project(minetest)
cmake_minimum_required( VERSION 2.6 )

# Set some random things default to not being visible in the GUI
mark_as_advanced(EXECUTABLE_OUTPUT_PATH LIBRARY_OUTPUT_PATH)
mark_as_advanced(JTHREAD_INCLUDE_DIR JTHREAD_LIBRARY)
mark_as_advanced(SQLITE3_INCLUDE_DIR SQLITE3_LIBRARY)
mark_as_advanced(JSON_INCLUDE_DIR JSON_LIBRARY)

option(ENABLE_CURL "Enable cURL support for fetching media" 1)

if (NOT ENABLE_CURL)
	mark_as_advanced(CLEAR CURL_LIBRARY CURL_INCLUDE_DIR)
endif(NOT ENABLE_CURL)

if( ENABLE_CURL )
	find_package(CURL)
endif( ENABLE_CURL )
set(USE_CURL 0)
if (CURL_FOUND AND ENABLE_CURL)
	message(STATUS "cURL support enabled")
	set(USE_CURL 1)
endif(CURL_FOUND AND ENABLE_CURL)

# user-visible option to enable/disable gettext usage
OPTION(ENABLE_GETTEXT "Use GetText for internationalization" 0)

# this is only set to 1 if gettext is enabled _and_ available
set(USE_GETTEXT 0)

if(ENABLE_GETTEXT)
	find_package(GettextLib)
else()
	MARK_AS_ADVANCED(GETTEXT_ICONV_DLL GETTEXT_INCLUDE_DIR GETTEXT_LIBRARY GETTEXT_MSGFMT)
endif()

if(GETTEXT_FOUND AND ENABLE_GETTEXT)
	message(STATUS "gettext include path: ${GETTEXT_INCLUDE_DIR}")
	message(STATUS "gettext msgfmt path: ${GETTEXT_MSGFMT}")
	if(WIN32)
		message(STATUS "gettext library: ${GETTEXT_LIBRARY}")
		message(STATUS "gettext dll: ${GETTEXT_DLL}")
		message(STATUS "gettext iconv dll: ${GETTEXT_ICONV_DLL}")
	endif()
	set(USE_GETTEXT 1)
	message(STATUS "GetText enabled; locales found: ${GETTEXT_AVAILABLE_LOCALES}")
elseif(GETTEXT_FOUND AND NOT ENABLE_GETTEXT)
	MESSAGE(STATUS "GetText found but disabled;")
else(GETTEXT_FOUND AND ENABLE_GETTEXT)
	message(STATUS "GetText disabled")
endif(GETTEXT_FOUND AND ENABLE_GETTEXT)

# user visible option to enable/disable sound
OPTION(ENABLE_SOUND "Enable sound" ON)

# this is only set to 1 if sound is enabled _and_ available
set(USE_SOUND 0)
set(SOUND_PROBLEM 0)

if(ENABLE_SOUND AND BUILD_CLIENT)
	# Sound libraries
	find_package(OpenAL)
	find_package(Vorbis)
	if(NOT OPENAL_FOUND)
		message(STATUS "Sound enabled, but OpenAL not found!")
		set(SOUND_PROBLEM 1)
		MARK_AS_ADVANCED(CLEAR OPENAL_LIBRARY OPENAL_INCLUDE_DIR)
	endif()
	if(NOT VORBIS_FOUND)
		message(STATUS "Sound enabled, but Vorbis libraries not found!")
		set(SOUND_PROBLEM 1)
		MARK_AS_ADVANCED(CLEAR OGG_INCLUDE_DIR VORBIS_INCLUDE_DIR OGG_LIBRARY VORBIS_LIBRARY VORBISFILE_LIBRARY)
	endif()
	if(OPENAL_FOUND AND VORBIS_FOUND)
		set(USE_SOUND 1)
		message(STATUS "Sound enabled")
	endif()
endif(ENABLE_SOUND AND BUILD_CLIENT)

if(SOUND_PROBLEM)
	message(FATAL_ERROR "Sound enabled, but cannot be used.\n"
		"To continue, either fill in the required paths or disable sound. (-DENABLE_SOUND=0)")
endif()
if(USE_SOUND)
	set(sound_SRCS sound_openal.cpp)
	set(SOUND_INCLUDE_DIRS
		${OPENAL_INCLUDE_DIR}
		${VORBIS_INCLUDE_DIR}
		${OGG_INCLUDE_DIR}
		)
	set(SOUND_LIBRARIES
		${OPENAL_LIBRARY}
		${VORBIS_LIBRARIES}
		)
endif()

