PathsModule.hs below.
|
||
|
||
diffCabal/src/Distribution/Simple/Build/PathsModule.hs b/Cabal/src/Distribution/Simple/Build/PathsModule.hs
|
||
index 892e5bd38..391f5b130 100644
|
||
--- a/libraries/Cabal/Cabal/src/Distribution/Simple/Build/PathsModule.hs
|
||
+++ b/libraries/Cabal/Cabal/src/Distribution/Simple/Build/PathsModule.hs
|
||
@@ -51,6 +51,7 @@ generatePathsModule pkg_descr lbi clbi =
|
||
, Z.zIsWindows = isWindows
|
||
, Z.zIsI386 = buildArch == I386
|
||
, Z.zIsX8664 = buildArch == X86_64
|
||
+ , Z.zOr = (||)
|
||
, Z.zNot = not
|
||
, Z.zManglePkgName = showPkgName
|
||
, Z.zPrefix = show flat_prefix
|
||
@@ -60,8 +61,110 @@ generatePathsModule pkg_descr lbi clbi =
|
||
, Z.zDatadir = zDatadir
|
||
, Z.zLibexecdir = zLibexecdir
|
||
, Z.zSysconfdir = zSysconfdir
|
||
+ , -- Sadly we can't be cleverer about this – we can't have literals in the template
|
||
+ Z.zShouldEmitDataDir = shouldEmit "DataDir"
|
||
+ , Z.zShouldEmitLibDir = shouldEmit "LibDir"
|
||
+ , Z.zShouldEmitDynLibDir = shouldEmit "DynLibDir"
|
||
+ , Z.zShouldEmitLibexecDir = shouldEmit "LibexecDir"
|
||
+ , Z.zShouldEmitSysconfDir = shouldEmit "SysconfDir"
|
||
+ , Z.zWarning = zWarning
|
||
+ , Z.zShouldEmitWarning = zShouldEmitWarning
|
||
}
|
||
where
|
||
+ -- GHC's NCG backend for aarch64-darwin does not support link-time dead code
|
||
+ -- elimination to the extent that NCG does for other targets. Consequently,
|
||
+ -- we struggle with unnecessarily retained store path references due to the
|
||
+ -- use of `Paths_*` modules – even if `getLibDir` is not used, it'll end up
|
||
+ -- in the final library or executables we build.
|
||
+ --
|
||
+ -- When using a different output for the executables and library, this
|
||
+ -- becomes more sinister: The library will contain a reference to the bin
|
||
+ -- output and itself due to `getLibDir` and `getBinDir`, but the executables
|
||
+ -- will do so, too. Either due to linking dynamically or because the library
|
||
+ -- is linked statically into the executable and retains those references.
|
||
+ -- Since Nix disallows cyclical references between two outputs, it becomes
|
||
+ -- impossible to use the `Paths_*` module and a separate `bin` output for
|
||
+ -- aarch64-darwin.
|
||
+ --
|
||
+ -- The solution we have resorted to for now, is to trim the `Paths_*` module
|
||
+ -- dynamically depending on what references *could* be used without causing
|
||
+ -- a cyclical reference. That has the effect that any code that would not
|
||
+ -- cause a cyclical reference with dead code elimination will compile and
|
||
+ -- work for aarch64-darwin. If the code would use a `get*Dir` function that
|
||
+ -- has been omitted, this would indicate that the code would have caused a
|
||
+ -- cyclical reference anyways.
|
||
+ --
|
||
+ -- The logic for this makes some pretty big assumptions about installation
|
||
+ -- prefixes that probably only hold fully in nixpkgs with
|
||
+ -- `haskellPackages.mkDerivation`. Simple uses outside nixpkgs that have
|
||
+ -- everything below the same prefix should continue to work as expected,
|
||
+ -- though.
|
||
+ --
|
||
+ -- We assume the following:
|
||
+ --
|
||
+ -- - flat_prefix is `$out`.
|
||
+ -- - flat_libdir etc. are always below `$out`.
