title: Specify Crypto++ library in a CMakeLists file
body: <p>I am trying to specify the Crypto++ library in my <code>CMakeLists</code> file but I always get an error.</p>
  
  <p>Here is my <code>CMakeLists</code> file:        </p>
  
  <pre><code>cmake_minimum_required(VERSION 2.8)
  project( Recognition )
  find_package( OpenCV REQUIRED )
  find_package ( CURL REQUIRED )
  find_package ( CRYPTOPP REQUIRED )
  add_executable( Recognition Recognition.cpp )
  target_link_libraries( Recognition ${OpenCV_LIBS} ${CURL_LIBRARY} ${CRYPTOPP_LIBRARY})
  </code></pre>
  
  <p>And here is the errors I get:        </p>
  
  <pre><code> By not providing "FindCRYPTOPP.cmake" in CMAKE_MODULE_PATH this project has
   asked CMake to find a package configuration file provided by "CRYPTOPP",
   but CMake did not find one.
  
   Could not find a package configuration file provided by "CRYPTOPP" with any
   of the following names:
  
   CRYPTOPPConfig.cmake
   cryptopp-config.cmake
  
   Add the installation prefix of "CRYPTOPP" to CMAKE_PREFIX_PATH or set
   "CRYPTOPP_DIR" to a directory containing one of the above files.  If
   "CRYPTOPP" provides a separate development package or SDK, be sure it has
   been installed.
  
   -- Configuring incomplete, errors occurred!
  </code></pre>
  
  <p>Thank you for your help!</p>