# - Try to find the OpenSSL encryption library
# Once done this will define
#
#  OPENSSL_FOUND - system has the OpenSSL library
#  OPENSSL_INCLUDE_DIR - the OpenSSL include directory
#  OPENSSL_LIBRARIES - The libraries needed to use OpenSSL

IF (DEFINED CACHED_OPENSSL)

  # in cache already
  IF ("${CACHED_OPENSSL}" STREQUAL "YES")
    SET(OPENSSL_FOUND TRUE)
  ENDIF ("${CACHED_OPENSSL}" STREQUAL "YES")

ELSE (DEFINED CACHED_OPENSSL)

  FIND_PATH(OPENSSL_INCLUDE_DIR openssl/ssl.h
     /usr/include/
     /usr/local/include/
  )
  
  FIND_LIBRARY(OPENSSL_LIBRARIES NAMES ssl ssleay32
     PATHS
     /usr/lib
     /usr/local/lib
  )
  
  if (OPENSSL_INCLUDE_DIR AND OPENSSL_LIBRARIES)
     set(OPENSSL_FOUND TRUE)
     set(CACHED_OPENSSL "YES")
  else (OPENSSL_INCLUDE_DIR AND OPENSSL_LIBRARIES)
     set(CACHED_OPENSSL "NO")
  endif (OPENSSL_INCLUDE_DIR AND OPENSSL_LIBRARIES)
  
  
  if (OPENSSL_FOUND)
     if (NOT OpenSSL_FIND_QUIETLY)
        message(STATUS "Found OpenSSL: ${OPENSSL_LIBRARIES}")
     endif (NOT OpenSSL_FIND_QUIETLY)
  else (OPENSSL_FOUND)
     if (OpenSSL_FIND_REQUIRED)
        message(FATAL_ERROR "Could NOT find OpenSSL")
     endif (OpenSSL_FIND_REQUIRED)
  endif (OPENSSL_FOUND)
  
  set(CACHED_OPENSSL ${CACHED_OPENSSL} CACHE INTERNAL "If openssl was checked")
  MARK_AS_ADVANCED(OPENSSL_INCLUDE_DIR OPENSSL_LIBRARIES)
  
ENDIF (DEFINED CACHED_OPENSSL)