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cmake_minimum_required(VERSION 3.2)
project(uTox LANGUAGES C)
#####################
## Project Metadata #
#####################
set(PROJECT_VERSION_MAJOR "0")
set(PROJECT_VERSION_MINOR "18")
set(PROJECT_VERSION_PATCH "1")
set(PROJECT_VERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}")
set(PROJECT_COPYRIGHT "Copyleft 2021 uTox contributors. Some rights reserved.")
string(TIMESTAMP BUILD_YEAR "%Y" UTC)
string(TIMESTAMP BUILD_MONTH "%B" UTC)
########################
# Set helper-variables #
########################
# OS
if(CYGWIN)
# Cygwin thinks it's actually Linux.
set(WIN32 TRUE)
set(UNIX FALSE)
endif()
if(WIN32)
set(WINDOWS TRUE)
elseif(APPLE)
if(CMAKE_SYSTEM_NAME MATCHES "MacOS")
set(CMAKE_OSX_DEPLOYMENT_TARGET 10.6 CACHE STRING "Minimum OS X deployment version")
set(MACOSX TRUE)
endif()
elseif(UNIX)
if(CMAKE_SYSTEM_NAME MATCHES "Linux")
set(LINUX TRUE)
elseif(CMAKE_SYSTEM_NAME MATCHES "NetBSD")
set(NETBSD TRUE)
elseif(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
set(FREEBSD TRUE)
endif()
endif()
# 32 or 64 bit
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
set(ARCH_64 TRUE)
else()
set(ARCH_64 FALSE)
endif()
#############################
# System-dependent defaults #
#############################
# Windows only compiles statically.
if (WINDOWS)
set(STATIC_DEFAULT ON)
else()
set(STATIC_DEFAULT OFF)
endif()
# Disable ASAN for macOS due to "AddressSanitizer: odr-violation: global". see #957
# Windows doesn't compile with asan enabled.
if (APPLE OR WINDOWS)
set(ASAN_DEFAULT OFF)
else()
set(ASAN_DEFAULT ON)
endif()
# ASAN causes uTox to be slower so do no use it for release builds
if (CMAKE_BUILD_TYPE MATCHES "Release")
set(ASAN_DEFAULT OFF)
endif()
###########
# Options #
###########
option(STATIC_ALL "Enable all STATIC_* options" ${STATIC_DEFAULT} )
option(STATIC_TOXCORE "Link toxcore statically" ${STATIC_DEFAULT} )
option(STATIC_DBUS "Link dbus statically" ${STATIC_DEFAULT} )
option(STATIC_FILTERAUDIO "Link filteraudio statically" ${STATIC_DEFAULT} )
option(STATIC_OPUS "Link opus statically" ${STATIC_DEFAULT} )
option(STATIC_SODIUM "Link sodium statically" ${STATIC_DEFAULT} )
option(STATIC_VPX "Link vpx statically" ${STATIC_DEFAULT} )
option(ENABLE_ASAN "Enable Address Sanitizer on debug builds" ${ASAN_DEFAULT} )
option(ENABLE_TESTS "Whether to build test binaries (currently Unix-like OSes only)" ON )
option(ENABLE_WERROR "Error on Warning, whether to put -Werror flag to the compiler" OFF)
option(ENABLE_FILTERAUDIO "Enable Filter Audio" ON )
option(ENABLE_LTO "Enable link time optimizations" ON )
#################################
# Include toolchain if required #
#################################
if(WINDOWS AND NOT CROSS_COMPILING)
include(cmake/win.cmake)
if(ARCH_64)
