nixpkgs/lib/systems/doubles.nix

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let
lists = import ../lists.nix;
parse = import ./parse.nix;
inherit (import ./inspect.nix) predicates;
inherit (import ../attrsets.nix) matchAttrs;
all = [
"aarch64-linux"
"armv5tel-linux" "armv6l-linux" "armv7l-linux"
"mips64el-linux"
"i686-cygwin" "i686-freebsd" "i686-linux" "i686-netbsd" "i686-openbsd"
"x86_64-cygwin" "x86_64-darwin" "x86_64-freebsd" "x86_64-linux"
"x86_64-netbsd" "x86_64-openbsd" "x86_64-solaris"
];
allParsed = map parse.mkSystemFromString all;
filterDoubles = f: map parse.doubleFromSystem (lists.filter f allParsed);
in rec {
inherit all;
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allBut = platforms: lists.filter (x: !(builtins.elem x platforms)) all;
none = [];
arm = filterDoubles predicates.isArm32;
i686 = filterDoubles predicates.isi686;
mips = filterDoubles predicates.isMips;
x86_64 = filterDoubles predicates.isx86_64;
cygwin = filterDoubles predicates.isCygwin;
darwin = filterDoubles predicates.isDarwin;
freebsd = filterDoubles predicates.isFreeBSD;
# Should be better, but MinGW is unclear, and HURD is bit-rotted.
gnu = filterDoubles (matchAttrs { kernel = parse.kernels.linux; abi = parse.abis.gnu; });
illumos = filterDoubles predicates.isSunOS;
linux = filterDoubles predicates.isLinux;
netbsd = filterDoubles predicates.isNetBSD;
openbsd = filterDoubles predicates.isOpenBSD;
unix = filterDoubles predicates.isUnix;
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mesaPlatforms = ["i686-linux" "x86_64-linux" "x86_64-darwin" "armv5tel-linux" "armv6l-linux" "armv7l-linux" "aarch64-linux"];
}