CMakeOlxCommon.cmake

# CMake common file for OpenLieroX
# sets up the source lists and vars

cmake_minimum_required(VERSION 2.4)
IF (${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 2.4)
	if(COMMAND CMAKE_POLICY)
		cmake_policy(VERSION 2.4)
		cmake_policy(SET CMP0005 OLD)
		cmake_policy(SET CMP0003 OLD)
		# Policy CMP0011 was introduced in 2.6.3.
		# We cannot do if(POLCY CMP0011) as a check because 2.4 would fail then.
		if(${CMAKE_MAJOR_VERSION} GREATER 2 OR ${CMAKE_MINOR_VERSION} GREATER 6 OR ${CMAKE_PATCH_VERSION} GREATER 2)
			# We explicitly want to export variables here.
			cmake_policy(SET CMP0011 OLD)
		endif(${CMAKE_MAJOR_VERSION} GREATER 2 OR ${CMAKE_MINOR_VERSION} GREATER 6 OR ${CMAKE_PATCH_VERSION} GREATER 2)
	endif(COMMAND CMAKE_POLICY)
	include(${OLXROOTDIR}/PCHSupport_26.cmake)
ENDIF (${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 2.4)


SET(SYSTEM_DATA_DIR "/usr/share/games" CACHE STRING "system data dir")
OPTION(DEBUG "enable debug build" Yes)
OPTION(DEDICATED_ONLY "dedicated_only - without gfx and sound" No)
OPTION(G15 "G15 support" No)
OPTION(X11 "X11 clipboard / notify" Yes)
OPTION(HAWKNL_BUILTIN "HawkNL builtin support" Yes)
OPTION(LIBZIP_BUILTIN "LibZIP builtin support" No)
OPTION(LIBLUA_BUILTIN "LibLua builtin support" Yes)
OPTION(STLPORT "STLport support" No)
OPTION(GCOREDUMPER "Google Coredumper support" No)
OPTION(PCH "Precompiled header (CMake 2.6 only)" No)
OPTION(ADVASSERT "Advanced assert" No)
OPTION(PYTHON_DED_EMBEDDED "Python embedded in dedicated server"  No)
OPTION(OPTIM_PROJECTILES "Enable optimisations for projectiles" Yes)
OPTION(MEMSTATS "Enable memory statistics and debugging" No)
OPTION(HASBFD "Use libbfd for extended stack traces" Yes)
OPTION(BREAKPAD "Google Breakpad support" No)
OPTION(LINENOISE "builtin Linenose support (readline/libedit replacement)" Yes)
OPTION(DISABLE_JOYSTICK "Disable joystick support" No)
OPTION(BOOST_LINK_STATIC "Link boost-libs statically" No)
OPTION(MINGW_CROSS_COMPILE "Cross-compile Windows .EXE using i586-mingw32msvc-cc compiler" No)

IF (DEBUG)
	SET(CMAKE_BUILD_TYPE Debug)
ELSE (DEBUG)
	SET(CMAKE_BUILD_TYPE Release)
ENDIF (DEBUG)

IF (DEDICATED_ONLY)
	SET(X11 No)
	SET(WITH_G15 No)
ENDIF (DEDICATED_ONLY)

# Platform specific things can be put here
# Compilers and other specific variables can be found here:
# http://www.cmake.org/Wiki/CMake_Useful_Variables
IF(UNIX)
	IF(APPLE)
		SET(HAWKNL_BUILTIN ON)
		SET(LIBZIP_BUILTIN ON)
		SET(LIBLUA_BUILTIN ON)
		SET(X11 OFF)
		#SET(BOOST_LINK_STATIC ON)
	ENDIF(APPLE)

	IF (CYGWIN)
		SET(WITH_G15 OFF) # Linux library as of now
	ELSE (CYGWIN)
	ENDIF (CYGWIN)
	IF(CMAKE_C_COMPILER MATCHES i586-mingw32msvc-cc)
		SET(MINGW_CROSS_COMPILE ON)
	ENDIF(CMAKE_C_COMPILER MATCHES i586-mingw32msvc-cc)
	IF (MINGW_CROSS_COMPILE)
		SET(G15 OFF)
		SET(HAWKNL_BUILTIN ON) # We already have prebuilt HawkNL library
		SET(LIBZIP_BUILTIN ON)
		SET(LIBLUA_BUILTIN ON)
		SET(X11 OFF)
		SET(BOOST_LINK_STATIC ON)
	ENDIF (MINGW_CROSS_COMPILE)
ELSE(UNIX)
	IF(WIN32)
		SET(G15 OFF)
		SET(HAWKNL_BUILTIN OFF) # We already have prebuilt HawkNL library
		SET(X11 OFF)
	ELSE(WIN32)
	ENDIF(WIN32)
ENDIF(UNIX)


