include(CheckCXXCompilerFlag)

add_executable(SRB2SDL2 MACOSX_BUNDLE WIN32
	comptime.c
	cxxutil.hpp
	md5.c
	config.h.in
	string.c
	d_main.cpp
	d_clisrv.c
	d_net.cpp
	d_netfil.c
	d_netcmd.c
	dehacked.c
	deh_soc.c
	deh_lua.c
	deh_tables.c
	z_zone.cpp
	f_finale.c
	f_wipe.cpp
	g_build_ticcmd.cpp
	g_demo.cpp
	g_game.c
	g_gamedata.cpp
	g_input.c
	g_party.cpp
	am_map.c
	command.c
	console.c
	cvars.cpp
	font.c
	hu_stuff.c
	i_time.c
	i_video_common.cpp
	y_inter.cpp
	st_stuff.c
	m_aatree.c
	m_anigif.c
	m_argv.c
	m_bbox.c
	m_cheat.c
	m_cond.c
	m_easing.c
	m_fixed.c
	m_memcpy.c
	m_misc.cpp
	m_perfstats.c
	m_pw.cpp
	m_pw_hash.c
	m_random.c
	m_queue.c
	info.c
	p_ceilng.c
	p_enemy.c
	p_floor.c
	p_inter.c
	p_lights.c
	p_link.cpp
	p_loop.c
	p_map.c
	p_mapthing.cpp
	p_maputl.c
	p_mobj.c
	p_polyobj.c
	p_saveg.cpp
	p_setup.cpp
	p_sight.c
	p_spec.c
	p_telept.c
	p_tick.c
	p_user.c
	p_slopes.c
	p_sweep.cpp
	p_test.cpp
	tables.c
	r_bsp.cpp
	r_data.c
	r_debug.cpp
	r_debug_parser.cpp
	r_debug_printer.cpp
	r_draw.cpp
	r_fps.cpp
	r_main.cpp
	r_plane.cpp
	r_segs.cpp
	r_skins.c
	r_sky.c
	r_splats.c
	r_spritefx.cpp
	r_things.cpp
	r_bbox.c
	r_textures.cpp
	r_textures_dups.cpp
	r_patch.cpp
	r_patchrotation.c
	r_picformats.c
	r_portal.c
	screen.c
	taglist.c
	v_draw.cpp
	v_video.cpp
	s_sound.c
	sounds.c
	w_wad.cpp
	filesrch.c
	mserv.c
	http-mserv.c
	i_tcp.c
	lzf.c
	vid_copy.s
	lua_script.c
	lua_baselib.c
	lua_mathlib.c
	lua_hooklib.c
	lua_consolelib.c
	lua_infolib.c
	lua_mobjlib.c
	lua_playerlib.c
	lua_skinlib.c
	lua_thinkerlib.c
	lua_maplib.c
	lua_taglib.c
	lua_terrainlib.c
	lua_polyobjlib.c
	lua_blockmaplib.c
	lua_botvarslib.c
	lua_hudlib.c
	lua_hudlib_drawlist.c
	lua_followerlib.c
	lua_itemroulettelib.c
	lua_respawnvarslib.c
	lua_waypointslib.c
	lua_grandprixlib.c
	lua_profile.cpp
	k_kart.c
	k_respawn.c
	k_collide.cpp
	k_color.c
	k_race.c
	k_battle.c
	k_pwrlv.c
	k_waypoint.cpp
	k_pathfind.c
	k_bheap.c
	k_bot.cpp
	k_botitem.cpp
	k_botsearch.cpp
	k_grandprix.cpp
	k_boss.c
	k_hud.cpp
	k_hud_track.cpp
	k_menufunc.c
	k_menudraw.c
	k_terrain.c
	k_brightmap.c
	k_terrain.c
	k_director.cpp
	k_follower.c
	k_profiles.cpp
	k_specialstage.c
	k_roulette.c
	k_podium.cpp
	k_rank.cpp
	k_vote.c
	k_serverstats.c
	k_zvote.c
	k_mapuser.c
	k_powerup.cpp
	k_hitlag.c
	k_dialogue.cpp
	k_tally.cpp
	k_bans.cpp
	k_endcam.cpp
	k_credits.cpp
	k_modinfo.cpp
	music.cpp
	music_manager.cpp
	sanitize.cpp
	p_deepcopy.cpp
)

# Always compile some files with optimizations in Debug config.
# This is to make the debugging experience less slow for the majority of cases.
set(always_optimize_options "")
if(MSVC)
	set(always_optimize_options "$<$<CONFIG:Debug>:/O2;/Ob2>")
else()
	set(always_optimize_options "$<$<CONFIG:Debug>:-O3>")
endif()
set_source_files_properties(
	r_bsp.cpp
	r_data.c
	r_debug.cpp
	r_debug_parser.cpp
	r_debug_printer.cpp
	r_draw.cpp
	r_fps.cpp
	r_main.cpp
	r_plane.cpp
	r_segs.cpp
	r_skins.c
	r_sky.c
	r_splats.c
	r_spritefx.cpp
	r_things.cpp
	r_bbox.c
	r_textures.cpp
	r_textures_dups.cpp
	r_patch.cpp
	r_patchrotation.c
	r_picformats.c
	r_portal.c
	PROPERTIES
	COMPILE_OPTIONS "${always_optimize_options}"
)

set_target_properties(SRB2SDL2 PROPERTIES MACOSX_BUNDLE_INFO_PLIST "${CMAKE_CURRENT_SOURCE_DIR}/sdl/macosx/MacOSXBundleInfo.plist.in")

