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zstd/build/cmake/CMakeLists.txt
Victor Zhang e190e7944e Update cmake minimum requirement to 3.10 
CMake warns on the current minimum requirement (3.5). Update to 3.10.
This means support is still available for the default on Ubuntu 18.04, which
exited LTS standard in April of 2023.
[draft]
2024-12-09 10:53:38 -08:00

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CMake
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# ################################################################
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# ################################################################
cmake_minimum_required(VERSION 3.10 FATAL_ERROR)
# As of 2018-12-26 ZSTD has been validated to build with cmake version 3.13.2 new policies.
# Set and use the newest cmake policies that are validated to work
set(ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION "3")
set(ZSTD_MAX_VALIDATED_CMAKE_MINOR_VERSION "13") #Policies never changed at PATCH level
if("${ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION}" EQUAL "${CMAKE_MAJOR_VERSION}" AND
"${ZSTD_MAX_VALIDATED_CMAKE_MINOR_VERSION}" GREATER "${CMAKE_MINOR_VERSION}")
set(ZSTD_CMAKE_POLICY_VERSION "${CMAKE_VERSION}")
else()
set(ZSTD_CMAKE_POLICY_VERSION "${ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION}.${ZSTD_MAX_VALIDATED_CMAKE_MINOR_VERSION}.0")
endif()
cmake_policy(VERSION ${ZSTD_CMAKE_POLICY_VERSION})
set(CMAKE_BUILD_WITH_INSTALL_RPATH on)
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMakeModules")
set(ZSTD_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../..")
set(LIBRARY_DIR ${ZSTD_SOURCE_DIR}/lib)
# Parse version
include(GetZstdLibraryVersion)
GetZstdLibraryVersion(${LIBRARY_DIR}/zstd.h zstd_VERSION_MAJOR zstd_VERSION_MINOR zstd_VERSION_PATCH)
project(zstd
VERSION "${zstd_VERSION_MAJOR}.${zstd_VERSION_MINOR}.${zstd_VERSION_PATCH}"
LANGUAGES C # Main library is in C
ASM # And ASM
CXX # Testing contributed code also utilizes CXX
)
message(STATUS "ZSTD VERSION: ${zstd_VERSION}")
set(zstd_HOMEPAGE_URL "https://facebook.github.io/zstd")
set(zstd_DESCRIPTION "Zstandard is a real-time compression algorithm, providing high compression ratios.")
# Set a default build type if none was specified
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
message(STATUS "Setting build type to 'Release' as none was specified.")
set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build." FORCE)
# Set the possible values of build type for cmake-gui
set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo")
endif()
include(GNUInstallDirs)
#-----------------------------------------------------------------------------
# Add extra compilation flags
#-----------------------------------------------------------------------------
include(AddZstdCompilationFlags)
ADD_ZSTD_COMPILATION_FLAGS()
# Always hide XXHash symbols
add_definitions(-DXXH_NAMESPACE=ZSTD_)
#-----------------------------------------------------------------------------
# Installation variables
#-----------------------------------------------------------------------------
message(STATUS "CMAKE_INSTALL_PREFIX: ${CMAKE_INSTALL_PREFIX}")
message(STATUS "CMAKE_INSTALL_LIBDIR: ${CMAKE_INSTALL_LIBDIR}")
#-----------------------------------------------------------------------------
# Options
#-----------------------------------------------------------------------------
# Legacy support
option(ZSTD_LEGACY_SUPPORT "LEGACY SUPPORT" ON)
if (ZSTD_LEGACY_SUPPORT)
message(STATUS "ZSTD_LEGACY_SUPPORT defined!")
set(ZSTD_LEGACY_LEVEL 5 CACHE STRING "")
add_definitions(-DZSTD_LEGACY_SUPPORT=${ZSTD_LEGACY_LEVEL})
else ()
message(STATUS "ZSTD_LEGACY_SUPPORT not defined!")
add_definitions(-DZSTD_LEGACY_SUPPORT=0)
endif ()
if (ANDROID)
set(ZSTD_MULTITHREAD_SUPPORT_DEFAULT OFF)
else()
set(ZSTD_MULTITHREAD_SUPPORT_DEFAULT ON)
endif()
# Multi-threading support
option(ZSTD_MULTITHREAD_SUPPORT "MULTITHREADING SUPPORT" ${ZSTD_MULTITHREAD_SUPPORT_DEFAULT})
if (ZSTD_MULTITHREAD_SUPPORT)
message(STATUS "ZSTD_MULTITHREAD_SUPPORT is enabled")
else ()
message(STATUS "ZSTD_MULTITHREAD_SUPPORT is disabled")
endif ()
option(ZSTD_BUILD_PROGRAMS "BUILD PROGRAMS" ON)
option(ZSTD_BUILD_CONTRIB "BUILD CONTRIB" OFF)
# Respect the conventional CMake option for enabling tests if it was specified on the first configure
if (BUILD_TESTING)
set(ZSTD_BUILD_TESTS_default ON)
else()
set(ZSTD_BUILD_TESTS_default OFF)
endif()
option(ZSTD_BUILD_TESTS "BUILD TESTS" ${ZSTD_BUILD_TESTS_default})
if (MSVC)
option(ZSTD_USE_STATIC_RUNTIME "LINK TO STATIC RUN-TIME LIBRARIES" OFF)
endif ()
#-----------------------------------------------------------------------------
# External dependencies
#-----------------------------------------------------------------------------
# Define a function to handle special thread settings for HP-UX
# See https://github.com/facebook/zstd/pull/3862 for details.
function(setup_hpux_threads)
find_package(Threads)
if (NOT Threads_FOUND)
set(CMAKE_USE_PTHREADS_INIT 1 PARENT_SCOPE)
set(CMAKE_THREAD_LIBS_INIT -lpthread PARENT_SCOPE)
set(CMAKE_HAVE_THREADS_LIBRARY 1 PARENT_SCOPE)
set(Threads_FOUND TRUE PARENT_SCOPE)
endif()
endfunction()
if (ZSTD_MULTITHREAD_SUPPORT AND UNIX)
if (CMAKE_SYSTEM_NAME MATCHES "HP-UX")
setup_hpux_threads()
else()
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)
endif()
if (CMAKE_USE_PTHREADS_INIT)
set(THREADS_LIBS "${CMAKE_THREAD_LIBS_INIT}")
else()
message(SEND_ERROR "ZSTD currently does not support thread libraries other than pthreads")
endif()
endif ()
#-----------------------------------------------------------------------------
# Add source directories
#-----------------------------------------------------------------------------
add_subdirectory(lib)
option(ZSTD_PROGRAMS_LINK_SHARED "PROGRAMS LINK SHARED" OFF)
if (ZSTD_BUILD_PROGRAMS)
if (NOT ZSTD_BUILD_STATIC AND NOT ZSTD_PROGRAMS_LINK_SHARED)
message(SEND_ERROR "You need to build static library to build zstd CLI")
elseif(NOT ZSTD_BUILD_SHARED AND ZSTD_PROGRAMS_LINK_SHARED)
message(SEND_ERROR "You need to build shared library to build zstd CLI")
endif ()
add_subdirectory(programs)
endif ()
if (ZSTD_BUILD_TESTS)
enable_testing()
if (NOT ZSTD_BUILD_STATIC)
message(SEND_ERROR "You need to build static library to build tests")
endif ()
add_subdirectory(tests)
endif ()
if (ZSTD_BUILD_CONTRIB)
add_subdirectory(contrib)
endif ()
#-----------------------------------------------------------------------------
# Add clean-all target
#-----------------------------------------------------------------------------
add_custom_target(clean-all
COMMAND ${CMAKE_BUILD_TOOL} clean
COMMAND rm -rf ${CMAKE_BINARY_DIR}/
)
#-----------------------------------------------------------------------------
# Generate Package Config files
#
# This section is based on the boiler plate code from:
# https://cmake.org/cmake/help/latest/manual/cmake-packages.7.html#creating-packages
#-----------------------------------------------------------------------------
include(CMakePackageConfigHelpers)
write_basic_package_version_file(
"${CMAKE_CURRENT_BINARY_DIR}/zstdConfigVersion.cmake"
VERSION ${zstd_VERSION}
COMPATIBILITY SameMajorVersion
)
# A Package Config file that works from the build directory
export(EXPORT zstdExports
FILE "${CMAKE_CURRENT_BINARY_DIR}/zstdTargets.cmake"
NAMESPACE zstd::
)
# A Package Config file that works from the installation directory
set(ConfigPackageLocation ${CMAKE_INSTALL_LIBDIR}/cmake/zstd)
install(EXPORT zstdExports
FILE zstdTargets.cmake
NAMESPACE zstd::
DESTINATION ${ConfigPackageLocation}
)
configure_package_config_file(
zstdConfig.cmake.in
"${CMAKE_CURRENT_BINARY_DIR}/zstdConfig.cmake"
INSTALL_DESTINATION ${ConfigPackageLocation}
)
install(FILES
"${CMAKE_CURRENT_BINARY_DIR}/zstdConfig.cmake"
"${CMAKE_CURRENT_BINARY_DIR}/zstdConfigVersion.cmake"
DESTINATION ${ConfigPackageLocation}
)
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