Initial commit

cmake/Modules/FindJson.cmake

@@ -0,0 +1,25 @@
+# Look for JsonCpp, with fallback to bundeled version
+
+mark_as_advanced(JSON_LIBRARY JSON_INCLUDE_DIR)
+option(ENABLE_SYSTEM_JSONCPP "Enable using a system-wide JsonCpp" TRUE)
+set(USE_SYSTEM_JSONCPP FALSE)
+
+if(ENABLE_SYSTEM_JSONCPP)
+	find_library(JSON_LIBRARY NAMES jsoncpp)
+	find_path(JSON_INCLUDE_DIR json/allocator.h PATH_SUFFIXES jsoncpp)
+
+	if(JSON_LIBRARY AND JSON_INCLUDE_DIR)
+		message(STATUS "Using JsonCpp provided by system.")
+		set(USE_SYSTEM_JSONCPP TRUE)
+	endif()
+endif()
+
+if(NOT USE_SYSTEM_JSONCPP)
+	message(STATUS "Using bundled JsonCpp library.")
+	set(JSON_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/lib/jsoncpp)
+	set(JSON_LIBRARY jsoncpp)
+	add_subdirectory(lib/jsoncpp)
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Json DEFAULT_MSG JSON_LIBRARY JSON_INCLUDE_DIR)