|
||
+ --
|
||
+ -- Since in the normal case due to static linking `$bin` and `$out` will
|
||
+ -- have the same references in libraries/executables, we need to either
|
||
+ -- prevent usage of `getBinDir` or `getLibDir` to break the cycle in case
|
||
+ -- `flat_bindir` is not below `$out`. We have decided to always allow usage
|
||
+ -- of `getBinDir`, so `getLibDir` gets dropped if a separate `bin` output is
|
||
+ -- used. This has the simple reason that `$out` which contains `flat_libdir`
|
||
+ -- tends to be quite big – we would like to have a `bin` output that doesn't
|
||
+ -- require keeping that around.
|
||
+ pathEmittable :: FilePath -> Bool
|
||
+ pathEmittable p
|
||
+ -- If the executable installation target is below `$out` the reference
|
||
+ -- cycle is within a single output (since libs are installed to `$out`)
|
||
+ -- and thus unproblematic. We can use any and all `get*Dir` functions.
|
||
+ | flat_prefix `isPrefixOf` flat_bindir = True
|
||
+ -- Otherwise, we need to disallow all `get*Dir` functions that would cause
|
||
+ -- a reference to `$out` which contains the libraries that would in turn
|
||
+ -- reference `$bin`. This always include `flat_libdir` and friends, but
|
||
+ -- can also include `flat_datadir` if no separate output for data files is
|
||
+ -- used.
|
||
+ | otherwise = not (flat_prefix `isPrefixOf` p)
|
||
+
|
||
+ -- This list maps the "name" of the directory to whether we want to include
|
||
+ -- it in the `Paths_*` module or not. `shouldEmit` performs a lookup in this.
|
||
+ dirs :: [(String, Bool)]
|
||
+ dirs =
|
||
+ map
|
||
+ (\(name, path) -> (name, pathEmittable path))
|
||
+ [ ("LibDir", flat_libdir)
|
||
+ , ("DynLibDir", flat_dynlibdir)
|
||
+ , ("DataDir", flat_datadir)
|
||
+ , ("LibexecDir", flat_libexecdir)
|
||
+ , ("SysconfDir", flat_sysconfdir)
|
||
+ ]
|
||
+
|
||
+ shouldEmit :: String -> Bool
|
||
+ shouldEmit name =
|
||
+ case lookup name dirs of
|
||
+ Just b -> b
|
||
+ Nothing -> error "panic! BUG in Cabal Paths_ patch for aarch64-darwin, report this at https://github.com/nixos/nixpkgs/issues"
|
||
+
|
||
+ -- This is a comma separated list of all functions that have been emitted.
|
||
+ -- This is included in a GHC warning which will be attached to the `Paths_*`
|
||
+ -- module in case we are dropping any `get*Dir` functions that would
|
||
+ -- normally exist.
|
||
+ --
|
||
+ -- TODO: getDataFileName is not accounted for at the moment.
|
||
+ omittedFunctions :: String
|
||
+ omittedFunctions =
|
||
+ intercalate ", " $
|
||
+ map (("get" ++) . fst) $
|
||
+ filter (not . snd) dirs
|
||
+
|
||
+ zWarning :: String
|
||
+ zWarning =
|
||
+ show $
|
||
+ "The following functions have been omitted by a nixpkgs-specific patch to Cabal: "
|
||
+ ++ omittedFunctions
|
||
+ zShouldEmitWarning :: Bool
|
||
+ zShouldEmitWarning = any (not . snd) dirs
|
||
+
|
||
supports_cpp = supports_language_pragma
|
||
