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# 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.
# stdenvType exists to support multiple kinds of stdenvs on the same
# system, e.g., cygwin and mingw builds on i686-cygwin. Most people
# can ignore it.
{system, stdenvType ? system, allPackages}:
assert system != "i686-cygwin" -> system == stdenvType;
rec {
gccWrapper = import ../build-support/gcc-wrapper;
genericStdenv = import ./generic;
# Trivial environment used for building other environments.
stdenvInitial = (import ./initial) {
name = "stdenv-initial";
inherit system;
};
# 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).
stdenvNative = (import ./native) {
stdenv = stdenvInitial;
inherit genericStdenv gccWrapper;
};
stdenvNativePkgs = allPackages {
bootStdenv = stdenvNative;
noSysDirs = false;
};
# The Nix build environment.
stdenvNix = (import ./nix) (rec {
stdenv = if system == "i686-darwin" then stdenvPowerpcDarwin else stdenvNative; # !!! hack
pkgs = allPackages {
inherit system;
bootStdenv = removeAttrs stdenv ["gcc"]; # Hack
noSysDirs = false;
};
});
# Linux standard environment.
stdenvLinux = (import ./linux {inherit system allPackages;}).stdenvLinux;
# powerpc-darwin (Mac OS X) standard environment. Very simple for now
# (essentially it's just the native environment).
stdenvPowerpcDarwin = (import ./powerpc-darwin) {
stdenv = stdenvInitial;
inherit genericStdenv gccWrapper;
};
# FreeBSD standard environment. Right now this is more or less the
# same as the native environemnt. Eventually we'll want a pure
# environment similar to stdenvLinux.
stdenvFreeBSD = (import ./freebsd) {
stdenv = stdenvInitial;
inherit genericStdenv gccWrapper;
};
# Cygwin standard environment.
stdenvCygwin = (import ./cygwin) {
stdenv = stdenvInitial;
inherit genericStdenv gccWrapper;
};
# MinGW/MSYS standard environment.
stdenvMinGW = (import ./mingw) {
inherit system;
};
# Select the appropriate stdenv for the platform `system'.
stdenv =
if stdenvType == "i686-linux" then stdenvLinux else
if stdenvType == "x86_64-linux" then stdenvLinux else
if stdenvType == "powerpc-linux" then stdenvLinux else
if stdenvType == "i686-freebsd" then stdenvFreeBSD else
if stdenvType == "i686-cygwin" then stdenvCygwin else
if stdenvType == "i686-mingw" then stdenvMinGW else
if stdenvType == "powerpc-darwin" then stdenvPowerpcDarwin else
if stdenvType == "i686-darwin" then stdenvNix else
stdenvNative;
}
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