mirror of
https://gitlab.com/libeigen/eigen.git
synced 2024-12-15 07:10:37 +08:00
334 lines
13 KiB
CMake
334 lines
13 KiB
CMake
project(Eigen)
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cmake_minimum_required(VERSION 2.6.2)
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# guard against in-source builds
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if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
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message(FATAL_ERROR "In-source builds not allowed. Please make a new directory (called a build directory) and run CMake from there. (you may need to remove CMakeCache.txt ")
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endif()
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# guard against bad build-type strings
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string(TOLOWER "${CMAKE_BUILD_TYPE}" cmake_build_type_tolower)
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if( NOT cmake_build_type_tolower STREQUAL "debug"
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AND NOT cmake_build_type_tolower STREQUAL "release"
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AND NOT cmake_build_type_tolower STREQUAL "relwithdebinfo")
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message(FATAL_ERROR "Unknown build type ${CMAKE_BUILD_TYPE}. Allowed values are Debug, Release, RelWithDebInfo (case-insensitive).")
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endif()
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#############################################################################
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# retrieve version infomation #
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#############################################################################
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# automatically parse the version number
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file(READ "${CMAKE_SOURCE_DIR}/Eigen/src/Core/util/Macros.h" _eigen_version_header)
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string(REGEX MATCH "define[ \t]+EIGEN_WORLD_VERSION[ \t]+([0-9]+)" _eigen_world_version_match "${_eigen_version_header}")
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set(EIGEN_WORLD_VERSION "${CMAKE_MATCH_1}")
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string(REGEX MATCH "define[ \t]+EIGEN_MAJOR_VERSION[ \t]+([0-9]+)" _eigen_major_version_match "${_eigen_version_header}")
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set(EIGEN_MAJOR_VERSION "${CMAKE_MATCH_1}")
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string(REGEX MATCH "define[ \t]+EIGEN_MINOR_VERSION[ \t]+([0-9]+)" _eigen_minor_version_match "${_eigen_version_header}")
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set(EIGEN_MINOR_VERSION "${CMAKE_MATCH_1}")
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set(EIGEN_VERSION_NUMBER ${EIGEN_WORLD_VERSION}.${EIGEN_MAJOR_VERSION}.${EIGEN_MINOR_VERSION})
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# if the mercurial program is absent, this will leave the EIGEN_HG_CHANGESET string empty,
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# but won't stop CMake.
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execute_process(COMMAND hg tip -R ${CMAKE_SOURCE_DIR} OUTPUT_VARIABLE EIGEN_HGTIP_OUTPUT)
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execute_process(COMMAND hg branch -R ${CMAKE_SOURCE_DIR} OUTPUT_VARIABLE EIGEN_BRANCH_OUTPUT)
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# if this is the default (aka development) branch, extract the mercurial changeset number from the hg tip output...
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if(EIGEN_BRANCH_OUTPUT MATCHES "default")
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string(REGEX MATCH "^changeset: *[0-9]*:([0-9;a-f]+).*" EIGEN_HG_CHANGESET_MATCH "${EIGEN_HGTIP_OUTPUT}")
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set(EIGEN_HG_CHANGESET "${CMAKE_MATCH_1}")
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endif(EIGEN_BRANCH_OUTPUT MATCHES "default")
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#...and show it next to the version number
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if(EIGEN_HG_CHANGESET)
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set(EIGEN_VERSION "${EIGEN_VERSION_NUMBER} (mercurial changeset ${EIGEN_HG_CHANGESET})")
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else(EIGEN_HG_CHANGESET)
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set(EIGEN_VERSION "${EIGEN_VERSION_NUMBER}")
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endif(EIGEN_HG_CHANGESET)
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include(CheckCXXCompilerFlag)
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set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
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#############################################################################
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# find how to link to the standard libraries #
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#############################################################################
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find_package(StandardMathLibrary)
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set(EIGEN_STANDARD_LIBRARIES_TO_LINK_TO "")
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if(NOT STANDARD_MATH_LIBRARY_FOUND)
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message(FATAL_ERROR
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"Can't link to the standard math library. Please report to the Eigen developers, telling them about your platform.")