MESSAGE( "SYSTEM_DATA_DIR = ${SYSTEM_DATA_DIR}" )
MESSAGE( "DEBUG = ${DEBUG}" )
MESSAGE( "DEDICATED_ONLY = ${DEDICATED_ONLY}" )
MESSAGE( "G15 = ${G15}" )
MESSAGE( "X11 = ${X11}" )
MESSAGE( "HAWKNL_BUILTIN = ${HAWKNL_BUILTIN}" )
MESSAGE( "LIBZIP_BUILTIN = ${LIBZIP_BUILTIN}" )
MESSAGE( "LIBLUA_BUILTIN = ${LIBLUA_BUILTIN}" )
MESSAGE( "STLPORT = ${STLPORT}" )
MESSAGE( "GCOREDUMPER = ${GCOREDUMPER}" )
MESSAGE( "HASBFD = ${HASBFD}" )
MESSAGE( "BREAKPAD = ${BREAKPAD}" )
MESSAGE( "LINENOISE = ${LINENOISE}" )
MESSAGE( "CMAKE_C_COMPILER = ${CMAKE_C_COMPILER}" )
MESSAGE( "CMAKE_C_FLAGS = ${CMAKE_C_FLAGS}" )
MESSAGE( "CMAKE_CXX_COMPILER = ${CMAKE_CXX_COMPILER}" )
MESSAGE( "CMAKE_CXX_FLAGS = ${CMAKE_CXX_FLAGS}" )
# commented out because only devs need these options anyway
#MESSAGE( "PCH = ${PCH} (Precompiled header, CMake 2.6 only)" )
#MESSAGE( "ADVASSERT = ${ADVASSERT}" )
#MESSAGE( "PYTHON_DED_EMBEDDED = ${PYTHON_DED_EMBEDDED}" )
MESSAGE( "MINGW_CROSS_COMPILE = ${MINGW_CROSS_COMPILE}" )


PROJECT(openlierox)

EXEC_PROGRAM(mkdir ARGS -p bin OUTPUT_VARIABLE DUMMY)

# main includes
INCLUDE_DIRECTORIES(${OLXROOTDIR}/optional-includes/generated)
INCLUDE_DIRECTORIES(${OLXROOTDIR}/include)
INCLUDE_DIRECTORIES(${OLXROOTDIR}/src)
INCLUDE_DIRECTORIES(${OLXROOTDIR}/libs/pstreams)

IF(ADVASSERT)
	INCLUDE_DIRECTORIES(${OLXROOTDIR}/optional-includes/advanced-assert)
ENDIF(ADVASSERT)

# TODO: don't hardcode path here
IF(NOT WIN32 AND NOT MINGW_CROSS_COMPILE)
	INCLUDE_DIRECTORIES(/usr/include/libxml2)
	INCLUDE_DIRECTORIES(/usr/local/include/libxml2)
ENDIF(NOT WIN32 AND NOT MINGW_CROSS_COMPILE)


file(GLOB_RECURSE ALL_SRCS ${OLXROOTDIR}/src/*.c*)

IF(APPLE)
	file(GLOB_RECURSE MAC_SRCS ${OLXROOTDIR}/src/*.m*)
	SET(ALL_SRCS ${MAC_SRCS} ${ALL_SRCS})
ENDIF(APPLE)

IF (BREAKPAD)
	INCLUDE_DIRECTORIES(${OLXROOTDIR}/libs/breakpad/src)
	INCLUDE_DIRECTORIES(${OLXROOTDIR}/optional-includes/breakpad)
	ADD_DEFINITIONS("'-DBP_LOGGING_INCLUDE=\"breakpad_logging.h\"'")

	IF(MINGW_CROSS_COMPILE OR WIN32)

	ELSE(MINGW_CROSS_COMPILE OR WIN32)
		EXEC_PROGRAM(python ARGS ${CMAKE_CURRENT_SOURCE_DIR}/libs/breakpad_getallsources.py OUTPUT_VARIABLE BREAKPAD_SRCS)
		SET(ALL_SRCS ${BREAKPAD_SRCS} ${ALL_SRCS})		
	ENDIF(MINGW_CROSS_COMPILE OR WIN32)
ELSE (BREAKPAD)
	ADD_DEFINITIONS(-DNBREAKPAD)
ENDIF (BREAKPAD)

