Resolve "rebuild omgsim base container"

base/omgsim:4.10.01

@@ -7,14 +7,16 @@ FROM docker.km3net.de/base/centos-full:7
  RUN yum install -y centos-release-scl
 
 # get devtoolset from this repo
- RUN yum install -y devtoolset-4-gcc* devtoolset-4-gcc-gfortran devtoolset-4-binutils
- RUN . /opt/rh/devtoolset-4/enable
+# RUN yum install -y devtoolset-4-gcc* devtoolset-4-gcc-gfortran devtoolset-4-binutils
+# RUN . /opt/rh/devtoolset-4/enable
+ RUN yum install -y devtoolset-7
+ RUN scl enable devtoolset-7 sh
 
 # create folder for additional non-standard CentOS7 software
- RUN mkdir $HOME/OMGsim
+ RUN mkdir -p /opt
 
 # Make libconfig
- RUN cd $HOME/OMGsim && wget https://hyperrealm.github.io/libconfig/dist/libconfig-1.7.2.tar.gz && tar xf libconfig-1.7.2.tar.gz -C /tmp && rm libconfig-1.7.2.tar.gz && \
+ RUN cd /opt && wget https://hyperrealm.github.io/libconfig/dist/libconfig-1.7.2.tar.gz && tar xf libconfig-1.7.2.tar.gz -C /tmp && rm libconfig-1.7.2.tar.gz && \
     export LIBCONFIG_ROOT=`pwd`/libconfig-1.7.2 && cd /tmp/libconfig-1.7.2/ && ./configure --prefix $LIBCONFIG_ROOT && make && make install && cd - && \
     rm -rf /tmp/libconfig-1.7.2/ && \
     export LD_LIBRARY_PATH=${LIBCONFIG_ROOT}/lib:${LD_LIBRARY_PATH} && \
@@ -22,7 +24,7 @@ FROM docker.km3net.de/base/centos-full:7
 
 # Make Geant4 and dependencies
  RUN yum install -y libX11-devel libXmu-devel motif motif-devel
- RUN cd $HOME/OMGsim && wget http://cern.ch/geant4-data/releases/geant4.10.01.p03.tar.gz && tar xf geant4.10.01.p03.tar.gz && rm geant4.10.01.p03.tar.gz && \ 
+ RUN cd /opt && wget http://cern.ch/geant4-data/releases/geant4.10.01.p03.tar.gz && tar xf geant4.10.01.p03.tar.gz && rm geant4.10.01.p03.tar.gz && \ 
     mkdir geant4.10.01.p03-build && cd geant4.10.01.p03-build && \
     cmake -DCMAKE_INSTALL_PREFIX=../geant4.10.01.p03-install ../geant4.10.01.p03 -DGEANT4_INSTALL_DATA=ON -DGEANT4_USE_XM=ON && \
     make -j4 install > /dev/null