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else()
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if(EIGEN_STANDARD_LIBRARIES_TO_LINK_TO)
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set(EIGEN_STANDARD_LIBRARIES_TO_LINK_TO "${EIGEN_STANDARD_LIBRARIES_TO_LINK_TO} ${STANDARD_MATH_LIBRARY}")
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else()
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set(EIGEN_STANDARD_LIBRARIES_TO_LINK_TO "${STANDARD_MATH_LIBRARY}")
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endif()
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endif()
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if(EIGEN_STANDARD_LIBRARIES_TO_LINK_TO)
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message(STATUS "Standard libraries to link to explicitly: ${EIGEN_STANDARD_LIBRARIES_TO_LINK_TO}")
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else()
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message(STATUS "Standard libraries to link to explicitly: none")
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endif()
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option(EIGEN_BUILD_BTL "Build benchmark suite" OFF)
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if(NOT WIN32)
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option(EIGEN_BUILD_PKGCONFIG "Build pkg-config .pc file for Eigen" ON)
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endif(NOT WIN32)
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set(CMAKE_INCLUDE_CURRENT_DIR ON)
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string(TOLOWER "${CMAKE_GENERATOR}" cmake_generator_tolower)
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if(cmake_generator_tolower MATCHES "makefile" AND NOT MSVC_IDE)
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option(EIGEN_SPLIT_LARGE_TESTS "Split large tests into smaller executables" ON)
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else()
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option(EIGEN_SPLIT_LARGE_TESTS "Split large tests into smaller executables" OFF)
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endif()
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option(EIGEN_DEFAULT_TO_ROW_MAJOR "Use row-major as default matrix storage order" OFF)
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if(EIGEN_DEFAULT_TO_ROW_MAJOR)
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add_definitions("-DEIGEN_DEFAULT_TO_ROW_MAJOR")
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endif()
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if(CMAKE_COMPILER_IS_GNUCXX)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wnon-virtual-dtor -Wno-long-long -ansi -Wundef -Wcast-align -Wchar-subscripts -Wall -W -Wpointer-arith -Wwrite-strings -Wformat-security -fexceptions -fno-check-new -fno-common -fstrict-aliasing")
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set(CMAKE_CXX_FLAGS_DEBUG "-g3")
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set(CMAKE_CXX_FLAGS_RELEASE "-g0 -O2")
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check_cxx_compiler_flag("-Wno-variadic-macros" COMPILER_SUPPORT_WNOVARIADICMACRO)
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if(COMPILER_SUPPORT_WNOVARIADICMACRO)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-variadic-macros")
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endif()
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check_cxx_compiler_flag("-Wextra" COMPILER_SUPPORT_WEXTRA)
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if(COMPILER_SUPPORT_WEXTRA)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wextra")
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endif()
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic")
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option(EIGEN_TEST_SSE2 "Enable/Disable SSE2 in tests/examples" OFF)
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if(EIGEN_TEST_SSE2)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse2")
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message("Enabling SSE2 in tests/examples")
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endif()
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option(EIGEN_TEST_SSE3 "Enable/Disable SSE3 in tests/examples" OFF)
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if(EIGEN_TEST_SSE3)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse3")
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message("Enabling SSE3 in tests/examples")
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endif()
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option(EIGEN_TEST_SSSE3 "Enable/Disable SSSE3 in tests/examples" OFF)
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if(EIGEN_TEST_SSSE3)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mssse3")
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message("Enabling SSSE3 in tests/examples")
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endif()
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option(EIGEN_TEST_SSE4_1 "Enable/Disable SSE4.1 in tests/examples" OFF)
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if(EIGEN_TEST_SSE4_1)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse4.1")
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message("Enabling SSE4.1 in tests/examples")
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endif()
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option(EIGEN_TEST_SSE4_2 "Enable/Disable SSE4.2 in tests/examples" OFF)
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if(EIGEN_TEST_SSE4_2)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse4.2")
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message("Enabling SSE4.2 in tests/examples")
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endif()
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option(EIGEN_TEST_ALTIVEC "Enable/Disable AltiVec in tests/examples" OFF)
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if(EIGEN_TEST_ALTIVEC)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -maltivec -mabi=altivec")
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message("Enabling AltiVec in tests/examples")
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endif()
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option(EIGEN_TEST_NEON "Enable/Disable Neon in tests/examples" OFF)