option(ENABLE_FREETYPE "Enable freetype2 (truetype fonts and basic unicode support)" OFF)
set(USE_FREETYPE 0)
if(ENABLE_FREETYPE)
	set(USE_FREETYPE 1)
endif(ENABLE_FREETYPE)

if(NOT MSVC)
	set(USE_GPROF 0 CACHE BOOL "Use -pg flag for g++")
endif()

# Use cmake_config.h
add_definitions ( -DUSE_CMAKE_CONFIG_H )

if(WIN32)
	# Windows
	if(MSVC) # MSVC Specifics
		# Surpress some useless warnings
		add_definitions ( /D "_CRT_SECURE_NO_DEPRECATE" /W1 )
	else() # Probably MinGW = GCC
		set(PLATFORM_LIBS ws2_32.lib)
	endif()
	# Zlib stuff
	set(ZLIB_INCLUDE_DIR "${PROJECT_SOURCE_DIR}/../../zlib/zlib-1.2.5"
			CACHE PATH "Zlib include directory")
	set(ZLIB_LIBRARIES "${PROJECT_SOURCE_DIR}/../../zlib125dll/dll32/zlibwapi.lib"
			CACHE FILEPATH "Path to zlibwapi.lib")
	set(ZLIB_DLL "${PROJECT_SOURCE_DIR}/../../zlib125dll/dll32/zlibwapi.dll"
			CACHE FILEPATH "Path to zlibwapi.dll (for installation)")
	set(IRRLICHT_SOURCE_DIR "${PROJECT_SOURCE_DIR}/../../irrlicht-1.7.2"
			CACHE PATH "irrlicht dir")
	if(USE_FREETYPE)
		set(FREETYPE_INCLUDE_DIR_ft2build "${PROJECT_SOURCE_DIR}/../../freetype2/include/"
				CACHE PATH "freetype include dir")
		set(FREETYPE_INCLUDE_DIR_freetype2 "${PROJECT_SOURCE_DIR}/../../freetype2/include/freetype"
				CACHE PATH "freetype include dir")
		set(FREETYPE_LIBRARY "${PROJECT_SOURCE_DIR}/../../freetype2/objs/win32/vc2005/freetype247.lib"
				CACHE FILEPATH "Path to freetype247.lib")
	endif(USE_FREETYPE)
	set(MINGWM10_DLL ""
			CACHE FILEPATH "Path to mingwm10.dll (for installation)")
	if(ENABLE_SOUND)
		set(OPENAL_DLL "" CACHE FILEPATH "Path to OpenAL32.dll for installation (optional)")
		set(OGG_DLL "" CACHE FILEPATH "Path to libogg.dll for installation (optional)")
		set(VORBIS_DLL "" CACHE FILEPATH "Path to libvorbis.dll for installation (optional)")
		set(VORBISFILE_DLL "" CACHE FILEPATH "Path to libvorbisfile.dll for installation (optional)")
	endif()
else()
	# Unix probably
	if(BUILD_CLIENT)
		find_package(X11 REQUIRED)
		find_package(OpenGL REQUIRED)
		find_package(JPEG REQUIRED)
		find_package(BZip2 REQUIRED)
		find_package(PNG REQUIRED)
		if(APPLE)
			FIND_LIBRARY(CARBON_LIB Carbon)
			FIND_LIBRARY(COCOA_LIB Cocoa)
			FIND_LIBRARY(IOKIT_LIB IOKit)
			mark_as_advanced(
				CARBON_LIB
				COCOA_LIB
				IOKIT_LIB
			)
			SET(CLIENT_PLATFORM_LIBS ${CLIENT_PLATFORM_LIBS} ${CARBON_LIB} ${COCOA_LIB} ${IOKIT_LIB})
		endif(APPLE)
	endif(BUILD_CLIENT)
	find_package(ZLIB REQUIRED)
	set(PLATFORM_LIBS -lpthread -lrt ${CMAKE_DL_LIBS})
	#set(CLIENT_PLATFORM_LIBS -lXxf86vm)
	# This way Xxf86vm is found on OpenBSD too
	find_library(XXF86VM_LIBRARY Xxf86vm)
	mark_as_advanced(XXF86VM_LIBRARY)
	set(CLIENT_PLATFORM_LIBS ${CLIENT_PLATFORM_LIBS} ${XXF86VM_LIBRARY})
endif()