supports_rebindable_syntax = ghc_newer_than (mkVersion [7, 0, 1])
|
||
supports_language_pragma = ghc_newer_than (mkVersion [6, 6, 1])
|
||
diffCabal/src/Distribution/Simple/Build/PathsModule/Z.hs b/Cabal/src/Distribution/Simple/Build/PathsModule/Z.hs
|
||
index 25c924720..a8278675e 100644
|
||
--- a/libraries/Cabal/Cabal/src/Distribution/Simple/Build/PathsModule/Z.hs
|
||
+++ b/libraries/Cabal/Cabal/src/Distribution/Simple/Build/PathsModule/Z.hs
|
||
@@ -19,6 +19,14 @@ data Z
|
||
zDatadir :: FilePath,
|
||
zLibexecdir :: FilePath,
|
||
zSysconfdir :: FilePath,
|
||
+ zShouldEmitLibDir :: Bool,
|
||
+ zShouldEmitDynLibDir :: Bool,
|
||
+ zShouldEmitLibexecDir :: Bool,
|
||
+ zShouldEmitDataDir :: Bool,
|
||
+ zShouldEmitSysconfDir :: Bool,
|
||
+ zShouldEmitWarning :: Bool,
|
||
+ zWarning :: String,
|
||
+ zOr :: (Bool -> Bool -> Bool),
|
||
zNot :: (Bool -> Bool),
|
||
zManglePkgName :: (PackageName -> String)}
|
||
deriving Generic
|
||
@@ -54,10 +62,51 @@ render z_root = execWriter $ do
|
||
tell "{-# OPTIONS_GHC -w #-}\n"
|
||
tell "module Paths_"
|
||
tell (zManglePkgName z_root (zPackageName z_root))
|
||
- tell " (\n"
|
||
+ tell "\n"
|
||
+ tell " "
|
||
+ if (zShouldEmitWarning z_root)
|
||
+ then do
|
||
+ tell "{-# WARNING "
|
||
+ tell (zWarning z_root)
|
||
+ tell " #-}"
|
||
+ return ()
|
||
+ else do
|
||
+ return ()
|
||
+ tell "\n"
|
||
+ tell " (\n"
|
||
tell " version,\n"
|
||
- tell " getBinDir, getLibDir, getDynLibDir, getDataDir, getLibexecDir,\n"
|
||
- tell " getDataFileName, getSysconfDir\n"
|
||
+ tell " getBinDir,\n"
|
||
+ if (zOr z_root (zNot z_root (zAbsolute z_root)) (zShouldEmitLibDir z_root))
|
||
+ then do
|
||
+ tell " getLibDir,\n"
|
||
+ return ()
|
||
+ else do
|
||
+ return ()
|
||
+ if (zOr z_root (zNot z_root (zAbsolute z_root)) (zShouldEmitDynLibDir z_root))
|
||
+ then do
|
||
+ tell " getDynLibDir,\n"
|
||
+ return ()
|
||
+ else do
|
||
+ return ()
|
||
+ if (zOr z_root (zNot z_root (zAbsolute z_root)) (zShouldEmitLibexecDir z_root))
|
||
+ then do
|
||
+ tell " getLibexecDir,\n"
|
||
+ return ()
|
||
+ else do
|
||
+ return ()
|
||
+ if (zOr z_root (zNot z_root (zAbsolute z_root)) (zShouldEmitDataDir z_root))
|
||
+ then do
|
||
+ tell " getDataFileName,\n"
|
||
+ tell " getDataDir,\n"
|
||
+ return ()
|
||
+ else do
|
||
+ return ()
|
||
+ if (zOr z_root (zNot z_root (zAbsolute z_root)) (zShouldEmitSysconfDir z_root))
|
||
+ then do
|
||
+ tell " getSysconfDir\n"
|
||
+ return ()
|
||
+ else do
|
||
+ return ()
|
||
tell " ) where\n"
|
||
tell "\n"
|
||
if (zNot z_root (zAbsolute z_root))
|
||
@@ -106,12 +155,15 @@ render z_root = execWriter $ do
|
||
tell (zVersionDigits z_root)
|
||
tell " []\n"
|
||
tell "\n"
|
||
- tell "getDataFileName :: FilePath -> IO FilePath\n"
|
||
- tell "getDataFileName name = do\n"
|
||
- tell " dir <- getDataDir\n"
|
||
- tell " return (dir `joinFileName` name)\n"
|
||
- tell "\n"
|
||
- tell "getBinDir, getLibDir, getDynLibDir, getDataDir, getLibexecDir, getSysconfDir :: IO FilePath\n"