IF (LINENOISE)
	ADD_DEFINITIONS(-DHAVE_LINENOISE)
	INCLUDE_DIRECTORIES(${OLXROOTDIR}/libs/linenoise)
	SET(ALL_SRCS ${OLXROOTDIR}/libs/linenoise/linenoise.cpp ${ALL_SRCS})
ENDIF (LINENOISE)

IF (DISABLE_JOYSTICK)
	ADD_DEFINITIONS(-DDISABLE_JOYSTICK)
ENDIF (DISABLE_JOYSTICK)

IF (GCOREDUMPER)
	INCLUDE_DIRECTORIES(${OLXROOTDIR}/libs/coredumper/src)
	ADD_DEFINITIONS(-DGCOREDUMPER)
	AUX_SOURCE_DIRECTORY(${OLXROOTDIR}/libs/coredumper/src COREDUMPER_SRCS)
	SET(ALL_SRCS ${ALL_SRCS} ${COREDUMPER_SRCS})
ENDIF (GCOREDUMPER)

IF (HAWKNL_BUILTIN)
	INCLUDE_DIRECTORIES(${OLXROOTDIR}/libs/hawknl/include)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/libs/hawknl/src/crc.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/libs/hawknl/src/errorstr.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/libs/hawknl/src/nl.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/libs/hawknl/src/sock.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/libs/hawknl/src/group.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/libs/hawknl/src/loopback.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/libs/hawknl/src/err.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/libs/hawknl/src/thread.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/libs/hawknl/src/mutex.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/libs/hawknl/src/condition.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/libs/hawknl/src/nltime.c)
ELSE (HAWKNL_BUILTIN)
	INCLUDE_DIRECTORIES(/usr/include/hawknl)
ENDIF (HAWKNL_BUILTIN)

IF (LIBZIP_BUILTIN)
	INCLUDE_DIRECTORIES(${OLXROOTDIR}/libs/libzip)
	AUX_SOURCE_DIRECTORY(${OLXROOTDIR}/libs/libzip LIBZIP_SRCS)
	SET(ALL_SRCS ${ALL_SRCS} ${LIBZIP_SRCS})
ENDIF (LIBZIP_BUILTIN)

IF (LIBLUA_BUILTIN)
	INCLUDE_DIRECTORIES(${OLXROOTDIR}/libs/lua)
	AUX_SOURCE_DIRECTORY(${OLXROOTDIR}/libs/lua LIBLUA_SRCS)
	SET(ALL_SRCS ${ALL_SRCS} ${LIBLUA_SRCS})
ELSE (LIBLUA_BUILTIN)
	# TODO: Make this even more dynamic, search for the directory somehow? Like you can search for linking options with pkg-config?
	#Search for lua5.1 first
	IF(EXISTS /usr/include/lua5.1)
		SET(LUA_SEARCHDIR /usr/include/lua5.1)
	ENDIF(EXISTS /usr/include/lua5.1)
	
	#On some systems, e.g. Fedora, it may be lua-5.1
	IF(NOT LUA_SEARCHDIR)
		IF(EXISTS /usr/include/lua-5.1)
			SET(LUA_SEARCHDIR /usr/include/lua-5.1)
		ENDIF(EXISTS /usr/include/lua-5.1)
	ENDIF(NOT LUA_SEARCHDIR)

	#If not found, try "lua", but give a warning
	IF(NOT LUA_SEARCHDIR)
		MESSAGE(WARNING "No Lua 5.1 header directory found. Trying default lua but it may not work. You may have to install Lua 5.1 development packages, or use the built-in library")
		IF(EXISTS /usr/include/lua)
			SET(LUA_SEARCHDIR /usr/include/lua)
		ENDIF(EXISTS /usr/include/lua)
	ENDIF(NOT LUA_SEARCHDIR)

	#Set the header path, or display a warning if it doesn't exist
	IF(LUA_SEARCHDIR)
		INCLUDE_DIRECTORIES(${LUA_SEARCHDIR})
	ELSE(LUA_SEARCHDIR)
		MESSAGE(WARNING "No Lua header directory found. Make sure that Lua 5.1 development packages are installed, or use the built-in library")
	ENDIF(LUA_SEARCHDIR)
ENDIF (LIBLUA_BUILTIN)

