dhewm3/neo/CMakeLists.txt

cmake_minimum_required(VERSION 2.6...3.22 FATAL_ERROR)
project(dhewm3)

# TODO

# osx: place game .dylib's in the bundle (next to the binary)
# osx: -weak_framework ?

# maybe add these as options:
# TARGET_MONO
# SETUP
# SDK				-D_D3SDK

# don't add these as options, but document them?
# IDNET_HOST		-DIDNET_HOST=\\"%s\\"' % IDNET_HOST
# DEBUG_MEMORY		-DID_DEBUG_MEMORY', '-DID_REDIRECT_NEWDELETE
# LIBC_MALLOC		-DUSE_LIBC_MALLOC=0
# ID_NOLANADDRESS	-DID_NOLANADDRESS

# fallback for cmake versions without add_compile_options
if(NOT COMMAND add_compile_options)
	function(add_compile_options)
		foreach(arg ${ARGN})
			set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${arg}" PARENT_SCOPE)
			set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${arg}" PARENT_SCOPE)
		endforeach()
	endfunction()
endif()

option(LINUX_RELEASE_BINS "Set RPATH to \$ORIGIN/libs/ for Linux binary releases" OFF)

set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/sys/cmake")

if(LINUX_RELEASE_BINS)
	message(STATUS "Setting RPATH to \$ORIGIN/libs/ so you can put dependencies in there")
	set(CMAKE_SKIP_RPATH OFF CACHE BOOL "Skip RPATH" FORCE)
	set(CMAKE_INSTALL_RPATH_USE_LINK_PATH FALSE)
	set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
	set(CMAKE_INSTALL_RPATH "$ORIGIN/libs")
	set(ldflags "${ldflags} -Wl,-z,origin") # not sure this is even needed, but shouldn't hurt
else()
	set(CMAKE_SKIP_RPATH ON CACHE BOOL "Skip RPATH" FORCE)
endif()

set(DHEWM3BINARY "dhewm3")

include(CheckCXXCompilerFlag)
include(GNUInstallDirs OPTIONAL RESULT_VARIABLE GNUINSTALLDIRS)
include(TestBigEndian)

option(CORE			"Build the core" ON)
option(BASE			"Build the base game code" ON)
option(D3XP			"Build the d3xp game code" ON)
if(MSVC)
	option(TOOLS		"Build the tools game code (Visual Studio+SDL2/SDL3 only)" OFF)
endif()
option(DEDICATED	"Build the dedicated server" OFF)
option(ONATIVE		"Optimize for the host CPU" OFF)
option(SDL2			"Use SDL2 instead of SDL1.2" ON)
option(SDL3			"Use SDL3 instead of SDL2 or SDL1.2" OFF)
option(IMGUI		"Build with Dear ImGui integration - requires SDL2/SDL3 and C++11" ON)
option(REPRODUCIBLE_BUILD "Replace __DATE__ and __TIME__ by hardcoded values for reproducible builds" OFF)

option(HARDLINK_GAME "Compile gamecode into executable (no game DLLs)" OFF)

if(NOT MSVC) # GCC/clang or compatible, hopefully
	option(FORCE_COLORED_OUTPUT "Always produce ANSI-colored compiler warnings/errors (GCC/Clang only; esp. useful with ninja)." OFF)
	option(ASAN		"Enable GCC/Clang Adress Sanitizer (ASan)" OFF) # TODO: MSVC might also support this, somehow?
	option(UBSAN	"Enable GCC/Clang Undefined Behavior Sanitizer (UBSan), implies HARDLINK_GAME" OFF)

	if(UBSAN AND NOT HARDLINK_GAME)
		message(STATUS "UBSAN requires linking the gamecode into the executable, will enable HARDLINK_GAME")
		set(HARDLINK_GAME ON)
	endif()
endif()

if(NOT CMAKE_SYSTEM_PROCESSOR)
	message(FATAL_ERROR "No target CPU architecture set")
endif()

if(NOT CMAKE_SYSTEM_NAME)
	message(FATAL_ERROR "No target OS set")
endif()

# target cpu
set(cpu ${CMAKE_SYSTEM_PROCESSOR})

# Originally, ${CMAKE_SYSTEM_PROCESSOR} was supposed to contain the *target* CPU, according to CMake's documentation.
# As far as I can tell this has always been broken (always returns host CPU) at least on Windows
# (see e.g. https://cmake.org/pipermail/cmake-developers/2014-September/011405.html) and wasn't reliable on
# other systems either, for example on Linux with 32bit userland but 64bit kernel it returned the kernel CPU type
# (e.g. x86_64 instead of i686). Instead of fixing this, CMake eventually updated their documentation in 3.20,
# now it's officially the same as CMAKE_HOST_SYSTEM_PROCESSOR except when cross-compiling (where it's explicitly set)
# So we gotta figure out the actual target CPU type ourselves.. (why am I sticking to this garbage buildsystem?)
if(NOT (CMAKE_SYSTEM_PROCESSOR STREQUAL CMAKE_HOST_SYSTEM_PROCESSOR))
	# special case: cross-compiling, here CMAKE_SYSTEM_PROCESSOR should be correct, hopefully
	# (just leave cpu at ${CMAKE_SYSTEM_PROCESSOR})
elseif(MSVC)
	# because all this wasn't ugly enough, it turned out that, unlike standalone CMake, Visual Studio's
	# integrated CMake doesn't set CMAKE_GENERATOR_PLATFORM, so I gave up on guessing the CPU arch here
	# and moved the CPU detection to MSVC-specific code in neo/sys/platform.h
else() # not MSVC and not cross-compiling, assume GCC or clang (-compatible), seems to work for MinGW as well
	execute_process(COMMAND ${CMAKE_C_COMPILER} "-dumpmachine"
	                RESULT_VARIABLE cc_dumpmachine_res
	                OUTPUT_VARIABLE cc_dumpmachine_out)
	if(cc_dumpmachine_res EQUAL 0)
		string(STRIP ${cc_dumpmachine_out} cc_dumpmachine_out) # get rid of trailing newline
		message(STATUS "`${CMAKE_C_COMPILER} -dumpmachine` says: \"${cc_dumpmachine_out}\"")
		# gcc -dumpmachine and clang -dumpmachine seem to print something like "x86_64-linux-gnu" (gcc)
		# or "x64_64-pc-linux-gnu" (clang) or "i686-w64-mingw32" (32bit mingw-w64) i.e. starting with the CPU,
		# then "-" and then OS or whatever - so use everything up to first "-"
		string(REGEX MATCH "^[^-]+" cpu ${cc_dumpmachine_out})
		message(STATUS "  => CPU architecture extracted from that: \"${cpu}\"")
	else()
		message(WARNING "${CMAKE_C_COMPILER} -dumpmachine failed with error (code) ${cc_dumpmachine_res}")
		message(WARNING "will use the (sometimes incorrect) CMAKE_SYSTEM_PROCESSOR (${cpu}) to determine D3_ARCH")
	endif()
endif()

if(cpu STREQUAL "powerpc")
	set(cpu "ppc")
elseif(cpu STREQUAL "aarch64")
	# "arm64" is more obvious, and some operating systems (like macOS) use it instead of "aarch64"
	set(cpu "arm64")
elseif(cpu MATCHES "i.86")
	set(cpu "x86")
elseif(cpu MATCHES "[aA][mM][dD]64" OR cpu MATCHES "[xX]64")
	set(cpu "x86_64")
elseif(cpu MATCHES "[aA][rR][mM].*") # some kind of arm..
	# On 32bit Raspbian gcc -dumpmachine returns sth starting with "arm-",
	# while clang -dumpmachine says "arm6k-..." - try to unify that to "arm"
	if(CMAKE_SIZEOF_VOID_P EQUAL 8) # sizeof(void*) == 8 => must be arm64
		set(cpu "arm64")
	else() # should be 32bit arm then (probably "armv7l" "armv6k" or sth like that)
		set(cpu "arm")
	endif()
endif()

