cmake/Modules/FindJson.cmake

   1 # Look for JsonCpp, with fallback to bundeled version
   2
   3 mark_as_advanced(JSON_LIBRARY JSON_INCLUDE_DIR)
   4 option(ENABLE_SYSTEM_JSONCPP "Enable using a system-wide JsonCpp" TRUE)
   5 set(USE_SYSTEM_JSONCPP FALSE)
   6
   7 if(ENABLE_SYSTEM_JSONCPP)
   8         find_library(JSON_LIBRARY NAMES jsoncpp)
   9         find_path(JSON_INCLUDE_DIR json/allocator.h PATH_SUFFIXES jsoncpp)
  10
  11         if(JSON_LIBRARY AND JSON_INCLUDE_DIR)
  12                 message(STATUS "Using JsonCpp provided by system.")
  13                 set(USE_SYSTEM_JSONCPP TRUE)
  14         endif()
  15 endif()
  16
  17 if(NOT USE_SYSTEM_JSONCPP)
  18         message(STATUS "Using bundled JsonCpp library.")
  19         set(JSON_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/lib/jsoncpp)
  20         set(JSON_LIBRARY jsoncpp)
  21         add_subdirectory(lib/jsoncpp)
  22 endif()
  23
  24 include(FindPackageHandleStandardArgs)
  25 find_package_handle_standard_args(Json DEFAULT_MSG JSON_LIBRARY JSON_INCLUDE_DIR)