anchor.diff:    preBuild = ''
       cp -r $deps deps
       chmod -R +w deps
  -    patchShebangs deps
  +    patchShebangs .
     '';
   
     postInstall = ''
  
positive.code:     homepage = "https://www.ejabberd.im";
      platforms = platforms.linux;
      maintainers = with maintainers; [ sander abbradar ];
      broken = withElixir;
    };
  }
  
negative.code: , withPam ? false, pam
  , withZlib ? true, zlib
  , withRiak ? false
  , withIconv ? true
  , withTools ? false
  , withRedis ? false
  