matrixfurry.com
The open source OpenXR runtime
build: Add FindEigen3.cmake from upstream, to support pointing at the include dir.
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CMakeLists.txt
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CMakeLists.txt
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check_ipo_supported(RESULT HAS_IPO)
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endif()
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find_package(Eigen3 REQUIRED)
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# Redundant mention of version is required because module defaults to looking for 2.91-compatible,
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# which the config file for a 3.x says it's not compatible with.
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find_package(Eigen3 3 REQUIRED)
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find_package(Vulkan)
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find_package(EGL)
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find_package(HIDAPI)
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LICENSES/BSD-2-Clause.txt
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LICENSES/BSD-2-Clause.txt
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Copyright (c) <year> <owner>. All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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cmake/FindEigen3.cmake
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cmake/FindEigen3.cmake
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# - Try to find Eigen3 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(Eigen3 3.1.2)
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# to require version 3.1.2 or newer of Eigen3.
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#
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# Once done this will define
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#
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# EIGEN3_FOUND - system has eigen lib with correct version
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# EIGEN3_INCLUDE_DIR - the eigen include directory
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# EIGEN3_VERSION - eigen version
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#
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# and the following imported target:
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#
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# Eigen3::Eigen - The header-only Eigen library
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#
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# This module reads hints about search locations from
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# the following environment variables:
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#
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# EIGEN3_ROOT
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# EIGEN3_ROOT_DIR
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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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# Copyright (c) 2009 Benoit Jacob <jacob.benoit.1@gmail.com>
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# Redistribution and use is allowed according to the terms of the 2-clause BSD license.
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# SPDX-License-Identifier: BSD-2-Clause
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if(NOT Eigen3_FIND_VERSION)
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if(NOT Eigen3_FIND_VERSION_MAJOR)
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set(Eigen3_FIND_VERSION_MAJOR 2)
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endif()
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if(NOT Eigen3_FIND_VERSION_MINOR)
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set(Eigen3_FIND_VERSION_MINOR 91)
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endif()
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if(NOT Eigen3_FIND_VERSION_PATCH)
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set(Eigen3_FIND_VERSION_PATCH 0)
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endif()
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set(Eigen3_FIND_VERSION "${Eigen3_FIND_VERSION_MAJOR}.${Eigen3_FIND_VERSION_MINOR}.${Eigen3_FIND_VERSION_PATCH}")
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endif()
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macro(_eigen3_check_version)
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file(READ "${EIGEN3_INCLUDE_DIR}/Eigen/src/Core/util/Macros.h" _eigen3_version_header)
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string(REGEX MATCH "define[ \t]+EIGEN_WORLD_VERSION[ \t]+([0-9]+)" _eigen3_world_version_match "${_eigen3_version_header}")
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set(EIGEN3_WORLD_VERSION "${CMAKE_MATCH_1}")
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string(REGEX MATCH "define[ \t]+EIGEN_MAJOR_VERSION[ \t]+([0-9]+)" _eigen3_major_version_match "${_eigen3_version_header}")
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set(EIGEN3_MAJOR_VERSION "${CMAKE_MATCH_1}")
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string(REGEX MATCH "define[ \t]+EIGEN_MINOR_VERSION[ \t]+([0-9]+)" _eigen3_minor_version_match "${_eigen3_version_header}")
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set(EIGEN3_MINOR_VERSION "${CMAKE_MATCH_1}")
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set(EIGEN3_VERSION ${EIGEN3_WORLD_VERSION}.${EIGEN3_MAJOR_VERSION}.${EIGEN3_MINOR_VERSION})
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if(${EIGEN3_VERSION} VERSION_LESS ${Eigen3_FIND_VERSION})
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set(EIGEN3_VERSION_OK FALSE)
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else()
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set(EIGEN3_VERSION_OK TRUE)
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endif()
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if(NOT EIGEN3_VERSION_OK)
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message(STATUS "Eigen3 version ${EIGEN3_VERSION} found in ${EIGEN3_INCLUDE_DIR}, "
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"but at least version ${Eigen3_FIND_VERSION} is required")
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endif()
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endmacro()
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if (EIGEN3_INCLUDE_DIR)
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# in cache already
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_eigen3_check_version()
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set(EIGEN3_FOUND ${EIGEN3_VERSION_OK})
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set(Eigen3_FOUND ${EIGEN3_VERSION_OK})
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else ()
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# search first if an Eigen3Config.cmake is available in the system,
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# if successful this would set EIGEN3_INCLUDE_DIR and the rest of
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# the script will work as usual
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find_package(Eigen3 ${Eigen3_FIND_VERSION} NO_MODULE QUIET)
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if(NOT EIGEN3_INCLUDE_DIR)
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find_path(EIGEN3_INCLUDE_DIR NAMES signature_of_eigen3_matrix_library
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HINTS
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ENV EIGEN3_ROOT
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ENV EIGEN3_ROOT_DIR
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PATHS
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${CMAKE_INSTALL_PREFIX}/include
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${KDE4_INCLUDE_DIR}
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PATH_SUFFIXES eigen3 eigen
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)
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endif()
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if(EIGEN3_INCLUDE_DIR)
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_eigen3_check_version()
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endif()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(Eigen3 DEFAULT_MSG EIGEN3_INCLUDE_DIR EIGEN3_VERSION_OK)
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mark_as_advanced(EIGEN3_INCLUDE_DIR)
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endif()
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if(EIGEN3_FOUND AND NOT TARGET Eigen3::Eigen)
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add_library(Eigen3::Eigen INTERFACE IMPORTED)
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set_target_properties(Eigen3::Eigen PROPERTIES
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INTERFACE_INCLUDE_DIRECTORIES "${EIGEN3_INCLUDE_DIR}")
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endif()