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authorStanislaw Halik <sthalik@misaki.pl>2016-07-31 17:52:31 +0200
committerDaMichel <mw.pub@welter-4d.de>2016-08-02 13:22:51 +0200
commitf786a5c3e89f52a457744c966cc28f5fe99ad9b4 (patch)
tree6ee517475cc183b5e3cf690326751a097e1f6a66
parent9c37cf39a9c186c2fd98db798c0a5f96ac975c5d (diff)
filter/kalman: find eigen in non-standard locations
-rw-r--r--cmake/FindEigen3.cmake81
-rw-r--r--filter-kalman/CMakeLists.txt8
2 files changed, 86 insertions, 3 deletions
diff --git a/cmake/FindEigen3.cmake b/cmake/FindEigen3.cmake
new file mode 100644
index 00000000..fc29db7e
--- /dev/null
+++ b/cmake/FindEigen3.cmake
@@ -0,0 +1,81 @@
+# - 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, <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(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)
+
diff --git a/filter-kalman/CMakeLists.txt b/filter-kalman/CMakeLists.txt
index 12de11ec..1d1c6412 100644
--- a/filter-kalman/CMakeLists.txt
+++ b/filter-kalman/CMakeLists.txt
@@ -1,3 +1,5 @@
-opentrack_boilerplate(opentrack-filter-kalman)
-target_link_libraries(opentrack-filter-kalman opentrack-spline-widget)
-target_include_directories(opentrack-filter-kalman SYSTEM PUBLIC) \ No newline at end of file
+find_package(Eigen3 QUIET)
+if(EIGEN3_FOUND)
+ opentrack_boilerplate(opentrack-filter-kalman)
+ target_include_directories(opentrack-filter-kalman SYSTEM PUBLIC ${EIGEN3_INCLUDE_DIR})
+endif()