# target os
if(APPLE)
	set(os "macosx")
else()
	string(TOLOWER "${CMAKE_SYSTEM_NAME}" os)
endif()

add_definitions(-DD3_OSTYPE="${os}" -DD3_SIZEOFPTR=${CMAKE_SIZEOF_VOID_P})

if(MSVC)
	# for MSVC D3_ARCH is set in code (in neo/sys/platform.h)
	message(STATUS "Setting -DD3_SIZEOFPTR=${CMAKE_SIZEOF_VOID_P} -DD3_OSTYPE=\"${os}\" - NOT setting D3_ARCH, because we're targeting MSVC (VisualC++)")
	# make sure ${cpu} isn't (cant't be) used by CMake when building with MSVC
	unset(cpu)
else()
	add_definitions(-DD3_ARCH="${cpu}")
	message(STATUS "Setting -DD3_ARCH=\"${cpu}\" -DD3_SIZEOFPTR=${CMAKE_SIZEOF_VOID_P} -DD3_OSTYPE=\"${os}\" ")

	if(cpu MATCHES ".*64.*" AND NOT CMAKE_SIZEOF_VOID_P EQUAL 8)
		# tough luck if some CPU architecture has "64" in its name but uses 32bit pointers
		message(SEND_ERROR "CMake thinks sizeof(void*) == 4, but the target CPU ${cpu} looks like a 64bit CPU!")
		message(FATAL_ERROR "If you're building in a 32bit chroot on a 64bit host, switch to it with 'linux32 chroot' or at least call cmake with linux32 (or your OSs equivalent)!")
	endif()
endif()

# build type
if(NOT CMAKE_BUILD_TYPE)
	set(CMAKE_BUILD_TYPE "RelWithDebInfo")
endif()

# precompiled libraries from the dhewm3-libs repo
if(DHEWM3LIBS)
	if(CMAKE_CROSSCOMPILING)
		set(CMAKE_FIND_ROOT_PATH ${DHEWM3LIBS})
	else()
		set(ENV{CMAKE_PREFIX_PATH} ${DHEWM3LIBS})
	endif()

	# these are too stupid, give them a hint
	set(ENV{OPENALDIR} ${DHEWM3LIBS})
	set(ENV{SDLDIR} ${DHEWM3LIBS})
	set(ENV{SDL2DIR} ${DHEWM3LIBS})
endif()

if(CMAKE_MAJOR_VERSION LESS 3 OR ( CMAKE_MAJOR_VERSION EQUAL 3 AND CMAKE_MINOR_VERSION LESS 8 ))
	# cmake < 3.8 doesn't support source_group(TREE ...) so replace it with a dummy
	# (it's only cosmetical anyway, to make source files show up properly in Visual Studio)
	function(source_group)
	endfunction()
	message(STATUS "Using CMake < 3.8, doesn't support source_group(TREE ...), replacing it with a dummy")
	message(STATUS "  (this is only relevants for IDEs, doesn't matter for just compiling dhewm3)")
#else()
#	message(STATUS "Using CMake >= 3.8, supports source_group(TREE ...)")
endif()

# libs
find_package(OpenAL REQUIRED)
include_directories(${OPENAL_INCLUDE_DIR})

if (SDL3)
	if(SDL2)
		message(WARNING "You enabled both SDL2 and SDL3. Only one can be used at a time, disabling SDL2")
		set(SDL2 OFF CACHE BOOL "Use SDL2 (make sure SDL3 is disabled!)" FORCE)
	endif()
	# 1. Look for a SDL3 package,
	# 2. look for the SDL3-shared component, and
	# 3. fail if the shared component cannot be found.
	find_package(SDL3 REQUIRED CONFIG REQUIRED COMPONENTS SDL3-shared)
	# TODO: include dirs?
	set(SDLx_LIBRARY SDL3::SDL3)
	add_definitions(-DD3_SDL3=1)
elseif (SDL2)
	# skip SDL2main
	if(APPLE OR WIN32)
		set(SDL2_BUILDING_LIBRARY TRUE)
	endif()
	find_package(SDL2 REQUIRED)
	include_directories(${SDL2_INCLUDE_DIR})
	set(SDLx_LIBRARY ${SDL2_LIBRARY})
else()
	# skip SDLmain
	if(APPLE OR WIN32)
		set(SDL_BUILDING_LIBRARY TRUE)
	endif()
	find_package(SDL REQUIRED)
	include_directories(${SDL_INCLUDE_DIR})
	set(SDLx_LIBRARY ${SDL_LIBRARY})
endif()

if(REPRODUCIBLE_BUILD)
	# don't use __DATE__ and __TIME__ macros so builds are reproducible
	add_definitions(-DID_REPRODUCIBLE_BUILD)
endif()

if(IMGUI)
	if(SDL2 OR SDL3)
		# we need C++11 for ImGui
		set (CMAKE_CXX_STANDARD 11)
		message(STATUS "Dear ImGui integration enabled")
	else()
		message(WARNING "Disabling IMGUI because SDL1.2 is used - it needs SDL2 or SDL3!")
		set(IMGUI OFF)
		add_definitions(-DIMGUI_DISABLE)
	endif()
else()
	message(STATUS "Dear ImGui integration disabled")
	add_definitions(-DIMGUI_DISABLE)
endif()

find_package(CURL QUIET)
if(CURL_FOUND)
	set(ID_ENABLE_CURL ON)
	include_directories(${CURL_INCLUDE_DIR})
	message(STATUS "libcurl found and enabled")
else()
	message(WARNING "libcurl not found, server downloads won't be available (apart from that dhewm3 will work)")
	set(ID_ENABLE_CURL OFF)
	set(CURL_LIBRARY "")
endif()

set(D3_COMPILER_IS_CLANG FALSE)
set(D3_COMPILER_IS_GCC_OR_CLANG FALSE)

if(MSVC)
	# This is required for tools on windows.
	find_package(MFC)
	
	if(TOOLS AND NOT MFC_FOUND)
		message(SEND_ERROR "MFC ('Microsoft Foundation Classes for C++') couldn't be found, but is needed for TOOLS!")
		message(FATAL_ERROR "If you're using VS2013, you'll also need the 'Multibyte MFC Library for Visual Studio 2013': https://www.microsoft.com/en-us/download/details.aspx?id=40770 (VS2015 and 2017 include that in the default MFC package)")
	endif()

else() # not MSVC

if(NOT WIN32)
	# libbacktrace support - TODO: might work with MinGW? we don't have a crash handler for win32 though..
	include(CheckCSourceCompiles)
	set(CMAKE_REQUIRED_LIBRARIES backtrace)
	check_c_source_compiles( "#include <backtrace.h>
	int main() { backtrace_create_state(NULL, 0, NULL, NULL); return 0; }" HAVE_LIBBACKTRACE )
	unset(CMAKE_REQUIRED_LIBRARIES)

	if(HAVE_LIBBACKTRACE)
		set(sys_libs ${sys_libs} backtrace)
		add_definitions(-DD3_HAVE_LIBBACKTRACE)
		message(STATUS "Using libbacktrace")
	else()
		message(WARNING "libbacktrace wasn't found. It's not required but recommended, because it provides useful backtraces if dhewm3 crashes")
	endif()
	