find_package(Jthread REQUIRED)
find_package(Sqlite3 REQUIRED)
find_package(Json REQUIRED)
find_package(OpenGLES2)

if(USE_FREETYPE)
	find_package(Freetype REQUIRED)
	set(CGUITTFONT_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/cguittfont")
	set(CGUITTFONT_LIBRARY cguittfont)
endif(USE_FREETYPE)


find_library(LUA_LIBRARY luajit
		NAMES luajit-5.1)
find_path(LUA_INCLUDE_DIR luajit.h
	NAMES luajit.h
	PATH_SUFFIXES luajit-2.0)
message (STATUS "LuaJIT library: ${LUA_LIBRARY}")
message (STATUS "LuaJIT headers: ${LUA_INCLUDE_DIR}")

if(LUA_LIBRARY AND LUA_INCLUDE_DIR) 
	message (STATUS "LuaJIT found.")
else(LUA_LIBRARY AND LUA_INCLUDE_DIR)
	message (STATUS "LuaJIT not found, using bundled Lua.")
	set(LUA_INCLUDE_DIR "${PROJECT_SOURCE_DIR}/lua/src")
	set(LUA_LIBRARY "lua")
	add_subdirectory(lua)
endif(LUA_LIBRARY AND LUA_INCLUDE_DIR)

mark_as_advanced(LUA_LIBRARY)
mark_as_advanced(LUA_INCLUDE_DIR)

configure_file(
	"${PROJECT_SOURCE_DIR}/cmake_config.h.in"
	"${PROJECT_BINARY_DIR}/cmake_config.h"
)

add_subdirectory(script)
add_subdirectory(util)

set(common_SRCS
	rollback_interface.cpp
	rollback.cpp
	genericobject.cpp
	voxelalgorithms.cpp
	sound.cpp
	quicktune.cpp
	subgame.cpp
	inventorymanager.cpp
	mods.cpp
	content_abm.cpp
	craftdef.cpp
	nameidmapping.cpp
	itemdef.cpp
	nodedef.cpp
	object_properties.cpp
	log.cpp
	content_sao.cpp
	emerge.cpp
	mapgen.cpp
	mapgen_v6.cpp
	mapgen_v7.cpp
	mapgen_indev.cpp
	mapgen_singlenode.cpp
	mapgen_math.cpp
	treegen.cpp
	dungeongen.cpp
	cavegen.cpp
	content_nodemeta.cpp
	content_mapnode.cpp
	collision.cpp
	nodemetadata.cpp
	nodetimer.cpp
	serverobject.cpp
	noise.cpp
	porting.cpp
	tool.cpp
	defaultsettings.cpp
	mapnode.cpp
	voxel.cpp
	inventory.cpp
	debug.cpp
	serialization.cpp
	light.cpp
	filesys.cpp
	connection.cpp
	environment.cpp
	server.cpp
	socket.cpp
	mapblock.cpp
	mapsector.cpp
	map.cpp
	player.cpp
	test.cpp
	sha1.cpp
	base64.cpp
	ban.cpp
	biome.cpp
	clientserver.cpp
	staticobject.cpp
	serverlist.cpp
	pathfinder.cpp
	convert_json.cpp
	${SCRIPT_SRCS}
	${UTIL_SRCS}
)

# This gives us the icon
if(WIN32)
	set(WINRESOURCE_FILE ${CMAKE_CURRENT_SOURCE_DIR}/../misc/winresource.rc)
	if(MINGW)
		if(NOT CMAKE_RC_COMPILER)
			set(CMAKE_RC_COMPILER "windres.exe")
		endif()
		ADD_CUSTOM_COMMAND(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/winresource_rc.o
			COMMAND ${CMAKE_RC_COMPILER} -I${CMAKE_CURRENT_SOURCE_DIR}
			-i${WINRESOURCE_FILE}
			-o ${CMAKE_CURRENT_BINARY_DIR}/winresource_rc.o
			WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
		SET(common_SRCS ${common_SRCS} ${CMAKE_CURRENT_BINARY_DIR}/winresource_rc.o)
	else(MINGW) # Probably MSVC
		set(common_SRCS ${common_SRCS} ${WINRESOURCE_FILE})
	endif(MINGW)
endif()

