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nixpkgs/pkgs/stdenv/default.nix
John Ericson 4751d9e5ad top-level: turn the screw
- Non-cross stdenvs are honest and assert that `crossSystem` is null

 - `crossSystem` is a mandatory argument to top-level/stage.nix, just like
   `system` and `platform`

 - Broken default arguments on stdenvs for testing are gone.

 - All stdenvs (but little-used stdenvNix) take the same arguments for easy
   testing.
2016-12-01 11:24:33 -05:00

67 lines
2.3 KiB
Nix

# This file defines the various standard build environments.
#
# On Linux systems, the standard build environment consists of
# Nix-built instances glibc and the `standard' Unix tools, i.e., the
# Posix utilities, the GNU C compiler, and so on. On other systems,
# we use the native C library.
{ # Args just for stdenvs' usage
lib, allPackages
# Args to pass on to `allPacakges` too
, system, platform, crossSystem, config
} @ args:
let
# The native (i.e., impure) build environment. This one uses the
# tools installed on the system outside of the Nix environment,
# i.e., the stuff in /bin, /usr/bin, etc. This environment should
# be used with care, since many Nix packages will not build properly
# with it (e.g., because they require GNU Make).
inherit (import ./native args) stdenvNative;
stdenvNativePkgs = allPackages {
inherit system platform crossSystem config;
allowCustomOverrides = false;
stdenv = stdenvNative;
noSysDirs = false;
};
# The Nix build environment.
stdenvNix = assert crossSystem == null; import ./nix {
inherit config lib;
stdenv = stdenvNative;
pkgs = stdenvNativePkgs;
};
inherit (import ./freebsd args) stdenvFreeBSD;
# Linux standard environment.
inherit (import ./linux args) stdenvLinux;
inherit (import ./darwin args) stdenvDarwin;
inherit (import ./cross args) stdenvCross stdenvCrossiOS;
inherit (import ./custom args) stdenvCustom;
# Select the appropriate stdenv for the platform `system'.
in
if crossSystem != null then
if crossSystem.useiOSCross or false then stdenvCrossiOS
else stdenvCross else
if config ? replaceStdenv then stdenvCustom else
if system == "i686-linux" then stdenvLinux else
if system == "x86_64-linux" then stdenvLinux else
if system == "armv5tel-linux" then stdenvLinux else
if system == "armv6l-linux" then stdenvLinux else
if system == "armv7l-linux" then stdenvLinux else
if system == "mips64el-linux" then stdenvLinux else
if system == "powerpc-linux" then /* stdenvLinux */ stdenvNative else
if system == "x86_64-darwin" then stdenvDarwin else
if system == "x86_64-solaris" then stdenvNix else
if system == "i686-cygwin" then stdenvNative else
if system == "x86_64-cygwin" then stdenvNative else
if system == "x86_64-freebsd" then stdenvFreeBSD else
stdenvNative