anchor.diff:              unzip \
               wget
               
  -RUN cd /tmp & curl -L -O http://ftp.gnu.org/gnu/autoconf/autoconf-2.69.tar.gz \
  -            & tar zxf autoconf-2.69.tar.gz \
  -            & cd autoconf-2.69 \
  -            & ./configure \
  -            & make && make install \
  -            & cd /tmp
  -            & rm -rf autoconf-2.69
  +RUN cd /tmp && curl -L -O http://ftp.gnu.org/gnu/autoconf/autoconf-2.69.tar.gz \
  +            && tar zxf autoconf-2.69.tar.gz \
  +            && cd autoconf-2.69 \
  +            && ./configure \
  +            && make && make install \
  +            && cd /tmp
  +            && rm -rf autoconf-2.69
   
   RUN curl -L https://people.centos.org/tru/devtools-2/devtools-2.repo -o /etc/yum.repos.d/devtools-2.repo && yum install -y devtoolset-2-gcc devtoolset-2-binutils devtoolset-2-gcc-c++
   
  
positive.code: 
  RUN cd /tmp/libzmq && make install && ldconfig
  
  RUN cd /tmp & rm -rf libzmq libsodium
  
  RUN curl -LO  http://botan.randombit.net/releases/Botan-1.10.17.tgz \
   && curl -LO  http://botan.randombit.net/releases/Botan-1.10.17.tgz.asc \
  
negative.code: ENV CXX /opt/rh/devtoolset-2/root/usr/bin/g++
  ENV CC /opt/rh/devtoolset-2/root/usr/bin/cc
  
  RUN mkdir gpg_keys
  
  COPY gpg_keys/ gpg_keys/
  
  