# Helping Cygwin out again..
set(WIN64 TRUE)
endif()
elseif(APPLE)
include(cmake/macOS.cmake)
endif()
#######################################################################
# CMake Settings
#######################################################################
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/")
# make version available in C files
configure_file(${uTox_SOURCE_DIR}/src/branding.h.in
${uTox_SOURCE_DIR}/src/branding.h)
configure_file(${uTox_SOURCE_DIR}/src/cocoa/Info.plist.in
${uTox_SOURCE_DIR}/src/cocoa/Info.plist)
configure_file(${uTox_SOURCE_DIR}/src/android/AndroidManifest.xml.in
${uTox_SOURCE_DIR}/src/android/AndroidManifest.xml)
configure_file(${uTox_SOURCE_DIR}/man/utox.1.in
${uTox_SOURCE_DIR}/man/utox.1)
if(${CMAKE_BUILD_TYPE} MATCHES Debug)
execute_process(COMMAND git describe --abbrev=8 --dirty --always --tags
OUTPUT_VARIABLE GIT_VERSION)
string(REPLACE "\n" " " GIT_VERSION ${GIT_VERSION})
endif()
#######################################################################
# C compiler flags
#######################################################################
set(CMAKE_C_STANDARD 11) # this requires at least cmake 3.1
include(CheckCCompilerFlag)
# add compiler flag for all build types
function(add_cflag flag)
string(REGEX REPLACE "[^a-zA-Z0-9_]" "_" var ${flag})
if(NOT DEFINED HAVE_C${var})
message(STATUS "checking for C compiler flag: ${flag}")
endif()
set(CMAKE_REQUIRED_QUIET TRUE)
check_c_compiler_flag("${flag}" HAVE_C${var} QUIET)
if(HAVE_C${var})
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${flag}" PARENT_SCOPE)
else()
message(STATUS "Warning: Can't find flag ${flag}")
endif()
endfunction()
# Warn on non-ISO C.
#add_cflag("-pedantic") # throws a lot of warning, quite sure we do not want this at current state.
## Add all warning flags we can.
add_cflag("-Wall")
add_cflag("-Wextra")
add_cflag("-Wpointer-arith")
add_cflag("-Wimplicit-fallthrough=5")
## Warnings we don't tolerate
add_cflag("-Werror=implicit-function-declaration")
## Warnings we don't care about
add_cflag("-Wformat=0")
add_cflag("-Wno-misleading-indentation")
## Everything Else
add_cflag("-fno-strict-aliasing")
add_cflag("-fPIC")
add_cflag("-fno-common")
## Optimization Flags
# Fix GNU stack
if(CMAKE_C_COMPILER_ID MATCHES "GNU")
# Have ld strip the symbols from Release and MinSizeRel build types.
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -Os")
set(CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL} -Os -s")
if(LINUX)
# enable Link Time Optimization on gcc (linux only currently)
# TODO someone should figure out how this works on windows, or we need to have gitlab-ci for GCC
if(ENABLE_LTO)
## -flto is a flag that needs to exist at link time as well,
# so we use some hacky save/restore to help cmake.
set(SAVE_CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")
set(CMAKE_REQUIRED_LIBRARIES "-flto")
add_cflag("-flto")
set(CMAKE_REQUIRED_LIBRARIES "${SAVE_CMAKE_REQUIRED_LIBRARIES}")
endif()
set(CMAKE_AR "gcc-ar")
set(CMAKE_RANLIB "gcc-ranlib")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-z,noexecstack")
endif()
elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")
# Disable warning for `= { 0 }` in Clang.
# Remove once they've resolved https://bugs.llvm.org//show_bug.cgi?id=21689
add_cflag("-Wno-missing-field-initializers")
# Enable Link Time Optimization on Clang
if(ENABLE_LTO)
## -flto is a flag that needs to exist at link time as well,
# so we use some hacky save/restore to help cmake.
set(SAVE_CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")
set(CMAKE_REQUIRED_LIBRARIES "-flto")
add_cflag("-flto")
set(CMAKE_REQUIRED_LIBRARIES "${SAVE_CMAKE_REQUIRED_LIBRARIES}")
endif()
# Have ld strip the symbols from Release and MinSizeRel build types. (-Oz is clang specific)
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -Os")
set(CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL} -Oz -s")
if(FREEBSD)
set(LIBRARIES ${LIBRARIES} "cxxrt")
endif()
if(NOT ENABLE_ASAN)
if(NOT APPLE)
add_cflag("-fsanitize=safe-stack")
endif()
endif()
else()
message(STATUS "Unknown compiler name: You may have to set up your compiler flags yourself.")
