mirror of
https://github.com/NixOS/nixpkgs.git
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f3282c8d1e
* treewide: remove unused variables * making ofborg happy
328 lines
16 KiB
Nix
328 lines
16 KiB
Nix
{ lib, config, stdenv }:
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let
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checkMeta = import ./check-meta.nix {
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inherit lib config;
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# Nix itself uses the `system` field of a derivation to decide where
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# to build it. This is a bit confusing for cross compilation.
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inherit (stdenv) hostPlatform;
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};
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in rec {
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# `mkDerivation` wraps the builtin `derivation` function to
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# produce derivations that use this stdenv and its shell.
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#
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# See also:
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#
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# * https://nixos.org/nixpkgs/manual/#sec-using-stdenv
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# Details on how to use this mkDerivation function
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#
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# * https://nixos.org/nix/manual/#ssec-derivation
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# Explanation about derivations in general
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mkDerivation =
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{
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# These types of dependencies are all exhaustively documented in
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# the "Specifying Dependencies" section of the "Standard
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# Environment" chapter of the Nixpkgs manual.
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# TODO(@Ericson2314): Stop using legacy dep attribute names
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# host offset -> target offset
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depsBuildBuild ? [] # -1 -> -1
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, depsBuildBuildPropagated ? [] # -1 -> -1
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, nativeBuildInputs ? [] # -1 -> 0 N.B. Legacy name
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, propagatedNativeBuildInputs ? [] # -1 -> 0 N.B. Legacy name
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, depsBuildTarget ? [] # -1 -> 1
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, depsBuildTargetPropagated ? [] # -1 -> 1
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, depsHostHost ? [] # 0 -> 0
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, depsHostHostPropagated ? [] # 0 -> 0
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, buildInputs ? [] # 0 -> 1 N.B. Legacy name
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, propagatedBuildInputs ? [] # 0 -> 1 N.B. Legacy name
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, depsTargetTarget ? [] # 1 -> 1
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, depsTargetTargetPropagated ? [] # 1 -> 1
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, checkInputs ? []
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, installCheckInputs ? []
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# Configure Phase
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, configureFlags ? []
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, cmakeFlags ? []
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, # Target is not included by default because most programs don't care.
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# Including it then would cause needless mass rebuilds.
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#
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# TODO(@Ericson2314): Make [ "build" "host" ] always the default.
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configurePlatforms ? lib.optionals
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(stdenv.hostPlatform != stdenv.buildPlatform)
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[ "build" "host" ]
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# TODO(@Ericson2314): Make unconditional / resolve #33599
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# Check phase
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, doCheck ? config.doCheckByDefault or false
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# TODO(@Ericson2314): Make unconditional / resolve #33599
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# InstallCheck phase
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, doInstallCheck ? config.doCheckByDefault or false
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, # TODO(@Ericson2314): Make always true and remove
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strictDeps ? stdenv.hostPlatform != stdenv.buildPlatform
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, meta ? {}
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, passthru ? {}
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, pos ? # position used in error messages and for meta.position
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(if attrs.meta.description or null != null
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then builtins.unsafeGetAttrPos "description" attrs.meta
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else if attrs.version or null != null
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then builtins.unsafeGetAttrPos "version" attrs
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else builtins.unsafeGetAttrPos "name" attrs)
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, separateDebugInfo ? false
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, outputs ? [ "out" ]
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, __darwinAllowLocalNetworking ? false
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, __impureHostDeps ? []
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, __propagatedImpureHostDeps ? []
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, sandboxProfile ? ""
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, propagatedSandboxProfile ? ""
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, hardeningEnable ? []
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, hardeningDisable ? []
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, patches ? []
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, ... } @ attrs:
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let
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# TODO(@oxij, @Ericson2314): This is here to keep the old semantics, remove when
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# no package has `doCheck = true`.