if(SRB2_CONFIG_ENABLE_WEBM_MOVIES)
	target_sources(SRB2SDL2 PRIVATE m_avrecorder.cpp)
endif()

if(NOT SRB2_CONFIG_SKIP_COMPTIME)
	# This updates the modification time for comptime.c at the
	# end of building so when the build system is ran next time,
	# that file gets flagged. comptime.c will always be rebuilt.
	#
	# This begs the question, why always rebuild comptime.c?
	# Some things like the git commit must be checked each time
	# the program is built. But the build system determines which
	# files should be rebuilt before anything else. So
	# comptime.c, which only needs to be rebuilt based on
	# information known at build time, must be told to rebuild
	# before that information can be ascertained.
	add_custom_command(
		TARGET SRB2SDL2
		POST_BUILD
		COMMAND ${CMAKE_COMMAND} -E touch_nocreate ${CMAKE_CURRENT_SOURCE_DIR}/comptime.c
	)
endif()

# config.h is generated by this command. It should be done at
# build time for accurate git information and before anything
# that needs it, obviously.
add_custom_target(_SRB2_reconf ALL
	COMMAND ${CMAKE_COMMAND} -DGIT_EXECUTABLE=${GIT_EXECUTABLE} -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DBINARY_DIR=${CMAKE_CURRENT_BINARY_DIR}/.. -P ${CMAKE_CURRENT_SOURCE_DIR}/../cmake/Comptime.cmake
	WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/.."
)
add_dependencies(SRB2SDL2 _SRB2_reconf)

if(("${CMAKE_COMPILER_IS_GNUCC}") AND "${CMAKE_SYSTEM_NAME}" MATCHES "Windows")
	target_link_options(SRB2SDL2 PRIVATE "-Wl,--disable-dynamicbase")
	if("${SRB2_CONFIG_STATIC_STDLIB}")
		# On MinGW with internal libraries, link the standard library statically
		target_link_options(SRB2SDL2 PRIVATE -Wl,--add-stdcall-alias -static-libgcc -static-libstdc++ -static -lpthread)
		set(THREADS_PREFER_PTHREAD_FLAG TRUE)
		find_package(Threads REQUIRED)
		target_link_libraries(SRB2SDL2 PRIVATE Threads::Threads)
	endif()
	if(CMAKE_SIZEOF_VOID_P EQUAL 4)
		target_link_options(SRB2SDL2 PRIVATE "-Wl,--large-address-aware")
	endif()
endif()

if(MSVC OR CMAKE_CXX_LINK_EXECUTABLE MATCHES "lld-link\\.exe")
	target_link_options(SRB2SDL2 PRIVATE /MANIFEST:NO)
	target_link_libraries(SRB2SDL2 PRIVATE "dbghelp")

endif()

if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND MSVC)
	# Stuff to make paths not include the builder's file system paths on clang-cl
	string(REPLACE "/" "\\" backslashes_cmake_source_dir "${CMAKE_SOURCE_DIR}")
	target_compile_options(SRB2SDL2 PRIVATE "$<$<CONFIG:RelWithDebInfo,Release>:/clang:-fdebug-prefix-map=${CMAKE_SOURCE_DIR}=X:/ringracers>")
	target_compile_options(SRB2SDL2 PRIVATE "$<$<CONFIG:RelWithDebInfo,Release>:/clang:-fdebug-prefix-map=${backslashes_cmake_source_dir}=X:/ringracers>")
	target_compile_options(SRB2SDL2 PRIVATE "$<$<CONFIG:RelWithDebInfo,Release>:/clang:-fdebug-compilation-dir=${CMAKE_SOURCE_DIR}>")
	target_link_options(SRB2SDL2 PRIVATE "$<$<CONFIG:RelWithDebInfo,Release>:/pdbaltpath:%_PDB%>")
endif()

target_compile_features(SRB2SDL2 PRIVATE c_std_11 cxx_std_17)
set_target_properties(SRB2SDL2 PROPERTIES
	C_STANDARD 11
	C_STANDARD_REQUIRED ON
	C_STANDARD_EXTENSIONS OFF
	CXX_STANDARD 17
	CXX_STANDARD_REQUIRED ON
	CXX_EXTENSIONS OFF
)

set(SRB2_ASM_SOURCES vid_copy.s)

set(SRB2_NASM_SOURCES tmap_mmx.nas tmap.nas)

### Configuration
set(SRB2_CONFIG_USEASM OFF CACHE BOOL
	"Enable NASM tmap implementation for software mode speedup.")
set(SRB2_CONFIG_YASM OFF CACHE BOOL
	"Use YASM in place of NASM.")

add_subdirectory(blua)

# OS macros
if (UNIX)
	target_compile_definitions(SRB2SDL2 PRIVATE -DUNIXCOMMON)
endif()

if (BSD MATCHES "FreeBSD")
	target_compile_definitions(SRB2SDL2 PRIVATE -DFREEBSD)
endif()

if(CMAKE_COMPILER_IS_GNUCC)
	find_program(OBJCOPY objcopy)
endif()

if("${CMAKE_SYSTEM_NAME}" MATCHES "Linux")
	target_compile_definitions(SRB2SDL2 PRIVATE -DLINUX)
	if(${SRB2_SYSTEM_BITS} EQUAL 64)
		target_compile_definitions(SRB2SDL2 PRIVATE -DLINUX64)
	endif()
endif()

if("${CMAKE_SYSTEM_NAME}" MATCHES "Haiku")
	target_compile_definitions(SRB2SDL2 PRIVATE -DNOEXECINFO)
	target_link_libraries(SRB2SDL2 PRIVATE network)
endif()

if("${CMAKE_SYSTEM_NAME}" MATCHES "Darwin")
	target_compile_definitions(SRB2SDL2 PRIVATE -DMACOSX)
endif()

