9e8c5208a1
This condition used to be implicit in the sense that the stdenvOverrides uses pkgs_6, instead of pkgs_7 as its super set, and also that each stage of the compiler is build again the bootstrap packages of the previous stage, thus overriden by the stdenv.override function.
151 lines
5.4 KiB
Nix
151 lines
5.4 KiB
Nix
/* This file composes the Nix Packages collection. That is, it
|
|
imports the functions that build the various packages, and calls
|
|
them with appropriate arguments. The result is a set of all the
|
|
packages in the Nix Packages collection for some particular
|
|
platform. */
|
|
|
|
|
|
{ # The system (e.g., `i686-linux') for which to build the packages.
|
|
system ? builtins.currentSystem
|
|
|
|
, # The standard environment to use. Only used for bootstrapping. If
|
|
# null, the default standard environment is used.
|
|
bootStdenv ? null
|
|
|
|
, # Non-GNU/Linux OSes are currently "impure" platforms, with their libc
|
|
# outside of the store. Thus, GCC, GFortran, & co. must always look for
|
|
# files in standard system directories (/usr/include, etc.)
|
|
noSysDirs ? (system != "x86_64-freebsd" && system != "i686-freebsd"
|
|
&& system != "x86_64-solaris"
|
|
&& system != "x86_64-kfreebsd-gnu")
|
|
|
|
# More flags for the bootstrapping of stdenv.
|
|
, gccWithCC ? true
|
|
, gccWithProfiling ? true
|
|
|
|
, # Allow a configuration attribute set to be passed in as an
|
|
# argument. Otherwise, it's read from $NIXPKGS_CONFIG or
|
|
# ~/.nixpkgs/config.nix.
|
|
config ? null
|
|
|
|
, crossSystem ? null
|
|
, platform ? null
|
|
}:
|
|
|
|
|
|
let config_ = config; platform_ = platform; in # rename the function arguments
|
|
|
|
let
|
|
|
|
lib = import ../../lib;
|
|
|
|
# The contents of the configuration file found at $NIXPKGS_CONFIG or
|
|
# $HOME/.nixpkgs/config.nix.
|
|
# for NIXOS (nixos-rebuild): use nixpkgs.config option
|
|
config =
|
|
let
|
|
toPath = builtins.toPath;
|
|
getEnv = x: if builtins ? getEnv then builtins.getEnv x else "";
|
|
pathExists = name:
|
|
builtins ? pathExists && builtins.pathExists (toPath name);
|
|
|
|
configFile = getEnv "NIXPKGS_CONFIG";
|
|
homeDir = getEnv "HOME";
|
|
configFile2 = homeDir + "/.nixpkgs/config.nix";
|
|
|
|
configExpr =
|
|
if config_ != null then config_
|
|
else if configFile != "" && pathExists configFile then import (toPath configFile)
|
|
else if homeDir != "" && pathExists configFile2 then import (toPath configFile2)
|
|
else {};
|
|
|
|
in
|
|
# allow both:
|
|
# { /* the config */ } and
|
|
# { pkgs, ... } : { /* the config */ }
|
|
if builtins.isFunction configExpr
|
|
then configExpr { inherit pkgs; }
|
|
else configExpr;
|
|
|
|
# Allow setting the platform in the config file. Otherwise, let's use a reasonable default (pc)
|
|
|
|
platformAuto = let
|
|
platforms = (import ./platforms.nix);
|
|
in
|
|
if system == "armv6l-linux" then platforms.raspberrypi
|
|
else if system == "armv7l-linux" then platforms.armv7l-hf-multiplatform
|
|
else if system == "armv5tel-linux" then platforms.sheevaplug
|
|
else if system == "mips64el-linux" then platforms.fuloong2f_n32
|
|
else if system == "x86_64-linux" then platforms.pc64
|
|
else if system == "i686-linux" then platforms.pc32
|
|
else platforms.pcBase;
|
|
|
|
platform = if platform_ != null then platform_
|
|
else config.platform or platformAuto;
|
|
|
|
topLevelArguments = {
|
|
inherit system bootStdenv noSysDirs gccWithCC gccWithProfiling config
|
|
crossSystem platform lib;
|
|
};
|
|
|
|
# Allow packages to be overriden globally via the `packageOverrides'
|
|
# configuration option, which must be a function that takes `pkgs'
|
|
# as an argument and returns a set of new or overriden packages.
|
|
# The `packageOverrides' function is called with the *original*
|
|
# (un-overriden) set of packages, allowing packageOverrides
|
|
# attributes to refer to the original attributes (e.g. "foo =
|
|
# ... pkgs.foo ...").
|
|
pkgs = pkgsWithOverrides (self: config.packageOverrides or (super: {}));
|
|
|
|
# stdenvOverrides is used to avoid circular dependencies for building the
|
|
# standard build environment. This mechanism use the override mechanism to
|
|
# implement some staged compilation of the stdenv.
|
|
#
|
|
# We don't want stdenv overrides in the case of cross-building, or
|
|
# otherwise the basic overrided packages will not be built with the
|
|
# crossStdenv adapter.
|
|
stdenvOverrides = self: pkgs:
|
|
lib.optionalAttrs (crossSystem == null && pkgs.stdenv ? overrides)
|
|
(pkgs.stdenv.overrides pkgs);
|
|
|
|
# Return the complete set of packages, after applying the overrides
|
|
# returned by the `overrider' function (see above). Warning: this
|
|
# function is very expensive!
|
|
pkgsWithOverrides = overrider:
|
|
let
|
|
stdenvAdapters = self: super:
|
|
let res = import ../stdenv/adapters.nix pkgs; in res // {
|
|
stdenvAdapters = res;
|
|
};
|
|
|
|
trivialBuilders = self: super:
|
|
(import ../build-support/trivial-builders.nix { inherit lib; inherit (pkgs) stdenv; inherit (pkgs.xorg) lndir; });
|
|
|
|
stdenvDefault = self: super: (import ./stdenv.nix topLevelArguments) {} pkgs;
|
|
|
|
allPackagesArgs = topLevelArguments // { inherit pkgsWithOverrides; };
|
|
allPackages = self: super:
|
|
let res = import ./all-packages.nix allPackagesArgs res pkgs;
|
|
in res;
|
|
|
|
aliases = self: super: import ./aliases.nix super;
|
|
|
|
customOverrides = self: super:
|
|
lib.optionalAttrs (bootStdenv == null) (overrider self super);
|
|
|
|
pkgs_1 = {};
|
|
pkgs_2 = pkgs_1 // stdenvAdapters pkgs pkgs_1;
|
|
pkgs_3 = pkgs_2 // trivialBuilders pkgs pkgs_2;
|
|
pkgs_4 = pkgs_3 // stdenvDefault pkgs pkgs_3;
|
|
pkgs_5 = pkgs_4 // allPackages pkgs pkgs_4;
|
|
pkgs_6 = pkgs_5 // aliases pkgs pkgs_5;
|
|
|
|
pkgs_7 = pkgs_6 // customOverrides pkgs pkgs_6;
|
|
|
|
# The overriden, final packages.
|
|
pkgs = pkgs_7 // stdenvOverrides pkgs pkgs_6;
|
|
in pkgs;
|
|
|
|
in
|
|
pkgs
|