FROM ubuntu:18.04
RUN dpkg --add-architecture i386
RUN \
  apt-get update && \
  apt-get install -y g++-7-multilib && \
  update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-7 60
RUN apt-get update
RUN apt-get -y upgrade
RUN apt-get install --no-install-recommends -y ccache cmake curl ca-certificates libsdl2-dev:i386 pkg-config:i386  libjansson-dev:i386 libspeex-dev:i386 libspeexdsp-dev:i386 libcurl4-openssl-dev:i386 libcrypto++-dev:i386 libfontconfig1-dev:i386 libfreetype6-dev:i386 libpng-dev:i386 libzip-dev:i386 libssl-dev:i386 ninja-build libicu-dev:i386