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CMakeLists.txt
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CMakeLists.txt
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cmake_minimum_required(VERSION 2.8.12...3.19.1)
if(CMAKE_VERSION VERSION_LESS 3.12)
cmake_policy(VERSION ${CMAKE_VERSION})
endif()
set(CMAKE_OSX_DEPLOYMENT_TARGET 10.13 CACHE INTERNAL "")
if(CMAKE_OSX_DEPLOYMENT_TARGET VERSION_LESS 10.13)
message(WARNING "Building for macOS < 10.13 is not supported")
endif()
file(STRINGS src/game/version.h VERSION_LINE
LIMIT_COUNT 1
REGEX "^#define GAME_RELEASE_VERSION "
)
if(VERSION_LINE MATCHES "\"([0-9]+)\\.([0-9]+)\\.([0-9]+)\"")
set(VERSION_MAJOR ${CMAKE_MATCH_1})
set(VERSION_MINOR ${CMAKE_MATCH_2})
set(VERSION_PATCH ${CMAKE_MATCH_3})
elseif(VERSION_LINE MATCHES "\"([0-9]+)\\.([0-9]+)\"")
set(VERSION_MAJOR ${CMAKE_MATCH_1})
set(VERSION_MINOR ${CMAKE_MATCH_2})
set(VERSION_PATCH "0")
else()
message(FATAL_ERROR "Couldn't parse version from src/game/version.h")
endif()
# Extra support for CMake pre-3.0
if(NOT POLICY CMP0048)
set(PROJECT_VERSION_MAJOR ${VERSION_MAJOR})
set(PROJECT_VERSION_MINOR ${VERSION_MINOR})
set(PROJECT_VERSION_PATCH ${VERSION_PATCH})
if(VERSION_PATCH STREQUAL "0")
set(PROJECT_VERSION ${VERSION_MAJOR}.${VERSION_MINOR})
else()
set(PROJECT_VERSION ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH})
endif()
endif()
if(VERSION_PATCH STREQUAL "0")
project(DDNet VERSION ${VERSION_MAJOR}.${VERSION_MINOR})
else()
project(DDNet VERSION ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH})
endif()
set(ORIGINAL_CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH})
set(ORIGINAL_CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES})
set(ORIGINAL_CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
set(OWN_CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR}/cmake)
set(CMAKE_MODULE_PATH ${OWN_CMAKE_MODULE_PATH})
if(CMAKE_SIZEOF_VOID_P EQUAL 4)
set(TARGET_BITS "32")
else()
set(TARGET_BITS "64")
endif()
if("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "arm" OR "${CMAKE_SYSTEM_PROCESSOR}" MATCHES "aarch64")
if(TARGET_BITS STREQUAL "32")
set(TARGET_CPU_ARCHITECTURE "arm")
else()
set(TARGET_CPU_ARCHITECTURE "arm64")
endif()
else()
if(TARGET_BITS STREQUAL "32")
set(TARGET_CPU_ARCHITECTURE "x86")
else()
set(TARGET_CPU_ARCHITECTURE "x86_64")
endif()
endif()
if(CMAKE_SYSTEM_NAME STREQUAL "Windows")
set(TARGET_OS "windows")
elseif(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
set(TARGET_OS "linux")
elseif(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
set(TARGET_OS "mac")
elseif(CMAKE_SYSTEM_NAME STREQUAL "Haiku")
set(TARGET_OS "haiku")
elseif(CMAKE_SYSTEM_NAME STREQUAL "Android")
set(TARGET_OS "android")
endif()
include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.18)
include(CheckLinkerFlag)
endif()
include(CheckSymbolExists)
if(NOT (CMAKE_SYSTEM_NAME STREQUAL "Emscripten"))
include(CheckAtomic)
endif()
check_symbol_exists(__i386 "" TARGET_ARCH_X86_i386)
if(TARGET_ARCH_X86_i386)
set(TARGET_ARCH x86)
else()
set(TARGET_ARCH)
endif()
set(AUTO_DEPENDENCIES_DEFAULT OFF)
set(AUTO_VULKAN_BACKEND ON)
if(TARGET_OS STREQUAL "windows")
set(AUTO_DEPENDENCIES_DEFAULT ON)
if(TARGET_CPU_ARCHITECTURE STREQUAL "x86")
set(AUTO_VULKAN_BACKEND OFF)
endif()
elseif(TARGET_OS STREQUAL "mac")
set(AUTO_VULKAN_BACKEND OFF)
endif()
option(WEBSOCKETS "Enable websockets support" OFF)
option(MYSQL "Enable mysql support" OFF)
option(TEST_MYSQL "Test mysql support in unit tests (also sets -DMYSQL=ON)" OFF)
option(AUTOUPDATE "Enable the autoupdater" OFF)
option(INFORM_UPDATE "Inform about available updates" ON)
option(VIDEORECORDER "Enable video recording support via FFmpeg" ON)
option(UPNP "Enable UPnP support" OFF)
option(ANTIBOT "Enable support for a dynamic anticheat library (not provided, see src/antibot for interface if you want to implement your own)" OFF)