|
||
+ if (zOr z_root (zNot z_root (zAbsolute z_root)) (zShouldEmitDataDir z_root))
|
||
+ then do
|
||
+ tell "getDataFileName :: FilePath -> IO FilePath\n"
|
||
+ tell "getDataFileName name = do\n"
|
||
+ tell " dir <- getDataDir\n"
|
||
+ tell " return (dir `joinFileName` name)\n"
|
||
+ return ()
|
||
+ else do
|
||
+ return ()
|
||
tell "\n"
|
||
let
|
||
z_var0_function_defs = do
|
||
@@ -139,6 +191,7 @@ render z_root = execWriter $ do
|
||
tell "\n"
|
||
if (zRelocatable z_root)
|
||
then do
|
||
+ tell "\n"
|
||
tell "\n"
|
||
tell "getPrefixDirReloc :: FilePath -> IO FilePath\n"
|
||
tell "getPrefixDirReloc dirRel = do\n"
|
||
@@ -148,31 +201,37 @@ render z_root = execWriter $ do
|
||
tell (zBindir z_root)
|
||
tell ") `joinFileName` dirRel)\n"
|
||
tell "\n"
|
||
+ tell "getBinDir :: IO FilePath\n"
|
||
tell "getBinDir = catchIO (getEnv \""
|
||
tell (zManglePkgName z_root (zPackageName z_root))
|
||
tell "_bindir\") (\\_ -> getPrefixDirReloc $ "
|
||
tell (zBindir z_root)
|
||
tell ")\n"
|
||
+ tell "getLibDir :: IO FilePath\n"
|
||
tell "getLibDir = catchIO (getEnv \""
|
||
tell (zManglePkgName z_root (zPackageName z_root))
|
||
tell "_libdir\") (\\_ -> getPrefixDirReloc $ "
|
||
tell (zLibdir z_root)
|
||
tell ")\n"
|
||
+ tell "getDynLibDir :: IO FilePath\n"
|
||
tell "getDynLibDir = catchIO (getEnv \""
|
||
tell (zManglePkgName z_root (zPackageName z_root))
|
||
tell "_dynlibdir\") (\\_ -> getPrefixDirReloc $ "
|
||
tell (zDynlibdir z_root)
|
||
tell ")\n"
|
||
+ tell "getDataDir :: IO FilePath\n"
|
||
tell "getDataDir = catchIO (getEnv \""
|
||
tell (zManglePkgName z_root (zPackageName z_root))
|
||
tell "_datadir\") (\\_ -> getPrefixDirReloc $ "
|
||
tell (zDatadir z_root)
|
||
tell ")\n"
|
||
+ tell "getLibexecDir :: IO FilePath\n"
|
||
tell "getLibexecDir = catchIO (getEnv \""
|
||
tell (zManglePkgName z_root (zPackageName z_root))
|
||
tell "_libexecdir\") (\\_ -> getPrefixDirReloc $ "
|
||
tell (zLibexecdir z_root)
|
||
tell ")\n"
|
||
+ tell "getSysconfDir :: IO FilePath\n"
|
||
tell "getSysconfDir = catchIO (getEnv \""
|
||
tell (zManglePkgName z_root (zPackageName z_root))
|
||
tell "_sysconfdir\") (\\_ -> getPrefixDirReloc $ "
|
||
@@ -186,72 +245,119 @@ render z_root = execWriter $ do
|
||
if (zAbsolute z_root)
|
||
then do
|
||
tell "\n"
|
||
- tell "bindir, libdir, dynlibdir, datadir, libexecdir, sysconfdir :: FilePath\n"
|
||
+ tell "bindir :: FilePath\n"
|
||
tell "bindir = "
|
||
tell (zBindir z_root)
|
||
tell "\n"
|
||
- tell "libdir = "
|
||
- tell (zLibdir z_root)
|
||
- tell "\n"
|
||
- tell "dynlibdir = "
|
||
- tell (zDynlibdir z_root)
|
||
+ tell "getBinDir :: IO FilePath\n"
|
||
+ tell "getBinDir = catchIO (getEnv \""
|
||
+ tell (zManglePkgName z_root (zPackageName z_root))
|
||
+ tell "_bindir\") (\\_ -> return bindir)\n"
|
||
tell "\n"
|
||
- tell "datadir = "
|
||
- tell (zDatadir z_root)
|
||
+ if (zShouldEmitLibDir z_root)