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if(EIGEN_TEST_NEON)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfloat-abi=hard -mfpu=neon -mcpu=cortex-a8")
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message("Enabling NEON in tests/examples")
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endif()
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check_cxx_compiler_flag("-fopenmp" COMPILER_SUPPORT_OPENMP)
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if(COMPILER_SUPPORT_OPENMP)
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option(EIGEN_TEST_OPENMP "Enable/Disable OpenMP in tests/examples" OFF)
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if(EIGEN_TEST_OPENMP)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fopenmp")
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message("Enabling OpenMP in tests/examples")
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endif()
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endif()
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endif(CMAKE_COMPILER_IS_GNUCXX)
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if(MSVC)
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# C4127 - conditional expression is constant
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# C4714 - marked as __forceinline not inlined (I failed to deactivate it selectively)
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# We can disable this warning in the unit tests since it is clear that it occurs
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# because we are oftentimes returning objects that have a destructor or may
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# throw exceptions - in particular in the unit tests we are throwing extra many
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# exceptions to cover indexing errors.
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# C4505 - unreferenced local function has been removed (impossible to deactive selectively)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHsc /wd4127 /wd4505 /wd4714")
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# replace all /Wx by /W4
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string(REGEX REPLACE "/W[0-9]" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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check_cxx_compiler_flag("/openmp" COMPILER_SUPPORT_OPENMP)
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if(COMPILER_SUPPORT_OPENMP)
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option(EIGEN_TEST_OPENMP "Enable/Disable OpenMP in tests/examples" OFF)
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if(EIGEN_TEST_OPENMP)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /openmp")
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message("Enabling OpenMP in tests/examples")
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endif()
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endif()
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option(EIGEN_TEST_SSE2 "Enable/Disable SSE2 in tests/examples" OFF)
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if(EIGEN_TEST_SSE2)
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if(NOT CMAKE_CL_64)
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# arch is not supported on 64 bit systems, SSE is enabled automatically.
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /arch:SSE2")
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endif(NOT CMAKE_CL_64)
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message("Enabling SSE2 in tests/examples")
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endif(EIGEN_TEST_SSE2)
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endif(MSVC)
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option(EIGEN_TEST_NO_EXPLICIT_VECTORIZATION "Disable explicit vectorization in tests/examples" OFF)
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option(EIGEN_TEST_X87 "Force using X87 instructions. Implies no vectorization." OFF)
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if(EIGEN_TEST_X87)
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set(EIGEN_TEST_NO_EXPLICIT_VECTORIZATION ON)
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if(CMAKE_COMPILER_IS_GNUCXX)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfpmath=387")
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message("Forcing use of x87 instructions in tests/examples")
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else()
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message("EIGEN_TEST_X87 ignored on your compiler")
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endif()
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endif()
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if(EIGEN_TEST_NO_EXPLICIT_VECTORIZATION)
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add_definitions(-DEIGEN_DONT_VECTORIZE=1)
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message("Disabling vectorization in tests/examples")
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endif()
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option(EIGEN_TEST_NO_EXPLICIT_ALIGNMENT "Disable explicit alignment (hence vectorization) in tests/examples" OFF)
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if(EIGEN_TEST_NO_EXPLICIT_ALIGNMENT)
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add_definitions(-DEIGEN_DONT_ALIGN=1)
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message("Disabling alignment in tests/examples")
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endif()
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option(EIGEN_TEST_C++0x "Enables all C++0x features." OFF)
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include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
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# the user modifiable install path for header files
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set(EIGEN_INCLUDE_INSTALL_DIR ${EIGEN_INCLUDE_INSTALL_DIR} CACHE PATH "The directory where we install the header files (optional)")
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# set the internal install path for header files which depends on wether the user modifiable
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# EIGEN_INCLUDE_INSTALL_DIR has been set by the user or not.
