anchor.diff:      ln -sv /usr/sbin/dtrace $out/bin
     '';
   
  -  version = if unstableVersion then "0.11.13" else "0.10.33";
  +  version = if unstableVersion then "0.11.13" else "0.12.0";
   
     # !!! Should we also do shared libuv?
     deps = {
  
positive.code: { stdenv, fetchurl, openssl, python, zlib, v8, utillinux, http-parser, c-ares
  , pkgconfig, runCommand, which, unstableVersion ? false 
  }:
  
  
negative.code:     # inherit v8
    } // (stdenv.lib.optionalAttrs (!stdenv.isDarwin) {
      inherit http-parser;
    });
  
    sharedConfigureFlags = name: [
      "--shared-${name}"
  