	# check if our SDL2 supports X11 in SDL_syswm so we can use it for DPI scaling ImGui
	if(SDL2) # TODO: SDL3? Or just kick this feature?
		set(CMAKE_REQUIRED_LIBRARIES SDL2)
		check_c_source_compiles( "#include <SDL_syswm.h>
		int main() { SDL_SysWMinfo wmInfo = {}; wmInfo.info.x11.display = NULL; return 0; }" HAVE_SDL_X11)
		unset(CMAKE_REQUIRED_LIBRARIES)
		
		if(HAVE_SDL_X11)
			message(STATUS "This SDL2 has X11 support")
			add_definitions(-DD3_SDL_X11)
		endif()
	endif()
endif() # NOT WIN32

# check if this is some kind of clang (Clang, AppleClang, whatever)
# (convert compiler ID to lowercase so we match Clang, clang, AppleClang etc, regardless of case)
string(TOLOWER ${CMAKE_CXX_COMPILER_ID} compiler_id_lower)
if(compiler_id_lower MATCHES ".*clang.*")
	message(STATUS "Compiler \"${CMAKE_CXX_COMPILER_ID}\" detected as some kind of clang")
	set(D3_COMPILER_IS_CLANG TRUE)
	set(D3_COMPILER_IS_GCC_OR_CLANG TRUE)
elseif(CMAKE_COMPILER_IS_GNUCC)
	set(D3_COMPILER_IS_GCC_OR_CLANG TRUE)
endif()
unset(compiler_id_lower)

endif() # not MSVC

TEST_BIG_ENDIAN(is_big_endian)
if(is_big_endian)
	message(STATUS "Detected Big Endian architecture, setting -DD3_IS_BIG_ENDIAN=1")
	add_definitions(-DD3_IS_BIG_ENDIAN=1)
else()
	message(STATUS "Detected Little Endian architecture, setting -DD3_IS_BIG_ENDIAN=0")
	add_definitions(-DD3_IS_BIG_ENDIAN=0)
endif()

# compiler specific flags
if(D3_COMPILER_IS_GCC_OR_CLANG)
	add_compile_options(-pipe)
	add_compile_options(-Wall)

	if(NOT CMAKE_CROSSCOMPILING AND ONATIVE)
		add_compile_options(-march=native)
	elseif(NOT APPLE AND cpu STREQUAL "x86")
		add_compile_options(-march=pentium3)
	endif()

	if(FORCE_COLORED_OUTPUT)
		if(CMAKE_COMPILER_IS_GNUCC)
		   add_compile_options (-fdiagnostics-color=always)
		elseif (D3_COMPILER_IS_CLANG)
		   add_compile_options (-fcolor-diagnostics)
		endif ()
	endif ()

	set(CMAKE_C_FLAGS_DEBUG "-g -ggdb -D_DEBUG -O0")
	set(CMAKE_C_FLAGS_DEBUGALL "-g -ggdb -D_DEBUG")
	set(CMAKE_C_FLAGS_PROFILE "-g -ggdb -D_DEBUG -O1 -fno-omit-frame-pointer")
	set(CMAKE_C_FLAGS_RELEASE "-O2 -fno-math-errno -fno-trapping-math  -ffinite-math-only -fomit-frame-pointer")
	set(CMAKE_C_FLAGS_RELWITHDEBINFO "-g -ggdb -O2 -fno-math-errno -fno-trapping-math  -ffinite-math-only -fno-omit-frame-pointer")
	set(CMAKE_C_FLAGS_MINSIZEREL "-Os -fno-math-errno -fno-trapping-math  -ffinite-math-only -fomit-frame-pointer")

	set(CMAKE_CXX_FLAGS_DEBUGALL ${CMAKE_C_FLAGS_DEBUGALL})
	set(CMAKE_CXX_FLAGS_PROFILE ${CMAKE_C_FLAGS_PROFILE})

	add_compile_options(-fno-strict-aliasing)
	# dear idiot compilers, don't fuck up math code with useless FMA "optimizations"
	# (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100839)
	CHECK_CXX_COMPILER_FLAG("-ffp-contract=off" cxx_has_fp-contract)
	if(cxx_has_fp-contract)
		add_compile_options(-ffp-contract=off)
	endif()
	
	if(ASAN)
		# if this doesn't work, ASan might not be available on your platform, don't set ASAN then..
		add_compile_options(-fsanitize=address)
		set(sys_libs ${sys_libs} -fsanitize=address)
	endif()
	if(UBSAN)
		# if this doesn't work, UBSan might not be available on your platform, don't set UBSAN then..
		add_compile_options(-fsanitize=undefined)
		set(sys_libs ${sys_libs} -fsanitize=undefined)
	endif()

	if(NOT AROS)
		CHECK_CXX_COMPILER_FLAG("-fvisibility=hidden" cxx_has_fvisibility)
		if(NOT cxx_has_fvisibility)
			message(FATAL_ERROR "Compiler does not support -fvisibility")
		endif()
		add_compile_options(-fvisibility=hidden)
	endif()

	# TODO fix these warnings
	add_compile_options(-Wno-sign-compare)
	add_compile_options(-Wno-switch)

	CHECK_CXX_COMPILER_FLAG("-Woverloaded-virtual" cxx_has_Woverload_virtual)
	if(cxx_has_Woverload_virtual)
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Woverloaded-virtual")
	endif()
	
	# shut up about using memcpy() on classes, in the cases doom3 uses it it seems to be fine
	CHECK_CXX_COMPILER_FLAG("-Wno-class-memaccess" cxx_has_Wno-class-memaccess)
	if(cxx_has_Wno-class-memaccess)
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-class-memaccess")
	endif()

	# ignore warnings about variables named "requires" for now (in C++20 it's a keyword,
	#  but currently we don't even use C++11 features)
	CHECK_CXX_COMPILER_FLAG("-Wno-c++20-compat" cxx_has_Wno-cpp20-compat)
	if(cxx_has_Wno-cpp20-compat)
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-c++20-compat")
	endif()

	if(AROS)
		set(CMAKE_SHARED_LIBRARY_SUFFIX ".aros-${cpu}")
		add_definitions(-DIOAPI_NO_64)
	elseif(APPLE)
		add_definitions(-DMACOS_X=1)

		if(cpu STREQUAL "x86_64")
			add_compile_options(-arch x86_64 -mmacosx-version-min=10.7)
			set(ldflags "${ldflags} -arch x86_64 -mmacosx-version-min=10.7")
		elseif(cpu STREQUAL "arm64")
			add_compile_options(-arch arm64 -mmacosx-version-min=10.7)
			set(ldflags "${ldflags} -arch arm64 -mmacosx-version-min=10.7")
		elseif(cpu STREQUAL "x86")
			CHECK_CXX_COMPILER_FLAG("-arch i386" cxx_has_arch_i386)
			if(cxx_has_arch_i386)
				add_compile_options(-arch i386)
				set(ldflags "${ldflags} -arch i386")
			endif()

			add_compile_options(-mmacosx-version-min=10.4)
			set(ldflags "${ldflags} -mmacosx-version-min=10.4")
		elseif(cpu STREQUAL "ppc")
			CHECK_CXX_COMPILER_FLAG("-arch ppc" cxx_has_arch_ppc)
			if(cxx_has_arch_ppc)
				add_compile_options(-arch ppc -mone-byte-bool)
				set(ldflags "${ldflags} -arch ppc -mone-byte-bool")
			endif()

			add_compile_options(-mmacosx-version-min=10.4)
			set(ldflags "${ldflags} -mmacosx-version-min=10.4")
		else()
			message(FATAL_ERROR "Unsupported CPU architecture for OSX")
		endif()