# Client sources
set(minetest_SRCS
	${common_SRCS}
	${sound_SRCS}
	localplayer.cpp
	sky.cpp
	clientmap.cpp
	content_cso.cpp
	content_mapblock.cpp
	content_cao.cpp
	mesh.cpp
	mapblock_mesh.cpp
	keycode.cpp
	camera.cpp
	clouds.cpp
	particles.cpp
	clientobject.cpp
	chat.cpp
	hud.cpp
	guiKeyChangeMenu.cpp
	guiMessageMenu.cpp
	guiTextInputMenu.cpp
	guiFormSpecMenu.cpp
	guiPauseMenu.cpp
	guiPasswordChange.cpp
	guiVolumeChange.cpp
	guiDeathScreen.cpp
	guiChatConsole.cpp
	client.cpp
	filecache.cpp
	tile.cpp
	shader.cpp
	game.cpp
	main.cpp
	guiEngine.cpp
	guiLuaApi.cpp
	guiFileSelectMenu.cpp
	convert_json.cpp
)

if(USE_FREETYPE)
	set(minetest_SRCS
		${minetest_SRCS}
		intlGUIEditBox.cpp
	)
endif(USE_FREETYPE)

# Server sources
set(minetestserver_SRCS
	${common_SRCS}
	main.cpp
)

include_directories(
	${PROJECT_BINARY_DIR}
	${PROJECT_SOURCE_DIR}
	${IRRLICHT_INCLUDE_DIR}
	${ZLIB_INCLUDE_DIR}
	${CMAKE_BUILD_TYPE}
	${PNG_INCLUDE_DIR}
	${GETTEXT_INCLUDE_DIR}
	${SOUND_INCLUDE_DIRS}
	${JTHREAD_INCLUDE_DIR}
	${SQLITE3_INCLUDE_DIR}
	${LUA_INCLUDE_DIR}
	${JSON_INCLUDE_DIR}
	${PROJECT_SOURCE_DIR}/script
)

if(USE_FREETYPE)
	include_directories(
		${FREETYPE_INCLUDE_DIRS}
		${CGUITTFONT_INCLUDE_DIR}
	)
endif(USE_FREETYPE)

if(USE_CURL)
	include_directories(
		${CURL_INCLUDE_DIR}
	)
endif(USE_CURL)

set(EXECUTABLE_OUTPUT_PATH "${CMAKE_SOURCE_DIR}/bin")

if(BUILD_CLIENT)
	add_executable(${PROJECT_NAME} ${minetest_SRCS})
	target_link_libraries(
		${PROJECT_NAME}
		${ZLIB_LIBRARIES}
		${IRRLICHT_LIBRARY}
		${OPENGL_LIBRARIES}
		${JPEG_LIBRARIES}
		${BZIP2_LIBRARIES}
		${PNG_LIBRARIES}
		${X11_LIBRARIES}
		${GETTEXT_LIBRARY}
		${SOUND_LIBRARIES}
		${JTHREAD_LIBRARY}
		${SQLITE3_LIBRARY}
		${LUA_LIBRARY}
		${JSON_LIBRARY}
		${OPENGLES2_LIBRARIES}
		${PLATFORM_LIBS}
		${CLIENT_PLATFORM_LIBS}
	)
	if(USE_CURL)
		target_link_libraries(
			${PROJECT_NAME}
			${CURL_LIBRARY}
		)
	endif(USE_CURL)
	if(USE_FREETYPE)
		target_link_libraries(
			${PROJECT_NAME}
			${FREETYPE_LIBRARY}
			${CGUITTFONT_LIBRARY}
		)
	endif(USE_FREETYPE)
endif(BUILD_CLIENT)

if(BUILD_SERVER)
	add_executable(${PROJECT_NAME}server ${minetestserver_SRCS})
	target_link_libraries(
		${PROJECT_NAME}server
		${ZLIB_LIBRARIES}
		${JTHREAD_LIBRARY}
		${SQLITE3_LIBRARY}
		${JSON_LIBRARY}
		${GETTEXT_LIBRARY}
		${LUA_LIBRARY}
		${PLATFORM_LIBS}
	)
	if(USE_CURL)
		target_link_libraries(
			${PROJECT_NAME}server
			${CURL_LIBRARY}
		)
	endif(USE_CURL)
endif(BUILD_SERVER)


