anchor.diff:      mv etc $out/
       cp ${./logging.properties-journal} $out/etc/jitsi/jicofo/logging.properties-journal
       ln -s $out/share/jicofo/jicofo.sh $out/bin/jicofo
  +    runHook postInstall
     '';
   
     passthru.tests = {
  
positive.code:   unpackCmd = "${dpkg}/bin/dpkg-deb -x $src debcontents";
  
    installPhase = ''
      substituteInPlace usr/share/jicofo/jicofo.sh \
        --replace "exec java" "exec ${jre_headless}/bin/java"
  
  
negative.code: { lib, stdenv, fetchurl, dpkg, jre_headless, nixosTests }:
  
  let
    pname = "jicofo";
  