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project(Eigen)
cmake_minimum_required(VERSION 2.6.2)
# automatically parse the version number
file(READ "${CMAKE_SOURCE_DIR}/Eigen/src/Core/util/Macros.h" _eigen2_version_header LIMIT 5000 OFFSET 1000)
string(REGEX MATCH "define *EIGEN_WORLD_VERSION ([0-9]*)" _eigen2_world_version_match "${_eigen2_version_header}")
set(EIGEN2_WORLD_VERSION "${CMAKE_MATCH_1}")
string(REGEX MATCH "define *EIGEN_MAJOR_VERSION ([0-9]*)" _eigen2_major_version_match "${_eigen2_version_header}")
set(EIGEN2_MAJOR_VERSION "${CMAKE_MATCH_1}")
string(REGEX MATCH "define *EIGEN_MINOR_VERSION ([0-9]*)" _eigen2_minor_version_match "${_eigen2_version_header}")
set(EIGEN2_MINOR_VERSION "${CMAKE_MATCH_1}")
set(EIGEN_VERSION_NUMBER ${EIGEN2_WORLD_VERSION}.${EIGEN2_MAJOR_VERSION}.${EIGEN2_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 ${PROJECT_SOURCE_DIR}/cmake)
option(EIGEN_BUILD_TESTS "Build tests" OFF)
option(EIGEN_BUILD_DEMOS "Build demos" OFF)
if(NOT WIN32)
option(EIGEN_BUILD_LIB "Build the binary shared library" OFF)
endif(NOT WIN32)
option(EIGEN_BUILD_BTL "Build benchmark suite" OFF)
if(NOT WIN32)
option(EIGEN_BUILD_PKGCONFIG "Build pkg-config .pc file for Eigen" ON)
endif(NOT WIN32)
if(EIGEN_BUILD_LIB)
option(EIGEN_TEST_LIB "Build the unit tests using the library (disable -pedantic)" OFF)
endif(EIGEN_BUILD_LIB)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
if(CMAKE_COMPILER_IS_GNUCXX)
if(CMAKE_SYSTEM_NAME MATCHES Linux)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wnon-virtual-dtor -Wno-long-long -ansi -Wundef -Wcast-align -Wchar-subscripts -Wall -W -Wpointer-arith -Wwrite-strings -Wformat-security -fno-exceptions -fno-check-new -fno-common -fstrict-aliasing")
check_cxx_compiler_flag("-Wextra" COMPILER_SUPPORT_WEXTRA)
if(COMPILER_SUPPORT_WEXTRA)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wextra")
endif()
if(NOT EIGEN_TEST_LIB)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic")
endif(NOT EIGEN_TEST_LIB)
option(EIGEN_TEST_SSE2 "Enable/Disable SSE2 in tests/examples" OFF)
if(EIGEN_TEST_SSE2)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse2")
message("Enabling SSE2 in tests/examples")
endif(EIGEN_TEST_SSE2)
option(EIGEN_TEST_SSE3 "Enable/Disable SSE3 in tests/examples" OFF)
if(EIGEN_TEST_SSE3)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse3")
message("Enabling SSE3 in tests/examples")
endif(EIGEN_TEST_SSE3)
option(EIGEN_TEST_SSSE3 "Enable/Disable SSSE3 in tests/examples" OFF)
if(EIGEN_TEST_SSSE3)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mssse3")
message("Enabling SSSE3 in tests/examples")
endif(EIGEN_TEST_SSSE3)
option(EIGEN_TEST_ALTIVEC "Enable/Disable altivec in tests/examples" OFF)
if(EIGEN_TEST_ALTIVEC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -maltivec -mabi=altivec")
message("Enabling AltiVec in tests/examples")
endif(EIGEN_TEST_ALTIVEC)
endif(CMAKE_SYSTEM_NAME MATCHES Linux)
endif(CMAKE_COMPILER_IS_GNUCXX)
if(MSVC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ")
option(EIGEN_TEST_SSE2 "Enable/Disable SSE2 in tests/examples" OFF)
if(EIGEN_TEST_SSE2)
if(NOT CMAKE_CL_64)
# arch is not supported on 64 bit systems, SSE is enabled automatically.
set(CMAKE_CXX_FLAGS "${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(EIGEN_TEST_NO_EXPLICIT_VECTORIZATION)
include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
set(INCLUDE_INSTALL_DIR
"${CMAKE_INSTALL_PREFIX}/include/eigen2"
CACHE PATH
"The directory where we install the header files"
)
if(EIGEN_BUILD_PKGCONFIG)
configure_file(eigen2.pc.in eigen2.pc)
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/eigen2.pc
DESTINATION lib/pkgconfig
)
endif(EIGEN_BUILD_PKGCONFIG)
add_subdirectory(Eigen)
add_subdirectory(doc)
if(EIGEN_BUILD_TESTS)
include(CTest)
add_subdirectory(test)
endif(EIGEN_BUILD_TESTS)
add_subdirectory(unsupported)
if(EIGEN_BUILD_DEMOS)
add_subdirectory(demos)
endif(EIGEN_BUILD_DEMOS)
if(EIGEN_BUILD_BTL)
add_subdirectory(bench/btl)
endif(EIGEN_BUILD_BTL)
if(EIGEN_BUILD_TESTS)
ei_testing_print_summary()
endif(EIGEN_BUILD_TESTS)
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