forked from mirrors/nixpkgs
39753f5360
This makes the flow of data easier to understand. There's little downside because the args in question are already inspected by the stdenvs. cross-compiling in particular is simpler because we don't need to worry about overriding the config closed over by `allPackages`.
67 lines
2.6 KiB
Nix
67 lines
2.6 KiB
Nix
# This file defines the various standard build environments.
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#
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# On Linux systems, the standard build environment consists of
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# Nix-built instances glibc and the `standard' Unix tools, i.e., the
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# Posix utilities, the GNU C compiler, and so on. On other systems,
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# we use the native C library.
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{ # Args just for stdenvs' usage
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lib, allPackages
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# Args to pass on to `allPacakges` too
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, system, platform, crossSystem, config
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}:
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let
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# The native (i.e., impure) build environment. This one uses the
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# tools installed on the system outside of the Nix environment,
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# i.e., the stuff in /bin, /usr/bin, etc. This environment should
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# be used with care, since many Nix packages will not build properly
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# with it (e.g., because they require GNU Make).
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inherit (import ./native { inherit system allPackages config; }) stdenvNative;
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stdenvNativePkgs = allPackages {
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inherit system platform crossSystem config;
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allowCustomOverrides = false;
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stdenv = stdenvNative;
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noSysDirs = false;
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};
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# The Nix build environment.
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stdenvNix = import ./nix {
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inherit config lib;
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stdenv = stdenvNative;
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pkgs = stdenvNativePkgs;
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};
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inherit (import ./freebsd { inherit system allPackages platform config; }) stdenvFreeBSD;
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# Linux standard environment.
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inherit (import ./linux { inherit system allPackages platform config lib; }) stdenvLinux;
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inherit (import ./darwin { inherit system allPackages platform config; }) stdenvDarwin;
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inherit (import ./cross { inherit system allPackages platform crossSystem config lib; }) stdenvCross stdenvCrossiOS;
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inherit (import ./custom { inherit system allPackages platform crossSystem config lib; }) stdenvCustom;
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# Select the appropriate stdenv for the platform `system'.
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in
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if crossSystem != null then
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if crossSystem.useiOSCross or false then stdenvCrossiOS
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else stdenvCross else
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if config ? replaceStdenv then stdenvCustom else
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if system == "i686-linux" then stdenvLinux else
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if system == "x86_64-linux" then stdenvLinux else
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if system == "armv5tel-linux" then stdenvLinux else
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if system == "armv6l-linux" then stdenvLinux else
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if system == "armv7l-linux" then stdenvLinux else
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if system == "mips64el-linux" then stdenvLinux else
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if system == "powerpc-linux" then /* stdenvLinux */ stdenvNative else
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if system == "x86_64-darwin" then stdenvDarwin else
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if system == "x86_64-solaris" then stdenvNix else
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if system == "i686-cygwin" then stdenvNative else
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if system == "x86_64-cygwin" then stdenvNative else
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if system == "x86_64-freebsd" then stdenvFreeBSD else
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stdenvNative
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