anchor.diff:      libunwind
       libuuid
       openssl
  -  ];
  +  ] ++ lib.optionals stdenv.isLinux [
  +    lttng-ust_2_12
  +  ]);
   
     src = fetchurl {
       url = builtins.getAttr type urls;
  
positive.code:   inherit pname version;
  
    # Some of these dependencies are `dlopen()`ed.
    rpath = lib.makeLibraryPath [
      stdenv.cc.cc
      lttng-ust_2_12
      zlib
  
      curl
  
negative.code: }:
  
  assert builtins.elem type [ "aspnetcore" "runtime" "sdk"];
  { lib
  , stdenv
  , fetchurl
  , libunwind
  , openssl
  