#
# Set some optimizations and tweaks
#

include(CheckCXXCompilerFlag)

if(MSVC)
	# Visual Studio

	# EHa enables SEH exceptions (used for catching segfaults)
	set(CMAKE_CXX_FLAGS_RELEASE "/EHa /O2 /Ob2 /Oi /Ot /Oy /GL /FD /MT /GS- /arch:SSE /fp:fast /D NDEBUG /D _HAS_ITERATOR_DEBUGGING=0 /TP")
	#set(CMAKE_EXE_LINKER_FLAGS_RELEASE "/LTCG /NODEFAULTLIB:\"libcmtd.lib\" /NODEFAULTLIB:\"libcmt.lib\"")
	set(CMAKE_EXE_LINKER_FLAGS_RELEASE "/LTCG")

	# Debug build doesn't catch exceptions by itself
	# Add some optimizations because otherwise it's VERY slow
	set(CMAKE_CXX_FLAGS_DEBUG "/MDd /Zi /Ob0 /Od /RTC1")

	# Flags for C files (sqlite)
	# /MT = Link statically with standard library stuff
	set(CMAKE_C_FLAGS_RELEASE "/O2 /Ob2 /MT")
	
	if(BUILD_SERVER)
		set_target_properties(${PROJECT_NAME}server PROPERTIES
				COMPILE_DEFINITIONS "SERVER")
	endif(BUILD_SERVER)

else()
	# Probably GCC
	
	if(WARN_ALL)
		set(RELEASE_WARNING_FLAGS "-Wall")
	else()
		set(RELEASE_WARNING_FLAGS "")
	endif()
	
	if(NOT APPLE AND NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
		CHECK_CXX_COMPILER_FLAG("-Wno-unused-but-set-variable" HAS_UNUSED_BUT_SET_VARIABLE_WARNING)
		if(HAS_UNUSED_BUT_SET_VARIABLE_WARNING)
			set(WARNING_FLAGS "${WARNING_FLAGS} -Wno-unused-but-set-variable")
		endif(HAS_UNUSED_BUT_SET_VARIABLE_WARNING)
	endif()

	if(MINGW)
		set(OTHER_FLAGS "-mthreads -fexceptions")
	endif()

	if(APPLE)
		set(CMAKE_OSX_ARCHITECTURES i386 CACHE STRING "do not build for 64-bit" FORCE)
		set(ARCH i386)
	endif()

	set(CMAKE_CXX_FLAGS_RELEASE "-DNDEBUG ${RELEASE_WARNING_FLAGS} ${WARNING_FLAGS} ${OTHER_FLAGS} -O3 -ffast-math -Wall -fomit-frame-pointer -pipe -funroll-loops")
	set(CMAKE_CXX_FLAGS_DEBUG "-g -O1 -Wall ${WARNING_FLAGS} ${OTHER_FLAGS}")

	if(USE_GPROF)
		set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -pg")
	endif()
	
	if(BUILD_SERVER)
		set_target_properties(${PROJECT_NAME}server PROPERTIES
				COMPILE_DEFINITIONS "SERVER")
	endif(BUILD_SERVER)

endif()

#MESSAGE(STATUS "CMAKE_CXX_FLAGS_RELEASE=${CMAKE_CXX_FLAGS_RELEASE}")
#MESSAGE(STATUS "CMAKE_CXX_FLAGS_DEBUG=${CMAKE_CXX_FLAGS_DEBUG}")

