anchor.diff:  COPY ./curl-7.46.0.tar.gz /tmp/curl-7.46.0.tar.gz
   
   RUN cd /tmp && tar -xzf /tmp/curl-7.46.0.tar.gz && \
  -    cd /tmp/curl-7.46.0 && LIBS="-ldl" ./configure --enable-static --prefix=/opt/curl --with-ssl=/opt/openssl && make all && make install && \
  -    cd - && rm -rf /tmp/curl-7.46.0 && rm -f /tmp/curl-7.46.0.tar.gz
  +    cd /tmp/curl-7.46.0 && \
  +    LIBS="-ldl" ./configure --enable-static --prefix=/opt/curl --with-ssl=/opt/openssl && \
  +    make all && \
  +    make install && \
  +    cd - && \
  +    rm -rf /tmp/curl-7.46.0 && \
  +    rm -f /tmp/curl-7.46.0.tar.gz
   
  -# # Upgrade openssl
  -# RUN rpm -Uvh  http://repoforge.eecs.wsu.edu/redhat/el5/en/x86_64/rpmforge/RPMS/$(curl -s http://repoforge.eecs.wsu.edu/redhat/el5/en/x86_64/rpmforge/RPMS/ | grep rpmforge-release | grep x86_64 | grep el5 | sort | tail -n1 | sed 's%.*>\(rpmforge\-release\-.*.rpm\)<.*%\1%')
  -# RUN sed -i 's/apt\.sw\.be/repoforge.eecs.wsu.edu/g' /etc/yum.repos.d/rpmforge.repo && \
  -#     sed -i '/rpmforge-extras/,/^enabled\|^\[/s/^enabled.*/enabled = 1/' /etc/yum.repos.d/rpmforge.repo
  -#
  -# RUN yum -y install \
  -#     install \
  -#     perl-ExtUtils-MakeMaker \
  -#     fakeroot
   
   ENV PATH="/opt/curl/bin:${PATH}"
   
  -# Set up an RVM with Ruby 2.2.2
  -RUN gpg --keyserver hkp://pool.sks-keyservers.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
  +# Set up an RVM with Ruby 2.1.5
  +# RUN gpg --keyserver hkp://keys.openpgp.org --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
  +RUN gpg --keyserver keyserver.ubuntu.com --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
   RUN curl -sSL https://get.rvm.io | bash -s stable && \
       /bin/bash -l -c "rvm requirements" && \
       /bin/bash -l -c "rvm install 2.1.5" && \
  
positive.code:     libffi-devel \
      libyaml-devel
  
  # RUN cd tmp && \
  #     wget https://www.openssl.org/source/openssl-1.0.2a.tar.gz && \
  #     tar -zxvf openssl-*.tar.gz && \
  #     cd openssl-*/ && \
  #     ./config -fpic shared && make && make install && \
  #     echo "/usr/local/ssl/lib" >> /etc/ld.so.conf && \
  #     ldconfig
  
  RUN yum -y install \
      make \
      automake \
      autoconf \
      install \
      perl-ExtUtils-MakeMaker \
      fakeroot
  
  RUN curl -o /tmp/openssl-1.0.2u.tar.gz http://artfiles.org/openssl.org/source/old/1.0.2/openssl-1.0.2u.tar.gz && \
      cd /tmp && tar -xzf /tmp/openssl-1.0.2u.tar.gz && \
  
negative.code: FROM centos:5
  MAINTAINER Remi Hakim @remh
  
  ARG BUNDLER_VERSION_ARG=1.17.3
  ARG RUBY_VERSION_ARG=2.2.2
  
  COPY ./CentOS-Base.repo \
       ./libselinux.repo /etc/yum.repos.d/
  
  RUN yum -y update && \
      yum -y install \
      automake \
      autoconf \
      curl \
      install \
      fakeroot \
      gpg \
      make \
      perl-ExtUtils-MakeMaker \
      rpm-build \
      which \
      xz \
      # Dependencies below are for rrdtool..
      intltool \
      gettext \
  