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# - Try to find Eigen2 lib |
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# |
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# This module supports requiring a minimum version, e.g. you can do |
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# find_package(Eigen2 2.0.3) |
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# to require version 2.0.3 to newer of Eigen2. |
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# |
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# Once done this will define |
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# |
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# EIGEN2_FOUND - system has eigen lib with correct version |
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# EIGEN2_INCLUDE_DIR - the eigen include directory |
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# EIGEN2_VERSION - eigen version |
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|
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# Copyright (c) 2006, 2007 Montel Laurent, <montel@kde.org> |
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# Copyright (c) 2008, 2009 Gael Guennebaud, <g.gael@free.fr> |
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# Redistribution and use is allowed according to the terms of the BSD license. |
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|
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if(NOT Eigen2_FIND_VERSION) |
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if(NOT Eigen2_FIND_VERSION_MAJOR) |
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set(Eigen2_FIND_VERSION_MAJOR 2) |
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endif(NOT Eigen2_FIND_VERSION_MAJOR) |
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if(NOT Eigen2_FIND_VERSION_MINOR) |
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set(Eigen2_FIND_VERSION_MINOR 0) |
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endif(NOT Eigen2_FIND_VERSION_MINOR) |
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if(NOT Eigen2_FIND_VERSION_PATCH) |
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set(Eigen2_FIND_VERSION_PATCH 0) |
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endif(NOT Eigen2_FIND_VERSION_PATCH) |
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|
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set(Eigen2_FIND_VERSION "${Eigen2_FIND_VERSION_MAJOR}.${Eigen2_FIND_VERSION_MINOR}.${Eigen2_FIND_VERSION_PATCH}") |
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endif(NOT Eigen2_FIND_VERSION) |
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|
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macro(_eigen2_check_version) |
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file(READ "${EIGEN2_INCLUDE_DIR}/Eigen/src/Core/util/Macros.h" _eigen2_version_header) |
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|
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string(REGEX MATCH "define[ \t]+EIGEN_WORLD_VERSION[ \t]+([0-9]+)" _eigen2_world_version_match "${_eigen2_version_header}") |
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set(EIGEN2_WORLD_VERSION "${CMAKE_MATCH_1}") |
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string(REGEX MATCH "define[ \t]+EIGEN_MAJOR_VERSION[ \t]+([0-9]+)" _eigen2_major_version_match "${_eigen2_version_header}") |
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set(EIGEN2_MAJOR_VERSION "${CMAKE_MATCH_1}") |
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string(REGEX MATCH "define[ \t]+EIGEN_MINOR_VERSION[ \t]+([0-9]+)" _eigen2_minor_version_match "${_eigen2_version_header}") |
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set(EIGEN2_MINOR_VERSION "${CMAKE_MATCH_1}") |
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|
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set(EIGEN2_VERSION ${EIGEN2_WORLD_VERSION}.${EIGEN2_MAJOR_VERSION}.${EIGEN2_MINOR_VERSION}) |
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if(${EIGEN2_VERSION} VERSION_LESS ${Eigen2_FIND_VERSION}) |
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set(EIGEN2_VERSION_OK FALSE) |
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else(${EIGEN2_VERSION} VERSION_LESS ${Eigen2_FIND_VERSION}) |
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set(EIGEN2_VERSION_OK TRUE) |
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endif(${EIGEN2_VERSION} VERSION_LESS ${Eigen2_FIND_VERSION}) |
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|
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if(NOT EIGEN2_VERSION_OK) |
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|
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message(STATUS "Eigen2 version ${EIGEN2_VERSION} found in ${EIGEN2_INCLUDE_DIR}, " |
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"but at least version ${Eigen2_FIND_VERSION} is required") |
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endif(NOT EIGEN2_VERSION_OK) |
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endmacro(_eigen2_check_version) |
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|
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if (EIGEN2_INCLUDE_DIR) |
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|
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# in cache already |
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_eigen2_check_version() |
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set(EIGEN2_FOUND ${EIGEN2_VERSION_OK}) |
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|
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else (EIGEN2_INCLUDE_DIR) |
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|
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find_path(EIGEN2_INCLUDE_DIR NAMES Eigen/Core |
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PATHS |
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${INCLUDE_INSTALL_DIR} |
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${KDE4_INCLUDE_DIR} |
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PATH_SUFFIXES eigen2 |
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) |
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|
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if(EIGEN2_INCLUDE_DIR) |
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_eigen2_check_version() |
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endif(EIGEN2_INCLUDE_DIR) |
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|
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include(FindPackageHandleStandardArgs) |
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find_package_handle_standard_args(Eigen2 DEFAULT_MSG EIGEN2_INCLUDE_DIR EIGEN2_VERSION_OK) |
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|
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mark_as_advanced(EIGEN2_INCLUDE_DIR) |
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|
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endif(EIGEN2_INCLUDE_DIR) |
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