option(HEADLESS_CLIENT "Build the client without graphics" OFF)
option(CLIENT "Compile client" ON)
option(SERVER "Compile server" ON)
option(TOOLS "Compile tools" ON)
option(DOWNLOAD_GTEST "Download and compile GTest" ${AUTO_DEPENDENCIES_DEFAULT})
option(STEAM "Build the Steam release version" OFF)
option(DISCORD "Enable Discord rich presence support" OFF)
option(DISCORD_DYNAMIC "Enable discovering Discord rich presence libraries at runtime (Linux only)" OFF)
option(PREFER_BUNDLED_LIBS "Prefer bundled libraries over system libraries" ${AUTO_DEPENDENCIES_DEFAULT})
option(DEV "Don't generate stuff necessary for packaging" OFF)
option(VULKAN "Enable the vulkan backend" ${AUTO_VULKAN_BACKEND})
option(EXCEPTION_HANDLING "Enable exception handling (only works with Windows as of now)" OFF)
option(IPO "Enable interprocedural optimizations" OFF)
option(FUSE_LD "Linker to use" OFF)
if(CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
include(${PROJECT_SOURCE_DIR}/cmake/toolchains/Emscripten.toolchain)
endif()
if(TEST_MYSQL)
set(MYSQL ON)
endif()
# Set version if not explicitly set
if(NOT VERSION)
set(VERSION ${PROJECT_VERSION})
endif()
set(OpenGL_GL_PREFERENCE LEGACY)
# Set the default build type to Release
if(NOT(CMAKE_BUILD_TYPE))
if(NOT(DEV))
set(CMAKE_BUILD_TYPE Release)
else()
set(CMAKE_BUILD_TYPE Debug)
endif()
endif()
if(NOT(CMAKE_BUILD_TYPE MATCHES "^(Release|Debug|RelWithDebInfo|MinSizeRel)$"))
message(WARNING "Unknown CMAKE_BUILD_TYPE, should be one of Release, Debug, RelWithDebInfo or MinSizeRel")
endif()
set(DBG $<OR:$<CONFIG:Debug>,$<CONFIG:RelWithDebInfo>>)
if(IPO)
if(CMAKE_VERSION VERSION_GREATER 3.9)
include(CheckIPOSupported)
check_ipo_supported(RESULT ipo_supported OUTPUT ipo_output)
if(ipo_supported)
message(STATUS "IPO is enabled")
set(ENABLE_IPO TRUE)
else()
message(WARNING "IPO is not supported: ${ipo_output}")
endif()
else()
message(WARNING "IPO enablement requires CMake 3.9+")
endif()
endif()
if(CMAKE_VERSION VERSION_LESS 3.0)
configure_file(src/game/version.h vd.h)
else()
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS
src/game/version.h
)
endif()
set(SERVER_EXECUTABLE DDNet-Server CACHE STRING "Name of the built server executable")
set(CLIENT_EXECUTABLE DDNet CACHE STRING "Name of the build client executable")
########################################################################
# Compiler flags
########################################################################
function(add_c_compiler_flag_if_supported VARIABLE FLAG)
if(ARGC GREATER 2)
set(CHECKED_FLAG "${ARGV2}")
else()
set(CHECKED_FLAG "${FLAG}")
endif()
string(REGEX REPLACE "[^A-Za-z0-9]" "_" CONFIG_VARIABLE "FLAG_SUPPORTED${CHECKED_FLAG}")
check_c_compiler_flag("${CHECKED_FLAG}" ${CONFIG_VARIABLE})
if(${CONFIG_VARIABLE})
if(${VARIABLE})
set("${VARIABLE}" "${${VARIABLE}};${FLAG}" PARENT_SCOPE)
else()
set("${VARIABLE}" "${FLAG}" PARENT_SCOPE)
endif()
endif()
endfunction()
function(add_cxx_compiler_flag_if_supported VARIABLE FLAG)
if(ARGC GREATER 2)
set(CHECKED_FLAG "${ARGV2}")
else()
set(CHECKED_FLAG "${FLAG}")
endif()
string(REGEX REPLACE "[^A-Za-z0-9]" "_" CONFIG_VARIABLE "FLAG_SUPPORTED${CHECKED_FLAG}")
check_cxx_compiler_flag("${CHECKED_FLAG}" ${CONFIG_VARIABLE})
if(${CONFIG_VARIABLE})
if(${VARIABLE})
set("${VARIABLE}" "${${VARIABLE}};${FLAG}" PARENT_SCOPE)
else()
set("${VARIABLE}" "${FLAG}" PARENT_SCOPE)
endif()
endif()
endfunction()
function(add_linker_flag_if_supported VARIABLE FLAG)
if(ARGC GREATER 2)
set(CHECKED_FLAG "${ARGV2}")
else()
set(CHECKED_FLAG "${FLAG}")
endif()
string(REGEX REPLACE "[^A-Za-z0-9]" "_" CONFIG_VARIABLE "FLAG_SUPPORTED${CHECKED_FLAG}")
if(CMAKE_VERSION VERSION_LESS 3.18)
set(${CONFIG_VARIABLE} OFF)
else()
check_linker_flag(C "${CHECKED_FLAG}" ${CONFIG_VARIABLE})
endif()
if(${CONFIG_VARIABLE})
if(${VARIABLE})
set("${VARIABLE}" "${${VARIABLE}};${FLAG}" PARENT_SCOPE)
else()
set("${VARIABLE}" "${FLAG}" PARENT_SCOPE)
endif()
endif()
endfunction()
