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{ system, name, preHook ? null, postHook ? null, initialPath, gcc, shell
, param1 ? "", param2 ? "", param3 ? "", param4 ? "", param5 ? ""
, extraAttrs ? {}, overrides ? {}
, # The `fetchurl' to use for downloading curl and its dependencies
# (see all-packages.nix).
fetchurlBoot
}:
let
lib = import ../../lib;
stdenvGenerator = setupScript: rec {
# The stdenv that we are producing.
result =
derivation {
inherit system name;
builder = shell;
args = ["-e" ./builder.sh];
setup = setupScript;
inherit preHook postHook initialPath gcc shell;
# TODO: make this more elegant.
inherit param1 param2 param3 param4 param5;
propagatedUserEnvPkgs = [gcc] ++
lib.filter lib.isDerivation initialPath;
}
// {
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:
(derivation (
(removeAttrs attrs ["meta" "passthru" "crossAttrs"])
// (let
buildInputs = if attrs ? buildInputs then attrs.buildInputs
else [];
buildNativeInputs = if attrs ? buildNativeInputs then
attrs.buildNativeInputs else [];
propagatedBuildInputs = if attrs ? propagatedBuildInputs then
attrs.propagatedBuildInputs else [];
propagatedBuildNativeInputs = if attrs ?
propagatedBuildNativeInputs then
attrs.propagatedBuildNativeInputs else [];
crossConfig = if (attrs ? crossConfig) then attrs.crossConfig else
null;
in
{
builder = if attrs ? realBuilder then attrs.realBuilder else shell;
args = if attrs ? args then attrs.args else
["-e" (if attrs ? builder then attrs.builder else ./default-builder.sh)];
stdenv = result;
system = result.system;
# That build by the cross compiler
buildInputs = lib.optionals (crossConfig != null) buildInputs;
propagatedBuildInputs = lib.optionals (crossConfig != null)
propagatedBuildInputs;
# That build by the usual native compiler
buildNativeInputs = buildNativeInputs ++ lib.optionals
(crossConfig == null) buildInputs;
propagatedBuildNativeInputs = propagatedBuildNativeInputs ++
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.
//
{ meta = if attrs ? meta then attrs.meta else {}; }
# Pass through extra attributes that are not inputs, but
# should be made available to Nix expressions using the
# derivation (e.g., in assertions).
//
(if attrs ? passthru then attrs.passthru else {});
# Utility flags to test the type of platform.
isDarwin = result.system == "i686-darwin"
|| result.system == "powerpc-darwin"
|| result.system == "x86_64-darwin";
isLinux = result.system == "i686-linux"
|| result.system == "x86_64-linux"
|| result.system == "powerpc-linux"
|| result.system == "armv5tel-linux"
|| result.system == "ict_loongson-2_v0.3_fpu_v0.1-linux";
isSunOS = result.system == "i386-sunos";
isCygwin = result.system == "i686-cygwin";
isFreeBSD = result.system == "i686-freebsd"
|| result.system == "x86_64-freebsd";
isOpenBSD = result.system == "i686-openbsd"
|| result.system == "x86_64-openbsd";
isBSD = result.system == "i686-freebsd"
|| result.system == "x86_64-freebsd"
|| result.system == "i686-openbsd"
|| result.system == "x86_64-openbsd";
isi686 = result.system == "i686-linux"
|| result.system == "i686-darwin"
|| result.system == "i686-freebsd"
|| result.system == "i686-openbsd"
|| result.system == "i386-sunos";
isx86_64 = result.system == "x86_64-linux"
|| result.system == "x86_64-darwin"
|| result.system == "x86_64-freebsd"
|| result.system == "x86_64-openbsd";
is64bit = result.system == "x86_64-linux"
|| result.system == "x86_64-darwin";
isMips = result.system == "ict_loongson-2_v0.3_fpu_v0.1-linux"
|| result.system == "mips-linux"
|| result.system == "mips64-linux";
isArm = result.system == "armv5tel-linux";
# Utility function: allow stdenv to be easily regenerated with
# a different setup script. (See all-packages.nix for an
# example.)
regenerate = stdenvGenerator;
# 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;
}.result;
in stdenvGenerator ./setup.sh
|