111986Sandreas.sandberg@arm.com# - Try to find Eigen3 lib 211986Sandreas.sandberg@arm.com# 311986Sandreas.sandberg@arm.com# This module supports requiring a minimum version, e.g. you can do 411986Sandreas.sandberg@arm.com# find_package(Eigen3 3.1.2) 511986Sandreas.sandberg@arm.com# to require version 3.1.2 or newer of Eigen3. 611986Sandreas.sandberg@arm.com# 711986Sandreas.sandberg@arm.com# Once done this will define 811986Sandreas.sandberg@arm.com# 911986Sandreas.sandberg@arm.com# EIGEN3_FOUND - system has eigen lib with correct version 1011986Sandreas.sandberg@arm.com# EIGEN3_INCLUDE_DIR - the eigen include directory 1111986Sandreas.sandberg@arm.com# EIGEN3_VERSION - eigen version 1211986Sandreas.sandberg@arm.com 1311986Sandreas.sandberg@arm.com# Copyright (c) 2006, 2007 Montel Laurent, <montel@kde.org> 1411986Sandreas.sandberg@arm.com# Copyright (c) 2008, 2009 Gael Guennebaud, <g.gael@free.fr> 1511986Sandreas.sandberg@arm.com# Copyright (c) 2009 Benoit Jacob <jacob.benoit.1@gmail.com> 1611986Sandreas.sandberg@arm.com# Redistribution and use is allowed according to the terms of the 2-clause BSD license. 1711986Sandreas.sandberg@arm.com 1811986Sandreas.sandberg@arm.comif(NOT Eigen3_FIND_VERSION) 1911986Sandreas.sandberg@arm.com if(NOT Eigen3_FIND_VERSION_MAJOR) 2011986Sandreas.sandberg@arm.com set(Eigen3_FIND_VERSION_MAJOR 2) 2111986Sandreas.sandberg@arm.com endif(NOT Eigen3_FIND_VERSION_MAJOR) 2211986Sandreas.sandberg@arm.com if(NOT Eigen3_FIND_VERSION_MINOR) 2311986Sandreas.sandberg@arm.com set(Eigen3_FIND_VERSION_MINOR 91) 2411986Sandreas.sandberg@arm.com endif(NOT Eigen3_FIND_VERSION_MINOR) 2511986Sandreas.sandberg@arm.com if(NOT Eigen3_FIND_VERSION_PATCH) 2611986Sandreas.sandberg@arm.com set(Eigen3_FIND_VERSION_PATCH 0) 2711986Sandreas.sandberg@arm.com endif(NOT Eigen3_FIND_VERSION_PATCH) 2811986Sandreas.sandberg@arm.com 2911986Sandreas.sandberg@arm.com set(Eigen3_FIND_VERSION "${Eigen3_FIND_VERSION_MAJOR}.${Eigen3_FIND_VERSION_MINOR}.${Eigen3_FIND_VERSION_PATCH}") 3011986Sandreas.sandberg@arm.comendif(NOT Eigen3_FIND_VERSION) 3111986Sandreas.sandberg@arm.com 3211986Sandreas.sandberg@arm.commacro(_eigen3_check_version) 3311986Sandreas.sandberg@arm.com file(READ "${EIGEN3_INCLUDE_DIR}/Eigen/src/Core/util/Macros.h" _eigen3_version_header) 3411986Sandreas.sandberg@arm.com 3511986Sandreas.sandberg@arm.com string(REGEX MATCH "define[ \t]+EIGEN_WORLD_VERSION[ \t]+([0-9]+)" _eigen3_world_version_match "${_eigen3_version_header}") 3611986Sandreas.sandberg@arm.com set(EIGEN3_WORLD_VERSION "${CMAKE_MATCH_1}") 3711986Sandreas.sandberg@arm.com string(REGEX MATCH "define[ \t]+EIGEN_MAJOR_VERSION[ \t]+([0-9]+)" _eigen3_major_version_match "${_eigen3_version_header}") 3811986Sandreas.sandberg@arm.com set(EIGEN3_MAJOR_VERSION "${CMAKE_MATCH_1}") 3911986Sandreas.sandberg@arm.com string(REGEX MATCH "define[ \t]+EIGEN_MINOR_VERSION[ \t]+([0-9]+)" _eigen3_minor_version_match "${_eigen3_version_header}") 4011986Sandreas.sandberg@arm.com set(EIGEN3_MINOR_VERSION "${CMAKE_MATCH_1}") 4111986Sandreas.sandberg@arm.com 4211986Sandreas.sandberg@arm.com set(EIGEN3_VERSION ${EIGEN3_WORLD_VERSION}.