# Force compiler colors on when using ninja. Ninja filters the colors out when
# it's not printing to a terminal on its own.
if(CMAKE_GENERATOR STREQUAL "Ninja")
add_cxx_compiler_flag_if_supported(OUR_FLAGS -fdiagnostics-color=always)
add_cxx_compiler_flag_if_supported(OUR_FLAGS -fcolor-diagnostics)
endif()
if(NOT MSVC AND NOT HAIKU)
IF(NOT TARGET_OS STREQUAL "mac")
if(NOT FUSE_LD STREQUAL OFF)
add_linker_flag_if_supported(OUR_FLAGS_LINK -fuse-ld=${FUSE_LD})
if(FLAG_SUPPORTED_fuse_ld_${FUSE_LD})
message(STATUS "Using ${FUSE_LD} linker")
endif()
else()
if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR NOT ENABLE_IPO)
# GCC+LTO: pthread_create has failed: Resource temporarily unavailable
add_linker_flag_if_supported(OUR_FLAGS_LINK -fuse-ld=mold)
if(FLAG_SUPPORTED_fuse_ld_mold)
message(STATUS "Using mold linker")
else()
# Does not support GCC+LTO
add_linker_flag_if_supported(OUR_FLAGS_LINK -fuse-ld=lld)
if(FLAG_SUPPORTED_fuse_ld_lld)
message(STATUS "Using lld linker")
else()
add_linker_flag_if_supported(OUR_FLAGS_LINK -fuse-ld=gold)
if(FLAG_SUPPORTED_fuse_ld_gold)
message(STATUS "Using gold linker")
endif()
endif()
endif()
else()
add_linker_flag_if_supported(OUR_FLAGS_LINK -fuse-ld=gold)
if(FLAG_SUPPORTED_fuse_ld_gold)
message(STATUS "Using gold linker")
endif()
endif()
endif()
endif()
if(CMAKE_VERSION VERSION_LESS 3.1 OR TARGET_OS STREQUAL "mac")
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -std=gnu++17)
endif()
# Protect the stack pointer.
# -fstack-protector-all doesn't work on MinGW.
add_cxx_compiler_flag_if_supported(OUR_FLAGS -fstack-protector-all)
# Disable exceptions as DDNet does not use them.
add_cxx_compiler_flag_if_supported(OUR_FLAGS -fno-exceptions)
# Inaccurate floating point numbers cause problems on mingw-w64-gcc when
# compiling for x86, might cause problems elsewhere. So don't store floats
# in registers but keep them at higher accuracy.
if(TARGET_ARCH STREQUAL "x86")
add_cxx_compiler_flag_if_supported(OUR_FLAGS -ffloat-store)
endif()
# Don't insert timestamps into PEs to keep the build reproducible.
if(TARGET_OS STREQUAL "windows")
add_cxx_compiler_flag_if_supported(OUR_FLAGS_LINK -Wl,--no-insert-timestamp)
endif()
if(TARGET_OS STREQUAL "mac")
add_cxx_compiler_flag_if_supported(OUR_FLAGS -stdlib=libc++)
endif()
if(EXCEPTION_HANDLING)
add_cxx_compiler_flag_if_supported(OUR_FLAGS -DCONF_EXCEPTION_HANDLING)
# use the frame pointer (frame pointer usage is disabled by default in
# some architectures like x86_64 and for some optimization levels; and it
# may be impossible to walk the call stack without it)
add_cxx_compiler_flag_if_supported(OUR_FLAGS -fno-omit-frame-pointer)
endif()
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wall)
if(CMAKE_VERSION VERSION_GREATER 3.3 OR CMAKE_VERSION VERSION_EQUAL 3.3)
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN
$<$<COMPILE_LANGUAGE:C>:-Wdeclaration-after-statement>
-Wdeclaration-after-statement
)
endif()
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wextra)
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wno-unused-parameter)
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wno-missing-field-initializers)
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wformat=2) # Warn about format strings.
add_c_compiler_flag_if_supported(OUR_FLAGS_DEP -Wno-implicit-function-declaration)
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wno-nullability-completeness) # Mac OS build on github
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wduplicated-cond)
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wduplicated-branches)
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wlogical-op)
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wrestrict)
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wshadow-all) # clang
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wshadow=global) # gcc
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wthread-safety)
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wthread-safety-negative)
add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wsuggest-override)
add_linker_flag_if_supported(OUR_FLAGS_LINK -Wno-alloc-size-larger-than) # save.cpp with LTO
# add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wdouble-promotion) # Many occurrences
# add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wnull-dereference) # Many occurrences
# add_cxx_compiler_flag_if_supported(OUR_FLAGS_OWN -Wuseless-cast) # TODO: Enable for C++ code except gtest
endif()
if(MSVC)
if(EXCEPTION_HANDLING)
add_cxx_compiler_flag_if_supported(OUR_FLAGS /DCONF_EXCEPTION_HANDLING)
endif()
endif()
if(NOT MSVC AND NOT HAIKU)
check_c_compiler_flag("-O2;-Wp,-Werror;-D_FORTIFY_SOURCE=2" DEFINE_FORTIFY_SOURCE) # Some distributions define _FORTIFY_SOURCE by themselves.
endif()
########################################################################
# COMMON FUNCTIONS
########################################################################
function(set_glob VAR GLOBBING EXTS DIRECTORY) # ...
set(GLOBS)
foreach(ext ${EXTS})
list(APPEND GLOBS "${DIRECTORY}/*.${ext}")
endforeach()
file(${GLOBBING} GLOB_RESULT ${GLOBS})
list(SORT GLOB_RESULT)
set(FILES)
foreach(file ${ARGN})
list(APPEND FILES "${PROJECT_SOURCE_DIR}/${DIRECTORY}/${file}")
endforeach()
if(NOT FILES STREQUAL GLOB_RESULT)
message(AUTHOR_WARNING "${VAR} does not contain every file from directory ${DIRECTORY}")
set(LIST_BUT_NOT_GLOB)
if(POLICY CMP0057)
cmake_policy(SET CMP0057 NEW)
foreach(file ${FILES})
if(NOT file IN_LIST GLOB_RESULT)
list(APPEND LIST_BUT_NOT_GLOB ${file})
endif()
endforeach()
if(LIST_BUT_NOT_GLOB)
message(AUTHOR_WARNING "Entries only present in ${VAR}: ${LIST_BUT_NOT_GLOB}")
endif()
set(GLOB_BUT_NOT_LIST)
foreach(file ${GLOB_RESULT})
if(NOT file IN_LIST FILES)
list(APPEND GLOB_BUT_NOT_LIST ${file})
endif()
endforeach()
if(GLOB_BUT_NOT_LIST)
message(AUTHOR_WARNING "Entries only present in ${DIRECTORY}: ${GLOB_BUT_NOT_LIST}")
endif()
if(NOT LIST_BUT_NOT_GLOB AND NOT GLOB_BUT_NOT_LIST)
message(AUTHOR_WARNING "${VAR} is not alphabetically sorted")
endif()
endif()
endif()
set(${VAR} ${FILES} PARENT_SCOPE)
endfunction()
function(set_src VAR GLOBBING DIRECTORY) # ...
