CMake is re-running because /.../CIP-build/CMakeFiles/generate.stamp is out-of-date.
  the file '/.../CIP/SuperBuild.cmake'
  is newer than '/.../CIP-build/CMakeFiles/generate.stamp.depend'
  result='-1'
----------- ENTRY ------------
Configuring Superbuild...
-- PRIMARY_PROJECT_NAME_DEPENDENCIES: CIPPython;SlicerExecutionModel;VTKv7;ITKv4;Boost;teem
-- SuperBuild - First pass

CMake Error at C:/Program Files/CMake/share/cmake-3.9/Modules/ExternalProject.cmake:1817 (message):

  error: git version 1.6.5 or later required for 'git submodule update
  --recursive': GIT_VERSION_STRING=''
Call Stack (most recent call first):
  C:/Program Files/CMake/share/cmake-3.9/Modules/ExternalProject.cmake:2565 (_ep_add_download_command)
  SuperBuild/External_CIPPython.cmake:30 (ExternalProject_Add)
  CMake/ExternalProjectDependency.cmake:561 (include)
  SuperBuild.cmake:550 (ExternalProject_Include_Dependencies)
  CMakeLists.txt:31 (include)

-- Configuring incomplete, errors occurred!