# Enable SSE2 for IA-32.
if(SRB2_SYSTEM_BITS EQUAL 32)
	if(CMAKE_CXX_COMPILER_ID MATCHES "(GNU|Clang|AppleClang)")
		check_cxx_compiler_flag("-msse2" has_sse2)
		if(has_sse2)
			message(STATUS "Using SSE2 on IA-32")
			target_compile_options(SRB2SDL2 PRIVATE "-msse2")
		else()
			message(FATAL_ERROR "Needs -msse2 compiler support")
		endif()
	elseif(MSVC)
		check_cxx_compiler_flag("/arch:sse2" has_sse2)
		if(has_sse2)
			message(STATUS "Using SSE2 on IA-32")
			target_compile_options(SRB2SDL2 PRIVATE "/arch:SSE2")
		else()
			message(FATAL_ERROR "Needs /arch:SSE2 compiler support")
		endif()
	endif()
endif()

target_link_libraries(SRB2SDL2 PRIVATE ZLIB::ZLIB)
target_link_libraries(SRB2SDL2 PRIVATE PNG::PNG)
target_link_libraries(SRB2SDL2 PRIVATE CURL::libcurl)
target_link_libraries(SRB2SDL2 PRIVATE Opus::opus)
if(WIN32 AND NOT MINGW)
	target_link_libraries(SRB2SDL2 PRIVATE cpptrace::cpptrace)
	target_compile_definitions(SRB2SDL2 PRIVATE HAVE_CPPTRACE)
endif()
target_link_libraries(SRB2SDL2 PRIVATE ReNameNoise::renamenoise)
if("${CMAKE_SYSTEM_NAME}" MATCHES "FreeBSD")
	target_link_libraries(SRB2SDL2 PRIVATE -lexecinfo)
	target_link_libraries(SRB2SDL2 PRIVATE -lpthread)
endif()
target_compile_definitions(SRB2SDL2 PRIVATE -DHAVE_ZLIB -DHAVE_PNG -DHAVE_CURL -D_LARGEFILE64_SOURCE)
target_sources(SRB2SDL2 PRIVATE apng.c)

target_compile_definitions(SRB2SDL2 PRIVATE -DUSE_STUN)
target_sources(SRB2SDL2 PRIVATE stun.cpp)
if(SRB2_CONFIG_ENABLE_DISCORDRPC)
	target_link_libraries(SRB2SDL2 PRIVATE DiscordRPC::DiscordRPC)
	target_compile_definitions(SRB2SDL2 PRIVATE -DHAVE_DISCORDRPC)
	target_sources(SRB2SDL2 PRIVATE discord.c)
endif()

target_link_libraries(SRB2SDL2 PRIVATE tcbrindle::span)
target_link_libraries(SRB2SDL2 PRIVATE glm::glm)
target_link_libraries(SRB2SDL2 PRIVATE Stb)
target_link_libraries(SRB2SDL2 PRIVATE xmp-lite::xmp-lite)
target_link_libraries(SRB2SDL2 PRIVATE glad::glad)
target_link_libraries(SRB2SDL2 PRIVATE fmt::fmt-header-only)
target_link_libraries(SRB2SDL2 PRIVATE imgui::imgui)
target_link_libraries(SRB2SDL2 PRIVATE Tracy::TracyClient)
if(SRB2_CONFIG_ENABLE_WEBM_MOVIES)
	target_link_libraries(SRB2SDL2 PRIVATE webm::libwebm_mkvmuxer)
	target_link_libraries(SRB2SDL2 PRIVATE libyuv::libyuv)
	target_link_libraries(SRB2SDL2 PRIVATE Vorbis::vorbis Vorbis::vorbisenc)
	target_link_libraries(SRB2SDL2 PRIVATE Ogg::ogg)
	if(unofficial-libvpx_FOUND)
		target_link_libraries(SRB2SDL2 PRIVATE unofficial::libvpx::libvpx)
	else()
		target_link_libraries(SRB2SDL2 PRIVATE libvpx::libvpx)
	endif()
	target_compile_definitions(SRB2SDL2 PRIVATE -DSRB2_CONFIG_ENABLE_WEBM_MOVIES)
endif()

target_link_libraries(SRB2SDL2 PRIVATE nlohmann_json::nlohmann_json)

set(SRB2_HAVE_THREADS ON)
target_compile_definitions(SRB2SDL2 PRIVATE -DHAVE_THREADS)

if(${SRB2_CONFIG_HAVE_ZLIB})
	if(${SRB2_CONFIG_USE_INTERNAL_LIBRARIES})
		set(ZLIB_FOUND ON)
		set(ZLIB_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/libs/zlib)
		if(${SRB2_SYSTEM_BITS} EQUAL 64)
			set(ZLIB_LIBRARIES "-L${CMAKE_SOURCE_DIR}/libs/zlib/win32 -lz64")
		else() # 32-bit
			set(ZLIB_LIBRARIES "-L${CMAKE_SOURCE_DIR}/libs/zlib/win32 -lz32")
		endif()
	else()
		find_package(ZLIB)
	endif()
	if(${ZLIB_FOUND})
		set(SRB2_HAVE_ZLIB ON)
		target_compile_definitions(SRB2SDL2 PRIVATE -DHAVE_ZLIB)
	else()
		message(WARNING "You have specified that ZLIB is available but it was not found. Dr Robotnik's Ring Racers may not compile correctly.")
	endif()
endif()