IF (STLPORT)
	INCLUDE_DIRECTORIES(/usr/include/stlport)
	ADD_DEFINITIONS(-D_FILE_OFFSET_BITS=64) # hm, don't know, at least it works for me (ppc32/amd32)
# debugging stuff for STLport
	ADD_DEFINITIONS(-D_STLP_DEBUG=1)
	ADD_DEFINITIONS(-D_STLP_DEBUG_LEVEL=_STLP_STANDARD_DBG_LEVEL)
	ADD_DEFINITIONS(-D_STLP_SHRED_BYTE=0xA3)
	ADD_DEFINITIONS(-D_STLP_DEBUG_UNINITIALIZED=1)
	ADD_DEFINITIONS(-D_STLP_DEBUG_ALLOC=1)
ENDIF (STLPORT)


IF(DEBUG)
	ADD_DEFINITIONS(-DDEBUG=1)
ENDIF(DEBUG)

IF(MEMSTATS)
	ADD_DEFINITIONS(-include ${OLXROOTDIR}/optional-includes/memdebug/memstats.h)
ENDIF(MEMSTATS)


# Generic defines
IF(WIN32)
	ADD_DEFINITIONS(-D_CRT_SECURE_NO_DEPRECATE -DHAVE_BOOST -DZLIB_WIN32_NODLL)
	SET(OPTIMIZE_COMPILER_FLAG /Ox /Ob2 /Oi /Ot /GL)
	IF(DEBUG)
		ADD_DEFINITIONS(-DUSE_DEFAULT_MSC_DELEAKER)
	ELSE(DEBUG)
		ADD_DEFINITIONS(${OPTIMIZE_COMPILER_FLAG})
	ENDIF(DEBUG)
	INCLUDE_DIRECTORIES(${OLXROOTDIR}/libs/hawknl/include
				${OLXROOTDIR}/libs/hawknl/src
				${OLXROOTDIR}/libs/libzip
				${OLXROOTDIR}/libs/boost_process)
ELSE(WIN32)
	ADD_DEFINITIONS(-Wall)
	ADD_DEFINITIONS("-std=c++0x")

	EXEC_PROGRAM(sh ARGS ${CMAKE_CURRENT_SOURCE_DIR}/get_version.sh OUTPUT_VARIABLE OLXVER)
	string(REGEX REPLACE "[\r\n]" " " OLXVER "${OLXVER}")
	MESSAGE( "OLX_VERSION = ${OLXVER}" )

	IF(MINGW_CROSS_COMPILE)
		ADD_DEFINITIONS(-DHAVE_BOOST -DZLIB_WIN32_NODLL -DLIBXML_STATIC -DNONDLL -DCURL_STATICLIB -D_XBOX # _XBOX to link OpenAL statically
							-D_WIN32_WINNT=0x0500 -D_WIN32_WINDOWS=0x0500 -DWINVER=0x0500)
		INCLUDE_DIRECTORIES(
					${OLXROOTDIR}/build/mingw/include
					${OLXROOTDIR}/libs/hawknl/include
					${OLXROOTDIR}/libs/hawknl/src
					${OLXROOTDIR}/libs/libzip
					${OLXROOTDIR}/libs/lua
					${OLXROOTDIR}/libs/boost_process)
		# as long as we dont have breakpad, this doesnt make sense
		ADD_DEFINITIONS(-gdwarf-2 -g1) # By default GDB uses STABS and produces 300Mb exe - DWARF will produce 40Mb and no line numbers, -g2 will give 170Mb
	ELSE(MINGW_CROSS_COMPILE)
		ADD_DEFINITIONS("-pthread")
	ENDIF(MINGW_CROSS_COMPILE)

	SET(OPTIMIZE_COMPILER_FLAG -O3)
ENDIF(WIN32)

IF(OPTIM_PROJECTILES)
	#Always optimize these files - they make debug build unusable otherwise
	SET_SOURCE_FILES_PROPERTIES(	${OLXROOTDIR}/src/common/PhysicsLX56_Projectiles.cpp
						PROPERTIES COMPILE_FLAGS ${OPTIMIZE_COMPILER_FLAG})
ENDIF(OPTIM_PROJECTILES)