endif()
# set define for GIT_VERSION
if(GIT_VERSION)
add_cflag("-DGIT_VERSION='\"${GIT_VERSION}\"'")
endif()
#######################################################################
# Build options
#######################################################################
# https://github.com/google/sanitizers/wiki/AddressSanitizer
if (ENABLE_ASAN)
set(SAVE_CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")
set(CMAKE_REQUIRED_LIBRARIES "-fsanitize=address")
add_cflag("-fsanitize=address")
add_cflag("-fno-omit-frame-pointer")
set(CMAKE_REQUIRED_LIBRARIES "${SAVE_CMAKE_REQUIRED_LIBRARIES}")
endif()
if(ENABLE_WERROR)
add_cflag("-Werror")
endif()
if(STATIC_ALL)
if(UNIX)
add_cflag("-Wl -Bstatic -lopus -lopenal -lfilteraudio -Bdynamic -lrt -lm -lpthread -ldl")
else()
add_cflag("-static")
endif()
endif()
if(ENABLE_FILTERAUDIO)
add_cflag("-DAUDIO_FILTERING=1")
endif()
find_package(libtox REQUIRED)
include_directories(${LIBTOX_INCLUDE_DIRS})
set(LIBRARIES ${LIBRARIES} ${LIBTOX_LIBRARIES})
if(STATIC_ALL OR STATIC_TOXCORE OR STATIC_SODIUM OR APPLE)
find_package(libsodium REQUIRED)
include_directories(${LIBSODIUM_INCLUDE_DIRS})
set(LIBRARIES ${LIBRARIES} ${LIBSODIUM_LIBRARIES})
endif()
find_package(libvpx REQUIRED)
include_directories(${LIBVPX_INCLUDE_DIRS})
set(LIBRARIES ${LIBRARIES} ${LIBVPX_LIBRARIES})
include_directories(/usr/include/stb)
include_directories(/usr/include/minIni)
include_directories(/usr/include/qrcodegen)
# Protip, you must use a different directory for each build target...
# -DMAKE_TOOLCHAIN_FILE has no effect unless the target directory is empty
# 1.5 hours to learn this...
if(WIN32)
if (CMAKE_BUILD_TYPE STREQUAL "Release" OR CMAKE_BUILD_TYPE STREQUAL "MinSizeRel")
set(GUI_TYPE WIN32)
endif()
link_directories(${CMAKE_PREFIX_PATH}/lib)
# Windows icons
enable_language(RC)
set(WINDOWS_ICON src/windows/utox.rc)
add_subdirectory(src/windows)
elseif(APPLE)
set(GUI_TYPE MACOSX_BUNDLE)
add_definitions("-x objective-c")
add_subdirectory(src/cocoa)
elseif(UNIX)
find_package(X11 REQUIRED)
include_directories(${X11_INCLUDE_DIR})
add_subdirectory(src/xlib)
if(LINUX)
# Required for v4l (at least in the Linux static builds on Jenkins)
set(LIBRARIES ${LIBRARIES} "rt")
endif()
endif()
# Acquire 3rd party headers
find_path(STBI_INCLUDE_DIR NAMES stb_image.h stb_image_write.h PATHS third_party/stb/stb)
if((NOT STBI_INCLUDE_DIR) OR (NOT EXISTS ${STBI_INCLUDE_DIR}))
message("STBI not found")
execute_process(COMMAND git submodule update --init -- third_party/stb/stb WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
endif()
# include utoxLAYOUT
add_subdirectory(src/layout)
# include utoxUI
add_subdirectory(src/ui)
# include utoxAV
add_subdirectory(src/av)
#######################################################################
# :: uTox main
#######################################################################
add_executable(utox ${GUI_TYPE}
src/avatar.c
src/chatlog.c