		set(sys_libs ${sys_libs} "-framework Carbon -framework Cocoa -framework IOKit")
	elseif(WIN32)
		# use 8MB stack instead of 1MB, so big models don't overflow it with _alloca()
		set(ldflags "${ldflags} -static-libgcc -static-libstdc++ -Wl,--stack,8388608")
	elseif(os STREQUAL "linux")
		set(sys_libs ${sys_libs} dl)
	elseif(os STREQUAL "freebsd")
		find_library(EXECINFO_LIBRARIES execinfo /usr/lib /usr/local/lib)
		set(sys_libs ${sys_libs} ${EXECINFO_LIBRARIES})
	endif()
elseif(MSVC)
	add_compile_options(/MP) # parallel build (use all cores, or as many as configured in VS)
	
	add_compile_options(/W3) # TODO: was /W4, caused trouble with VS2019 (and/or its integrated CMake? or only HarrieVG's setup?)
	add_compile_options(/we4840) # treat as error when passing a class to a vararg-function (probably printf-like)
	# treat several kinds of truncating int<->pointer conversions as errors (for more 64bit-safety)
	add_compile_options(/we4306 /we4311 /we4312 /we4302)
	# ignore the following warnings:
	add_compile_options(/wd4100) # unreferenced formal parameter
	add_compile_options(/wd4127) # conditional expression is constant
	add_compile_options(/wd4244) # possible loss of data
	add_compile_options(/wd4245) # signed/unsigned mismatch
	add_compile_options(/wd4267) # possible loss of data
	add_compile_options(/wd4714) # 'function' marked as __forceinline not inlined
	add_compile_options(/wd4996) # 'function': was declared deprecated
	add_compile_options(/wd4068) # unknown pragma
	add_compile_options(/wd4458) # declaration of 'variable' hides class member
	add_definitions(-D_ALLOW_KEYWORD_MACROS) # because of the "#define private public" and "#define protected public" in TypeInfo.cpp
	set(CMAKE_C_FLAGS_DEBUG "-D_DEBUG /Od /Zi /MDd")
	set(CMAKE_C_FLAGS_RELEASE "/Ox /Oy /MD")
	set(CMAKE_C_FLAGS_RELWITHDEBINFO "/Ox /Oy /Zi /MD")
	set(CMAKE_C_FLAGS_MINSIZEREL "/Ox /Oy /Os /MD")
	# use 8MB stack instead of 1MB, so big models don't overflow it with _alloca()
	set(ldflags "${ldflags} /STACK:8388608")
else()
	message(FATAL_ERROR "Unsupported compiler")
endif()

set(CMAKE_CXX_FLAGS_DEBUG ${CMAKE_C_FLAGS_DEBUG})
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO ${CMAKE_C_FLAGS_RELWITHDEBINFO})
# disable assertions in release builds
set(CMAKE_CXX_FLAGS_RELEASE "-DNDEBUG ${CMAKE_C_FLAGS_RELEASE}")
set(CMAKE_CXX_FLAGS_MINSIZEREL "-DNDEBUG ${CMAKE_C_FLAGS_MINSIZEREL}")

# mingw and msvc
if(WIN32)
	add_definitions(-DWINVER=0x0501)
	add_definitions(-D_WIN32_WINNT=0x0501)

	set(sys_libs ${sys_libs}
		winmm
		iphlpapi
		wsock32
		ole32
	)
endif()

# optimize this source file even in debug builds, to make speed (esp. loading times) more bearable
# used for libs integrated here like stb_* and miniz(ip)
if(CMAKE_MAJOR_VERSION LESS 3 OR ( CMAKE_MAJOR_VERSION EQUAL 3 AND CMAKE_MINOR_VERSION LESS 11 ))
	function(always_optimize_sourcefile srcfilename)
		if(MSVC)
			set_source_files_properties(${srcfilename} PROPERTIES COMPILE_FLAGS "/Ox")
		else()
			set_source_files_properties(${srcfilename} PROPERTIES COMPILE_FLAGS "-O2")
		endif()
	endfunction()
else()
	function(always_optimize_sourcefile srcfilename)
		if(MSVC)
			set_source_files_properties(${srcfilename} PROPERTIES COMPILE_OPTIONS "/Ox")
		else()
			set_source_files_properties(${srcfilename} PROPERTIES COMPILE_OPTIONS "-O2")
		endif()
	endfunction()
endif()

# fallback for cmake versions without GNUInstallDirs
if(GNUINSTALLDIRS MATCHES "NOTFOUND")
	set(CMAKE_INSTALL_BINDIR		"bin"
		CACHE PATH "user executables (bin)")
	set(CMAKE_INSTALL_LIBDIR		"lib${LIB_SUFFIX}"
		CACHE PATH "object code libraries (lib${LIB_SUFFIX})")
	set(CMAKE_INSTALL_DATAROOTDIR	"share"
		CACHE PATH "read-only architecture-independent data root (share)")
	set(CMAKE_INSTALL_DATADIR		"${CMAKE_INSTALL_DATAROOTDIR}"
		CACHE PATH "read-only architecture-independent data (DATAROOTDIR)")

	mark_as_advanced(CMAKE_INSTALL_BINDIR CMAKE_INSTALL_LIBDIR CMAKE_INSTALL_DATAROOTDIR CMAKE_INSTALL_DATADIR)
	foreach(dir BINDIR LIBDIR DATAROOTDIR DATADIR)
		if(NOT IS_ABSOLUTE ${CMAKE_INSTALL_${dir}})
			set(CMAKE_INSTALL_FULL_${dir} "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_${dir}}")
		else()
			set(CMAKE_INSTALL_FULL_${dir} "${CMAKE_INSTALL_${dir}}")
		endif()
	endforeach()
endif()

set(bindir		"${CMAKE_INSTALL_FULL_BINDIR}")
set(libdir		"${CMAKE_INSTALL_FULL_LIBDIR}/dhewm3")
set(datadir		"${CMAKE_INSTALL_FULL_DATADIR}/dhewm3")

configure_file(
	"${CMAKE_SOURCE_DIR}/config.h.in"
	"${CMAKE_BINARY_DIR}/config.h"
)

if(NOT MSVC)
message(STATUS "Building ${CMAKE_BUILD_TYPE} for ${os}-${cpu}")
endif()

if(NOT APPLE AND NOT WIN32)
	message(STATUS "The install target will use the following directories:")
	message(STATUS "  Binary directory:  ${bindir}")
	message(STATUS "  Library directory: ${libdir}")
	message(STATUS "  Data directory:    ${datadir}")
endif()

set(src_renderer
	renderer/Cinematic.cpp
	renderer/GuiModel.cpp
	renderer/Image_files.cpp
	renderer/Image_init.cpp
	renderer/Image_load.cpp
	renderer/Image_process.cpp
	renderer/Image_program.cpp
	renderer/Interaction.cpp
	renderer/Material.cpp
	renderer/MegaTexture.cpp
	renderer/Model.cpp
	renderer/ModelDecal.cpp
	renderer/ModelManager.cpp
	renderer/ModelOverlay.cpp
	renderer/Model_beam.cpp
	renderer/Model_ase.cpp
	renderer/Model_liquid.cpp
	renderer/Model_lwo.cpp
	renderer/Model_ma.cpp
	renderer/Model_md3.cpp
	renderer/Model_md5.cpp
	renderer/Model_prt.cpp
	renderer/Model_sprite.cpp
	renderer/RenderEntity.cpp
	renderer/RenderSystem.cpp
	renderer/RenderSystem_init.cpp
	renderer/RenderWorld.cpp
	renderer/RenderWorld_demo.cpp
	renderer/RenderWorld_load.cpp
	renderer/RenderWorld_portals.cpp
	renderer/VertexCache.cpp
	renderer/draw_arb2.cpp
	renderer/draw_common.cpp
	renderer/tr_backend.cpp
	renderer/tr_deform.cpp
	renderer/tr_font.cpp
	renderer/tr_guisurf.cpp
	renderer/tr_light.cpp
	renderer/tr_lightrun.cpp
	renderer/tr_main.cpp
	renderer/tr_orderIndexes.cpp
	renderer/tr_polytope.cpp
	renderer/tr_render.cpp
	renderer/tr_rendertools.cpp
	renderer/tr_shadowbounds.cpp
	renderer/tr_stencilshadow.cpp
	renderer/tr_subview.cpp
	renderer/tr_trace.cpp
	renderer/tr_trisurf.cpp
	renderer/tr_turboshadow.cpp

	renderer/stblib_impls.c
)

always_optimize_sourcefile(renderer/stblib_impls.c)

# I'm a bit sloppy with headers and just glob them in..
# they're only handled in CMake at all so they turn up in Visual Studio solutions..

