anchor.diff:  FROM ubuntu:xenial
   
  -RUN apt-get -y update 
  +RUN apt-get -y update
   
   # Install wine and related packages
  -RUN dpkg --add-architecture i386 
  +RUN dpkg --add-architecture i386
   RUN apt-get update && apt-get install -y --no-install-recommends git ca-certificates sudo software-properties-common
   
   RUN add-apt-repository ppa:ubuntu-wine/ppa && apt-get update \
  
positive.code:     && export KOLIBRI_BUILD_VERSION=$WHL_FILE_VERSION \
      && wine inno-compiler/ISCC.exe installer-source/KolibriSetupScript.iss
  
  CMD cp /kolibri/kolibri-installers/windows/*.exe /installer/
negative.code: 
  # Build kolibri windows installer.
  RUN mkdir /installer/
  RUN cd /kolibri/kolibri-installer-windows/windows \
      && WHL_FILE=$(find ./ -name \*.whl) \
      && WHL_FILE=$(basename $WHL_FILE) \
      && WHL_FILE=${WHL_FILE:8} \
  