62c0dd7aff
Based on excellent comment in #1489, the logic to set cmake policies was simplified. This will provide an easier mechanism for maintaining the conditional logic across many versions of cmake.
154 lines
5.9 KiB
CMake
154 lines
5.9 KiB
CMake
# ################################################################
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# Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
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# All rights reserved.
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#
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# This source code is licensed under both the BSD-style license (found in the
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# LICENSE file in the root directory of this source tree) and the GPLv2 (found
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# in the COPYING file in the root directory of this source tree).
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# ################################################################
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cmake_minimum_required(VERSION 2.8.9 FATAL_ERROR)
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# As of 2018-12-26 ZSTD has been validated to build with cmake version 3.13.2 new policies.
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# Set and use the newest cmake policies that are validated to work
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set(ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION "3")
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set(ZSTD_MAX_VALIDATED_CMAKE_MINOR_VERSION "13") #Policies never changed at PATCH level
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if("${CMAKE_MAJOR_VERSION}" LESS 3)
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set(ZSTD_CMAKE_POLICY_VERSION "${CMAKE_VERSION}")
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elseif( "${ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION}" EQUAL "${CMAKE_MAJOR_VERSION}" AND
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"${ZSTD_MAX_VALIDATED_CMAKE_MINOR_VERSION}" GREATER "${CMAKE_MINOR_VERSION}")
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set(ZSTD_CMAKE_POLICY_VERSION "${CMAKE_VERSION}")
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else()
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set(ZSTD_CMAKE_POLICY_VERSION "${ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION}.${ZSTD_MAX_VALIDATED_CMAKE_MINOR_VERSION}.0")
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endif()
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cmake_policy(VERSION ${ZSTD_CMAKE_POLICY_VERSION})
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list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMakeModules")
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set(ZSTD_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../..")
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set(LIBRARY_DIR ${ZSTD_SOURCE_DIR}/lib)
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# Parse version
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include(GetZstdLibraryVersion)
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GetZstdLibraryVersion(${LIBRARY_DIR}/zstd.h zstd_VERSION_MAJOR zstd_VERSION_MINOR zstd_VERSION_PATCH)
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if( CMAKE_MAJOR_VERSION LESS 3 )
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## Provide cmake 3+ behavior for older versions of cmake
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project(zstd)
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set(PROJECT_VERSION_MAJOR ${zstd_VERSION_MAJOR})
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set(PROJECT_VERSION_MINOR ${zstd_VERSION_MINOR})
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set(PROJECT_VERSION_PATCH ${zstd_VERSION_PATCH})
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set(PROJECT_VERSION "${zstd_VERSION_MAJOR}.${zstd_VERSION_MINOR}.${zstd_VERSION_PATCH}")
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enable_language(C) # Main library is in C
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enable_language(CXX) # Testing contributed code also utilizes CXX
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else()
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project(zstd
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VERSION "${zstd_VERSION_MAJOR}.${zstd_VERSION_MINOR}.${zstd_VERSION_PATCH}"
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LANGUAGES C # Main library is in C
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CXX # Testing contributed code also utilizes CXX
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)
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endif()
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message(STATUS "ZSTD VERSION: ${zstd_VERSION}")
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set(zstd_HOMEPAGE_URL "http://www.zstd.net")
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set(zstd_DESCRIPTION "Zstandard is a real-time compression algorithm, providing high compression ratios.")
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# Set a default build type if none was specified
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if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
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message(STATUS "Setting build type to 'Release' as none was specified.")
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set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build." FORCE)
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# Set the possible values of build type for cmake-gui
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set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo")
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endif()
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include(GNUInstallDirs)
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#-----------------------------------------------------------------------------
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# Add extra compilation flags
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#-----------------------------------------------------------------------------
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include(AddZstdCompilationFlags)
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ADD_ZSTD_COMPILATION_FLAGS()
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# Always hide XXHash symbols
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add_definitions(-DXXH_NAMESPACE=ZSTD_)
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#-----------------------------------------------------------------------------
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# Installation variables
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#-----------------------------------------------------------------------------
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message(STATUS "CMAKE_INSTALL_PREFIX: ${CMAKE_INSTALL_PREFIX}")
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message(STATUS "CMAKE_INSTALL_LIBDIR: ${CMAKE_INSTALL_LIBDIR}")
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#-----------------------------------------------------------------------------
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# Options
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#-----------------------------------------------------------------------------
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# Legacy support
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option(ZSTD_LEGACY_SUPPORT "LEGACY SUPPORT" OFF)
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if (ZSTD_LEGACY_SUPPORT)
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message(STATUS "ZSTD_LEGACY_SUPPORT defined!")
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add_definitions(-DZSTD_LEGACY_SUPPORT=5)
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else ()
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message(STATUS "ZSTD_LEGACY_SUPPORT not defined!")
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add_definitions(-DZSTD_LEGACY_SUPPORT=0)
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endif ()
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# Multi-threading support
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option(ZSTD_MULTITHREAD_SUPPORT "MULTITHREADING SUPPORT" ON)
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if (ZSTD_MULTITHREAD_SUPPORT)
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message(STATUS "ZSTD_MULTITHREAD_SUPPORT is enabled")
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else ()
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message(STATUS "ZSTD_MULTITHREAD_SUPPORT is disabled")
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endif ()
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option(ZSTD_BUILD_PROGRAMS "BUILD PROGRAMS" ON)
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option(ZSTD_BUILD_CONTRIB "BUILD CONTRIB" OFF)
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option(ZSTD_BUILD_TESTS "BUILD TESTS" OFF)
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if (MSVC)
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option(ZSTD_USE_STATIC_RUNTIME "LINK TO STATIC RUN-TIME LIBRARIES" OFF)
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endif ()
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#-----------------------------------------------------------------------------
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# External dependencies
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#-----------------------------------------------------------------------------
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if (ZSTD_MULTITHREAD_SUPPORT AND UNIX)
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set(THREADS_PREFER_PTHREAD_FLAG ON)
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find_package(Threads REQUIRED)
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if(CMAKE_USE_PTHREADS_INIT)
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set(THREADS_LIBS "${CMAKE_THREAD_LIBS_INIT}")
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else()
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message(SEND_ERROR "ZSTD currently does not support thread libraries other than pthreads")
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endif()
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endif ()
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#-----------------------------------------------------------------------------
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# Add source directories
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#-----------------------------------------------------------------------------
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add_subdirectory(lib)
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if (ZSTD_BUILD_PROGRAMS)
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if (NOT ZSTD_BUILD_STATIC)
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message(SEND_ERROR "You need to build static library to build zstd CLI")
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endif ()
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add_subdirectory(programs)
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endif ()
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if (ZSTD_BUILD_TESTS)
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if (NOT ZSTD_BUILD_STATIC)
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message(SEND_ERROR "You need to build static library to build tests")
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endif ()
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add_subdirectory(tests)
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endif ()
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if (ZSTD_BUILD_CONTRIB)
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add_subdirectory(contrib)
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endif ()
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#-----------------------------------------------------------------------------
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# Add clean-all target
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#-----------------------------------------------------------------------------
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add_custom_target(clean-all
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COMMAND ${CMAKE_BUILD_TOOL} clean
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COMMAND rm -rf ${CMAKE_BINARY_DIR}/
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)
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