set_glob(${VAR} ${GLOBBING} "c;cpp;h" ${DIRECTORY} ${ARGN})
set(${VAR} ${${VAR}} PARENT_SCOPE)
set(CHECKSUM_SRC ${CHECKSUM_SRC} ${${VAR}} PARENT_SCOPE)
endfunction()
set(CHECKSUM_SRC)
function(set_own_rpath TARGET)
if(NOT TARGET_OS STREQUAL "windows" AND NOT TARGET_OS STREQUAL "mac")
if(CMAKE_VERSION VERSION_GREATER 3.8 OR CMAKE_VERSION VERSION_EQUAL 3.8)
set_property(TARGET ${TARGET} PROPERTY BUILD_RPATH "$ORIGIN")
endif()
set_property(TARGET ${TARGET} PROPERTY INSTALL_RPATH "$ORIGIN/../lib/ddnet")
endif()
endfunction()
if(NOT TARGET_OS STREQUAL "windows" AND NOT TARGET_OS STREQUAL "mac" AND CMAKE_VERSION VERSION_LESS 3.8)
if((CLIENT AND (STEAM OR DISCORD_DYNAMIC)) OR ANTIBOT)
message(STATUS "Can't set BUILD_RPATH in CMake before 3.8, pass -Wl,-rpath,'$ORIGIN' manually if you wish to emulate this. Or just install a newer version of CMake...")
endif()
endif()
########################################################################
# INITIALIZE TARGET LISTS
########################################################################
set(TARGETS_OWN)
set(TARGETS_DEP)
set(TARGETS_LINK) # Targets with a linking stage.
########################################################################
# DEPENDENCIES
########################################################################
if((CMAKE_OSX_ARCHITECTURES STREQUAL "arm64;x86_64" OR CMAKE_OSX_ARCHITECTURES STREQUAL "x86_64;arm64") AND TARGET_OS STREQUAL "mac")
set(FAT ON)
else()
set(FAT OFF)
endif()
if(FAT)
set(LIB_DIR "${TARGET_OS}/libfat")
elseif(CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
set(LIB_DIR "webasm/libwasm")
elseif(TARGET_CPU_ARCHITECTURE STREQUAL "arm" OR TARGET_CPU_ARCHITECTURE STREQUAL "arm64")
set(LIB_DIR "${TARGET_OS}/lib${TARGET_CPU_ARCHITECTURE}")
else()
set(LIB_DIR "${TARGET_OS}/lib${TARGET_BITS}")
endif()
function(set_extra_dirs_lib VARIABLE NAME)
set("PATHS_${VARIABLE}_LIBDIR" PARENT_SCOPE)
set("HINTS_${VARIABLE}_LIBDIR" PARENT_SCOPE)
if(PREFER_BUNDLED_LIBS)
set(TYPE HINTS)
else()
set(TYPE PATHS)
endif()
if(TARGET_BITS AND TARGET_OS)
set(DIR "ddnet-libs/${NAME}/${LIB_DIR}")
set("${TYPE}_${VARIABLE}_LIBDIR" "${DIR}" PARENT_SCOPE)
set("EXTRA_${VARIABLE}_LIBDIR" "${DIR}" PARENT_SCOPE)
endif()
endfunction()
function(set_extra_dirs_include VARIABLE NAME LIBRARY)
set("PATHS_${VARIABLE}_INCLUDEDIR" PARENT_SCOPE)
set("HINTS_${VARIABLE}_INCLUDEDIR" PARENT_SCOPE)
is_bundled(IS_BUNDLED "${LIBRARY}")
if(IS_BUNDLED)
set(TMP_TARGET_OS ${TARGET_OS})
if(CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
set(TMP_TARGET_OS webasm)
endif()
set("HINTS_${VARIABLE}_INCLUDEDIR" "ddnet-libs/${NAME}/include" "ddnet-libs/${NAME}/include/${TMP_TARGET_OS}" PARENT_SCOPE)
endif()
endfunction()
if(CMAKE_CROSSCOMPILING)
if(TARGET_OS STREQUAL "android" OR CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
# be more aggressive with android toolchain
set(CROSSCOMPILING_NO_CMAKE_SYSTEM_PATH NO_CMAKE_SYSTEM_PATH NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
else()
set(CROSSCOMPILING_NO_CMAKE_SYSTEM_PATH NO_CMAKE_SYSTEM_PATH)
endif()
else()
set(CROSSCOMPILING_NO_CMAKE_SYSTEM_PATH)
endif()
function(is_bundled VARIABLE PATH)
if(PATH)
string(FIND "${PATH}" "${PROJECT_SOURCE_DIR}" LOCAL_PATH_POS)
if(LOCAL_PATH_POS EQUAL 0 AND TARGET_BITS AND TARGET_OS)
set("${VARIABLE}" ON PARENT_SCOPE)
else()
set("${VARIABLE}" OFF PARENT_SCOPE)
endif()
else()
set("${VARIABLE}" OFF PARENT_SCOPE)
endif()
endfunction()
if(NOT CMAKE_CROSSCOMPILING)