# SDL libs
IF(WIN32)
ELSEIF(APPLE)
	INCLUDE_DIRECTORIES(${OLXROOTDIR}/build/Xcode/include)
	INCLUDE_DIRECTORIES(${OLXROOTDIR}/build/Xcode/freealut/include)
	INCLUDE_DIRECTORIES(/Library/Frameworks/SDL.framework/Headers)
	INCLUDE_DIRECTORIES(/Library/Frameworks/SDL_image.framework/Headers)
	INCLUDE_DIRECTORIES(/Library/Frameworks/SDL_mixer.framework/Headers)
	INCLUDE_DIRECTORIES(/Library/Frameworks/UnixImageIO.framework/Headers)
	INCLUDE_DIRECTORIES(/Library/Frameworks/GD.framework/Headers)
ELSEIF(MINGW_CROSS_COMPILE)
	INCLUDE_DIRECTORIES(${OLXROOTDIR}/build/mingw/include/SDL)
ELSE()
	EXEC_PROGRAM(sdl2-config ARGS --cflags OUTPUT_VARIABLE SDLCFLAGS)
	string(REGEX REPLACE "[\r\n]" " " SDLCFLAGS "${SDLCFLAGS}")
	ADD_DEFINITIONS(${SDLCFLAGS})
endif(WIN32)


IF(X11)
	ADD_DEFINITIONS("-DX11")
ENDIF(X11)
IF(DEDICATED_ONLY)
	ADD_DEFINITIONS("-DDEDICATED_ONLY")
ENDIF(DEDICATED_ONLY)


IF(G15)
	ADD_DEFINITIONS("-DWITH_G15")
ENDIF(G15)

IF(HASBFD)
	ADD_DEFINITIONS("-DHASBFD")
	SET(LIBS ${LIBS} dl bfd opcodes iberty)
	INCLUDE_DIRECTORIES(/usr/include/libiberty)
ENDIF(HASBFD)


IF(BOOST_LINK_STATIC)
	# seems this is the way for Debian:
	SET(LIBS ${LIBS} boost_signals.a)
	IF(MINGW_CROSS_COMPILE)
		SET(LIBS ${LIBS} boost_system.a)
	ENDIF(MINGW_CROSS_COMPILE)
	# and this on newer CMake (>=2.6?)
	SET(LIBS ${LIBS} /usr/lib/x86_64-linux-gnu/libboost_signals.a /usr/lib/x86_64-linux-gnu/libboost_system.a)
ELSE(BOOST_LINK_STATIC)
	FIND_PACKAGE(Boost COMPONENTS system REQUIRED)
	SET(LIBS ${LIBS} ${Boost_LIBRARIES})
ENDIF(BOOST_LINK_STATIC)

IF(APPLE)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/build/Xcode/freealut/src/alutBufferData.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/build/Xcode/freealut/src/alutCodec.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/build/Xcode/freealut/src/alutError.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/build/Xcode/freealut/src/alutInit.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/build/Xcode/freealut/src/alutInputStream.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/build/Xcode/freealut/src/alutLoader.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/build/Xcode/freealut/src/alutOutputStream.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/build/Xcode/freealut/src/alutUtil.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/build/Xcode/freealut/src/alutVersion.c)
	SET(ALL_SRCS ${ALL_SRCS} ${OLXROOTDIR}/build/Xcode/freealut/src/alutWaveform.c)
	ADD_DEFINITIONS("-F ${OLXROOTDIR}/build/Xcode")
ELSE(APPLE)
	SET(LIBS ${LIBS} alut openal vorbisfile)
ENDIF(APPLE)

SET(LIBS ${LIBS} curl)

if(APPLE)
	FIND_PACKAGE(SDL REQUIRED)
	FIND_PACKAGE(SDL_image REQUIRED)
	SET(LIBS ${LIBS} ${SDL_LIBRARY} ${SDLIMAGE_LIBRARY})
	SET(LIBS ${LIBS} "-framework Cocoa" "-framework Carbon")
	SET(LIBS ${LIBS} crypto)
	SET(LIBS ${LIBS} "-framework OpenAL")
	SET(LIBS ${LIBS} "-logg" "-lvorbis" "-lvorbisfile")
else(APPLE)
	SET(LIBS ${LIBS} SDL2 SDL2_image)
endif(APPLE)

