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|
let lib = import ../../../lib; in lib.makeOverridable (
{ system, name ? "stdenv", preHook ? "", initialPath, gcc, shell
, extraAttrs ? {}, overrides ? (pkgs: {}), config
, # The `fetchurl' to use for downloading curl and its dependencies
# (see all-packages.nix).
fetchurlBoot
, setupScript ? ./setup.sh
, extraBuildInputs ? []
, skipPaxMarking ? false
}:
let
allowUnfree = config.allowUnfree or false || builtins.getEnv "NIXPKGS_ALLOW_UNFREE" == "1";
# Alow granular checks to allow only some unfree packages
# Example:
# {pkgs, ...}:
# {
# allowUnfree = false;
# allowUnfreePredicate = (x: pkgs.lib.hasPrefix "flashplayero-" x.name);
# }
allowUnfreePredicate = config.allowUnfreePredicate or (x: false);
allowBroken = config.allowBroken or false || builtins.getEnv "NIXPKGS_ALLOW_BROKEN" == "1";
unsafeGetAttrPos = builtins.unsafeGetAttrPos or (n: as: null);
# The stdenv that we are producing.
result =
derivation {
inherit system name;
builder = shell;
args = ["-e" ./builder.sh];
/* TODO: special-cased @var@ substitutions are ugly.
However, using substituteAll* from setup.sh seems difficult,
as setup.sh can't be directly sourced.
Suggestion: split similar utility functions into a separate script.
*/
setup = setupScript;
inherit preHook initialPath gcc shell;
# Whether we should run paxctl to pax-mark binaries
needsPax = result.isLinux && !skipPaxMarking;
propagatedUserEnvPkgs = [gcc] ++
lib.filter lib.isDerivation initialPath;
}
// rec {
meta = {
description = "The default build environment for Unix packages in Nixpkgs";
};
# Add a utility function to produce derivations that use this
# stdenv and its shell.
mkDerivation = attrs:
let
pos =
if attrs.meta.description or null != null then
unsafeGetAttrPos "description" attrs.meta
else
unsafeGetAttrPos "name" attrs;
pos' = if pos != null then "‘" + pos.file + ":" + toString pos.line + "’" else "«unknown-file»";
in
if !allowUnfree && (let l = lib.lists.toList attrs.meta.license or []; in lib.lists.elem "unfree" l || lib.lists.elem "unfree-redistributable" l) && !(allowUnfreePredicate attrs) then
throw ''
Package ‘${attrs.name}’ in ${pos'} has an unfree license, refusing to evaluate. You can set
{ nixpkgs.config.allowUnfree = true; }
in configuration.nix to override this. If you use Nix standalone, you can add
{ allowUnfree = true; }
to ~/.nixpkgs/config.nix.''
else if !allowBroken && attrs.meta.broken or false then
throw "you can't use package ‘${attrs.name}’ in ${pos'} because it has been marked as broken"
else if !allowBroken && attrs.meta.platforms or null != null && !lib.lists.elem result.system attrs.meta.platforms then
throw "the package ‘${attrs.name}’ in ${pos'} is not supported on ‘${result.system}’"
else
lib.addPassthru (derivation (
(removeAttrs attrs ["meta" "passthru" "crossAttrs"])
// (let
buildInputs = attrs.buildInputs or [];
nativeBuildInputs = attrs.nativeBuildInputs or [];
propagatedBuildInputs = attrs.propagatedBuildInputs or [];
propagatedNativeBuildInputs = attrs.propagatedNativeBuildInputs or [];
crossConfig = attrs.crossConfig or null;
in
{
builder = attrs.realBuilder or shell;
args = attrs.args or ["-e" (attrs.builder or ./default-builder.sh)];
stdenv = result;
system = result.system;
userHook = config.stdenv.userHook or null;
__ignoreNulls = true;
# Inputs built by the cross compiler.
buildInputs = lib.optionals (crossConfig != null) (buildInputs ++ extraBuildInputs);
propagatedBuildInputs = lib.optionals (crossConfig != null) propagatedBuildInputs;
# Inputs built by the usual native compiler.
nativeBuildInputs = nativeBuildInputs ++ lib.optionals (crossConfig == null) (buildInputs ++ extraBuildInputs);
propagatedNativeBuildInputs = propagatedNativeBuildInputs ++
lib.optionals (crossConfig == null) propagatedBuildInputs;
}))) (
{
# The meta attribute is passed in the resulting attribute set,
# but it's not part of the actual derivation, i.e., it's not
# passed to the builder and is not a dependency. But since we
# include it in the result, it *is* available to nix-env for
# queries. We also a meta.position attribute here to
# identify the source location of the package.
meta = attrs.meta or {} // (if pos != null then {
position = pos.file + ":" + (toString pos.line);
} else {});
passthru = attrs.passthru or {};
} //
# Pass through extra attributes that are not inputs, but
# should be made available to Nix expressions using the
# derivation (e.g., in assertions).
(attrs.passthru or {}));
# Utility flags to test the type of platform.
isDarwin = system == "x86_64-darwin";
isLinux = system == "i686-linux"
|| system == "x86_64-linux"
|| system == "powerpc-linux"
|| system == "armv5tel-linux"
|| system == "armv6l-linux"
|| system == "armv7l-linux"
|| system == "mips64el-linux";
isGNU = system == "i686-gnu"; # GNU/Hurd
isGlibc = isGNU # useful for `stdenvNative'
|| isLinux
|| system == "x86_64-kfreebsd-gnu";
isSunOS = system == "i686-solaris"
|| system == "x86_64-solaris";
isCygwin = system == "i686-cygwin";
isFreeBSD = system == "i686-freebsd"
|| system == "x86_64-freebsd";
isOpenBSD = system == "i686-openbsd"
|| system == "x86_64-openbsd";
isBSD = system == "i686-freebsd"
|| system == "x86_64-freebsd"
|| system == "i686-openbsd"
|| system == "x86_64-openbsd";
isi686 = system == "i686-linux"
|| system == "i686-gnu"
|| system == "i686-freebsd"
|| system == "i686-openbsd"
|| system == "i386-sunos";
isx86_64 = system == "x86_64-linux"
|| system == "x86_64-darwin"
|| system == "x86_64-freebsd"
|| system == "x86_64-openbsd"
|| system == "x86_64-solaris";
is64bit = system == "x86_64-linux"
|| system == "x86_64-darwin"
|| system == "x86_64-freebsd"
|| system == "x86_64-openbsd"
|| system == "x86_64-solaris";
isMips = system == "mips-linux"
|| system == "mips64el-linux";
isArm = system == "armv5tel-linux"
|| system == "armv6l-linux"
|| system == "armv7l-linux";
# For convenience, bring in the library functions in lib/ so
# packages don't have to do that themselves.
inherit lib;
inherit fetchurlBoot;
inherit overrides;
}
# 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 result)
|