Add FindRapidJSON.cmake

FindRapidJSON.cmake

@@ -0,0 +1,40 @@
+#.rst:
+# FindRapidJSON
+# -----------
+# Finds the RapidJSON library
+#
+# This will define the following variables::
+#
+# RAPIDJSON_FOUND - system has RapidJSON parser
+# RAPIDJSON_INCLUDE_DIRS - the RapidJSON parser include directory
+#
+
+if(PKG_CONFIG_FOUND)
+  pkg_check_modules(PC_RapidJSON RapidJSON>=1.0.2 QUIET)
+endif()
+
+if(CORE_SYSTEM_NAME STREQUAL windows OR CORE_SYSTEM_NAME STREQUAL windowsstore)
+  set(RapidJSON_VERSION 1.1.0)
+else()
+  if(PC_RapidJSON_VERSION)
+    set(RapidJSON_VERSION ${PC_RapidJSON_VERSION})
+  else()
+    find_package(RapidJSON 1.1.0 CONFIG REQUIRED QUIET)
+  endif()
+endif()
+
+find_path(RapidJSON_INCLUDE_DIR NAMES rapidjson/rapidjson.h
+                                PATHS ${PC_RapidJSON_INCLUDEDIR})
+
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(RapidJSON
+                                  REQUIRED_VARS RapidJSON_INCLUDE_DIR RapidJSON_VERSION
+                                  VERSION_VAR RapidJSON_VERSION)
+
+if(RAPIDJSON_FOUND)
+  set(RAPIDJSON_INCLUDE_DIRS ${RapidJSON_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(RapidJSON_INCLUDE_DIR)
+