|
||
+ then do
|
||
+ tell "libdir :: FilePath\n"
|
||
+ tell "libdir = "
|
||
+ tell (zLibdir z_root)
|
||
+ tell "\n"
|
||
+ tell "getLibDir :: IO FilePath\n"
|
||
+ tell "getLibDir = catchIO (getEnv \""
|
||
+ tell (zManglePkgName z_root (zPackageName z_root))
|
||
+ tell "_libdir\") (\\_ -> return libdir)\n"
|
||
+ return ()
|
||
+ else do
|
||
+ return ()
|
||
tell "\n"
|
||
- tell "libexecdir = "
|
||
- tell (zLibexecdir z_root)
|
||
+ if (zShouldEmitDynLibDir z_root)
|
||
+ then do
|
||
+ tell "dynlibdir :: FilePath\n"
|
||
+ tell "dynlibdir = "
|
||
+ tell (zDynlibdir z_root)
|
||
+ tell "\n"
|
||
+ tell "getDynLibDir :: IO FilePath\n"
|
||
+ tell "getDynLibDir = catchIO (getEnv \""
|
||
+ tell (zManglePkgName z_root (zPackageName z_root))
|
||
+ tell "_dynlibdir\") (\\_ -> return dynlibdir)\n"
|
||
+ return ()
|
||
+ else do
|
||
+ return ()
|
||
tell "\n"
|
||
- tell "sysconfdir = "
|
||
- tell (zSysconfdir z_root)
|
||
+ if (zShouldEmitDataDir z_root)
|
||
+ then do
|
||
+ tell "datadir :: FilePath\n"
|
||
+ tell "datadir = "
|
||
+ tell (zDatadir z_root)
|
||
+ tell "\n"
|
||
+ tell "getDataDir :: IO FilePath\n"
|
||
+ tell "getDataDir = catchIO (getEnv \""
|
||
+ tell (zManglePkgName z_root (zPackageName z_root))
|
||
+ tell "_datadir\") (\\_ -> return datadir)\n"
|
||
+ return ()
|
||
+ else do
|
||
+ return ()
|
||
tell "\n"
|
||
+ if (zShouldEmitLibexecDir z_root)
|
||
+ then do
|
||
+ tell "libexecdir :: FilePath\n"
|
||
+ tell "libexecdir = "
|
||
+ tell (zLibexecdir z_root)
|
||
+ tell "\n"
|
||
+ tell "getLibexecDir :: IO FilePath\n"
|
||
+ tell "getLibexecDir = catchIO (getEnv \""
|
||
+ tell (zManglePkgName z_root (zPackageName z_root))
|
||
+ tell "_libexecdir\") (\\_ -> return libexecdir)\n"
|
||
+ return ()
|
||
+ else do
|
||
+ return ()
|
||
tell "\n"
|
||
- tell "getBinDir = catchIO (getEnv \""
|
||
- tell (zManglePkgName z_root (zPackageName z_root))
|
||
- tell "_bindir\") (\\_ -> return bindir)\n"
|
||
- tell "getLibDir = catchIO (getEnv \""
|
||
- tell (zManglePkgName z_root (zPackageName z_root))
|
||
- tell "_libdir\") (\\_ -> return libdir)\n"
|
||
- tell "getDynLibDir = catchIO (getEnv \""
|
||
- tell (zManglePkgName z_root (zPackageName z_root))
|
||
- tell "_dynlibdir\") (\\_ -> return dynlibdir)\n"
|
||
- tell "getDataDir = catchIO (getEnv \""
|
||
- tell (zManglePkgName z_root (zPackageName z_root))
|
||
- tell "_datadir\") (\\_ -> return datadir)\n"
|
||
- tell "getLibexecDir = catchIO (getEnv \""
|
||
- tell (zManglePkgName z_root (zPackageName z_root))
|
||
- tell "_libexecdir\") (\\_ -> return libexecdir)\n"
|
||
- tell "getSysconfDir = catchIO (getEnv \""
|
||
- tell (zManglePkgName z_root (zPackageName z_root))
|
||
- tell "_sysconfdir\") (\\_ -> return sysconfdir)\n"
|
||
+ if (zShouldEmitSysconfDir z_root)
|
||
+ then do
|
||
+ tell "sysconfdir :: FilePath\n"
|
||
+ tell "sysconfdir = "
|
||
+ tell (zSysconfdir z_root)
|
||
+ tell "\n"
|
||