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if(EIGEN_INCLUDE_INSTALL_DIR)
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set(INCLUDE_INSTALL_DIR
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${EIGEN_INCLUDE_INSTALL_DIR}
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CACHE INTERNAL
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"The directory where we install the header files (internal)"
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)
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else()
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set(INCLUDE_INSTALL_DIR
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"${CMAKE_INSTALL_PREFIX}/include/eigen3"
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CACHE INTERNAL
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"The directory where we install the header files (internal)"
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)
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endif()
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# similar to set_target_properties but append the property instead of overwriting it
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macro(ei_add_target_property target prop value)
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get_target_property(previous ${target} ${prop})
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# if the property wasn't previously set, ${previous} is now "previous-NOTFOUND" which cmake allows catching with plain if()
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if(NOT previous)
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set(previous "")
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endif(NOT previous)
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set_target_properties(${target} PROPERTIES ${prop} "${previous} ${value}")
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endmacro(ei_add_target_property)
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install(FILES
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signature_of_eigen3_matrix_library
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DESTINATION ${INCLUDE_INSTALL_DIR} COMPONENT Devel
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)
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if(EIGEN_BUILD_PKGCONFIG)
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configure_file(eigen3.pc.in eigen3.pc)
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/eigen3.pc
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DESTINATION share/pkgconfig
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)
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endif(EIGEN_BUILD_PKGCONFIG)
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add_subdirectory(Eigen)
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add_subdirectory(doc EXCLUDE_FROM_ALL)
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include(CTest)
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enable_testing() # must be called from the root CMakeLists, see man page
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include(EigenTesting)
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ei_init_testing()
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if(EIGEN_LEAVE_TEST_IN_ALL_TARGET)
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add_subdirectory(test) # can't do EXCLUDE_FROM_ALL here, breaks CTest
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else()
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add_subdirectory(test EXCLUDE_FROM_ALL)
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endif()
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add_subdirectory(unsupported)
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add_subdirectory(demos EXCLUDE_FROM_ALL)
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add_subdirectory(blas EXCLUDE_FROM_ALL)
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# must be after test and unsupported, for configuring buildtests.in
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add_subdirectory(scripts EXCLUDE_FROM_ALL)
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# TODO: consider also replacing EIGEN_BUILD_BTL by a custom target "make btl"?
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if(EIGEN_BUILD_BTL)
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add_subdirectory(bench/btl EXCLUDE_FROM_ALL)
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endif(EIGEN_BUILD_BTL)
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ei_testing_print_summary()
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message("")
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message("Configured Eigen ${EIGEN_VERSION_NUMBER}")
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message("")
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if(cmake_generator_tolower MATCHES "makefile")
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message("Some things you can do now:")
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message("--------------+----------------------------------------------------------------")
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message("Command | Description")
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message("--------------+----------------------------------------------------------------")
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message("make install | Install to ${CMAKE_INSTALL_PREFIX}. To change that:")
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message(" | cmake . -DCMAKE_INSTALL_PREFIX=yourpath")
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message(" | Eigen headers will then be installed to:")
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message(" | ${INCLUDE_INSTALL_DIR}")
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message(" | To install Eigen headers to a separate location, do:")
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message(" | cmake . -DEIGEN_INCLUDE_INSTALL_DIR=yourpath")
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message("make doc | Generate the API documentation, requires Doxygen & LaTeX")
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message("make check | Build and run the unit-tests. Read this page:")
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message(" | http://eigen.tuxfamily.org/index.php?title=Tests")
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message("make blas | Build BLAS library (not the same thing as Eigen)")
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message("--------------+----------------------------------------------------------------")
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else()
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message("To build/run the unit tests, read this page:")
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message(" http://eigen.tuxfamily.org/index.php?title=Tests")
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endif()
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message("")
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