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doCheck' = doCheck && stdenv.hostPlatform == stdenv.buildPlatform;
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doInstallCheck' = doInstallCheck && stdenv.hostPlatform == stdenv.buildPlatform;
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separateDebugInfo' = separateDebugInfo && stdenv.hostPlatform.isLinux && !(stdenv.hostPlatform.useLLVM or false);
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outputs' = outputs ++ lib.optional separateDebugInfo' "debug";
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noNonNativeDeps = builtins.length (depsBuildTarget ++ depsBuildTargetPropagated
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++ depsHostHost ++ depsHostHostPropagated
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++ buildInputs ++ propagatedBuildInputs
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++ depsTargetTarget ++ depsTargetTargetPropagated) == 0;
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dontAddHostSuffix = attrs ? outputHash && !noNonNativeDeps || (stdenv.noCC or false);
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supportedHardeningFlags = [ "fortify" "stackprotector" "pie" "pic" "strictoverflow" "format" "relro" "bindnow" ];
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defaultHardeningFlags = if stdenv.hostPlatform.isMusl
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then supportedHardeningFlags
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else lib.remove "pie" supportedHardeningFlags;
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enabledHardeningOptions =
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if builtins.elem "all" hardeningDisable
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then []
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else lib.subtractLists hardeningDisable (defaultHardeningFlags ++ hardeningEnable);
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# hardeningDisable additionally supports "all".
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erroneousHardeningFlags = lib.subtractLists supportedHardeningFlags (hardeningEnable ++ lib.remove "all" hardeningDisable);
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in if builtins.length erroneousHardeningFlags != 0
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then abort ("mkDerivation was called with unsupported hardening flags: " + lib.generators.toPretty {} {
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inherit erroneousHardeningFlags hardeningDisable hardeningEnable supportedHardeningFlags;
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})
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else let
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doCheck = doCheck';
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doInstallCheck = doInstallCheck';
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outputs = outputs';
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references = nativeBuildInputs ++ buildInputs
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++ propagatedNativeBuildInputs ++ propagatedBuildInputs;
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dependencies = map (map lib.chooseDevOutputs) [
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[
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(map (drv: drv.__spliced.buildBuild or drv) depsBuildBuild)
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(map (drv: drv.nativeDrv or drv) nativeBuildInputs
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++ lib.optional separateDebugInfo' ../../build-support/setup-hooks/separate-debug-info.sh
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++ lib.optional stdenv.hostPlatform.isWindows ../../build-support/setup-hooks/win-dll-link.sh
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++ lib.optionals doCheck checkInputs
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++ lib.optionals doInstallCheck' installCheckInputs)
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(map (drv: drv.__spliced.buildTarget or drv) depsBuildTarget)
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]
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[
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(map (drv: drv.__spliced.hostHost or drv) depsHostHost)
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(map (drv: drv.crossDrv or drv) buildInputs)
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]
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[
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(map (drv: drv.__spliced.targetTarget or drv) depsTargetTarget)
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]
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];
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propagatedDependencies = map (map lib.chooseDevOutputs) [
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[
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(map (drv: drv.__spliced.buildBuild or drv) depsBuildBuildPropagated)
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(map (drv: drv.nativeDrv or drv) propagatedNativeBuildInputs)
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(map (drv: drv.__spliced.buildTarget or drv) depsBuildTargetPropagated)
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]
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[
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(map (drv: drv.__spliced.hostHost or drv) depsHostHostPropagated)
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(map (drv: drv.crossDrv or drv) propagatedBuildInputs)
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]
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[
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(map (drv: drv.__spliced.targetTarget or drv) depsTargetTargetPropagated)
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]
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];
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computedSandboxProfile =
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lib.concatMap (input: input.__propagatedSandboxProfile or [])
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(stdenv.extraNativeBuildInputs
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++ stdenv.extraBuildInputs
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++ lib.concatLists dependencies);
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computedPropagatedSandboxProfile =
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lib.concatMap (input: input.__propagatedSandboxProfile or [])
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(lib.concatLists propagatedDependencies);
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computedImpureHostDeps =
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lib.unique (lib.concatMap (input: input.__propagatedImpureHostDeps or [])
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(stdenv.extraNativeBuildInputs
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++ stdenv.extraBuildInputs
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++ lib.concatLists dependencies));
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computedPropagatedImpureHostDeps =
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lib.unique (lib.concatMap (input: input.__propagatedImpureHostDeps or [])
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(lib.concatLists propagatedDependencies));
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derivationArg =
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(removeAttrs attrs
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["meta" "passthru" "pos"
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"checkInputs" "installCheckInputs"
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"__darwinAllowLocalNetworking"
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"__impureHostDeps" "__propagatedImpureHostDeps"
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"sandboxProfile" "propagatedSandboxProfile"])
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// (lib.optionalAttrs (!(attrs ? name) && attrs ? pname && attrs ? version)) {
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name = "${attrs.pname}-${attrs.version}";
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} // (lib.optionalAttrs (stdenv.hostPlatform != stdenv.buildPlatform && !dontAddHostSuffix && (attrs ? name || (attrs ? pname && attrs ? version)))) {
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# Fixed-output derivations like source tarballs shouldn't get a host
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# suffix. But we have some weird ones with run-time deps that are
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# just used for their side-affects. Those might as well since the
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# hash can't be the same. See #32986.