+ tell "getSysconfDir :: IO FilePath\n"
|
||
+ tell "getSysconfDir = catchIO (getEnv \""
|
||
+ tell (zManglePkgName z_root (zPackageName z_root))
|
||
+ tell "_sysconfdir\") (\\_ -> return sysconfdir)\n"
|
||
+ return ()
|
||
+ else do
|
||
+ return ()
|
||
tell "\n"
|
||
return ()
|
||
else do
|
||
if (zIsWindows z_root)
|
||
then do
|
||
+ tell "\n"
|
||
tell "\n"
|
||
tell "prefix :: FilePath\n"
|
||
tell "prefix = "
|
||
tell (zPrefix z_root)
|
||
tell "\n"
|
||
tell "\n"
|
||
+ tell "getBinDir :: IO FilePath\n"
|
||
tell "getBinDir = getPrefixDirRel $ "
|
||
tell (zBindir z_root)
|
||
tell "\n"
|
||
+ tell "getLibDir :: IO FilePath\n"
|
||
tell "getLibDir = "
|
||
tell (zLibdir z_root)
|
||
tell "\n"
|
||
+ tell "getDynLibDir :: IO FilePath\n"
|
||
tell "getDynLibDir = "
|
||
tell (zDynlibdir z_root)
|
||
tell "\n"
|
||
+ tell "getDataDir :: IO FilePath\n"
|
||
tell "getDataDir = catchIO (getEnv \""
|
||
tell (zManglePkgName z_root (zPackageName z_root))
|
||
tell "_datadir\") (\\_ -> "
|
||
tell (zDatadir z_root)
|
||
tell ")\n"
|
||
+ tell "getLibexecDir :: IO FilePath\n"
|
||
tell "getLibexecDir = "
|
||
tell (zLibexecdir z_root)
|
||
tell "\n"
|
||
+ tell "getSysconfDir :: IO FilePath\n"
|
||
tell "getSysconfDir = "
|
||
tell (zSysconfdir z_root)
|
||
tell "\n"
|
||
diffcabal-dev-scripts/src/GenPathsModule.hs b/cabal-dev-scripts/src/GenPathsModule.hs
|
||
index 46ef779e2..e9f5e099f 100644
|
||
--- a/libraries/Cabal/cabal-dev-scripts/src/GenPathsModule.hs
|
||
+++ b/libraries/Cabal/cabal-dev-scripts/src/GenPathsModule.hs
|
||
@@ -41,6 +41,16 @@ $(capture "decls" [d|
|
||
, zLibexecdir :: FilePath
|
||
, zSysconfdir :: FilePath
|
||
|
||
+ , zShouldEmitLibDir :: Bool
|
||
+ , zShouldEmitDynLibDir :: Bool
|
||
+ , zShouldEmitLibexecDir :: Bool
|
||
+ , zShouldEmitDataDir :: Bool
|
||
+ , zShouldEmitSysconfDir :: Bool
|
||
+
|
||
+ , zShouldEmitWarning :: Bool
|
||
+ , zWarning :: String
|
||
+
|
||
+ , zOr :: Bool -> Bool -> Bool
|
||
, zNot :: Bool -> Bool
|
||
, zManglePkgName :: PackageName -> String
|
||
}
|
||
difftemplates/Paths_pkg.template.hs b/templates/Paths_pkg.template.hs
|
||
index 8e1e03d27..cc5c86701 100644
|
||
--- a/libraries/Cabal/templates/Paths_pkg.template.hs
|
||
+++ b/libraries/Cabal/templates/Paths_pkg.template.hs
|
||
@@ -14,10 +14,31 @@
|
||
{% endif %}
|
||
{-# OPTIONS_GHC -fno-warn-missing-import-lists #-}
|
||
{-# OPTIONS_GHC -w #-}
|
||
-module Paths_{{ manglePkgName packageName }} (
|
||
+module Paths_{{ manglePkgName packageName }}
|
||
+ {% if shouldEmitWarning %}{-# WARNING {{ warning }} #-}{% endif %}
|
||
+ (
|
||
version,
|
||
- getBinDir, getLibDir, getDynLibDir, getDataDir, getLibexecDir,
|
||
- getDataFileName, getSysconfDir
|
||
+ getBinDir,
|
||
+{# We only care about the absolute case for our emit logic, since only in this
|
||
+ case references are incurred. We are not going to hit isWindows and relocatable
|
||
+ has no absolute references to begin with.
