Ok, making progress, 3rd (different) computer and I got farther than previously, here's the error message this time
Code:
CMake Error at C:/Program Files (x86)/CMake/share/cmake-3.8/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
Could NOT find ZLIB (missing: ZLIB_LIBRARY ZLIB_INCLUDE_DIR)
Call Stack (most recent call first):
C:/Program Files (x86)/CMake/share/cmake-3.8/Modules/FindPackageHandleStandardArgs.cmake:377 (_FPHSA_FAILURE_MESSAGE)
C:/Program Files (x86)/CMake/share/cmake-3.8/Modules/FindZLIB.cmake:112 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
CMakeLists.txt:305 (FIND_PACKAGE)