# globs all the headers from ${PATHPREFIX}/ and adds them to ${SRCLIST}
function(add_globbed_headers SRCLIST PATHPREFIX)
	file(GLOB_RECURSE tmp_hdrs RELATIVE "${CMAKE_SOURCE_DIR}" "${PATHPREFIX}/*.h")
	set(${SRCLIST} ${tmp_hdrs} ${${SRCLIST}} PARENT_SCOPE)
endfunction()

add_globbed_headers(src_renderer "renderer")

set(src_framework
	framework/CVarSystem.cpp
	framework/CmdSystem.cpp
	framework/Common.cpp
	framework/Compressor.cpp
	framework/Console.cpp
	framework/DemoFile.cpp
	framework/DeclAF.cpp
	framework/DeclEntityDef.cpp
	framework/DeclFX.cpp
	framework/DeclManager.cpp
	framework/DeclParticle.cpp
	framework/DeclPDA.cpp
	framework/DeclSkin.cpp
	framework/DeclTable.cpp
	framework/Dhewm3SettingsMenu.cpp
	framework/EditField.cpp
	framework/EventLoop.cpp
	framework/File.cpp
	framework/FileSystem.cpp
	framework/KeyInput.cpp
	framework/UsercmdGen.cpp
	framework/Session_menu.cpp
	framework/Session.cpp
	framework/async/AsyncClient.cpp
	framework/async/AsyncNetwork.cpp
	framework/async/AsyncServer.cpp
	framework/async/MsgChannel.cpp
	framework/async/NetworkSystem.cpp
	framework/async/ServerScan.cpp
	framework/miniz/miniz.c
	framework/minizip/ioapi.c
	framework/minizip/unzip.cpp
)

always_optimize_sourcefile(framework/miniz/miniz.c)
always_optimize_sourcefile(framework/minizip/ioapi.c)
always_optimize_sourcefile(framework/minizip/unzip.cpp)

add_globbed_headers(src_framework "framework")

set(src_cm
	cm/CollisionModel_contacts.cpp
	cm/CollisionModel_contents.cpp
	cm/CollisionModel_debug.cpp
	cm/CollisionModel_files.cpp
	cm/CollisionModel_load.cpp
	cm/CollisionModel_rotate.cpp
	cm/CollisionModel_trace.cpp
	cm/CollisionModel_translate.cpp
)

add_globbed_headers(src_cm "cm")

set(src_dmap
	tools/compilers/dmap/dmap.cpp
	tools/compilers/dmap/facebsp.cpp
	tools/compilers/dmap/gldraw.cpp
	tools/compilers/dmap/glfile.cpp
	tools/compilers/dmap/leakfile.cpp
	tools/compilers/dmap/map.cpp
	tools/compilers/dmap/optimize.cpp
	tools/compilers/dmap/output.cpp
	tools/compilers/dmap/portals.cpp
	tools/compilers/dmap/shadowopt3.cpp
	tools/compilers/dmap/tritjunction.cpp
	tools/compilers/dmap/tritools.cpp
	tools/compilers/dmap/ubrush.cpp
	tools/compilers/dmap/usurface.cpp
)

add_globbed_headers(src_dmap "tools/compilers/dmap")

set(src_aas
	tools/compilers/aas/AASBuild.cpp
	tools/compilers/aas/AASBuild_file.cpp
	tools/compilers/aas/AASBuild_gravity.cpp
	tools/compilers/aas/AASBuild_ledge.cpp
	tools/compilers/aas/AASBuild_merge.cpp
	tools/compilers/aas/AASCluster.cpp
	tools/compilers/aas/AASFile.cpp
	tools/compilers/aas/AASFile_optimize.cpp
	tools/compilers/aas/AASFile_sample.cpp
	tools/compilers/aas/AASReach.cpp
	tools/compilers/aas/AASFileManager.cpp
	tools/compilers/aas/Brush.cpp
	tools/compilers/aas/BrushBSP.cpp
)

add_globbed_headers(src_aas "tools/compilers/aas")

set(src_roq
	tools/compilers/roqvq/NSBitmapImageRep.cpp
	tools/compilers/roqvq/codec.cpp
	tools/compilers/roqvq/roq.cpp
	tools/compilers/roqvq/roqParam.cpp
)

add_globbed_headers(src_roq "tools/compilers/roqvq")

set(src_renderbump
	tools/compilers/renderbump/renderbump.cpp
)

add_globbed_headers(src_renderbump "tools/compilers/renderbump")

set(src_snd
	sound/snd_cache.cpp
	sound/snd_decoder.cpp
	sound/snd_efxfile.cpp
	sound/snd_emitter.cpp
	sound/snd_shader.cpp
	sound/snd_system.cpp
	sound/snd_wavefile.cpp
	sound/snd_world.cpp

	sound/stbvorbis_impl.c
)

always_optimize_sourcefile(sound/stbvorbis_impl.c)

add_globbed_headers(src_snd "sound")

set(src_ui
	ui/BindWindow.cpp
	ui/ChoiceWindow.cpp
	ui/DeviceContext.cpp
	ui/EditWindow.cpp
	ui/FieldWindow.cpp
	ui/GameBearShootWindow.cpp
	ui/GameBustOutWindow.cpp
	ui/GameSSDWindow.cpp
	ui/GuiScript.cpp
	ui/ListGUI.cpp
	ui/ListWindow.cpp
	ui/MarkerWindow.cpp
	ui/RegExp.cpp
	ui/RenderWindow.cpp
	ui/SimpleWindow.cpp
	ui/SliderWindow.cpp
	ui/UserInterface.cpp
	ui/Window.cpp
	ui/Winvar.cpp
)

add_globbed_headers(src_ui "ui")

set(src_idlib
	idlib/bv/Bounds.cpp
	idlib/bv/Frustum.cpp
	idlib/bv/Sphere.cpp
	idlib/bv/Box.cpp
	idlib/geometry/DrawVert.cpp
	idlib/geometry/Winding2D.cpp
	idlib/geometry/Surface_SweptSpline.cpp
	idlib/geometry/Winding.cpp
	idlib/geometry/Surface.cpp
	idlib/geometry/Surface_Patch.cpp
	idlib/geometry/TraceModel.cpp
	idlib/geometry/JointTransform.cpp
	idlib/hashing/CRC32.cpp
	idlib/hashing/MD4.cpp
	idlib/hashing/MD5.cpp
	idlib/math/Angles.cpp
	idlib/math/Lcp.cpp
	idlib/math/Math.cpp
	idlib/math/Matrix.cpp
	idlib/math/Ode.cpp
	idlib/math/Plane.cpp
	idlib/math/Pluecker.cpp
	idlib/math/Polynomial.cpp
	idlib/math/Quat.cpp
	idlib/math/Rotation.cpp
	idlib/math/Simd.cpp
	idlib/math/Simd_Generic.cpp
	idlib/math/Simd_AltiVec.cpp
	idlib/math/Simd_MMX.cpp
	idlib/math/Simd_3DNow.cpp
	idlib/math/Simd_SSE.cpp
	idlib/math/Simd_SSE2.cpp
	idlib/math/Simd_SSE3.cpp
	idlib/math/Vector.cpp
	idlib/BitMsg.cpp
	idlib/LangDict.cpp
	idlib/Lexer.cpp
	idlib/Lib.cpp
	idlib/containers/HashIndex.cpp
	idlib/Dict.cpp
	idlib/Str.cpp
	idlib/Parser.cpp
	idlib/MapFile.cpp
	idlib/CmdArgs.cpp
	idlib/Token.cpp
	idlib/Base64.cpp
	idlib/Timer.cpp
	idlib/Heap.cpp
)