if(${SRB2_CONFIG_HAVE_PNG} AND ${SRB2_CONFIG_HAVE_ZLIB})
	if (${ZLIB_FOUND})
		if(${SRB2_CONFIG_USE_INTERNAL_LIBRARIES})
			set(PNG_FOUND ON)
			set(PNG_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/libs/libpng-src)
			if(${SRB2_SYSTEM_BITS} EQUAL 64)
				set(PNG_LIBRARIES "-L${CMAKE_SOURCE_DIR}/libs/libpng-src/projects -lpng64")
			else() # 32-bit
				set(PNG_LIBRARIES "-L${CMAKE_SOURCE_DIR}/libs/libpng-src/projects -lpng32")
			endif()
		else()
			find_package(PNG)
		endif()
		if(${PNG_FOUND})
			set(SRB2_HAVE_PNG ON)
			target_compile_definitions(SRB2SDL2 PRIVATE -DHAVE_PNG)
			target_compile_definitions(SRB2SDL2 PRIVATE -D_LARGEFILE64_SOURCE)
			target_sources(SRB2SDL2 PRIVATE apng.c)
		else()
			message(WARNING "You have specified that PNG is available but it was not found. Dr Robotnik's Ring Racers may not compile correctly.")
		endif()
	endif()
endif()

if("${SRB2_CONFIG_HWRENDER}")
	target_compile_definitions(SRB2SDL2 PRIVATE -DHWRENDER)
	add_subdirectory(hardware)

	if("${SRB2_CONFIG_STATIC_OPENGL}")
		find_package(OpenGL)
		if(${OPENGL_FOUND})
			target_compile_definitions(SRB2SDL2 PRIVATE -DSTATIC_OPENGL)
		else()
			message(WARNING "You have specified static opengl but opengl was not found. Not setting HWRENDER.")
		endif()
	endif()
endif()

if(${SRB2_CONFIG_USEASM})
	#SRB2_ASM_FLAGS can be used to pass flags to either nasm or yasm.
	if("${CMAKE_SYSTEM_NAME}" MATCHES "Linux")
		set(SRB2_ASM_FLAGS "-DLINUX ${SRB2_ASM_FLAGS}")
	endif()

	if(${SRB2_CONFIG_YASM})
		set(CMAKE_ASM_YASM_SOURCE_FILE_EXTENSIONS ${CMAKE_ASM_YASM_SOURCE_FILE_EXTENSIONS} nas)
		set(CMAKE_ASM_YASM_FLAGS "${SRB2_ASM_FLAGS}" CACHE STRING "Flags used by the assembler during all build types.")
		enable_language(ASM_YASM)
	else()
		set(CMAKE_ASM_NASM_SOURCE_FILE_EXTENSIONS ${CMAKE_ASM_NASM_SOURCE_FILE_EXTENSIONS} nas)
		set(CMAKE_ASM_NASM_FLAGS "${SRB2_ASM_FLAGS}" CACHE STRING "Flags used by the assembler during all build types.")
		enable_language(ASM_NASM)
	endif()

	set(SRB2_USEASM ON)
	target_compile_definitions(SRB2SDL2 PRIVATE -DUSEASM)
	target_compile_options(SRB2SDL2 PRIVATE -msse3 -mfpmath=sse)

	target_sources(SRB2SDL2 PRIVATE ${SRB2_ASM_SOURCES}
		${SRB2_NASM_SOURCES})
else()
	set(SRB2_USEASM OFF)
	target_compile_definitions(SRB2SDL2 PRIVATE -DNONX86 -DNORUSEASM)
endif()

# Targets

# If using CCACHE, then force it.
# https://github.com/Cockatrice/Cockatrice/pull/3052/files
if ("${CMAKE_SYSTEM_NAME}" MATCHES "Darwin")
	get_property(RULE_LAUNCH_COMPILE GLOBAL PROPERTY RULE_LAUNCH_COMPILE)
	if(RULE_LAUNCH_COMPILE)
		MESSAGE(STATUS "Force enabling CCache usage under macOS")
		# Set up wrapper scripts
		configure_file(${CMAKE_CURRENT_SOURCE_DIR}/../cmake/launch-c.in   ${CMAKE_BINARY_DIR}/launch-c)
		configure_file(${CMAKE_CURRENT_SOURCE_DIR}/../cmake/launch-cxx.in ${CMAKE_BINARY_DIR}/launch-cxx)
		execute_process(COMMAND chmod a+rx
			"${CMAKE_BINARY_DIR}/launch-c"
			"${CMAKE_BINARY_DIR}/launch-cxx")

		# Set Xcode project attributes to route compilation through our scripts
		set(CMAKE_XCODE_ATTRIBUTE_CC         "${CMAKE_BINARY_DIR}/launch-c")
		set(CMAKE_XCODE_ATTRIBUTE_CXX        "${CMAKE_BINARY_DIR}/launch-cxx")
		set(CMAKE_XCODE_ATTRIBUTE_LD         "${CMAKE_BINARY_DIR}/launch-c")
		set(CMAKE_XCODE_ATTRIBUTE_LDPLUSPLUS "${CMAKE_BINARY_DIR}/launch-cxx")
	endif()
endif()