# Check for PkgConfig once so all the other `find_package` calls can do it
# quietly.
find_package(PkgConfig)
endif()
if(TARGET_OS STREQUAL "android")
find_package(Android)
endif()
find_package(ZLIB)
find_package(Crypto)
find_package(Curl)
if(CLIENT AND VIDEORECORDER)
find_package(FFMPEG)
endif()
find_package(Freetype)
if(DOWNLOAD_GTEST)
find_package(Git)
endif()
if(NOT(TARGET_OS STREQUAL "android"))
find_package(GLEW)
endif()
find_package(GTest)
if(UPNP)
find_package(Miniupnpc)
endif()
if(MYSQL)
find_package(MySQL)
else()
set(MYSQL_LIBRARIES)
endif()
find_package(Ogg)
find_package(Opus)
find_package(Opusfile)
find_package(PNG)
find_package(PythonInterp 3)
find_package(Rust)
find_package(SDL2)
find_package(SQLite3)
if(DISCORD)
find_package(DiscordSdk)
endif()
if(UNIX)
# Use -pthread instead of -lpthread to draw dependencies other than libpthread
set(THREADS_PREFER_PTHREAD_FLAG TRUE)
endif()
find_package(Threads)
find_package(Wavpack)
if(WEBSOCKETS)
find_package(Websockets)
else()
set(WEBSOCKETS_LIBRARIES)
set(WEBSOCKETS_INCLUDE_DIRS)
endif()
if(EXCEPTION_HANDLING)
find_package(ExceptionHandling)
endif()
if(TARGET_OS AND TARGET_OS STREQUAL "mac")
find_program(CMAKE_OTOOL otool)
find_program(DMGBUILD dmgbuild)
endif()
set(VULKAN_SHADER_FILE_LIST "" CACHE STRING "Vulkan shader file list")
if(CLIENT AND VULKAN)
find_package(Vulkan)
include(cmake/BuildVulkanShaders.cmake)
else()
set(VULKAN_LIBRARIES)
set(VULKAN_INCLUDE_DIRS)
endif()
message(STATUS "******** ${CMAKE_PROJECT_NAME} ********")
set(TARGET "Target OS: ${TARGET_OS} ${CMAKE_SYSTEM_PROCESSOR}")
if(TARGET_OS STREQUAL "mac")
set(TARGET "${TARGET} (SDK: ${CMAKE_OSX_SYSROOT}, architectures: ${CMAKE_OSX_ARCHITECTURES})")
endif()
message(STATUS ${TARGET})
message(STATUS "Compiler: ${CMAKE_CXX_COMPILER}")
message(STATUS "Rust version: ${RUST_VERSION_STRING}")
message(STATUS "Build type: ${CMAKE_BUILD_TYPE}")
message(STATUS "Dependencies:")
function(show_dependency_status OUTPUT_NAME NAME)
if(${NAME}_FOUND)
if(${NAME}_BUNDLED)
message(STATUS " * ${OUTPUT_NAME} not found (using bundled version)")
else()
message(STATUS " * ${OUTPUT_NAME} found")
endif()
else()
message(STATUS " * ${OUTPUT_NAME} not found")
endif()
endfunction()
show_dependency_status("Curl" CURL)
if(TARGET_OS AND TARGET_OS STREQUAL "mac")
show_dependency_status("Dmg tools" DMGTOOLS)
endif()
if(CLIENT AND VIDEORECORDER)
show_dependency_status("FFmpeg" FFMPEG)
endif()
show_dependency_status("Freetype" FREETYPE)
if(DOWNLOAD_GTEST)
show_dependency_status("Git" GIT)
endif()
show_dependency_status("Glew" GLEW)
show_dependency_status("GTest" GTEST)
if(TARGET_OS AND TARGET_OS STREQUAL "mac")
show_dependency_status("Dmgbuild" DMGBUILD)
endif()
if(UPNP)
show_dependency_status("Miniupnpc" MINIUPNPC)
endif()
if(MYSQL)
show_dependency_status("MySQL" MYSQL)
endif()
show_dependency_status("Ogg" OGG)
show_dependency_status("OpenSSL Crypto" CRYPTO)
show_dependency_status("Opus" OPUS)
show_dependency_status("Opusfile" OPUSFILE)
show_dependency_status("PNG" PNG)
show_dependency_status("PythonInterp" PYTHONINTERP)
show_dependency_status("SDL2" SDL2)
show_dependency_status("SQLite3" SQLite3)
show_dependency_status("Wavpack" WAVPACK)
show_dependency_status("Zlib" ZLIB)
if(DISCORD)
show_dependency_status("DiscordSdk" DiscordSdk)
endif()
if(WEBSOCKETS)
show_dependency_status("Websockets" WEBSOCKETS)
endif()
if(CLIENT AND VULKAN)
show_dependency_status("Vulkan" VULKAN)
endif()
if(NOT(CURL_FOUND))
message(SEND_ERROR "You must install Curl to compile ${CMAKE_PROJECT_NAME}")
endif()
if(NOT(PYTHONINTERP_FOUND))
message(SEND_ERROR "You must install Python to compile ${CMAKE_PROJECT_NAME}")
endif()
if(NOT(RUST_FOUND))
message(SEND_ERROR "You must install Rust and Cargo to compile ${CMAKE_PROJECT_NAME}")
endif()
if(NOT(SQLite3_FOUND))
message(SEND_ERROR "You must install SQLite3 to compile ${CMAKE_PROJECT_NAME}")
endif()
if(MYSQL AND NOT(MYSQL_FOUND))
message(SEND_ERROR "You must install MySQL to compile the ${CMAKE_PROJECT_NAME} server with MySQL support")
endif()
if(WEBSOCKETS AND NOT(WEBSOCKETS_FOUND))
message(SEND_ERROR "You must install libwebsockets to compile the ${CMAKE_PROJECT_NAME} server with websocket support")
endif()
if(UPNP AND NOT(MINIUPNPC_FOUND))
message(SEND_ERROR "You must install miniupnpc to compile the ${CMAKE_PROJECT_NAME} server with UPnP support")
