anchor.diff:  # @see https://github.com/ueno/libskk
   # v1.0.0
   #
  -# Copyright (c) 2017 Loreto Parisi - https://github.com/loretoparisi/docker
  +# Copyright (c) 2018 Loreto Parisi - https://github.com/loretoparisi/docker
   #
   
  -FROM ubuntu:16.04
  -
  +FROM ubuntu:18.04
   
   MAINTAINER Loreto Parisi loretoparisi@gmail.com
   
  
positive.code: # install dependencies
  RUN \
  	apt-get update && apt-get install -y \
  	apt-utils \
  	autoconf \
  	autogen \
  	automake \
  	libtool \
  	autopoint \
  	gettext \
  	libgee-0.8* \
  	libjson-glib-dev \
  	libxkbcommon-dev
  
  RUN apt-get install -y \
  	git	\
  	wget
  
  # manually updated gettext to latest
  RUN \
  	wget http://archive.ubuntu.com/ubuntu/pool/main/g/gettext/gettext_0.19.8.1-4ubuntu1_amd64.deb && \
  	dpkg -i gettext_0.19.8.1-4ubuntu1_amd64.deb && \
  	apt-get update && \
  	apt show gettext
  
  # build libskk
  RUN \
  	git clone https://github.com/ueno/libskk.git && \
  	export PATH=${PATH}:/usr/local/opt/gettext/bin && \
  
negative.code: 	make && \
  	make install
  
  ENV DICT /root/dict
  
  # defaults command
  