anchor.diff:  # The post kernel build process
   
   ENV ROOTFS          /rootfs
  +ENV VBOX_VERSION    4.3.12
   ENV TCL_REPO_BASE   http://tinycorelinux.net/5.x/x86
   ENV TCZ_DEPS        iptables \
                       iproute2 \
  
positive.code:         rm -f /tmp/$dep.tcz ;\
      done
  
  # get generate_cert
  RUN curl -L -o $ROOTFS/usr/local/bin/generate_cert https://github.com/SvenDowideit/generate_cert/releases/download/0.1/generate_cert-0.1-linux-386/ && \
      chmod +x $ROOTFS/usr/local/bin/generate_cert
  
negative.code: # Prepare the ISO directory with the kernel
  RUN cp -v /linux-kernel/arch/x86_64/boot/bzImage /tmp/iso/boot/vmlinuz64
  
  # Build VBox guest additions
  RUN mkdir -p /vboxguest && \
      cd /vboxguest && \
      curl -L -o vboxguest.iso http://download.virtualbox.org/virtualbox/${VBOX_VERSION}/VBoxGuestAdditions_${VBOX_VERSION}.iso && \
      7z x vboxguest.iso -ir'!VBoxLinuxAdditions.run' && \
      sh VBoxLinuxAdditions.run --noexec --target . && \
      mkdir x86 && cd x86 && tar xvjf ../VBoxGuestAdditions-x86.tar.bz2 && cd .. && \
      mkdir amd64 && cd amd64 && tar xvjf ../VBoxGuestAdditions-amd64.tar.bz2 && cd .. && \
      cd amd64/src/vboxguest-${VBOX_VERSION} && KERN_DIR=/linux-kernel/ make && cd ../../.. && \
      cp amd64/src/vboxguest-${VBOX_VERSION}/*.ko $ROOTFS/lib/modules/$KERNEL_VERSION-tinycore64 && \
      mkdir -p $ROOTFS/sbin && cp x86/lib/VBoxGuestAdditions/mount.vboxsf $ROOTFS/sbin/
  
  # Download the rootfs, don't unpack it though:
  RUN curl -L -o /tcl_rootfs.gz $TCL_REPO_BASE/release/distribution_files/rootfs.gz
  
  