Add root6 routine

base/centos-full-root6:7

@@ -25,6 +25,6 @@ FROM centos:7.4.1708
  RUN yum install -y cmake3
  RUN rm -rf epel-release-latest-7.noarch.rpm
 
- RUN export ROOT_VERSION=6.14.05 && source /etc/profile.d/python36.sh && cd /opt && wget https://root.cern.ch/download/root_v$ROOT_VERSION.source.tar.gz && tar xvzf root_v$ROOT_VERSION.source.tar.gz && cd root_v$ROOT_VERSION && mkdir obj && cd obj && cmake3 .. && cd
+ RUN export ROOT_VERSION=6.14.06 && source /etc/profile.d/python36.sh && cd /opt && wget https://root.cern.ch/download/root_v$ROOT_VERSION.source.tar.gz && tar xvzf root_v$ROOT_VERSION.source.tar.gz && cd root-$ROOT_VERSION && mkdir obj && cd obj && cmake3 .. && make && echo "cd /opt/root-$ROOT_VERSION && source bin/thisroot.sh &&cd" >> /etc/profile.d/root_env.sh && cd
 
  # RUN echo "source /usr/local/root/bin/thisroot.sh" >> /etc/bashrc