|
||
+#}
|
||
+{% if or (not absolute) shouldEmitLibDir %}
|
||
+ getLibDir,
|
||
+{% endif %}
|
||
+{% if or (not absolute) shouldEmitDynLibDir %}
|
||
+ getDynLibDir,
|
||
+{% endif %}
|
||
+{% if or (not absolute) shouldEmitLibexecDir %}
|
||
+ getLibexecDir,
|
||
+{% endif %}
|
||
+{% if or (not absolute) shouldEmitDataDir %}
|
||
+ getDataFileName,
|
||
+ getDataDir,
|
||
+{% endif %}
|
||
+{% if or (not absolute) shouldEmitSysconfDir %}
|
||
+ getSysconfDir
|
||
+{% endif %}
|
||
) where
|
||
|
||
{% if not absolute %}
|
||
@@ -56,12 +77,12 @@ catchIO = Exception.catch
|
||
version :: Version
|
||
version = Version {{ versionDigits }} []
|
||
|
||
+{% if or (not absolute) shouldEmitDataDir %}
|
||
getDataFileName :: FilePath -> IO FilePath
|
||
getDataFileName name = do
|
||
dir <- getDataDir
|
||
return (dir `joinFileName` name)
|
||
-
|
||
-getBinDir, getLibDir, getDynLibDir, getDataDir, getLibexecDir, getSysconfDir :: IO FilePath
|
||
+{% endif %}
|
||
|
||
{% defblock function_defs %}
|
||
minusFileName :: FilePath -> String -> FilePath
|
||
@@ -90,48 +111,93 @@ splitFileName p = (reverse (path2++drive), reverse fname)
|
||
|
||
{% if relocatable %}
|
||
|
||
+{# Relocatable can not incur any absolute references, so we can ignore it.
|
||
+ Additionally, --enable-relocatable is virtually useless in Nix builds
|
||
+#}
|
||
+
|
||
getPrefixDirReloc :: FilePath -> IO FilePath
|
||
getPrefixDirReloc dirRel = do
|
||
exePath <- getExecutablePath
|
||
let (dir,_) = splitFileName exePath
|
||
return ((dir `minusFileName` {{ bindir }}) `joinFileName` dirRel)
|
||
|
||
+getBinDir :: IO FilePath
|
||
getBinDir = catchIO (getEnv "{{ manglePkgName packageName }}_bindir") (\_ -> getPrefixDirReloc $ {{ bindir }})
|
||
+getLibDir :: IO FilePath
|
||
getLibDir = catchIO (getEnv "{{ manglePkgName packageName }}_libdir") (\_ -> getPrefixDirReloc $ {{ libdir }})
|
||
+getDynLibDir :: IO FilePath
|
||
getDynLibDir = catchIO (getEnv "{{ manglePkgName packageName }}_dynlibdir") (\_ -> getPrefixDirReloc $ {{ dynlibdir }})
|
||
+getDataDir :: IO FilePath
|
||
getDataDir = catchIO (getEnv "{{ manglePkgName packageName }}_datadir") (\_ -> getPrefixDirReloc $ {{ datadir }})
|
||
+getLibexecDir :: IO FilePath
|
||
getLibexecDir = catchIO (getEnv "{{ manglePkgName packageName }}_libexecdir") (\_ -> getPrefixDirReloc $ {{ libexecdir }})
|
||
+getSysconfDir :: IO FilePath
|
||
getSysconfDir = catchIO (getEnv "{{ manglePkgName packageName }}_sysconfdir") (\_ -> getPrefixDirReloc $ {{ sysconfdir }})
|
||
|
||
{% useblock function_defs %}
