let lib = import ../../../lib; stdenv-overridable = lib.makeOverridable ( argsStdenv@{ name ? "stdenv", preHook ? "", initialPath , # If we don't have a C compiler, we might either have `cc = null` or `cc = # throw ...`, but if we do have a C compiler we should definiely have `cc != # null`. # # TODO(@Ericson2314): Add assert without creating infinite recursion hasCC ? cc != null, cc , shell , allowedRequisites ? null, extraAttrs ? {}, overrides ? (self: super: {}), config , # The `fetchurl' to use for downloading curl and its dependencies # (see all-packages.nix). fetchurlBoot , setupScript ? ./setup.sh , extraNativeBuildInputs ? [] , extraBuildInputs ? [] , __stdenvImpureHostDeps ? [] , __extraImpureHostDeps ? [] , stdenvSandboxProfile ? "" , extraSandboxProfile ? "" ## Platform parameters ## ## The "build" "host" "target" terminology below comes from GNU Autotools. See ## its documentation for more information on what those words mean. Note that ## each should always be defined, even when not cross compiling. ## ## For purposes of bootstrapping, think of each stage as a "sliding window" ## over a list of platforms. Specifically, the host platform of the previous ## stage becomes the build platform of the current one, and likewise the ## target platform of the previous stage becomes the host platform of the ## current one. ## , # The platform on which packages are built. Consists of `system`, a # string (e.g.,`i686-linux') identifying the most import attributes of the # build platform, and `platform` a set of other details. buildPlatform , # The platform on which packages run. hostPlatform , # The platform which build tools (especially compilers) build for in this stage, targetPlatform , # The implementation of `mkDerivation`, parameterized with the final stdenv so we can tie the knot. # This is convient to have as a parameter so the stdenv "adapters" work better mkDerivationFromStdenv ? import ./make-derivation.nix { inherit lib config; } }: let defaultNativeBuildInputs = extraNativeBuildInputs ++ [ ../../build-support/setup-hooks/move-docs.sh ../../build-support/setup-hooks/make-symlinks-relative.sh ../../build-support/setup-hooks/compress-man-pages.sh ../../build-support/setup-hooks/strip.sh ../../build-support/setup-hooks/patch-shebangs.sh ../../build-support/setup-hooks/prune-libtool-files.sh ] # FIXME this on Darwin; see # https://github.com/NixOS/nixpkgs/commit/94d164dd7#commitcomment-22030369 ++ lib.optionals hostPlatform.isLinux [ ../../build-support/setup-hooks/audit-tmpdir.sh ../../build-support/setup-hooks/move-systemd-user-units.sh ] ++ [ ../../build-support/setup-hooks/multiple-outputs.sh ../../build-support/setup-hooks/move-sbin.sh ../../build-support/setup-hooks/move-lib64.sh ../../build-support/setup-hooks/set-source-date-epoch-to-latest.sh ../../build-support/setup-hooks/reproducible-builds.sh # TODO use lib.optional instead (if hasCC then cc else null) ]; defaultBuildInputs = extraBuildInputs; stdenv = (stdenv-overridable argsStdenv); # The stdenv that we are producing. in derivation ( lib.optionalAttrs (allowedRequisites != null) { allowedRequisites = allowedRequisites ++ defaultNativeBuildInputs ++ defaultBuildInputs; } // lib.optionalAttrs (config.contentAddressedByDefault or false) { __contentAddressed = true; outputHashAlgo = "sha256"; outputHashMode = "recursive"; } // { inherit name; # Nix itself uses the `system` field of a derivation to decide where to # build it. This is a bit confusing for cross compilation. inherit (buildPlatform) system; builder = shell; args = ["-e" ./builder.sh]; setup = setupScript; # We pretty much never need rpaths on Darwin, since all library path references # are absolute unless we go out of our way to make them relative (like with CF) # TODO: This really wants to be in stdenv/darwin but we don't have hostPlatform # there (yet?) so it goes here until then. preHook = preHook + lib.optionalString buildPlatform.isDarwin '' export NIX_DONT_SET_RPATH_FOR_BUILD=1 '' + lib.optionalString (hostPlatform.isDarwin || (hostPlatform.parsed.kernel.execFormat != lib.systems.parse.execFormats.elf && hostPlatform.parsed.kernel.execFormat != lib.systems.parse.execFormats.macho)) '' export NIX_DONT_SET_RPATH=1 export NIX_NO_SELF_RPATH=1 '' + lib.optionalString (hostPlatform.isDarwin && hostPlatform.isMacOS) '' export MACOSX_DEPLOYMENT_TARGET=${hostPlatform.darwinMinVersion} '' # TODO this should be uncommented, but it causes stupid mass rebuilds. I # think the best solution would just be to fixup linux RPATHs so we don't # need to set `-rpath` anywhere. # + lib.optionalString targetPlatform.isDarwin '' # export NIX_DONT_SET_RPATH_FOR_TARGET=1 # '' ; inherit initialPath shell defaultNativeBuildInputs defaultBuildInputs; } // lib.optionalAttrs buildPlatform.isDarwin { __sandboxProfile = stdenvSandboxProfile; __impureHostDeps = __stdenvImpureHostDeps; }) // { meta = { description = "The default build environment for Unix packages in Nixpkgs"; platforms = lib.platforms.all; }; inherit buildPlatform hostPlatform targetPlatform; inherit extraNativeBuildInputs extraBuildInputs __extraImpureHostDeps extraSandboxProfile; # Utility flags to test the type of platform. inherit (hostPlatform) isDarwin isLinux isSunOS isCygwin isBSD isFreeBSD isOpenBSD isi686 isx86_32 isx86_64 is32bit is64bit isAarch32 isAarch64 isMips isBigEndian; # Override `system` so that packages can get the system of the host # platform through `stdenv.system`. `system` is originally set to the # build platform within the derivation above so that Nix directs the build # to correct type of machine. inherit (hostPlatform) system; mkDerivation = mkDerivationFromStdenv stdenv; inherit fetchurlBoot; inherit overrides; inherit cc hasCC; # Convenience for doing some very basic shell syntax checking by parsing a script # without running any commands. Because this will also skip `shopt -s extglob` # commands and extglob affects the Bash parser, we enable extglob always. shellDryRun = "${stdenv.shell} -n -O extglob"; } # Propagate any extra attributes. For instance, we use this to # "lift" packages like curl from the final stdenv for Linux to # all-packages.nix for that platform (meaning that it has a line # like curl = if stdenv ? curl then stdenv.curl else ...). // extraAttrs ); in stdenv-overridable