# Compatibility flag with later versions of GCC
# We should really fix our code to not need this
if (NOT SRB2_CONFIG_FORCE_NO_MS_BITFIELDS)
  if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
	  check_cxx_compiler_flag("-mno-ms-bitfields" HAS_NO_MS_BITFIELDS)
	  if(HAS_NO_MS_BITFIELDS)
		  target_compile_options(SRB2SDL2 PRIVATE -mno-ms-bitfields)
		endif()
	endif()
endif()

# Yes we know we use insecure CRT functions...
if(WIN32 OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
	target_compile_definitions(SRB2SDL2 PRIVATE
		-D_CRT_SECURE_NO_WARNINGS
		-D_CRT_NONSTDC_NO_WARNINGS
		-D_WINSOCK_DEPRECATED_NO_WARNINGS
	)
endif()

# Compiler warnings configuration
target_compile_options(SRB2SDL2 PRIVATE
	# Using generator expressions to handle per-language compile options

	# C, GNU
	# This is a direct translation from versions.mk
	$<$<AND:$<COMPILE_LANGUAGE:C>,$<C_COMPILER_ID:GNU>>:
		-Wall
		-Werror-implicit-function-declaration
		-Wno-trigraphs
		-W # Was controlled by RELAXWARNINGS
		-pedantic
		-Wpedantic
		-Wfloat-equal
		-Wundef
		-Wpointer-arith
		-Wbad-function-cast
		-Wcast-qual
		-Wcast-align # Was controlled by NOCASTALIGNWARN
		-Wwrite-strings
		-Wsign-compare
		-Wmissing-prototypes
		-Wmissing-declarations
		-Wmissing-noreturn
		-Winline
		-Wformat-y2k
		-Wformat-security

		$<$<VERSION_LESS:$<C_COMPILER_VERSION>,2.9.5>:
			-Wno-div-by-zero
			-Wendif-labels
			-Wdisabled-optimization
		>

		$<$<VERSION_GREATER_EQUAL:$<C_COMPILER_VERSION>,4.0.0>:
			-Wold-style-definition
			-Wmissing-field-initializers
		>

		$<$<VERSION_GREATER_EQUAL:$<C_COMPILER_VERSION>,4.1.0>:
			-Wshadow
		>

		$<$<VERSION_GREATER_EQUAL:$<C_COMPILER_VERSION>,4.3.0>:
			-funit-at-a-time
			-Wlogical-op
		>

		$<$<VERSION_GREATER_EQUAL:$<C_COMPILER_VERSION>,4.5.0>:
			-Wlogical-op
			-Wno-error=array-bounds
		>

		$<$<VERSION_GREATER_EQUAL:$<C_COMPILER_VERSION>,4.6.0>:
			-Wno-suggest-attribute=noreturn
			-Wno-error=suggest-attribute=noreturn
			-Werror=vla
		>

		$<$<VERSION_GREATER_EQUAL:$<C_COMPILER_VERSION>,5.4.0>:
			-Wno-logical-op
			-Wno-error=logical-op
		>

		$<$<VERSION_GREATER_EQUAL:$<C_COMPILER_VERSION>,6.1.0>:
			-Wno-tautological-compare
			-Wno-error=tautological-compare
		>

		$<$<VERSION_GREATER_EQUAL:$<C_COMPILER_VERSION>,7.1.0>:
			-Wno-error=format-overflow=2
			-Wimplicit-fallthrough=4
		>

		$<$<VERSION_GREATER_EQUAL:$<C_COMPILER_VERSION>,8.1.0>:
			-Wno-error=format-overflow
			-Wno-error=stringop-truncation
			-Wno-error=stringop-overflow
			-Wno-format-overflow
			-Wno-stringop-truncation
			-Wno-stringop-overflow
			-Wno-error=multistatement-macros
		>

		$<$<VERSION_GREATER_EQUAL:$<C_COMPILER_VERSION>,9.1.0>:
			-Wno-error=address-of-packed-member
		>
	>

	# C, Clang and Apple Clang
	$<$<AND:$<COMPILE_LANGUAGE:C>,$<OR:$<C_COMPILER_ID:AppleClang>,$<C_COMPILER_ID:Clang>>>:
		#-Wall
		-Werror=microsoft
		-Werror=implicit-function-declaration
		-Wreturn-type # Missing returns in non-void function
		-Wduplicate-decl-specifier
		-Wsometimes-uninitialized
		-Wno-trigraphs # Trigraphs are disabled
		-Wc11-extensions # Don't use C11 language extensions not part of baseline
		-Wno-unused-but-set-variable # Setting unread variables is fine
		-Wno-misleading-indentation # Some cases in code currently
		-Wno-deprecated-non-prototype # We have no intention of using C23 yet.
		-Wno-parentheses-equality
		-Wno-unsafe-buffer-usage # Very common in this codebase
		-Wno-unused-const-variable
		-Wno-unused-variable
		-Wno-unused-function
	>

	# C, MSVC
	$<$<AND:$<COMPILE_LANGUAGE:C>,$<C_COMPILER_ID:MSVC>>:
		# All warnings at and before Visual Studio 2019 RTM
		# https://learn.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warnings-by-compiler-version?view=msvc-170
		/Wv:19.20.27004.0
	>

	# C++, GNU
	$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CXX_COMPILER_ID:GNU>>:
		-Wall
		-Wno-c++11-compat
		-Wno-c++14-compat # No C++14 compat needed
	>