add_globbed_headers(src_idlib "idlib")

if(IMGUI)

	if(SDL3)
		set(src_imgui libs/imgui/backends/imgui_impl_sdl3.cpp)
	else()
		set(src_imgui libs/imgui/backends/imgui_impl_sdl2.cpp)
	endif()

set(src_imgui ${src_imgui}
	libs/imgui/backends/imgui_impl_opengl2.cpp
	
	libs/imgui/imgui.h
	libs/imgui/imgui.cpp
	libs/imgui/imgui_draw.cpp
	libs/imgui/imgui_tables.cpp
	libs/imgui/imgui_widgets.cpp
	
	libs/imgui/imgui_demo.cpp
	
	sys/sys_imgui.h
	sys/sys_imgui.cpp
	sys/imgui_savestyle.cpp
)
else()
set(src_imgui sys/sys_imgui.h)
endif()


set(src_game
	game/AF.cpp
	game/AFEntity.cpp
	game/Actor.cpp
	game/Camera.cpp
	game/Entity.cpp
	game/BrittleFracture.cpp
	game/Fx.cpp
	game/GameEdit.cpp
	game/Game_local.cpp
	game/Game_network.cpp
	game/Item.cpp
	game/IK.cpp
	game/Light.cpp
	game/Misc.cpp
	game/Mover.cpp
	game/Moveable.cpp
	game/MultiplayerGame.cpp
	game/Player.cpp
	game/PlayerIcon.cpp
	game/PlayerView.cpp
	game/Projectile.cpp
	game/Pvs.cpp
	game/SecurityCamera.cpp
	game/SmokeParticles.cpp
	game/Sound.cpp
	game/Target.cpp
	game/Trigger.cpp
	game/Weapon.cpp
	game/WorldSpawn.cpp
	game/ai/AAS.cpp
	game/ai/AAS_debug.cpp
	game/ai/AAS_pathing.cpp
	game/ai/AAS_routing.cpp
	game/ai/AI.cpp
	game/ai/AI_events.cpp
	game/ai/AI_pathing.cpp
	game/ai/AI_Vagary.cpp
	game/gamesys/DebugGraph.cpp
	game/gamesys/Class.cpp
	game/gamesys/Event.cpp
	game/gamesys/SaveGame.cpp
	game/gamesys/SysCmds.cpp
	game/gamesys/SysCvar.cpp
	game/gamesys/TypeInfo.cpp
	game/anim/Anim.cpp
	game/anim/Anim_Blend.cpp
	game/anim/Anim_Import.cpp
	game/anim/Anim_Testmodel.cpp
	game/script/Script_Compiler.cpp
	game/script/Script_Interpreter.cpp
	game/script/Script_Program.cpp
	game/script/Script_Thread.cpp
	game/physics/Clip.cpp
	game/physics/Force.cpp
	game/physics/Force_Constant.cpp
	game/physics/Force_Drag.cpp
	game/physics/Force_Field.cpp
	game/physics/Force_Spring.cpp
	game/physics/Physics.cpp
	game/physics/Physics_AF.cpp
	game/physics/Physics_Actor.cpp
	game/physics/Physics_Base.cpp
	game/physics/Physics_Monster.cpp
	game/physics/Physics_Parametric.cpp
	game/physics/Physics_Player.cpp
	game/physics/Physics_RigidBody.cpp
	game/physics/Physics_Static.cpp
	game/physics/Physics_StaticMulti.cpp
	game/physics/Push.cpp
)

add_globbed_headers(src_game "game")

set(src_d3xp
	d3xp/AF.cpp
	d3xp/AFEntity.cpp
	d3xp/Actor.cpp
	d3xp/Camera.cpp
	d3xp/Entity.cpp
	d3xp/BrittleFracture.cpp
	d3xp/Fx.cpp
	d3xp/GameEdit.cpp
	d3xp/Game_local.cpp
	d3xp/Game_network.cpp
	d3xp/Item.cpp
	d3xp/IK.cpp
	d3xp/Light.cpp
	d3xp/Misc.cpp
	d3xp/Mover.cpp
	d3xp/Moveable.cpp
	d3xp/MultiplayerGame.cpp
	d3xp/Player.cpp
	d3xp/PlayerIcon.cpp
	d3xp/PlayerView.cpp
	d3xp/Projectile.cpp
	d3xp/Pvs.cpp
	d3xp/SecurityCamera.cpp
	d3xp/SmokeParticles.cpp
	d3xp/Sound.cpp
	d3xp/Target.cpp
	d3xp/Trigger.cpp
	d3xp/Weapon.cpp
	d3xp/WorldSpawn.cpp
	d3xp/ai/AAS.cpp
	d3xp/ai/AAS_debug.cpp
	d3xp/ai/AAS_pathing.cpp
	d3xp/ai/AAS_routing.cpp
	d3xp/ai/AI.cpp
	d3xp/ai/AI_events.cpp
	d3xp/ai/AI_pathing.cpp
	d3xp/ai/AI_Vagary.cpp
	d3xp/gamesys/DebugGraph.cpp
	d3xp/gamesys/Class.cpp
	d3xp/gamesys/Event.cpp
	d3xp/gamesys/SaveGame.cpp
	d3xp/gamesys/SysCmds.cpp
	d3xp/gamesys/SysCvar.cpp
	d3xp/gamesys/TypeInfo.cpp
	d3xp/anim/Anim.cpp
	d3xp/anim/Anim_Blend.cpp
	d3xp/anim/Anim_Import.cpp
	d3xp/anim/Anim_Testmodel.cpp
	d3xp/script/Script_Compiler.cpp
	d3xp/script/Script_Interpreter.cpp
	d3xp/script/Script_Program.cpp
	d3xp/script/Script_Thread.cpp
	d3xp/physics/Clip.cpp
	d3xp/physics/Force.cpp
	d3xp/physics/Force_Constant.cpp
	d3xp/physics/Force_Drag.cpp
	d3xp/physics/Force_Field.cpp
	d3xp/physics/Force_Spring.cpp
	d3xp/physics/Physics.cpp
	d3xp/physics/Physics_AF.cpp
	d3xp/physics/Physics_Actor.cpp
	d3xp/physics/Physics_Base.cpp
	d3xp/physics/Physics_Monster.cpp
	d3xp/physics/Physics_Parametric.cpp
	d3xp/physics/Physics_Player.cpp
	d3xp/physics/Physics_RigidBody.cpp
	d3xp/physics/Physics_Static.cpp
	d3xp/physics/Physics_StaticMulti.cpp
	d3xp/physics/Push.cpp
	d3xp/Grabber.cpp
	d3xp/physics/Force_Grab.cpp
)

add_globbed_headers(src_d3xp "d3xp")

set(src_debuggerServer
	tools/debugger/DebuggerBreakpoint.h
	tools/debugger/DebuggerBreakpoint.cpp
	tools/debugger/DebuggerServer.h
	tools/debugger/DebuggerServer.cpp
	tools/debugger/DebuggerScript.h
	tools/debugger/DebuggerScript.cpp
	tools/debugger/DebuggerMessages.h
	tools/debugger/debugger.cpp
)

set(src_core
	${src_renderer}
	${src_framework}
	${src_cm}
	${src_dmap}
	${src_aas}
	${src_roq}
	${src_renderbump}
	${src_snd}
	${src_ui}
	${src_tools}
)

set(src_stub_openal		sys/stub/openal_stub.cpp)
set(src_stub_gl			sys/stub/stub_gl.cpp)


set(src_tools
	tools/guied/GEWindowWrapper_stub.cpp
)

