fix build issue

# Install build dependencies

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COPY apt_preferences /etc/apt/preferences

RUN apt-get -qq update

RUN apt-get install -y imagemagick libwxgtk3.0-dev openjdk-8-jdk

RUN echo 'deb http://deb.debian.org/debian sid main' >> /etc/apt/sources.list

RUN echo 'deb http://deb.debian.org/debian experimental main' >> /etc/apt/sources.list

COPY apt_preferences /etc/apt/preferences

RUN apt-get -qq update

RUN apt-get -qqy upgrade

RUN apt-get install -y bc bison bsdmainutils build-essential ccache cgpt cron \

      curl flex g++-multilib gcc-multilib git gnupg gperf imagemagick \

RUN apt-get install -y openjdk-7-jdk

RUN apt-get install -f -y bc bison bsdmainutils build-essential ccache cgpt cron \

      curl flex g++-multilib gcc-multilib git gnupg gperf \

      lib32ncurses5-dev lib32readline-dev lib32z1-dev libesd0-dev liblz4-tool \

      libncurses5-dev libsdl1.2-dev libssl-dev libwxgtk3.0-dev libxml2 \

      libxml2-utils lsof lzop maven openjdk-7-jdk openjdk-8-jdk pngcrush \

      libncurses5-dev libsdl1.2-dev libssl-dev libxml2 \

      libxml2-utils lsof lzop maven pngcrush \

      procps python rsync schedtool squashfs-tools wget xdelta3 xsltproc yasm \

      zip zlib1g-dev