1# ################################################################ 2# Copyright (c) 2016-present, Yann Collet, Facebook, Inc. 3# All rights reserved. 4# 5# This source code is licensed under both the BSD-style license (found in the 6# LICENSE file in the root directory of this source tree) and the GPLv2 (found 7# in the COPYING file in the root directory of this source tree). 8# ################################################################ 9 10cmake_minimum_required(VERSION 2.8.12 FATAL_ERROR) 11 12# As of 2018-12-26 ZSTD has been validated to build with cmake version 3.13.2 new policies. 13# Set and use the newest cmake policies that are validated to work 14set(ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION "3") 15set(ZSTD_MAX_VALIDATED_CMAKE_MINOR_VERSION "13") #Policies never changed at PATCH level 16if("${CMAKE_MAJOR_VERSION}" LESS 3) 17 set(ZSTD_CMAKE_POLICY_VERSION "${CMAKE_VERSION}") 18elseif( "${ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION}" EQUAL "${CMAKE_MAJOR_VERSION}" AND 19 "${ZSTD_MAX_VALIDATED_CMAKE_MINOR_VERSION}" GREATER "${CMAKE_MINOR_VERSION}") 20 set(ZSTD_CMAKE_POLICY_VERSION "${CMAKE_VERSION}") 21else() 22 set(ZSTD_CMAKE_POLICY_VERSION "${ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION}.${ZSTD_MAX_VALIDATED_CMAKE_MINOR_VERSION}.0") 23endif() 24cmake_policy(VERSION ${ZSTD_CMAKE_POLICY_VERSION}) 25 26set(CMAKE_BUILD_WITH_INSTALL_RPATH on) 27 28list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMakeModules") 29set(ZSTD_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../..") 30set(LIBRARY_DIR ${ZSTD_SOURCE_DIR}/lib) 31# Parse version 32include(GetZstdLibraryVersion) 33GetZstdLibraryVersion(${LIBRARY_DIR}/zstd.h zstd_VERSION_MAJOR zstd_VERSION_MINOR zstd_VERSION_PATCH) 34 35if( CMAKE_MAJOR_VERSION LESS 3 ) 36 ## Provide cmake 3+ behavior for older versions of cmake 37 project(zstd) 38 set(PROJECT_VERSION_MAJOR ${zstd_VERSION_MAJOR}) 39 set(PROJECT_VERSION_MINOR ${zstd_VERSION_MINOR}) 40 set(PROJECT_VERSION_PATCH ${zstd_VERSION_PATCH}) 41 set(PROJECT_VERSION "${zstd_VERSION_MAJOR}.${zstd_VERSION_MINOR}.${zstd_VERSION_PATCH}") 42 enable_language(C) # Main library is in C 43 enable_language(CXX) # Testing contributed code also utilizes CXX 44else() 45 project(zstd 46 VERSION "${zstd_VERSION_MAJOR}.${zstd_VERSION_MINOR}.${zstd_VERSION_PATCH}" 47 LANGUAGES C # Main library is in C 48 CXX # Testing contributed code also utilizes CXX 49 ) 50endif() 51message(STATUS "ZSTD VERSION: ${zstd_VERSION}") 52set(zstd_HOMEPAGE_URL "http://www.zstd.net") 53set(zstd_DESCRIPTION "Zstandard is a real-time compression algorithm, providing high compression ratios.") 54 55# Set a default build type if none was specified 56if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES) 57 message(STATUS "Setting build type to 'Release' as none was specified.") 58 set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build." FORCE) 59 # Set the possible values of build type for cmake-gui 60 set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo") 61endif() 62 63include(GNUInstallDirs) 64 65#----------------------------------------------------------------------------- 66# Add extra compilation flags 67#----------------------------------------------------------------------------- 68include(AddZstdCompilationFlags) 69ADD_ZSTD_COMPILATION_FLAGS() 70 71# Always hide XXHash symbols 72add_definitions(-DXXH_NAMESPACE=ZSTD_) 73 74#----------------------------------------------------------------------------- 75# Installation variables 76#----------------------------------------------------------------------------- 77message(STATUS "CMAKE_INSTALL_PREFIX: ${CMAKE_INSTALL_PREFIX}") 78message(STATUS "CMAKE_INSTALL_LIBDIR: ${CMAKE_INSTALL_LIBDIR}") 79 80#----------------------------------------------------------------------------- 81# Options 82#----------------------------------------------------------------------------- 83 84# Legacy support 85option(ZSTD_LEGACY_SUPPORT "LEGACY SUPPORT" OFF) 86 87if (ZSTD_LEGACY_SUPPORT) 88 message(STATUS "ZSTD_LEGACY_SUPPORT defined!") 