108 lines
3.4 KiB
CMake
108 lines
3.4 KiB
CMake
|
# - 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
|
||
|
|
#
|
||
|
|
# and the following imported target:
|
||
|
|
#
|
||
|
|
# Eigen3::Eigen - The header-only Eigen library
|
||
|
|
#
|
||
|
|
# This module reads hints about search locations from
|
||
|
|
# the following environment variables:
|
||
|
|
#
|
||
|
|
# EIGEN3_ROOT
|
||
|
|
# EIGEN3_ROOT_DIR
|
||
|
|
|
||
|
|
# Copyright (c) 2006, 2007 Montel Laurent, <montel@kde.org>
|
||
|
|
# Copyright (c) 2008, 2009 Gael Guennebaud, <g.gael@free.fr>
|
||
|
|
# Copyright (c) 2009 Benoit Jacob <jacob.benoit.1@gmail.com>
|
||
|
|
# 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()
|
||
|
|
if(NOT Eigen3_FIND_VERSION_MINOR)
|
||
|
|
set(Eigen3_FIND_VERSION_MINOR 91)
|
||
|
|
endif()
|
||
|
|
if(NOT Eigen3_FIND_VERSION_PATCH)
|
||
|
|
set(Eigen3_FIND_VERSION_PATCH 0)
|
||
|
|
endif()
|
||
|
|
|
||
|
|
set(Eigen3_FIND_VERSION "${Eigen3_FIND_VERSION_MAJOR}.${Eigen3_FIND_VERSION_MINOR}.${Eigen3_FIND_VERSION_PATCH}")
|
||
|
|
endif()
|
||
|
|
|
||
|
|
macro(_eigen3_check_version)
|
||
|
|
file(READ "${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()
|
||
|
|
set(EIGEN3_VERSION_OK TRUE)
|
||
|
|
endif()
|
||
|
|
|
||
|
|
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()
|
||
|
|
endmacro()
|
||
|
|
|
||
|
|
if (EIGEN3_INCLUDE_DIR)
|
||
|
|
|
||
|
|
# in cache already
|
||
|
|
_eigen3_check_version()
|
||
|
|
set(EIGEN3_FOUND ${EIGEN3_VERSION_OK})
|
||
|
|
set(Eigen3_FOUND ${EIGEN3_VERSION_OK})
|
||
|
|
|
||
|
|
else ()
|
||
|
|
|
||
|
|
# search first if an Eigen3Config.cmake is available in the system,
|
||
|
|
# if successful this would set EIGEN3_INCLUDE_DIR and the rest of
|
||
|
|
# the script will work as usual
|
||
|
|
find_package(Eigen3 ${Eigen3_FIND_VERSION} NO_MODULE QUIET)
|
||
|
|
|
||
|
|
if(NOT EIGEN3_INCLUDE_DIR)
|
||
|
|
find_path(EIGEN3_INCLUDE_DIR NAMES signature_of_eigen3_matrix_library
|
||
|
|
HINTS
|
||
|
|
ENV EIGEN3_ROOT
|
||
|
|
ENV EIGEN3_ROOT_DIR
|
||
|
|
PATHS
|
||
|
|
${CMAKE_INSTALL_PREFIX}/include
|
||
|
|
${KDE4_INCLUDE_DIR}
|
||
|
|
PATH_SUFFIXES eigen3 eigen
|
||
|
|
)
|
||
|
|
endif()
|
||
|
|
|
||
|
|
if(EIGEN3_INCLUDE_DIR)
|
||
|
|
_eigen3_check_version()
|
||
|
|
endif()
|
||
|
|
|
||
|
|
include(FindPackageHandleStandardArgs)
|
||
|
|
find_package_handle_standard_args(Eigen3 DEFAULT_MSG EIGEN3_INCLUDE_DIR EIGEN3_VERSION_OK)
|
||
|
|
|
||
|
|
mark_as_advanced(EIGEN3_INCLUDE_DIR)
|
||
|
|
|
||
|
|
endif()
|
||
|
|
|
||
|
|
if(EIGEN3_FOUND AND NOT TARGET Eigen3::Eigen)
|
||
|
|
add_library(Eigen3::Eigen INTERFACE IMPORTED)
|
||
|
|
set_target_properties(Eigen3::Eigen PROPERTIES
|
||
|
|
INTERFACE_INCLUDE_DIRECTORIES "${EIGEN3_INCLUDE_DIR}")
|
||
|
|
endif()
|