IF(WIN32)
	SET(LIBS ${LIBS} SDL_mixer wsock32 wininet dbghelp
				"${OLXROOTDIR}/build/msvc/libs/SDLmain.lib"
				"${OLXROOTDIR}/build/msvc/libs/libxml2.lib"
				"${OLXROOTDIR}/build/msvc/libs/NLstatic.lib"
				"${OLXROOTDIR}/build/msvc/libs/libzip.lib"
				"${OLXROOTDIR}/build/msvc/libs/zlib.lib"
				"${OLXROOTDIR}/build/msvc/libs/bgd.lib")
ELSEIF(APPLE)
	link_directories(/Library/Frameworks/SDL_mixer.framework)
	link_directories(/Library/Frameworks/SDL_image.framework)
ELSEIF(MINGW_CROSS_COMPILE)

ELSE()
	EXEC_PROGRAM(sdl2-config ARGS --libs OUTPUT_VARIABLE SDLLIBS)
	STRING(REGEX REPLACE "[\r\n]" " " SDLLIBS "${SDLLIBS}")
ENDIF(WIN32)

if(UNIX)
	IF (NOT HAWKNL_BUILTIN)
		SET(LIBS ${LIBS} NL)
	ENDIF (NOT HAWKNL_BUILTIN)
	IF (NOT LIBZIP_BUILTIN)
		SET(LIBS ${LIBS} zip)
	ENDIF (NOT LIBZIP_BUILTIN)
	IF (NOT LIBLUA_BUILTIN)
		EXEC_PROGRAM(pkg-config ARGS lua5.1 --libs --silence-errors OUTPUT_VARIABLE LIBLUA_NAME) #Search for lua5.1 first because newer versions seem to be incompatible
		IF(NOT LIBLUA_NAME)
			EXEC_PROGRAM(pkg-config ARGS lua-5.1 --libs --silence-errors OUTPUT_VARIABLE LIBLUA_NAME) #On some systems, e.g. Fedora, it may be lua-5.1
		ENDIF(NOT LIBLUA_NAME)
		IF(NOT LIBLUA_NAME)
			EXEC_PROGRAM(pkg-config ARGS lua51 --libs --silence-errors OUTPUT_VARIABLE LIBLUA_NAME) #On Arch Linux pkg-config wants lua51 even though the result is still -llua5.1 -lm...
		ENDIF(NOT LIBLUA_NAME)
		IF(NOT LIBLUA_NAME)
			MESSAGE(WARNING "No Lua 5.1 found - searching for default Lua, but it may not work. You may have to install Lua 5.1 packages or use the built-in library")
			EXEC_PROGRAM(pkg-config ARGS lua --libs --silence-errors OUTPUT_VARIABLE LIBLUA_NAME) #Search for lua if neither found
		ENDIF(NOT LIBLUA_NAME)
		IF(NOT LIBLUA_NAME)
			MESSAGE(WARNING "No Lua found by pkg-config - trying default Lua, but it may not work. Make sure that Lua 5.1 packages are installed, or use the built-in library") 
			SET(LIBLUA_NAME lua) #Set default if nothing works, although this will likely lead to errors
		ENDIF(NOT LIBLUA_NAME)
		SET(LIBS ${LIBS} ${LIBLUA_NAME})
	ENDIF (NOT LIBLUA_BUILTIN)
	IF(X11)
		SET(LIBS ${LIBS} X11)
	ENDIF(X11)
	IF (STLPORT)
		SET(LIBS ${LIBS} stlportstlg)
	ENDIF (STLPORT)
	IF (G15)
		SET(LIBS ${LIBS} g15daemon_client g15render)
	ENDIF (G15)

	SET(LIBS ${LIBS} ${SDLLIBS} xml2 z)
	IF(NOT MINGW_CROSS_COMPILE)
		SET(LIBS ${LIBS} ${SDLLIBS} pthread)
	ENDIF(NOT MINGW_CROSS_COMPILE)
endif(UNIX)

IF (NOT DEDICATED_ONLY)
	if(APPLE)
                SET(LIBS ${LIBS} gd)
		#SET(LIBS ${LIBS} "-framework GD")
	elseif(UNIX)
                SET(LIBS ${LIBS} gd)
	endif(APPLE)
ENDIF (NOT DEDICATED_ONLY)

IF(MINGW_CROSS_COMPILE)
	SET(LIBS ${LIBS} SDLmain SDL boost_system jpeg png vorbisenc vorbis ogg dbghelp dsound dxguid wsock32 wininet wldap32 user32 gdi32 winmm version kernel32)
ENDIF(MINGW_CROSS_COMPILE)

ADD_DEFINITIONS('-D SYSTEM_DATA_DIR=\"${SYSTEM_DATA_DIR}\"')