	# C++, Clang and Apple Clang
	$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<OR:$<CXX_COMPILER_ID:AppleClang>,$<CXX_COMPILER_ID:Clang>>>:
		#-Wall
		-Werror=microsoft
		-Wdelete-abstract-non-virtual-dtor
		-Wreturn-type # Missing returns in non-void function
		-Wduplicate-decl-specifier
		-Wsometimes-uninitialized
		-Wno-trigraphs # Trigraphs are disabled
		-Wno-c++98-compat
		-Wno-c++11-compat
		-Wno-c++14-compat # No C++14 compat needed
		-Werror=c++20-extensions
		-Werror=c++23-extensions # Disallow newer language features entirely
		-Wno-unused-but-set-variable # Setting unread variables is fine (nontrivial C++ types issue)
		-Wno-misleading-indentation # Some cases in code currently
		-Wno-deprecated-non-prototype # We have no intention of using C23 yet.
		-Wno-parentheses-equality
		-Wno-unsafe-buffer-usage # Very common in this codebase
		-Wno-unused-const-variable
		-Wno-unused-variable
		-Wno-unused-function
	>

	# C++, Clang and Apple Clang

	# C++, MSVC
	$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CXX_COMPILER_ID:MSVC>>:
		/Wv:19.20.27004.0
	>

	# GNU
	$<$<C_COMPILER_ID:GNU>:
		-fmax-errors=5
	>
)
if(SRB2_CONFIG_ERRORMODE)
	target_compile_options(SRB2SDL2 PRIVATE
		$<$<OR:$<C_COMPILER_ID:GNU>,$<C_COMPILER_ID:AppleClang>,$<C_COMPILER_ID:Clang>>:
			-Werror
		>

		$<$<C_COMPILER_ID:MSVC>:
			/WX
		>
	)
endif()

# Link warnings configuration
target_link_options(SRB2SDL2 PRIVATE
	$<$<C_COMPILER_ID:GNU>:
		# -Wl,--as-needed   - Was controlled by NOLDWARNING
	>
)

if(${SRB2_CONFIG_DEV_BUILD})
	target_compile_definitions(SRB2SDL2 PRIVATE -DDEVELOP)
endif()
target_compile_definitions(SRB2SDL2 PRIVATE -DCMAKECONFIG)

# Misc. build options from Makefiles
if(SRB2_CONFIG_DEBUGMODE)
	target_compile_definitions(SRB2SDL2 PRIVATE -DZDEBUG -DPARANOIA -DPACKETDROP)
endif()
if(SRB2_CONFIG_TESTERS)
	target_compile_definitions(SRB2SDL2 PRIVATE -DTESTERS)
endif()
if(SRB2_CONFIG_MOBJCONSISTANCY)
	target_compile_definitions(SRB2SDL2 PRIVATE -DMOBJCONSISTANCY)
endif()
if(SRB2_CONFIG_PACKETDROP)
	target_compile_definitions(SRB2SDL2 PRIVATE -DPACKETDROP)
endif()
if(SRB2_CONFIG_EXECINFO)
else()
	target_compile_definitions(SRB2SDL2 PRIVATE -DNOEXECINFO)
	message(STATUS "You have disabled stack trace dump support")
endif()
if(SRB2_CONFIG_ZDEBUG)
	target_compile_definitions(SRB2SDL2 PRIVATE -DZDEBUG)
endif()
if(SRB2_CONFIG_PROFILEMODE AND "${CMAKE_C_COMPILER_ID}" STREQUAL "GNU")
	target_compile_options(SRB2SDL2 PRIVATE -pg)
	target_link_options(SRB2SDL2 PRIVATE -pg)
endif()
if(SRB2_CONFIG_ASAN)
	target_compile_options(SRB2SDL2 PRIVATE -fsanitize=address)
	target_link_options(SRB2SDL2 PRIVATE -fsanitize=address)
endif()

add_subdirectory(audio)
add_subdirectory(core)
add_subdirectory(hwr2)
add_subdirectory(io)
add_subdirectory(sdl)
add_subdirectory(objects)
add_subdirectory(acs)
add_subdirectory(rhi)
add_subdirectory(monocypher)
add_subdirectory(menus)
if(SRB2_CONFIG_ENABLE_WEBM_MOVIES)
	add_subdirectory(media)
endif()
add_subdirectory(hud)
add_subdirectory(modp_b64)

# strip debug symbols into separate file when using gcc or clang.
# to be consistent with Makefile, don't generate for OS X.
if((CMAKE_COMPILER_IS_GNUCC) AND NOT ("${CMAKE_SYSTEM_NAME}" MATCHES Darwin))
	if(${CMAKE_BUILD_TYPE} MATCHES RelWithDebInfo OR SRB2_CONFIG_ALWAYS_MAKE_DEBUGLINK)
		message(STATUS "Will make separate debug symbols in *.debug")
		add_custom_command(TARGET SRB2SDL2 POST_BUILD
			COMMAND ${CMAKE_OBJCOPY} ${OBJCOPY_ONLY_KEEP_DEBUG} $<TARGET_FILE:SRB2SDL2> $<TARGET_FILE:SRB2SDL2>.debug
			# mold linker: .gnu_debuglink is present by default, so --add-gnu-debuglink would fail
			COMMAND ${CMAKE_OBJCOPY} --strip-debug --remove-section=.gnu_debuglink $<TARGET_FILE:SRB2SDL2>
			COMMAND ${CMAKE_OBJCOPY} --add-gnu-debuglink=$<TARGET_FILE:SRB2SDL2>.debug $<TARGET_FILE:SRB2SDL2>
		)
	endif()
endif()