|
||
|
||
{% elif absolute %}
|
||
|
||
-bindir, libdir, dynlibdir, datadir, libexecdir, sysconfdir :: FilePath
|
||
+bindir :: FilePath
|
||
bindir = {{ bindir }}
|
||
-libdir = {{ libdir }}
|
||
-dynlibdir = {{ dynlibdir }}
|
||
-datadir = {{ datadir }}
|
||
-libexecdir = {{ libexecdir }}
|
||
-sysconfdir = {{ sysconfdir }}
|
||
-
|
||
+getBinDir :: IO FilePath
|
||
getBinDir = catchIO (getEnv "{{ manglePkgName packageName }}_bindir") (\_ -> return bindir)
|
||
+
|
||
+{% if shouldEmitLibDir %}
|
||
+libdir :: FilePath
|
||
+libdir = {{ libdir }}
|
||
+getLibDir :: IO FilePath
|
||
getLibDir = catchIO (getEnv "{{ manglePkgName packageName }}_libdir") (\_ -> return libdir)
|
||
+{% endif %}
|
||
+
|
||
+{% if shouldEmitDynLibDir %}
|
||
+dynlibdir :: FilePath
|
||
+dynlibdir = {{ dynlibdir }}
|
||
+getDynLibDir :: IO FilePath
|
||
getDynLibDir = catchIO (getEnv "{{ manglePkgName packageName }}_dynlibdir") (\_ -> return dynlibdir)
|
||
+{% endif %}
|
||
+
|
||
+{% if shouldEmitDataDir %}
|
||
+datadir :: FilePath
|
||
+datadir = {{ datadir }}
|
||
+getDataDir :: IO FilePath
|
||
getDataDir = catchIO (getEnv "{{ manglePkgName packageName }}_datadir") (\_ -> return datadir)
|
||
+{% endif %}
|
||
+
|
||
+{% if shouldEmitLibexecDir %}
|
||
+libexecdir :: FilePath
|
||
+libexecdir = {{ libexecdir }}
|
||
+getLibexecDir :: IO FilePath
|
||
getLibexecDir = catchIO (getEnv "{{ manglePkgName packageName }}_libexecdir") (\_ -> return libexecdir)
|
||
+{% endif %}
|
||
+
|
||
+{% if shouldEmitSysconfDir %}
|
||
+sysconfdir :: FilePath
|
||
+sysconfdir = {{ sysconfdir }}
|
||
+getSysconfDir :: IO FilePath
|
||
getSysconfDir = catchIO (getEnv "{{ manglePkgName packageName }}_sysconfdir") (\_ -> return sysconfdir)
|
||
+{% endif %}
|
||
|
||
{% elif isWindows %}
|
||
|
||
+{# We are only trying to fix the problem for aarch64-darwin with this patch,
|
||
+ so let's ignore Windows which we can reach via pkgsCross, for example.
|
||
+#}
|
||
+
|
||
prefix :: FilePath
|
||
prefix = {{ prefix }}
|
||
|
||
+getBinDir :: IO FilePath
|
||
getBinDir = getPrefixDirRel $ {{ bindir }}
|
||
+getLibDir :: IO FilePath
|
||
getLibDir = {{ libdir }}
|
||
+getDynLibDir :: IO FilePath
|
||
getDynLibDir = {{ dynlibdir }}
|
||
+getDataDir :: IO FilePath
|
||
getDataDir = catchIO (getEnv "{{ manglePkgName packageName }}_datadir") (\_ -> {{ datadir }})
|
||
+getLibexecDir :: IO FilePath
|
||
getLibexecDir = {{ libexecdir }}
|
||
+getSysconfDir :: IO FilePath
|
||
getSysconfDir = {{ sysconfdir }}
|
||
|
||
getPrefixDirRel :: FilePath -> IO FilePath
|