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name = "${attrs.name or "${attrs.pname}-${attrs.version}"}-${stdenv.hostPlatform.config}";
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} // {
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builder = attrs.realBuilder or stdenv.shell;
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args = attrs.args or ["-e" (attrs.builder or ./default-builder.sh)];
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inherit stdenv;
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# The `system` attribute of a derivation has special meaning to Nix.
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# Derivations set it to choose what sort of machine could be used to
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# execute the build, The build platform entirely determines this,
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# indeed more finely than Nix knows or cares about. The `system`
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# attribute of `buildPlatfom` matches Nix's degree of specificity.
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# exactly.
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inherit (stdenv.buildPlatform) system;
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userHook = config.stdenv.userHook or null;
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__ignoreNulls = true;
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inherit strictDeps;
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depsBuildBuild = lib.elemAt (lib.elemAt dependencies 0) 0;
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nativeBuildInputs = lib.elemAt (lib.elemAt dependencies 0) 1;
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depsBuildTarget = lib.elemAt (lib.elemAt dependencies 0) 2;
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depsHostHost = lib.elemAt (lib.elemAt dependencies 1) 0;
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buildInputs = lib.elemAt (lib.elemAt dependencies 1) 1;
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depsTargetTarget = lib.elemAt (lib.elemAt dependencies 2) 0;
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depsBuildBuildPropagated = lib.elemAt (lib.elemAt propagatedDependencies 0) 0;
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propagatedNativeBuildInputs = lib.elemAt (lib.elemAt propagatedDependencies 0) 1;
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depsBuildTargetPropagated = lib.elemAt (lib.elemAt propagatedDependencies 0) 2;
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depsHostHostPropagated = lib.elemAt (lib.elemAt propagatedDependencies 1) 0;
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propagatedBuildInputs = lib.elemAt (lib.elemAt propagatedDependencies 1) 1;
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depsTargetTargetPropagated = lib.elemAt (lib.elemAt propagatedDependencies 2) 0;
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# This parameter is sometimes a string, sometimes null, and sometimes a list, yuck
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configureFlags = let inherit (lib) optional elem; in
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(/**/ if lib.isString configureFlags then [configureFlags]
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else if configureFlags == null then []
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else configureFlags)
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++ optional (elem "build" configurePlatforms) "--build=${stdenv.buildPlatform.config}"
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++ optional (elem "host" configurePlatforms) "--host=${stdenv.hostPlatform.config}"
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++ optional (elem "target" configurePlatforms) "--target=${stdenv.targetPlatform.config}";
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inherit patches;
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inherit doCheck doInstallCheck;
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inherit outputs;
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} // lib.optionalAttrs (stdenv.hostPlatform != stdenv.buildPlatform) {
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cmakeFlags =
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(/**/ if lib.isString cmakeFlags then [cmakeFlags]
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else if cmakeFlags == null then []
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else cmakeFlags)
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++ lib.optional (stdenv.hostPlatform.uname.system != null) "-DCMAKE_SYSTEM_NAME=${stdenv.hostPlatform.uname.system}"
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++ lib.optional (stdenv.hostPlatform.uname.processor != null) "-DCMAKE_SYSTEM_PROCESSOR=${stdenv.hostPlatform.uname.processor}"
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++ lib.optional (stdenv.hostPlatform.uname.release != null) "-DCMAKE_SYSTEM_VERSION=${stdenv.hostPlatform.release}"
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++ lib.optional (stdenv.buildPlatform.uname.system != null) "-DCMAKE_HOST_SYSTEM_NAME=${stdenv.buildPlatform.uname.system}"
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++ lib.optional (stdenv.buildPlatform.uname.processor != null) "-DCMAKE_HOST_SYSTEM_PROCESSOR=${stdenv.buildPlatform.uname.processor}"
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++ lib.optional (stdenv.buildPlatform.uname.release != null) "-DCMAKE_HOST_SYSTEM_VERSION=${stdenv.buildPlatform.uname.release}";
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} // lib.optionalAttrs (attrs.enableParallelBuilding or false) {
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enableParallelChecking = attrs.enableParallelChecking or true;
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} // lib.optionalAttrs (hardeningDisable != [] || hardeningEnable != []) {
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NIX_HARDENING_ENABLE = enabledHardeningOptions;
