Fix for ROOT-7205  - Do not change the CMake default CMAKE_INSTALL_PREFIX
Fix for ROOT-7205  - Do not change the CMake default CMAKE_INSTALL_PREFIX

tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot