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CMakeLists.txt
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CMakeLists.txt
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# EnTT
cmake_minimum_required(VERSION 3.15.7)
# Read project version
set(ENTT_VERSION_REGEX "#define ENTT_VERSION_.*[ \t]+(.+)")
file(STRINGS "${CMAKE_CURRENT_SOURCE_DIR}/src/entt/config/version.h" ENTT_VERSION REGEX ${ENTT_VERSION_REGEX})
list(TRANSFORM ENTT_VERSION REPLACE ${ENTT_VERSION_REGEX} "\\1")
string(JOIN "." ENTT_VERSION ${ENTT_VERSION})
# Project configuration
project(
EnTT
VERSION ${ENTT_VERSION}
DESCRIPTION "Gaming meets modern C++ - a fast and reliable entity-component system (ECS) and much more"
HOMEPAGE_URL "https://github.com/skypjack/entt"
LANGUAGES C CXX
)
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE Debug)
endif()
message(VERBOSE "*")
message(VERBOSE "* ${PROJECT_NAME} v${PROJECT_VERSION} (${CMAKE_BUILD_TYPE})")
message(VERBOSE "* Copyright (c) 2017-2024 Michele Caini <michele.caini@gmail.com>")
message(VERBOSE "*")
# CMake stuff
list(INSERT CMAKE_MODULE_PATH 0 ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules)
# Compiler stuff
option(ENTT_USE_LIBCPP "Use libc++ by adding -stdlib=libc++ flag if available." OFF)
option(ENTT_USE_SANITIZER "Enable sanitizers by adding -fsanitize=address -fno-omit-frame-pointer -fsanitize=undefined flags if available." OFF)
option(ENTT_USE_CLANG_TIDY "Enable static analysis with clang-tidy" OFF)
if(ENTT_USE_LIBCPP)
if(NOT WIN32)
include(CheckCXXSourceCompiles)
include(CMakePushCheckState)
cmake_push_check_state()
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -stdlib=libc++")
check_cxx_source_compiles("
#include<type_traits>
int main() { return std::is_same_v<int, char>; }
" ENTT_HAS_LIBCPP)
cmake_pop_check_state()
endif()
if(NOT ENTT_HAS_LIBCPP)
message(VERBOSE "The option ENTT_USE_LIBCPP is set but libc++ is not available.")
endif()
endif()
if(ENTT_USE_SANITIZER)
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang|GNU")
set(ENTT_HAS_SANITIZER TRUE CACHE BOOL "" FORCE)
mark_as_advanced(ENTT_HAS_SANITIZER)
endif()
if(NOT ENTT_HAS_SANITIZER)
message(VERBOSE "The option ENTT_USE_SANITIZER is set but sanitizer support is not available.")
endif()
endif()
if(ENTT_USE_CLANG_TIDY)
find_program(ENTT_CLANG_TIDY_EXECUTABLE "clang-tidy")
if(NOT ENTT_CLANG_TIDY_EXECUTABLE)
message(VERBOSE "The option ENTT_USE_CLANG_TIDY is set but clang-tidy executable is not available.")
endif()
endif()
# Add EnTT target
option(ENTT_INCLUDE_HEADERS "Add all EnTT headers to the EnTT target." OFF)
option(ENTT_INCLUDE_NATVIS "Add EnTT natvis files to the EnTT target." OFF)
if(ENTT_INCLUDE_NATVIS)
if(MSVC)
set(ENTT_HAS_NATVIS TRUE CACHE BOOL "" FORCE)
mark_as_advanced(ENTT_HAS_NATVIS)
endif()
if(NOT ENTT_HAS_NATVIS)
message(VERBOSE "The option ENTT_INCLUDE_NATVIS is set but natvis files are not supported. They will not be added to the target.")
endif()
endif()
include(GNUInstallDirs)
add_library(EnTT INTERFACE)
add_library(EnTT::EnTT ALIAS EnTT)
target_include_directories(
EnTT
INTERFACE
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src>
$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
)
target_compile_features(EnTT INTERFACE cxx_std_17)
if(ENTT_INCLUDE_HEADERS)
target_sources(
EnTT
INTERFACE
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/config/config.h>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/config/macro.h>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/config/version.h>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/container/dense_map.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/container/dense_set.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/container/fwd.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/algorithm.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/any.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/attribute.h>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/compressed_pair.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/enum.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/family.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/fwd.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/hashed_string.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/ident.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/iterator.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/memory.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/monostate.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/tuple.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/type_info.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/type_traits.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/core/utility.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/component.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/entity.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/fwd.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/group.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/handle.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/mixin.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/helper.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/observer.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/organizer.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/registry.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/runtime_view.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/snapshot.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/sparse_set.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/storage.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/table.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entity/view.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/graph/adjacency_matrix.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/graph/dot.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/graph/flow.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/graph/fwd.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/locator/locator.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/meta/adl_pointer.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/meta/container.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/meta/context.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/meta/factory.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/meta/fwd.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/meta/meta.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/meta/node.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/meta/pointer.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/meta/policy.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/meta/range.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/meta/resolve.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/meta/template.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/meta/type_traits.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/meta/utility.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/platform/android-ndk-r17.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/poly/fwd.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/poly/poly.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/process/fwd.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/process/process.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/process/scheduler.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/resource/cache.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/resource/fwd.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/resource/loader.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/resource/resource.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/signal/delegate.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/signal/dispatcher.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/signal/emitter.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/signal/fwd.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/signal/sigh.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/entt.hpp>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/src/entt/fwd.hpp>
)
endif()
if(ENTT_HAS_NATVIS)
target_sources(
EnTT
INTERFACE
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/natvis/entt/config.natvis>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/natvis/entt/container.natvis>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/natvis/entt/core.natvis>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/natvis/entt/entity.natvis>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/natvis/entt/graph.natvis>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/natvis/entt/locator.natvis>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/natvis/entt/meta.natvis>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/natvis/entt/platform.natvis>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/natvis/entt/poly.natvis>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/natvis/entt/process.natvis>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/natvis/entt/resource.natvis>
$<BUILD_INTERFACE:${EnTT_SOURCE_DIR}/natvis/entt/signal.natvis>
)
endif()
if(ENTT_HAS_SANITIZER)
target_compile_options(EnTT INTERFACE $<$<CONFIG:Debug>:-fsanitize=address -fno-omit-frame-pointer -fsanitize=undefined>)
target_link_libraries(EnTT INTERFACE $<$<CONFIG:Debug>:-fsanitize=address -fno-omit-frame-pointer -fsanitize=undefined>)
endif()
if(ENTT_CLANG_TIDY_EXECUTABLE)
set(CMAKE_CXX_CLANG_TIDY "${ENTT_CLANG_TIDY_EXECUTABLE};--config-file=${EnTT_SOURCE_DIR}/.clang-tidy;--header-filter=${EnTT_SOURCE_DIR}/src/entt/.*;--extra-arg=/EHsc")
endif()
if(ENTT_HAS_LIBCPP)
target_compile_options(EnTT BEFORE INTERFACE -stdlib=libc++)
endif()
# Install pkg-config file
include(JoinPaths)
set(EnTT_PKGCONFIG ${CMAKE_CURRENT_BINARY_DIR}/entt.pc)
join_paths(EnTT_PKGCONFIG_INCLUDEDIR "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")
configure_file(
${EnTT_SOURCE_DIR}/cmake/in/entt.pc.in
${EnTT_PKGCONFIG}
@ONLY
)
install(
FILES ${EnTT_PKGCONFIG}
DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig
)
# Install EnTT
include(CMakePackageConfigHelpers)
install(
TARGETS EnTT
EXPORT EnTTTargets
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
)
write_basic_package_version_file(
EnTTConfigVersion.cmake
VERSION ${PROJECT_VERSION}
COMPATIBILITY AnyNewerVersion
)
configure_package_config_file(
${EnTT_SOURCE_DIR}/cmake/in/EnTTConfig.cmake.in
EnTTConfig.cmake
INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/EnTT/cmake
)
export(
EXPORT EnTTTargets
FILE ${CMAKE_CURRENT_BINARY_DIR}/EnTTTargets.cmake
NAMESPACE EnTT::
)
install(
EXPORT EnTTTargets
FILE EnTTTargets.cmake
DESTINATION ${CMAKE_INSTALL_LIBDIR}/EnTT/cmake
NAMESPACE EnTT::
)
install(
FILES
${PROJECT_BINARY_DIR}/EnTTConfig.cmake
${PROJECT_BINARY_DIR}/EnTTConfigVersion.cmake
DESTINATION ${CMAKE_INSTALL_LIBDIR}/EnTT/cmake
)
install(
DIRECTORY src/
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
FILES_MATCHING
PATTERN "*.h"
PATTERN "*.hpp"
)
export(PACKAGE EnTT)
# Tests
option(ENTT_BUILD_TESTING "Enable building tests." OFF)
if(ENTT_BUILD_TESTING)
option(ENTT_FIND_GTEST_PACKAGE "Enable finding gtest package." OFF)
option(ENTT_BUILD_BENCHMARK "Build benchmark." OFF)
option(ENTT_BUILD_EXAMPLE "Build examples." OFF)
option(ENTT_BUILD_LIB "Build lib tests." OFF)
option(ENTT_BUILD_SNAPSHOT "Build snapshot test with Cereal." OFF)
set(ENTT_ID_TYPE std::uint32_t CACHE STRING "Type of identifiers to use for the tests")
set(ENTT_CXX_STD cxx_std_17 CACHE STRING "C++ standard revision to use for the tests")
include(CTest)
enable_testing()
add_subdirectory(test)
endif()
# Tools
option(ENTT_BUILD_TOOLS "Enable building tools." OFF)
if(ENTT_BUILD_TOOLS)
add_subdirectory(tools)
endif()
# Documentation
option(ENTT_BUILD_DOCS "Enable building with documentation." OFF)
if(ENTT_BUILD_DOCS)
find_package(Doxygen 1.8)
if(DOXYGEN_FOUND)
add_subdirectory(docs)
endif()
endif()