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} // lib.optionalAttrs (stdenv.hostPlatform.isx86_64 && stdenv.hostPlatform ? platform.gcc.arch) {
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requiredSystemFeatures = attrs.requiredSystemFeatures or [] ++ [ "gccarch-${stdenv.hostPlatform.platform.gcc.arch}" ];
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} // lib.optionalAttrs (stdenv.buildPlatform.isDarwin) {
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inherit __darwinAllowLocalNetworking;
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# TODO: remove lib.unique once nix has a list canonicalization primitive
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__sandboxProfile =
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let profiles = [ stdenv.extraSandboxProfile ] ++ computedSandboxProfile ++ computedPropagatedSandboxProfile ++ [ propagatedSandboxProfile sandboxProfile ];
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final = lib.concatStringsSep "\n" (lib.filter (x: x != "") (lib.unique profiles));
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in final;
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__propagatedSandboxProfile = lib.unique (computedPropagatedSandboxProfile ++ [ propagatedSandboxProfile ]);
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__impureHostDeps = computedImpureHostDeps ++ computedPropagatedImpureHostDeps ++ __propagatedImpureHostDeps ++ __impureHostDeps ++ stdenv.__extraImpureHostDeps ++ [
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"/dev/zero"
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"/dev/random"
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"/dev/urandom"
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"/bin/sh"
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];
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__propagatedImpureHostDeps = computedPropagatedImpureHostDeps ++ __propagatedImpureHostDeps;
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};
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validity = checkMeta { inherit meta attrs; };
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# The meta attribute is passed in the resulting attribute set,
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# but it's not part of the actual derivation, i.e., it's not
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# passed to the builder and is not a dependency. But since we
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# include it in the result, it *is* available to nix-env for queries.
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meta = {
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# `name` above includes cross-compilation cruft (and is under assert),
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# lets have a clean always accessible version here.
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name = attrs.name or "${attrs.pname}-${attrs.version}";
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# If the packager hasn't specified `outputsToInstall`, choose a default,
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# which is the name of `p.bin or p.out or p`;
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# if he has specified it, it will be overridden below in `// meta`.
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# Note: This default probably shouldn't be globally configurable.
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# Services and users should specify outputs explicitly,
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# unless they are comfortable with this default.
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outputsToInstall =
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let
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hasOutput = out: builtins.elem out outputs;
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in [( lib.findFirst hasOutput null (["bin" "out"] ++ outputs) )]
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++ lib.optional (hasOutput "man") "man";
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}
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// attrs.meta or {}
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# Fill `meta.position` to identify the source location of the package.
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// lib.optionalAttrs (pos != null) {
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position = pos.file + ":" + toString pos.line;
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# Expose the result of the checks for everyone to see.
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} // {
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available = validity.valid
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&& (if config.checkMetaRecursively or false
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then lib.all (d: d.meta.available or true) references
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else true);
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};
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in
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lib.extendDerivation
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validity.handled
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({
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overrideAttrs = f: mkDerivation (attrs // (f attrs));
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inherit meta passthru;
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} //
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# Pass through extra attributes that are not inputs, but
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# should be made available to Nix expressions using the
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# derivation (e.g., in assertions).
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passthru)
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(derivation derivationArg);
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}
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