89 add_definitions(-DZSTD_LEGACY_SUPPORT=5) 90else () 91 message(STATUS "ZSTD_LEGACY_SUPPORT not defined!") 92 add_definitions(-DZSTD_LEGACY_SUPPORT=0) 93endif () 94 95if (ANDROID) 96 set(ZSTD_MULTITHREAD_SUPPORT_DEFAULT OFF) 97else() 98 set(ZSTD_MULTITHREAD_SUPPORT_DEFAULT ON) 99endif() 100 101# Multi-threading support 102option(ZSTD_MULTITHREAD_SUPPORT "MULTITHREADING SUPPORT" ${ZSTD_MULTITHREAD_SUPPORT_DEFAULT}) 103 104if (ZSTD_MULTITHREAD_SUPPORT) 105 message(STATUS "ZSTD_MULTITHREAD_SUPPORT is enabled") 106else () 107 message(STATUS "ZSTD_MULTITHREAD_SUPPORT is disabled") 108endif () 109 110option(ZSTD_BUILD_PROGRAMS "BUILD PROGRAMS" ON) 111option(ZSTD_BUILD_CONTRIB "BUILD CONTRIB" OFF) 112 113# Respect the conventional CMake option for enabling tests if it was specified on the first configure 114if (BUILD_TESTING) 115 set(ZSTD_BUILD_TESTS_default ON) 116else() 117 set(ZSTD_BUILD_TESTS_default OFF) 118endif() 119option(ZSTD_BUILD_TESTS "BUILD TESTS" ${ZSTD_BUILD_TESTS_default}) 120if (MSVC) 121 option(ZSTD_USE_STATIC_RUNTIME "LINK TO STATIC RUN-TIME LIBRARIES" OFF) 122endif () 123 124#----------------------------------------------------------------------------- 125# External dependencies 126#----------------------------------------------------------------------------- 127if (ZSTD_MULTITHREAD_SUPPORT AND UNIX) 128 set(THREADS_PREFER_PTHREAD_FLAG ON) 129 find_package(Threads REQUIRED) 130 if(CMAKE_USE_PTHREADS_INIT) 131 set(THREADS_LIBS "${CMAKE_THREAD_LIBS_INIT}") 132 else() 133 message(SEND_ERROR "ZSTD currently does not support thread libraries other than pthreads") 134 endif() 135endif () 136 137#----------------------------------------------------------------------------- 138# Add source directories 139#----------------------------------------------------------------------------- 140add_subdirectory(lib) 141 142option(ZSTD_PROGRAMS_LINK_SHARED "PROGRAMS LINK SHARED" OFF) 143 144if (ZSTD_BUILD_PROGRAMS) 145 if (NOT ZSTD_BUILD_STATIC AND NOT ZSTD_PROGRAMS_LINK_SHARED) 146 message(SEND_ERROR "You need to build static library to build zstd CLI") 147 elseif(NOT ZSTD_BUILD_SHARED AND ZSTD_PROGRAMS_LINK_SHARED) 148 message(SEND_ERROR "You need to build shared library to build zstd CLI") 149 endif () 150 151 add_subdirectory(programs) 152endif () 153 154if (ZSTD_BUILD_TESTS) 155 enable_testing() 156 if (NOT ZSTD_BUILD_STATIC) 157 message(SEND_ERROR "You need to build static library to build tests") 158 endif () 159 160 add_subdirectory(tests) 161endif () 162 163if (ZSTD_BUILD_CONTRIB) 164 add_subdirectory(contrib) 165endif () 166 167#----------------------------------------------------------------------------- 168# Add clean-all target 169#----------------------------------------------------------------------------- 170add_custom_target(clean-all 171 COMMAND ${CMAKE_BUILD_TOOL} clean 172 COMMAND rm -rf ${CMAKE_BINARY_DIR}/ 173) 174 175#----------------------------------------------------------------------------- 176# Generate Package Config files 177# 178# This section is based on the boiler plate code from: 179# https://cmake.org/cmake/help/latest/manual/cmake-packages.7.html#creating-packages 180#----------------------------------------------------------------------------- 181include(CMakePackageConfigHelpers) 182write_basic_package_version_file( 183 "${CMAKE_CURRENT_BINARY_DIR}/zstdConfigVersion.cmake" 184 VERSION ${zstd_VERSION} 185 COMPATIBILITY SameMajorVersion 186 ) 187 188# A Package Config file that works from the build directory 189export(EXPORT zstdExports 190 FILE "${CMAKE_CURRENT_BINARY_DIR}/zstdTargets.cmake" 191 NAMESPACE zstd:: 192 ) 193configure_file(zstdConfig.cmake 194 "${CMAKE_CURRENT_BINARY_DIR}/zstdConfig.cmake" 195 COPYONLY 196 ) 197 198# A Package Config file that works from the installation directory 199set(ConfigPackageLocation ${CMAKE_INSTALL_LIBDIR}/cmake/zstd) 200install(EXPORT zstdExports 201 FILE zstdTargets.cmake 202 NAMESPACE zstd:: 203 DESTINATION ${ConfigPackageLocation} 204 ) 205install(FILES 206 zstdConfig.cmake 207 "${CMAKE_CURRENT_BINARY_DIR}/zstdConfigVersion.cmake" 208 DESTINATION ${ConfigPackageLocation} 209 ) 210