anchor.diff:    separateDebugInfo = stdenv.isLinux;
   
     nativeBuildInputs = [ cmake curl ];
  -  buildInputs = [ zlib curl openssl ]
  -    ++ lib.optionals (stdenv.isDarwin &&
  +
  +  buildInputs = [
  +    curl openssl zlib
  +    aws-c-common aws-c-event-stream aws-checksums
  +  ] ++ lib.optionals (stdenv.isDarwin &&
                           ((builtins.elem "text-to-speech" apis) ||
                            (builtins.elem "*" apis)))
            [ CoreAudio AudioToolbox ];
   
  -  cmakeFlags =
  -       lib.optional (!customMemoryManagement) "-DCUSTOM_MEMORY_MANAGEMENT=0"
  +  cmakeFlags = [
  +    "-DBUILD_DEPS=OFF"
  +    "-DCMAKE_SKIP_BUILD_RPATH=OFF"
  +  ] ++ lib.optional (!customMemoryManagement) "-DCUSTOM_MEMORY_MANAGEMENT=0"
       ++ lib.optional (stdenv.buildPlatform != stdenv.hostPlatform) "-DENABLE_TESTING=OFF"
       ++ lib.optional (apis != ["*"])
         "-DBUILD_ONLY=${lib.concatStringsSep ";" apis}";
  -
  -  enableParallelBuilding = true;
  -
  -  # Behold the escaping nightmare below on loaderVar o.O
  -  preBuild =
  -    ''
  -      # Ensure that the unit tests can find the *.so files.
  -      for i in testing-resources aws-cpp-sdk-*; do
  -        export ${loaderVar}=$(pwd)/$i:''${${loaderVar}}
  -      done
  -    '';
   
     preConfigure =
       ''
         rm aws-cpp-sdk-core-tests/aws/auth/AWSCredentialsProviderTest.cpp
       '';
   
  -  NIX_CFLAGS_COMPILE = [ "-Wno-error=noexcept-type" ];
  -
     __darwinAllowLocalNetworking = true;
   
  -  meta = {
  +  meta = with lib; {
       description = "A C++ interface for Amazon Web Services";
       homepage = https://github.com/awslabs/aws-sdk-cpp;
  -    license = lib.licenses.asl20;
  -    platforms = lib.platforms.linux ++ lib.platforms.darwin;
  -    maintainers = [ lib.maintainers.eelco ];
  +    license = licenses.asl20;
  +    platforms = platforms.unix;
  +    maintainers = with maintainers; [ eelco orivej ];
     };
   }
  
positive.code:   customMemoryManagement ? true
  }:
  
  let
    loaderVar =
      if stdenv.isLinux
        then "LD_LIBRARY_PATH"
        else if stdenv.isDarwin
          then "DYLD_LIBRARY_PATH"
          else throw "Unsupported system!";
  in stdenv.mkDerivation rec {
    name = "aws-sdk-cpp-${version}";
    version = "1.6.52";
  
    src = fetchFromGitHub {
      owner = "awslabs";
      repo = "aws-sdk-cpp";
      rev = version;
      sha256 = "17hyq6rv1xl3f70p2pfkkxm86gbfimq2pwpakv1wv3xjibmppbrf";
    };
  
    # FIXME: might be nice to put different APIs in different outputs
  
negative.code: { lib, stdenv, fetchFromGitHub, cmake, curl, openssl, zlib
  , aws-c-common, aws-c-event-stream, aws-checksums
  , CoreAudio, AudioToolbox
  , # Allow building a limited set of APIs, e.g. ["s3" "ec2"].
    apis ? ["*"]
  