endif()
if(DISCORD AND NOT(DISCORDSDK_FOUND))
message(SEND_ERROR "You must install the Discord SDK to compile the ${CMAKE_PROJECT_NAME} client with Discord support")
endif()
if(DISCORD_DYNAMIC)
if(TARGET_OS STREQUAL "windows" OR TARGET_OS STREQUAL "mac")
message(SEND_ERROR "Dynamically loading the Discord SDK is only supported on Linux")
endif()
if(NOT DISCORD)
message(SEND_ERROR "You must enable the DISCORD flag if you want to link the Discord SDK")
endif()
endif()
if(NOT(PNG_FOUND))
message(SEND_ERROR "You must install libpng to compile ${CMAKE_PROJECT_NAME}")
endif()
if(CLIENT AND NOT(FREETYPE_FOUND))
message(SEND_ERROR "You must install Freetype to compile the ${CMAKE_PROJECT_NAME} client")
endif()
if(CLIENT AND NOT(OGG_FOUND))
message(SEND_ERROR "You must install Ogg to compile the ${CMAKE_PROJECT_NAME} client")
endif()
if(CLIENT AND NOT(OPUS_FOUND))
message(SEND_ERROR "You must install Opus to compile the ${CMAKE_PROJECT_NAME} client")
endif()
if(CLIENT AND NOT(OPUSFILE_FOUND))
message(SEND_ERROR "You must install Opusfile to compile the ${CMAKE_PROJECT_NAME} client")
endif()
if(CLIENT AND NOT(SDL2_FOUND))
message(SEND_ERROR "You must install SDL2 to compile the ${CMAKE_PROJECT_NAME} client")
endif()
if(TARGET_OS STREQUAL "android" AND CLIENT AND NOT(CRYPTO_FOUND))
message(SEND_ERROR "You must install OpenSSL to compile the ${CMAKE_PROJECT_NAME} client")
endif()
if(NOT(GTEST_FOUND))
if(DOWNLOAD_GTEST)
if(GIT_FOUND)
message(STATUS "Automatically downloading GTest to be able to run tests")
else()
set(DOWNLOAD_GTEST OFF)
message(WARNING "To automatically download GTest, you have to install Git")
endif()
else()
message(STATUS "To run the tests, you have to install GTest")
endif()
endif()
if(CLIENT AND VULKAN AND NOT(VULKAN_FOUND))
message(SEND_ERROR "You must install Vulkan libraries to compile the ${CMAKE_PROJECT_NAME} client")
endif()
if(TARGET_OS STREQUAL "windows")
set(PLATFORM_CLIENT)
set(PLATFORM_CLIENT_LIBS opengl32 winmm)
set(PLATFORM_LIBS)
list(APPEND PLATFORM_LIBS shlwapi) # PathIsRelativeW
list(APPEND PLATFORM_LIBS version ws2_32) # Windows sockets
list(APPEND PLATFORM_LIBS bcrypt userenv) # for Rust (https://github.com/rust-lang/rust/issues/91974)
list(APPEND PLATFORM_LIBS ole32) # CoInitialize(Ex)
list(APPEND PLATFORM_LIBS shell32)
elseif(TARGET_OS STREQUAL "mac")
find_library(CARBON Carbon)
find_library(COCOA Cocoa)
find_library(OPENGL OpenGL)
find_library(SECURITY Security)
set(PLATFORM_CLIENT
src/macos/client.mm
src/macos/notifications.mm
)
set(PLATFORM_CLIENT_LIBS ${COCOA} ${OPENGL})
set(PLATFORM_LIBS ${CARBON} ${SECURITY})
elseif(TARGET_OS STREQUAL "haiku")
set(PLATFORM_CLIENT)
find_package(OpenGL)
set(PLATFORM_LIBS GL network)
set(PLATFORM_CLIENT_LIBS ${OPENGL_gl_LIBRARY})
set(PLATFORM_CLIENT_INCLUDE_DIRS ${OPENGL_INCLUDE_DIR})
elseif(TARGET_OS STREQUAL "android")
set(PLATFORM_CLIENT
src/android/android_main.cpp
)
set(PLATFORM_LIBS ${TW_ANDROID_LIBS})
set(PLATFORM_CLIENT_LIBS ${PLATFORM_LIBS})
set(PLATFORM_CLIENT_INCLUDE_DIRS)
else()
find_package(Notify)
find_package(OpenGL)
set(PLATFORM_CLIENT_LIBS ${OPENGL_gl_LIBRARY} ${NOTIFY_LIBRARIES})
set(PLATFORM_CLIENT_INCLUDE_DIRS ${OPENGL_INCLUDE_DIR} ${NOTIFY_INCLUDE_DIRS})
set(PLATFORM_CLIENT)
if(TARGET_OS STREQUAL "linux")
set(PLATFORM_LIBS)
list(APPEND PLATFORM_LIBS rt) # clock_gettime for glibc < 2.17
list(APPEND PLATFORM_LIBS dl) # for Rust
else()
set(PLATFORM_LIBS)
endif()
endif()
if(CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
set(PLATFORM_CLIENT_LIBS GL)
set(PLATFORM_CLIENT_INCLUDE_DIRS "")
set(CMAKE_EXECUTABLE_SUFFIX ".html")
endif()
########################################################################
# DOWNLOAD GTEST
########################################################################
if(NOT(GTEST_FOUND) AND DOWNLOAD_GTEST)
set(DDNET_GTEST_VERSION 5c8ca58edfb304b2dd5e6061f83387470826dd87) # master as of 2021-04-07
configure_file(cmake/Download_GTest_CMakeLists.txt.in googletest-download/CMakeLists.txt)
execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
RESULT_VARIABLE result
WORKING_DIRECTORY ${PROJECT_BINARY_DIR}/googletest-download
)
if(result)
message(WARNING "CMake step for googletest failed: ${result}")
set(DOWNLOAD_GTEST OFF)
else()
execute_process(COMMAND ${CMAKE_COMMAND} --build .