#
# Installation
#
if(WIN32)
	if(MINGWM10_DLL)
		install(FILES ${MINGWM10_DLL} DESTINATION ${BINDIR})
	endif()
	if(DEFINED ZLIB_DLL)
		install(FILES ${ZLIB_DLL} DESTINATION ${BINDIR})
	endif()
	if(USE_SOUND)
		if(OPENAL_DLL)
			install(FILES ${OPENAL_DLL} DESTINATION ${BINDIR})
		endif()
		if(OGG_DLL)
			install(FILES ${OGG_DLL} DESTINATION ${BINDIR})
		endif()
		if(VORBIS_DLL)
			install(FILES ${VORBIS_DLL} DESTINATION ${BINDIR})
		endif()
		if(VORBISFILE_DLL)
			install(FILES ${VORBISFILE_DLL} DESTINATION ${BINDIR})
		endif()
		if(CURL_DLL)
			install(FILES ${CURL_DLL} DESTINATION ${BINDIR})
		endif()
	endif()
endif()

if(BUILD_CLIENT)
	install(TARGETS ${PROJECT_NAME} DESTINATION ${BINDIR})

	if(USE_GETTEXT)
		foreach(LOCALE ${GETTEXT_AVAILABLE_LOCALES})
			set_mo_paths(MO_BUILD_PATH MO_DEST_PATH ${LOCALE})
			set(MO_BUILD_PATH "${MO_BUILD_PATH}/${PROJECT_NAME}.mo")
			install(FILES ${MO_BUILD_PATH} DESTINATION ${MO_DEST_PATH})
		endforeach(LOCALE ${GETTEXT_AVAILABLE_LOCALES})
	endif()

	if(WIN32)
		if(DEFINED IRRLICHT_DLL)
			install(FILES ${IRRLICHT_DLL} DESTINATION ${BINDIR})
		endif()
		if(USE_GETTEXT)
			if(DEFINED GETTEXT_DLL)
				install(FILES ${GETTEXT_DLL} DESTINATION ${BINDIR})
			endif()
			if(DEFINED GETTEXT_ICONV_DLL)
				install(FILES ${GETTEXT_ICONV_DLL} DESTINATION ${BINDIR})
			endif()
		endif(USE_GETTEXT)
	endif()
endif(BUILD_CLIENT)

if(BUILD_SERVER)
	install(TARGETS ${PROJECT_NAME}server DESTINATION ${BINDIR})
endif(BUILD_SERVER)

if (USE_GETTEXT)
	set(MO_FILES)

	foreach(LOCALE ${GETTEXT_AVAILABLE_LOCALES})
		set(PO_FILE_PATH "${GETTEXT_PO_PATH}/${LOCALE}/minetest.po")
		set_mo_paths(MO_BUILD_PATH MO_DEST_PATH ${LOCALE})
		set(MO_FILE_PATH "${MO_BUILD_PATH}/${PROJECT_NAME}.mo")

		add_custom_command(OUTPUT ${MO_BUILD_PATH}
			COMMAND ${CMAKE_COMMAND} -E make_directory ${MO_BUILD_PATH}
			COMMENT "mo-update [${LOCALE}]: Creating locale directory.")

		add_custom_command(
			OUTPUT ${MO_FILE_PATH}
			COMMAND ${GETTEXT_MSGFMT} -o ${MO_FILE_PATH} ${PO_FILE_PATH}
			DEPENDS ${MO_BUILD_PATH} ${PO_FILE_PATH}
			WORKING_DIRECTORY "${GETTEXT_PO_PATH}/${LOCALE}"
			COMMENT "mo-update [${LOCALE}]: Creating mo file."
			)

		set(MO_FILES ${MO_FILES} ${MO_FILE_PATH})
	endforeach(LOCALE ${GETTEXT_AVAILABLE_LOCALES})

	add_custom_target(translations ALL COMMENT "mo update" DEPENDS ${MO_FILES})
endif(USE_GETTEXT)

# Subdirectories

if (JTHREAD_FOUND)
else (JTHREAD_FOUND)
	add_subdirectory(jthread)
endif (JTHREAD_FOUND)

if (SQLITE3_FOUND)
else (SQLITE3_FOUND)
	add_subdirectory(sqlite)
endif (SQLITE3_FOUND)

if (BUILD_CLIENT AND USE_FREETYPE)
	add_subdirectory(cguittfont)
endif (BUILD_CLIENT AND USE_FREETYPE)

if (JSON_FOUND)
else (JSON_FOUND)
	add_subdirectory(json)
endif (JSON_FOUND)

#end