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FROM ubuntu:16.04

RUN apt-get -y update  \
  && apt-get -y install bzip2 bc cpio g++ make patch perl python unzip rsync wget locales \
  && rm -rf /var/lib/apt/lists/*

RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && \
    locale-gen
ENV LANG en_US.UTF-8
ENV LANGUAGE en_US:en
ENV LC_ALL en_US.UTF-8

RUN useradd -d /home/trimui -m -s /bin/bash -U trimui
RUN ln -s /home/trimui/buildroot/output/host/usr /opt/trimui-toolchain

USER trimui
WORKDIR /home/trimui

ENV BR_VER 2016.05
ENV BR_DIR buildroot-${BR_VER}
ENV BR_TAR ${BR_DIR}.tar.bz2
ENV BR_URL https://buildroot.org/downloads/${BR_TAR}
RUN echo ${BR_DIR} && wget ${BR_URL} && ls -l && tar xf ${BR_TAR} && rm -f ${BR_TAR}
RUN ln -s ${BR_DIR} buildroot

WORKDIR /home/trimui/buildroot
COPY libpng12.patch libpng12.patch
RUN patch -p0 < libpng12.patch

COPY defconfig defconfig

RUN make defconfig BR2_DEFCONFIG=./defconfig && make toolchain libpng sdl sdl_image bzip2

VOLUME /home/trimui/workspace
WORKDIR /home/trimui/workspace

CMD ["/bin/bash"]