${EIGEN3_MAJOR_VERSION}.${EIGEN3_MINOR_VERSION}) 4311986Sandreas.sandberg@arm.com if(${EIGEN3_VERSION} VERSION_LESS ${Eigen3_FIND_VERSION}) 4411986Sandreas.sandberg@arm.com set(EIGEN3_VERSION_OK FALSE) 4511986Sandreas.sandberg@arm.com else(${EIGEN3_VERSION} VERSION_LESS ${Eigen3_FIND_VERSION}) 4611986Sandreas.sandberg@arm.com set(EIGEN3_VERSION_OK TRUE) 4711986Sandreas.sandberg@arm.com endif(${EIGEN3_VERSION} VERSION_LESS ${Eigen3_FIND_VERSION}) 4811986Sandreas.sandberg@arm.com 4911986Sandreas.sandberg@arm.com if(NOT EIGEN3_VERSION_OK) 5011986Sandreas.sandberg@arm.com 5111986Sandreas.sandberg@arm.com message(STATUS "Eigen3 version ${EIGEN3_VERSION} found in ${EIGEN3_INCLUDE_DIR}, " 5211986Sandreas.sandberg@arm.com "but at least version ${Eigen3_FIND_VERSION} is required") 5311986Sandreas.sandberg@arm.com endif(NOT EIGEN3_VERSION_OK) 5411986Sandreas.sandberg@arm.comendmacro(_eigen3_check_version) 5511986Sandreas.sandberg@arm.com 5611986Sandreas.sandberg@arm.comif (EIGEN3_INCLUDE_DIR) 5711986Sandreas.sandberg@arm.com 5811986Sandreas.sandberg@arm.com # in cache already 5911986Sandreas.sandberg@arm.com _eigen3_check_version() 6011986Sandreas.sandberg@arm.com set(EIGEN3_FOUND ${EIGEN3_VERSION_OK}) 6111986Sandreas.sandberg@arm.com 6211986Sandreas.sandberg@arm.comelse (EIGEN3_INCLUDE_DIR) 6311986Sandreas.sandberg@arm.com 6411986Sandreas.sandberg@arm.com find_path(EIGEN3_INCLUDE_DIR NAMES signature_of_eigen3_matrix_library 6511986Sandreas.sandberg@arm.com PATHS 6611986Sandreas.sandberg@arm.com ${CMAKE_INSTALL_PREFIX}/include 6711986Sandreas.sandberg@arm.com ${KDE4_INCLUDE_DIR} 6811986Sandreas.sandberg@arm.com PATH_SUFFIXES eigen3 eigen 6911986Sandreas.sandberg@arm.com ) 7011986Sandreas.sandberg@arm.com 7111986Sandreas.sandberg@arm.com if(EIGEN3_INCLUDE_DIR) 7211986Sandreas.sandberg@arm.com _eigen3_check_version() 7311986Sandreas.sandberg@arm.com endif(EIGEN3_INCLUDE_DIR) 7411986Sandreas.sandberg@arm.com 7511986Sandreas.sandberg@arm.com include(FindPackageHandleStandardArgs) 7611986Sandreas.sandberg@arm.com find_package_handle_standard_args(Eigen3 DEFAULT_MSG EIGEN3_INCLUDE_DIR EIGEN3_VERSION_OK) 7711986Sandreas.sandberg@arm.com 7811986Sandreas.sandberg@arm.com mark_as_advanced(EIGEN3_INCLUDE_DIR) 7911986Sandreas.sandberg@arm.com 8011986Sandreas.sandberg@arm.comendif(EIGEN3_INCLUDE_DIR) 8111986Sandreas.sandberg@arm.com 82