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| # - Try to find Eigen3 lib | |
| # | |
| # This module supports requiring a minimum version, e.g. you can do | |
| # find_package(Eigen3 3.1.2) | |
| # to require version 3.1.2 or newer of Eigen3. | |
| # | |
| # Once done this will define | |
| # | |
| # EIGEN3_FOUND - system has eigen lib with correct version | |
| # EIGEN3_INCLUDE_DIR - the eigen include directory | |
| # EIGEN3_VERSION - eigen version | |
| # Copyright (c) 2006, 2007 Montel Laurent, <[email protected]> | |
| # Copyright (c) 2008, 2009 Gael Guennebaud, <[email protected]> | |
| # Copyright (c) 2009 Benoit Jacob <[email protected]> | |
| # Redistribution and use is allowed according to the terms of the 2-clause BSD license. | |
| if(NOT Eigen3_FIND_VERSION) | |
| if(NOT Eigen3_FIND_VERSION_MAJOR) | |
| set(Eigen3_FIND_VERSION_MAJOR 2) | |
| endif(NOT Eigen3_FIND_VERSION_MAJOR) | |
| if(NOT Eigen3_FIND_VERSION_MINOR) | |
| set(Eigen3_FIND_VERSION_MINOR 91) | |
| endif(NOT Eigen3_FIND_VERSION_MINOR) | |
| if(NOT Eigen3_FIND_VERSION_PATCH) | |
| set(Eigen3_FIND_VERSION_PATCH 0) | |
| endif(NOT Eigen3_FIND_VERSION_PATCH) | |
| set(Eigen3_FIND_VERSION | |
| "${Eigen3_FIND_VERSION_MAJOR}.${Eigen3_FIND_VERSION_MINOR}.${Eigen3_FIND_VERSION_PATCH}") | |
| endif(NOT Eigen3_FIND_VERSION) | |
| macro(_eigen3_check_version) | |
| file(READ "${EIGEN3_INCLUDE_DIR}/Eigen/src/Core/util/Macros.h" _eigen3_version_header) | |
| string(REGEX MATCH "define[ \t]+EIGEN_WORLD_VERSION[ \t]+([0-9]+)" _eigen3_world_version_match | |
| "${_eigen3_version_header}") | |
| set(EIGEN3_WORLD_VERSION "${CMAKE_MATCH_1}") | |
| string(REGEX MATCH "define[ \t]+EIGEN_MAJOR_VERSION[ \t]+([0-9]+)" _eigen3_major_version_match | |
| "${_eigen3_version_header}") | |
| set(EIGEN3_MAJOR_VERSION "${CMAKE_MATCH_1}") | |
| string(REGEX MATCH "define[ \t]+EIGEN_MINOR_VERSION[ \t]+([0-9]+)" _eigen3_minor_version_match | |
| "${_eigen3_version_header}") | |
| set(EIGEN3_MINOR_VERSION "${CMAKE_MATCH_1}") | |
| set(EIGEN3_VERSION ${EIGEN3_WORLD_VERSION}.${EIGEN3_MAJOR_VERSION}.${EIGEN3_MINOR_VERSION}) | |
| if(${EIGEN3_VERSION} VERSION_LESS ${Eigen3_FIND_VERSION}) | |
| set(EIGEN3_VERSION_OK FALSE) | |
| else(${EIGEN3_VERSION} VERSION_LESS ${Eigen3_FIND_VERSION}) | |
| set(EIGEN3_VERSION_OK TRUE) | |
| endif(${EIGEN3_VERSION} VERSION_LESS ${Eigen3_FIND_VERSION}) | |
| if(NOT EIGEN3_VERSION_OK) | |
| message(STATUS "Eigen3 version ${EIGEN3_VERSION} found in ${EIGEN3_INCLUDE_DIR}, " | |
| "but at least version ${Eigen3_FIND_VERSION} is required") | |
| endif(NOT EIGEN3_VERSION_OK) | |
| endmacro(_eigen3_check_version) | |
| if(EIGEN3_INCLUDE_DIR) | |
| # in cache already | |
| _eigen3_check_version() | |
| set(EIGEN3_FOUND ${EIGEN3_VERSION_OK}) | |
| else(EIGEN3_INCLUDE_DIR) | |
| find_path( | |
| EIGEN3_INCLUDE_DIR | |
| NAMES signature_of_eigen3_matrix_library | |
| PATHS ${CMAKE_INSTALL_PREFIX}/include ${KDE4_INCLUDE_DIR} | |
| PATH_SUFFIXES eigen3 eigen) | |
| if(EIGEN3_INCLUDE_DIR) | |
| _eigen3_check_version() | |
| endif(EIGEN3_INCLUDE_DIR) | |
| include(FindPackageHandleStandardArgs) | |
| find_package_handle_standard_args(Eigen3 DEFAULT_MSG EIGEN3_INCLUDE_DIR EIGEN3_VERSION_OK) | |
| mark_as_advanced(EIGEN3_INCLUDE_DIR) | |
| endif(EIGEN3_INCLUDE_DIR) | |