RESULT_VARIABLE result
WORKING_DIRECTORY ${PROJECT_BINARY_DIR}/googletest-download
)
if(result)
message(WARNING "Build step for googletest failed: ${result}")
set(DOWNLOAD_GTEST OFF)
else()
# Prevent overriding the parent project's compiler/linker settings on Windows
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
# Add googletest directly to our build. This defines the gtest target.
add_subdirectory(
${PROJECT_BINARY_DIR}/googletest-src
${PROJECT_BINARY_DIR}/googletest-build
EXCLUDE_FROM_ALL
)
if(MSVC)
foreach(target gtest gmock)
set_property(TARGET ${target} PROPERTY MSVC_RUNTIME_LIBRARY MultiThreaded$<${DBG}:Debug>)
# `/w` disables all warnings. This is needed because `gtest` enables
# `/WX` (equivalent of `-Werror`) for some reason, breaking builds
# when MSVS adds new warnings.
target_compile_options(${target} PRIVATE /w)
endforeach()
endif()
set(GTEST_LIBRARIES gtest gmock)
set(GTEST_INCLUDE_DIRS)
if(CMAKE_VERSION VERSION_LESS 2.8.11)
set(GTEST_INCLUDE_DIRS "${gtest_SOURCE_DIR}/include" "${gmock_SOURCE_DIR}/include")
endif()
endif()
endif()
endif()
########################################################################
# DEPENDENCY COMPILATION
########################################################################
set_src(DEP_JSON_SRC GLOB src/engine/external/json-parser json.c json.h)
add_library(json EXCLUDE_FROM_ALL OBJECT ${DEP_JSON_SRC})
set_src(DEP_MD5_SRC GLOB src/engine/external/md5 md5.c md5.h)
add_library(md5 EXCLUDE_FROM_ALL OBJECT ${DEP_MD5_SRC})
list(APPEND TARGETS_DEP json md5)
set(DEP_JSON $<TARGET_OBJECTS:json>)
set(DEP_MD5)
if(NOT CRYPTO_FOUND)
set(DEP_MD5 $<TARGET_OBJECTS:md5>)
endif()
########################################################################
# RUST
########################################################################
set_glob(RUST_BASE GLOB_RECURSE "rs;toml" src/base
Cargo.toml
color.rs
lib.rs
rust.rs
)
set_glob(RUST_ENGINE_INTERFACE GLOB "rs;toml" src/engine
Cargo.toml
console.rs
lib.rs
)
set_glob(RUST_ENGINE_SHARED GLOB_RECURSE "rs;toml" src/engine/shared
Cargo.toml
build.rs
config.rs
lib.rs
rust_version.rs
)
set_src(RUST_BRIDGE_SHARED GLOB_RECURSE src/rust-bridge
cpp/console.cpp
cpp/console.h
engine/shared/rust_version.cpp
engine/shared/rust_version.h
)
set_glob(RUST_MASTERSRV GLOB "rs;toml" src/mastersrv/src
addr.rs
locations.rs
main.rs
)
add_library(rust-bridge-shared EXCLUDE_FROM_ALL OBJECT ${RUST_BRIDGE_SHARED})
list(APPEND TARGETS_OWN rust-bridge-shared)
set(CARGO_BUILD_DIR "")
set(CARGO_BUILD ${CMAKE_COMMAND} -E env CARGO_TARGET_DIR=${PROJECT_BINARY_DIR} DDNET_TEST_NO_LINK=1 ${RUST_CARGO} build)
set(CARGO_TEST ${CMAKE_COMMAND} -E env CARGO_TARGET_DIR=${PROJECT_BINARY_DIR} ${RUST_CARGO} test)
if(MSVC)
list(INSERT CARGO_BUILD 0 ${CMAKE_COMMAND} -E env $<$<CONFIG:Debug>:CFLAGS=/MTd> $<$<CONFIG:Debug>:CXXFLAGS=/MTd>)
list(INSERT CARGO_TEST 0 ${CMAKE_COMMAND} -E env RUSTFLAGS=-Ctarget-feature=+crt-static)
endif()
if(RUST_NIGHTLY)
list(APPEND CARGO_BUILD -Z build-std=std,panic_abort)
endif()
if(NOT CMAKE_OSX_ARCHITECTURES AND (DEFINED CMAKE_RUST_COMPILER_TARGET OR RUST_NIGHTLY))
if(DEFINED CMAKE_RUST_COMPILER_TARGET)
list(APPEND CARGO_TEST --target ${CMAKE_RUST_COMPILER_TARGET})
set(RUST_TARGET ${CMAKE_RUST_COMPILER_TARGET})
else()
set(RUST_TARGET ${RUST_TARGET_HOST})
endif()
list(APPEND CARGO_BUILD --target ${RUST_TARGET})
set(CARGO_BUILD_DIR "${RUST_TARGET}/")
endif()
set(CARGO_BUILD_DIR_DEBUG "${CARGO_BUILD_DIR}debug")