# TODO: add_globbed_headers(src_tools "tools/guied")

# Begin normal tools code
if (TOOLS AND MFC_FOUND AND MSVC)
	set(ALLOWRESOURCES ON)
	# Common files.
	file(GLOB src_comafx "tools/comafx/*.cpp")
	add_globbed_headers(src_comafx "tools/comafx")
	file(GLOB_RECURSE src_tools_common "tools/common/*.cpp")
	add_globbed_headers(src_tools_common "tools/common")

	#Compilers.
	# DG: this is always added, why add it again? file(GLOB src_compiler_renderbump "neo/tools/compilers/renderbump/*.cpp")
	file(GLOB src_compiler_roqvq	  "tools/compilers/roqvq/*.cpp") # FIXME: some of those were added before
	add_globbed_headers(src_compiler_roqvq "tools/compilers/roqvq")
	#tools
	# Articulated Frame editor.
	file(GLOB src_afeditor "tools/af/*.cpp")
	add_globbed_headers(src_afeditor "tools/af")
	# Declaration editor
	file(GLOB src_decleditor "tools/decl/*.cpp")
	add_globbed_headers(src_decleditor "tools/decl")
	# GUI Editor.
	file(GLOB src_gui_editor "tools/guied/*.cpp")
	add_globbed_headers(src_gui_editor "tools/guied")
	# Material editor
	file(GLOB src_materialeditor "tools/materialeditor/*.cpp")
	add_globbed_headers(src_materialeditor "tools/materialeditor")
	# Particle Editor
	file(GLOB src_particleeditor "tools/particle/*.cpp")
	add_globbed_headers(src_particleeditor "tools/particle")
	# PDA editor
	file(GLOB src_pdaeditor "tools/pda/*.cpp")
	add_globbed_headers(src_pdaeditor "tools/pda")
	# Radiant ( Map editor )
	file(GLOB src_map_editor "tools/radiant/*.cpp")
	add_globbed_headers(src_map_editor "tools/radiant")
	# Script editor
	file(GLOB src_script_editor "tools/script/*.cpp")
	add_globbed_headers(src_script_editor "tools/script")
	# Script Debugger
	set(src_debuggerClient
		tools/debugger/DebuggerClient.h
		tools/debugger/DebuggerClient.cpp
		tools/debugger/DebuggerApp.h
		tools/debugger/DebuggerApp.cpp
		tools/debugger/DebuggerQuickWatchDlg.h
		tools/debugger/DebuggerQuickWatchDlg.cpp
		tools/debugger/DebuggerWindow.h
		tools/debugger/DebuggerWindow.cpp
		tools/debugger/DebuggerFindDlg.h
		tools/debugger/DebuggerFindDlg.cpp
	)
	set(src_script_debugger
		${src_debuggerServer}
		${src_debuggerClient}
	)
	# sound editor?
	file(GLOB src_sound_editor "tools/sound/*.cpp")
	add_globbed_headers(src_sound_editor "tools/sound")
	

	# The numerous tools in a nice list.
	list(APPEND src_editor_tools
		${src_comafx}
		${src_tools_common}
		${src_compiler_renderbump}
		${src_afeditor}
		${src_decleditor}
		${src_gui_editor}
		${src_materialeditor}
		${src_particleeditor}
		${src_pdaeditor}
		${src_map_editor}
		${src_script_editor}
		${src_sound_editor}
		${src_script_debugger}
		"tools/edit_public.h"
		"tools/edit_gui_common.h"
		)
	SET(CMAKE_MFC_FLAG 2)
	set(TOOLS_DEFINES "ID_ALLOW_TOOLS;_AFXDLL")
else()
	set(src_editor_tools "tools/edit_stub.cpp" "tools/edit_public.h" "tools/debugger/debugger_common.h")
	list(APPEND src_editor_tools
		${src_debuggerServer}
	)
endif()


if(AROS)
	set(DHEWM3BINARY "ADoom3")
	set(sys_libs ${sys_libs} dll)

	set(src_arosdll
		sys/aros/dll/dllstartup.c
		sys/aros/dll/dll.c
		sys/aros/dll/dllimport.c
	)

	set(src_sys_base
		sys/cpu.cpp
		sys/threads.cpp
		sys/events.cpp
		sys/sys_local.cpp
		sys/aros/aros_net.cpp
		sys/aros/aros_signal.cpp
		sys/aros/aros_main.cpp
		sys/aros/aros_dos.cpp
	)

	set(src_sys_core
		sys/glimp.cpp
	)
elseif(APPLE)
	set(OSX_RESOURCE_FILES
		"${CMAKE_SOURCE_DIR}/sys/osx/Doom3.icns"
		"${CMAKE_SOURCE_DIR}/sys/osx/Doom 3.rsrc"
	)

	set_source_files_properties(${OSX_RESOURCE_FILES} PROPERTIES MACOSX_PACKAGE_LOCATION Resources)

	set(src_sys_base
		sys/cpu.cpp
		sys/threads.cpp
		sys/events.cpp
		sys/sys_local.cpp
		sys/posix/posix_net.cpp
		sys/posix/posix_main.cpp
	)

	set(src_sys_core
		sys/glimp.cpp
		sys/osx/DOOMController.mm
		sys/osx/macosx_misc.mm
		sys/osx/SDLMain.m
		${OSX_RESOURCE_FILES}
	)
elseif(WIN32)

	set(src_sys_base
		sys/cpu.cpp
		sys/threads.cpp
		sys/events.cpp
		sys/sys_local.cpp
		sys/win32/win_input.cpp
		sys/win32/win_main.cpp
		sys/win32/win_net.cpp
		sys/win32/win_shared.cpp
		sys/win32/win_syscon.cpp
	)

	if(NOT SDL2 AND NOT SDL3)
		# only SDL1.2 still uses SDL_win32_main.c
		set(src_sys_base ${src_sys_base} sys/win32/SDL_win32_main.c)
	endif()

	# adding the few relevant headers in sys/ manually..
	set(src_sys_base ${src_sys_base}
		sys/platform.h
		sys/sys_local.h
		sys/sys_public.h
		sys/win32/win_local.h
	)

	set(src_sys_core
		sys/glimp.cpp
	)

	if(TOOLS)
		set(src_sys_core ${src_sys_core} "sys/win32/rc/doom.rc")
	else()
		# adding both .rc files breaks the build, but I think it only contains the icon
		# and doom.rc also contains that (+icons for editor etc, AFAIK), so this is fine
		set(src_sys_core ${src_sys_core} "${CMAKE_SOURCE_DIR}/sys/win32/rc/dhewm3.rc" )
	endif()

else()
	set(src_sys_base
		sys/cpu.cpp
		sys/threads.cpp
		sys/events.cpp
		sys/sys_local.cpp
		sys/posix/posix_net.cpp
		sys/posix/posix_main.cpp
		sys/linux/main.cpp
	)

	set(src_sys_core
		sys/glimp.cpp
	)
endif()

include_directories(${CMAKE_BINARY_DIR})
include_directories(${CMAKE_SOURCE_DIR})