# copy DLLs to bin/ directory if building internal shared on windows
if("${CMAKE_SYSTEM_NAME}" STREQUAL Windows AND NOT "${SRB2_CONFIG_INTERNAL_LIBRARIES}" AND NOT MSVC)
	# also copy implicitly linked system libraries
	set(ADDITIONAL_DLLS "")
	if("${CMAKE_CXX_COMPILER_ID}" STREQUAL GNU)
		string(CONCAT gcc_search_dirs_path "${CMAKE_BINARY_DIR}" /gcc_search_dirs.txt)
		#message(STATUS gcc_search_dirs_path=${gcc_search_dirs_path})
		execute_process(
			COMMAND ${CMAKE_CXX_COMPILER} -print-search-dirs
			OUTPUT_FILE "${gcc_search_dirs_path}"
			#OUTPUT_VARIABLE gcc_search_dirs
		)

		file(READ "${gcc_search_dirs_path}" gcc_search_dirs)
		#message(STATUS gcc_search_dirs=${gcc_search_dirs})

		#set(gcc_install_dir "${gcc_search_dirs}")
		#string(REGEX MATCH "install: =[ \t]*([^\r\n]*)" gcc_install_dir "${gcc_install_dir}" )
		#set(gcc_install_dir "${CMAKE_MATCH_1}")
		#message(STATUS gcc_install_dir="${gcc_install_dir}")


		string(CONCAT gcc_search_dirs_install_path_1 "${CMAKE_BINARY_DIR}" /gcc_search_dirs_install_1.txt)
		#message(STATUS gcc_search_dirs_install_path_1=${gcc_search_dirs_install_path_1})
		execute_process(
			COMMAND grep "^install:"
			INPUT_FILE "${gcc_search_dirs_path}"
			OUTPUT_FILE "${gcc_search_dirs_install_path_1}"
		)

		string(CONCAT gcc_search_dirs_install_path_2 "${CMAKE_BINARY_DIR}" /gcc_search_dirs_install_2.txt)
		#message(STATUS gcc_search_dirs_install_path_2=${gcc_search_dirs_install_path_2})
		execute_process(
			COMMAND sed -e "s/^install: //" -e "s,=/,/,g"
			INPUT_FILE "${gcc_search_dirs_install_path_1}"
			OUTPUT_FILE "${gcc_search_dirs_install_path_2}"
		)

		if(NOT ("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Windows"))
			string(REPLACE ":" ";" gcc_install_dir "${gcc_install_dir}")
		endif()

		file(READ ${gcc_search_dirs_install_path_2} gcc_install_dir)

		#set(gcc_programs_dir "${gcc_search_dirs}")
		#string(REGEX MATCH "programs: =[ \t]*([^\r\n]*)" gcc_programs_dir "${gcc_programs_dir}" )
		#set(gcc_programs_dir "${CMAKE_MATCH_1}")
		#message(STATUS gcc_programs_dir="${gcc_programs_dir}")

		string(CONCAT gcc_search_dirs_programs_path_1 "${CMAKE_BINARY_DIR}" /gcc_search_dirs_programs_1.txt)
		#message(STATUS gcc_search_dirs_programs_path_1=${gcc_search_dirs_programs_path_1})
		execute_process(
			COMMAND grep "^programs:"
			INPUT_FILE "${gcc_search_dirs_path}"
			OUTPUT_FILE "${gcc_search_dirs_programs_path_1}"
		)

		string(CONCAT gcc_search_dirs_programs_path_2 "${CMAKE_BINARY_DIR}" /gcc_search_dirs_programs_2.txt)
		#message(STATUS gcc_search_dirs_programs_path_2=${gcc_search_dirs_programs_path_2})
		execute_process(
			COMMAND sed -e "s/^programs: =//" -e "s,=/,/,g"
			INPUT_FILE "${gcc_search_dirs_programs_path_1}"
			OUTPUT_FILE "${gcc_search_dirs_programs_path_2}"
		)

		file(READ ${gcc_search_dirs_programs_path_2} gcc_programs_dir)

		if(NOT ("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Windows"))
			string(REPLACE ":" ";" gcc_programs_dir "${gcc_programs_dir}")
		endif()

		#set(gcc_libraries_dir "${gcc_search_dirs}")
		#string(REGEX MATCH "libraries: =[ \t]*([^\r\n]*)" gcc_libraries_dir "${gcc_libraries_dir}" )
		#set(gcc_libraries_dir "${CMAKE_MATCH_1}")
		#message(STATUS gcc_libraries_dir="${gcc_libraries_dir}")

		string(CONCAT gcc_search_dirs_libraries_path_1 "${CMAKE_BINARY_DIR}" /gcc_search_dirs_libraries_1.txt)
		#message(STATUS gcc_search_dirs_libraries_path_1=${gcc_search_dirs_libraries_path_1})
		execute_process(
			COMMAND grep "^libraries:"
			INPUT_FILE "${gcc_search_dirs_path}"
			OUTPUT_FILE "${gcc_search_dirs_libraries_path_1}"
		)

		string(CONCAT gcc_search_dirs_libraries_path_2 "${CMAKE_BINARY_DIR}" /gcc_search_dirs_libraries_2.txt)
		#message(STATUS gcc_search_dirs_libraries_path_2=${gcc_search_dirs_libraries_path_2})
		execute_process(
			COMMAND sed -e "s/^libraries: =//" -e "s,=/,/,g"
			INPUT_FILE "${gcc_search_dirs_libraries_path_1}"
			OUTPUT_FILE "${gcc_search_dirs_libraries_path_2}"
		)

		file(READ ${gcc_search_dirs_libraries_path_2} gcc_libraries_dir)

		if(NOT ("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Windows"))
			string(REPLACE ":" ";" gcc_libraries_dir "${gcc_libraries_dir}")
		endif()

