{ newScope, stdenv, libstdcxxHook, isl, fetchurl, overrideCC, wrapCCWith , buildLlvmTools # tools, but from the previous stage, for cross , targetLlvmLibraries # libraries, but from the next stage, for cross }: let version = "3.9.1"; fetch = fetch_v version; fetch_v = ver: name: sha256: fetchurl { url = "http://llvm.org/releases/${version}/${name}-${ver}.src.tar.xz"; inherit sha256; }; compiler-rt_src = fetch "compiler-rt" "16gc2gdmp5c800qvydrdhsp0bzb97s8wrakl6i8a4lgslnqnf2fk"; clang-tools-extra_src = fetch "clang-tools-extra" "0d9nh7j7brbh9avigcn69dlaihsl9p3cf9s45mw6fxzzvrdvd999"; tools = stdenv.lib.makeExtensible (tools: let callPackage = newScope (tools // { inherit stdenv isl version fetch; }); in { llvm = callPackage ./llvm.nix { inherit compiler-rt_src; }; clang-unwrapped = callPackage ./clang { inherit clang-tools-extra_src; }; libclang = tools.clang-unwrapped.lib; clang = if stdenv.cc.isGNU then tools.libstdcxxClang else tools.libcxxClang; libstdcxxClang = wrapCCWith { cc = tools.clang-unwrapped; extraPackages = [ libstdcxxHook ]; }; libcxxClang = wrapCCWith { cc = tools.clang-unwrapped; extraPackages = [ targetLlvmLibraries.libcxx targetLlvmLibraries.libcxxabi ]; }; lldb = callPackage ./lldb.nix {}; }); libraries = stdenv.lib.makeExtensible (libraries: let callPackage = newScope (libraries // buildLlvmTools // { inherit stdenv isl version fetch; }); in { stdenv = overrideCC stdenv buildLlvmTools.clang; libcxxStdenv = overrideCC stdenv buildLlvmTools.libcxxClang; libcxx = callPackage ./libc++ {}; libcxxabi = callPackage ./libc++abi.nix {}; }); in { inherit tools libraries; } // libraries // tools