set(CARGO_BUILD_DIR_RELEASE "${CARGO_BUILD_DIR}release")
if(GENERATOR_IS_MULTI_CONFIG)
if(CMAKE_VERSION VERSION_LESS 3.20)
message(SEND_ERROR "Multi-config generators only supported from CMake 3.20 and up")
else()
set(CARGO_BUILD_DIR "${CARGO_BUILD_DIR}$<$<CONFIG:Debug>:debug>$<$<NOT:$<CONFIG:Debug>>:release>")
endif()
else()
if(CMAKE_BUILD_TYPE STREQUAL Debug)
set(CARGO_BUILD_DIR "${CARGO_BUILD_DIR_DEBUG}")
else()
set(CARGO_BUILD_DIR "${CARGO_BUILD_DIR_RELEASE}")
endif()
endif()
list(APPEND CARGO_BUILD $<$<NOT:$<CONFIG:Debug>>:--release>)
if(CMAKE_OSX_ARCHITECTURES)
set(RUST_OSX_ARCHITECTURES)
foreach(arch ${CMAKE_OSX_ARCHITECTURES})
if(${arch} STREQUAL arm64)
list(APPEND RUST_OSX_ARCHITECTURES aarch64-apple-darwin)
elseif(${arch} STREQUAL x86_64)
list(APPEND RUST_OSX_ARCHITECTURES x86_64-apple-darwin)
else()
message(SEND_ERROR "CMAKE_OSX_ARCHITECTURES' architecture ${arch} unknown, can't build Rust code (known: arm64, x86_64)")
endif()
endforeach()
endif()
set(RUST_SRC
${RUST_BASE}
${RUST_ENGINE_INTERFACE}
${RUST_ENGINE_SHARED}
Cargo.toml
Cargo.lock
)
set(RUST_TARGETS engine_shared)
if(NOT CMAKE_OSX_ARCHITECTURES)
set(RUST_OUTPUTS)
foreach(rust_target ${RUST_TARGETS})
set(LIBRARY_NAME "${CMAKE_STATIC_LIBRARY_PREFIX}ddnet_${rust_target}${CMAKE_STATIC_LIBRARY_SUFFIX}")
add_library(rust_${rust_target} STATIC IMPORTED GLOBAL)
add_custom_target(rust_${rust_target}_target DEPENDS "${PROJECT_BINARY_DIR}/${CARGO_BUILD_DIR}/${LIBRARY_NAME}")
add_dependencies(rust_${rust_target} rust_${rust_target}_target)
set_target_properties(rust_${rust_target} PROPERTIES
IMPORTED_LOCATION "${PROJECT_BINARY_DIR}/${CARGO_BUILD_DIR_RELEASE}/${LIBRARY_NAME}"
IMPORTED_LOCATION_DEBUG "${PROJECT_BINARY_DIR}/${CARGO_BUILD_DIR_DEBUG}/${LIBRARY_NAME}"
)
list(APPEND RUST_OUTPUTS "${PROJECT_BINARY_DIR}/${CARGO_BUILD_DIR}/${LIBRARY_NAME}")
endforeach()
add_custom_command(
OUTPUT ${RUST_OUTPUTS}
COMMAND ${CARGO_BUILD}
WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
USES_TERMINAL
DEPENDS ${RUST_SRC}
)
else()
foreach(rust_target ${RUST_TARGETS})
set(LIBRARY_NAME "${CMAKE_STATIC_LIBRARY_PREFIX}ddnet_${rust_target}${CMAKE_STATIC_LIBRARY_SUFFIX}")
add_library(rust_${rust_target} STATIC IMPORTED GLOBAL)
set_target_properties(rust_${rust_target} PROPERTIES
IMPORTED_LOCATION "${PROJECT_BINARY_DIR}/${CARGO_BUILD_DIR_RELEASE}/${LIBRARY_NAME}"
IMPORTED_LOCATION_DEBUG "${PROJECT_BINARY_DIR}/${CARGO_BUILD_DIR_DEBUG}/${LIBRARY_NAME}"
)
add_custom_target(rust_${rust_target}_target DEPENDS "${PROJECT_BINARY_DIR}/${CARGO_BUILD_DIR}/${LIBRARY_NAME}")
add_dependencies(rust_${rust_target} rust_${rust_target}_target)
set(ARCH_LIBRARIES)
foreach(arch ${RUST_OSX_ARCHITECTURES})
list(APPEND ARCH_LIBRARIES "${PROJECT_BINARY_DIR}/${arch}/${CARGO_BUILD_DIR}/${LIBRARY_NAME}")
endforeach()
add_custom_command(
OUTPUT "${PROJECT_BINARY_DIR}/${CARGO_BUILD_DIR}/${LIBRARY_NAME}"
COMMAND lipo ${ARCH_LIBRARIES} -create -output "${PROJECT_BINARY_DIR}/${CARGO_BUILD_DIR}/${LIBRARY_NAME}"
DEPENDS ${ARCH_LIBRARIES}
)
endforeach()
foreach(arch ${RUST_OSX_ARCHITECTURES})
set(RUST_OUTPUTS)
foreach(rust_target ${RUST_TARGETS})
set(LIBRARY_NAME "${CMAKE_STATIC_LIBRARY_PREFIX}ddnet_${rust_target}${CMAKE_STATIC_LIBRARY_SUFFIX}")
list(APPEND RUST_OUTPUTS "${PROJECT_BINARY_DIR}/${arch}/${CARGO_BUILD_DIR}/${LIBRARY_NAME}")
endforeach()
add_custom_command(
OUTPUT ${RUST_OUTPUTS}
COMMAND ${CARGO_BUILD} --target=${arch}
WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
USES_TERMINAL
DEPENDS ${RUST_SRC}
)