		#list(LENGTH gcc_install_dir gcc_install_dir_len)
		#list(LENGTH gcc_programs_dir gcc_programs_dir_len)
		#list(LENGTH gcc_libraries_dir gcc_libraries_dir_len)
		#message(STATUS gcc_install_dir_len="${gcc_install_dir_len}")
		#message(STATUS gcc_install_dir="${gcc_install_dir}")
		#message(STATUS gcc_programs_dir_len="${gcc_programs_dir_len}")
		#message(STATUS gcc_programs_dir="${gcc_programs_dir}")
		#message(STATUS gcc_libraries_dir_len="${gcc_libraries_dir_len}")
		#message(STATUS gcc_libraries_dir="${gcc_libraries_dir}")

		get_filename_component(CMAKE_CXX_COMPILER_DIR ${CMAKE_CXX_COMPILER} DIRECTORY)
		#message(STATUS CMAKE_CXX_COMPILER_DIR="${CMAKE_CXX_COMPILER_DIR}")

		set(OLD_CMAKE_FIND_LIBRARY_SUFFIXES  ${CMAKE_FIND_LIBRARY_SUFFIXES})
		set(CMAKE_FIND_LIBRARY_SUFFIXES "" ${CMAKE_FIND_LIBRARY_SUFFIXES})
		set(OLD_CMAKE_FIND_LIBRARY_PREFIXES  ${CMAKE_FIND_LIBRARY_PREFIXES})
		set(CMAKE_FIND_LIBRARY_PREFIXES "" ${CMAKE_FIND_LIBRARY_PREFIXES})

		find_library(LIBUNWIND
			NAMES "libunwind.dll"
			PATHS ${gcc_programs_dir} ${CMAKE_CXX_COMPILER_DIR}
		)
		if (LIBUNWIND)
			#message(STATUS LIBUNWIND="${LIBUNWIND}")
			list(APPEND ADDITIONAL_DLLS ${LIBUNWIND})
		endif()
		unset(LIBUNWIND)
		find_library(LIBGCC
			NAMES "libgcc_s_dw2-1.dll" "libgcc_s_sjlj-1.dll" "libgcc_s_seh-1.dll"
			PATHS ${gcc_programs_dir} ${CMAKE_CXX_COMPILER_DIR}
		)
		if (LIBGCC)
			#message(STATUS LIBGCC="${LIBGCC}")
			list(APPEND ADDITIONAL_DLLS ${LIBGCC})
		endif()
		unset(LIBGCC)
		find_library(LIBSTDCPP
			NAMES "libstdc++-6.dll" "libc++.dll"
			PATHS ${gcc_programs_dir} ${CMAKE_CXX_COMPILER_DIR}
		)
		if (LIBSTDCPP)
			#message(STATUS LIBSTDCPP="${LIBSTDCPP}")
			list(APPEND ADDITIONAL_DLLS ${LIBSTDCPP})
		endif()
		unset(LIBSTDCPP)
		find_library(LIBPTHREAD
			NAMES "winpthread-1.dll" "libwinpthread-1.dll" "pthreadGC2.dll"
			PATHS ${gcc_libraries_dir} ${CMAKE_CXX_COMPILER_DIR}
		)
		if(LIBPTHREAD)
			#message(STATUS LIBPTHREAD="${LIBPTHREAD}")
			list(APPEND ADDITIONAL_DLLS ${LIBPTHREAD})
		endif()

		set(CMAKE_FIND_LIBRARY_SUFFIXES ${OLD_CMAKE_FIND_LIBRARY_SUFFIXES})
		set(CMAKE_FIND_LIBRARY_PREFIXES ${OLD_CMAKE_FIND_LIBRARY_PREFIXES})
		unset(LIBPTHREAD)
		unset(gcc_install_dir)
		unset(gcc_programs_dir)
		unset(gcc_libraries_dir)
		unset(OLD_CMAKE_FIND_LIBRARY_SUFFIXES)
		unset(OLD_CMAKE_FIND_LIBRARY_PREFIXES)

		#message(STATUS ADDITIONAL_DLLS="${ADDITIONAL_DLLS}")
	endif()
	add_custom_command(TARGET SRB2SDL2 POST_BUILD
		COMMAND ${CMAKE_COMMAND} -E copy_if_different
			$<TARGET_RUNTIME_DLLS:SRB2SDL2>
			${ADDITIONAL_DLLS}

			$<TARGET_FILE_DIR:SRB2SDL2>
		COMMAND_EXPAND_LISTS
		COMMENT "Copying runtime DLLs"
	)
endif()

# Setup clang-tidy
if(SRB2_CONFIG_ENABLE_CLANG_TIDY_C)
	target_set_default_clang_tidy(SRB2SDL2 C "-*,clang-analyzer-*,-clang-analyzer-cplusplus-*")
endif()
if(SRB2_CONFIG_ENABLE_CLANG_TIDY_CXX)
	target_set_default_clang_tidy(SRB2SDL2 CXX "-*,clang-analyzer-*,modernize-*")
endif()