101 lines
2.9 KiB
Nix
101 lines
2.9 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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# stdenvType exists to support multiple kinds of stdenvs on the same
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# system, e.g., cygwin and mingw builds on i686-cygwin. Most people
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# can ignore it.
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{system, stdenvType ? system, allPackages}:
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assert system != "i686-cygwin" -> system == stdenvType;
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rec {
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gccWrapper = import ../build-support/gcc-wrapper;
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genericStdenv = import ./generic;
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# Trivial environment used for building other environments.
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stdenvInitial = (import ./initial) {
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name = "stdenv-initial";
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inherit system;
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};
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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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stdenvNative = (import ./native) {
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stdenv = stdenvInitial;
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inherit genericStdenv gccWrapper;
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};
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stdenvNativePkgs = allPackages {
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bootStdenv = 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) (rec {
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stdenv = if system == "i686-darwin" then stdenvDarwin else stdenvNative; # !!! hack
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pkgs = allPackages {
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bootStdenv = removeAttrs stdenv ["gcc"]; # Hack
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noSysDirs = false;
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};
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});
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# Linux standard environment.
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stdenvLinux = (import ./linux {inherit system allPackages;}).stdenvLinux;
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# Darwin (Mac OS X) standard environment. Very simple for now
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# (essentially it's just the native environment).
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stdenvDarwin = (import ./darwin) {
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stdenv = stdenvInitial;
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inherit genericStdenv gccWrapper;
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};
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# FreeBSD standard environment. Right now this is more or less the
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# same as the native environemnt. Eventually we'll want a pure
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# environment similar to stdenvLinux.
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stdenvFreeBSD = (import ./freebsd) {
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stdenv = stdenvInitial;
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inherit genericStdenv gccWrapper;
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};
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# Cygwin standard environment.
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stdenvCygwin = (import ./cygwin) {
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stdenv = stdenvInitial;
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inherit genericStdenv gccWrapper;
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};
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# MinGW/MSYS standard environment.
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stdenvMinGW = (import ./mingw) {
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inherit system;
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};
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# Select the appropriate stdenv for the platform `system'.
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stdenv =
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if stdenvType == "i686-linux" then stdenvLinux
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else if stdenvType == "i686-freebsd" then stdenvFreeBSD
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else if stdenvType == "i686-cygwin" then stdenvCygwin
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else if stdenvType == "i686-mingw" then stdenvMinGW
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else if stdenvType == "powerpc-darwin" then stdenvDarwin
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else if stdenvType == "i686-darwin" then stdenvNix
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else stdenvNative;
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}
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