I've downloaded all the programs/files listed in order to make compiling work. While using Cmake, I get errors towards then end of configuring. How do I fix this? The current errors are:

CMake Error at C:/Program Files/CMake 2.8/share/cmake-2.8/Modules/FindPackageHandleStandardArgs.cmake:91 (MESSAGE):
Could NOT find OpenSSL (missing: OPENSSL_LIBRARIES OPENSSL_INCLUDE_DIR)
Call Stack (most recent call first):
C:/Program Files/CMake 2.8/share/cmake-2.8/Modules/FindPackageHandleStandardArgs.cmake:252 (_FPHSA_FAILURE_MESSAGE)
cmake/macros/FindOpenSSL.cmake:175 (find_package_handle_standard_args)
CMakeLists.txt:53 (find_package)