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