src/chrono.c
src/command_funcs.c
src/commands.c
src/devices.c
src/file_transfers.c
src/filesys.c
src/flist.c
src/friend.c
src/groups.c
src/inline_video.c
src/logging.c
src/main.c
src/messages.c
src/notify.c
src/qr.c
src/screen_grab.c
src/self.c
src/settings.c
src/text.c
src/theme.c
src/theme_tables.c
src/tox.c
src/tox_callbacks.c
src/ui.c
src/ui_i18n.c
src/utox.c
src/window.c
${WINDOWS_ICON}
${APPLE_FILES}
)
target_link_libraries(utox
utoxAV
utoxNATIVE
utoxUI
${LIBRARIES}
pthread
m
stb
minIni
qrcodegen
)
set_property(TARGET utox PROPERTY C_STANDARD 11)
if(APPLE)
set_target_properties(utox PROPERTIES MACOSX_BUNDLE_INFO_PLIST "${uTox_SOURCE_DIR}/src/cocoa/Info.plist")
# check that the app is valid and when the app is static
# also check that it does not depend on external libs (system libs excepted)
install(CODE "include(BundleUtilities)
verify_app(${CMAKE_BINARY_DIR}/utox.app)
if(STATIC_ALL OR STATIC_TOXCORE)
verify_bundle_prerequisites(${CMAKE_BINARY_DIR}/utox.app RETURN_VAR INFO_VAR)
endif()"
)
# needed for packaging, so that CPack can find the app
install(TARGETS utox DESTINATION .)
# install App
install(TARGETS utox DESTINATION /Applications)
elseif(UNIX)
install(TARGETS utox
RUNTIME DESTINATION "bin"
)
endif()
# packaging
include(CPack)
###########
# Testing #
###########
if(ENABLE_TESTS)
if(UNIX)
# Tests currently only run on Unix-like OSes.
enable_testing()
add_subdirectory(tests)
endif()
endif()
#############
# Info dump #
#############
message("Build options:")
message("- CMake Module Path: ${CMAKE_MODULE_PATH}")
message("----------------------------------")
message("- Add ASAN: ${ENABLE_ASAN}")
message("- Link-Time Optimization: ${ENABLE_LTO}")
message("- Error on Warning: ${ENABLE_WERROR}")
message("- Filter Audio: ${ENABLE_FILTERAUDIO}")
message("- Static uTox: ${STATIC_ALL}")
message("- Static Toxcore: ${STATIC_TOXCORE}")
message("- Static DBus: ${STATIC_DBUS}")
message("- Static Filteraudio: ${STATIC_FILTERAUDIO}")
message("- Static Opus: ${STATIC_OPUS}")
message("- Static Sodium: ${STATIC_SODIUM}")
message("- Static VPX: ${STATIC_VPX}")
message("-- Platform Options --------------")
message("- Enable DBus: ${ENABLE_DBUS}")
message("- Enable Tests ${ENABLE_TESTS}")
message("* CMake system is '${CMAKE_SYSTEM_NAME}'")
message("* CMake build type is '${CMAKE_BUILD_TYPE}'")
message("* C Compiler is '${CMAKE_C_COMPILER}' with the following flags:")
message("* C flags for Debug: ${CMAKE_C_FLAGS_DEBUG}")
message("* C flags for Release: ${CMAKE_C_FLAGS_RELEASE}")
message("* C flags for all types: ${CMAKE_C_FLAGS}")
if(ENABLE_ASAN)
message("")
message(" TIP: You may want to set the env variable ASAN_SYMBOLIZER_PATH=/usr/bin/llvm-symbolizer for ASAN to show nicer stack traces.")
message(" See <http://clang.llvm.org/docs/AddressSanitizer.html#symbolizing-the-reports> for more details.")
message("")
endif()
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