#Findcereal.cmake
find_path(CEREAL_INCLUDE_DIR
  NAMES cereal
  PATHS "$ENV{ProgramFiles}/cereal/include"
  )

if(CEREAL_INCLUDE_DIR)
  # ------------------------------------------------------------------------
  #  Extract version information from <CEREAL>
  # ------------------------------------------------------------------------
  set(CEREAL_FOUND YES)
  set(CEREAL_VERSION_MAJOR 0)
  set(CEREAL_VERSION_MINOR 0)
  set(CEREAL_VERSION_PATCH 0)

  if(EXISTS "${CEREAL_INCLUDE_DIR}/cereal/version.hpp")

    # Read and parse cereal version header file for version number
    file(READ "${CEREAL_INCLUDE_DIR}/cereal/version.hpp"
        _CEREAL_HEADER_CONTENTS)
    string(REGEX REPLACE ".*#define CEREAL_VERSION_MAJOR ([0-9]+).*" "\\1"
        CEREAL_VERSION_MAJOR "${_CEREAL_HEADER_CONTENTS}")
    string(REGEX REPLACE ".*#define CEREAL_VERSION_MINOR ([0-9]+).*" "\\1"
        CEREAL_VERSION_MINOR "${_CEREAL_HEADER_CONTENTS}")
    string(REGEX REPLACE ".*#define CEREAL_VERSION_PATCH ([0-9]+).*" "\\1"
        CEREAL_VERSION_PATCH "${_CEREAL_HEADER_CONTENTS}")

  elseif(EXISTS "${CEREAL_INCLUDE_DIR}/cereal/details/polymorphic_impl_fwd.hpp")

    set(CEREAL_VERSION_MAJOR 1)
    set(CEREAL_VERSION_MINOR 2)
    set(CEREAL_VERSION_PATCH 0)
  elseif(EXISTS "${CEREAL_INCLUDE_DIR}/cereal/types/valarray.hpp")

    set(CEREAL_VERSION_MAJOR 1)
    set(CEREAL_VERSION_MINOR 1)
    set(CEREAL_VERSION_PATCH 2)
  elseif(EXISTS "${CEREAL_INCLUDE_DIR}/cereal/cereal.hpp")

  set(CEREAL_VERSION_MAJOR 1)
  set(CEREAL_VERSION_MINOR 1)
  set(CEREAL_VERSION_PATCH 1)
else()

  set(CEREAL_FOUND NO)
  endif()
  set(CEREAL_VERSION_STRING "${CEREAL_VERSION_MAJOR}.${CEREAL_VERSION_MINOR}.${CEREAL_VERSION_PATCH}")
endif ()

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(cereal
  REQUIRED_VARS CEREAL_INCLUDE_DIR
  VERSION_VAR CEREAL_VERSION_STRING
  )

mark_as_advanced(CEREAL_INCLUDE_DIR)