add_library(idlib STATIC ${src_idlib})
if(SDL3)
	target_link_libraries(idlib SDL3::Headers) # so it can use SDL_Endian.h
endif()
if (AROS)
	add_library(dll STATIC ${src_arosdll})
        if(CMAKE_SYSTEM_PROCESSOR STREQUAL "i386")
		set(AROS_ARCH "x86")
        else()
		set(AROS_ARCH ${CMAKE_SYSTEM_PROCESSOR})
	endif()
else()
	if(D3_COMPILER_IS_GCC_OR_CLANG AND NOT MINGW)
		set_target_properties(idlib PROPERTIES COMPILE_FLAGS "-fPIC")
	endif()
endif()

source_group(TREE ${CMAKE_CURRENT_SOURCE_DIR} PREFIX neo FILES ${src_idlib})

if(HARDLINK_GAME)
	if(BASE)
		set(src_core ${src_core} ${src_game})
		set(game_includes "${CMAKE_SOURCE_DIR}/game")
		if(D3XP)
			message(WARNING "hardlinking the base game, d3xp will not be supported (disable BASE for D3XP support with HARDLINK_GAME)")
		endif()
		
	elseif(D3XP)
		set(src_core ${src_core} ${src_d3xp})
		set(game_includes "${CMAKE_SOURCE_DIR}/d3xp")
	endif()
endif()# HARDLINK_GAME

if(CORE)
	add_executable(${DHEWM3BINARY} WIN32 MACOSX_BUNDLE
		${src_core}
		${src_sys_base}
		${src_sys_core}
		${src_imgui}
		${src_editor_tools}
	)
	
	if(MSVC AND CMAKE_MAJOR_VERSION GREATER 3 OR ( CMAKE_MAJOR_VERSION EQUAL 3 AND CMAKE_MINOR_VERSION GREATER_EQUAL 6 ))
		# CMake >= 3.6 supports setting the default project started for debugging (instead of trying to launch ALL_BUILD ...)
		set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT ${DHEWM3BINARY})
	endif()

	source_group(TREE ${CMAKE_CURRENT_SOURCE_DIR} PREFIX neo FILES ${src_core} ${src_sys_base} ${src_sys_core} ${src_imgui} ${src_editor_tools})

	target_include_directories(${DHEWM3BINARY} PRIVATE "${CMAKE_SOURCE_DIR}/libs/imgui")

if(HARDLINK_GAME)
	set_target_properties(${DHEWM3BINARY} PROPERTIES COMPILE_DEFINITIONS "${TOOLS_DEFINES}")
	target_include_directories(${DHEWM3BINARY} PRIVATE ${game_includes})
else()
	set_target_properties(${DHEWM3BINARY} PROPERTIES COMPILE_DEFINITIONS "__DOOM_DLL__;${TOOLS_DEFINES}")
endif()
	set_target_properties(${DHEWM3BINARY} PROPERTIES LINK_FLAGS "${ldflags}")
	set_target_properties(${DHEWM3BINARY} PROPERTIES MACOSX_BUNDLE_INFO_PLIST ${PROJECT_SOURCE_DIR}/sys/osx/Info.plist)

	target_link_libraries(${DHEWM3BINARY}
		idlib
		${OPENAL_LIBRARY}
		${CURL_LIBRARY}
		${SDLx_LIBRARY}
		${sys_libs}
	)

	if(NOT APPLE AND NOT WIN32)
		install(TARGETS ${DHEWM3BINARY}
				RUNTIME DESTINATION "${bindir}"
				LIBRARY DESTINATION "${libdir}"
				ARCHIVE DESTINATION "${libdir}"
		)
	endif()
endif()

if(DEDICATED)
	add_executable(${DHEWM3BINARY}ded WIN32 MACOSX_BUNDLE
		${src_core}
		${src_stub_openal}
		${src_stub_gl}
		${src_sys_base}
		${src_debuggerServer}
	)
	
	source_group(TREE ${CMAKE_CURRENT_SOURCE_DIR} PREFIX neo FILES ${src_core} ${src_sys_base} ${src_stub_openal} ${src_stub_gl} ${src_debuggerServer})

if(HARDLINK_GAME)
	set_target_properties(${DHEWM3BINARY}ded PROPERTIES COMPILE_DEFINITIONS "IMGUI_DISABLE;ID_DEDICATED")
	target_include_directories(${DHEWM3BINARY}ded PRIVATE ${game_includes})
else()
	set_target_properties(${DHEWM3BINARY}ded PROPERTIES COMPILE_DEFINITIONS "IMGUI_DISABLE;ID_DEDICATED;__DOOM_DLL__")
endif()
	set_target_properties(${DHEWM3BINARY}ded PROPERTIES LINK_FLAGS "${ldflags}")
	target_link_libraries(${DHEWM3BINARY}ded
		idlib
		${CURL_LIBRARY}
		${SDLx_LIBRARY}
		${sys_libs}
	)

	if(NOT APPLE AND NOT WIN32)
		install(TARGETS ${DHEWM3BINARY}ded
				RUNTIME DESTINATION "${bindir}"
				LIBRARY DESTINATION "${libdir}"
				ARCHIVE DESTINATION "${libdir}"
		)
	endif()
endif()

if(BASE AND NOT HARDLINK_GAME)
	if (AROS)
		add_executable(base sys/aros/dll/dllglue.c ${src_game})
		set_target_properties(base PROPERTIES OUTPUT_NAME "base.aros-${AROS_ARCH}")
	else()
		add_library(base SHARED ${src_game})
	endif()
	
	source_group(TREE ${CMAKE_CURRENT_SOURCE_DIR} PREFIX neo FILES ${src_game})
	
	set_target_properties(base PROPERTIES PREFIX "")
	set_target_properties(base PROPERTIES COMPILE_DEFINITIONS "GAME_DLL")
	target_include_directories(base PRIVATE "${CMAKE_SOURCE_DIR}/game")
	set_target_properties(base PROPERTIES LINK_FLAGS "${ldflags}")
	set_target_properties(base PROPERTIES INSTALL_NAME_DIR "@executable_path")
	if (AROS)
		target_link_libraries(base idlib dll)
	else()
		target_link_libraries(base idlib)
	endif()

	if(NOT APPLE AND NOT WIN32)
		install(TARGETS base
				RUNTIME DESTINATION "${bindir}"
				LIBRARY DESTINATION "${libdir}"
				ARCHIVE DESTINATION "${libdir}"
		)
	endif()
endif()

if(D3XP AND NOT HARDLINK_GAME)
	if (AROS)
		add_executable(d3xp sys/aros/dll/dllglue.c ${src_d3xp})
		set_target_properties(d3xp PROPERTIES OUTPUT_NAME "d3xp.aros-${AROS_ARCH}")
	else()
		add_library(d3xp SHARED ${src_d3xp})
	endif()
	source_group(TREE ${CMAKE_CURRENT_SOURCE_DIR} PREFIX neo FILES ${src_d3xp})
	set_target_properties(d3xp PROPERTIES PREFIX "")
	set_target_properties(d3xp PROPERTIES COMPILE_DEFINITIONS "GAME_DLL;_D3XP;CTF")
	target_include_directories(d3xp PRIVATE "${CMAKE_SOURCE_DIR}/d3xp")
	set_target_properties(d3xp PROPERTIES LINK_FLAGS "${ldflags}")
	set_target_properties(d3xp PROPERTIES INSTALL_NAME_DIR "@executable_path")
	if (AROS)
		target_link_libraries(d3xp idlib dll)
	else()
		target_link_libraries(d3xp idlib)
	endif()

	if(NOT APPLE AND NOT WIN32)
		install(TARGETS d3xp
				RUNTIME DESTINATION "${bindir}"
				LIBRARY DESTINATION "${libdir}"
				ARCHIVE DESTINATION "${libdir}"
		)
	endif()
endif()