1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
# - 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 ${Eigen3_FIND_VERSION} is required")
endif(NOT EIGEN3_VERSION_OK)
endmacro(_eigen3_check_version)
# only probe if we haven't a path in our cache
if (NOT EIGEN3_INCLUDE_DIR)
# allow Eigen3_ROOT to be used in addition to EIGEN3_ROOT
if (Eigen3_ROOT)
set (EIGEN3_ROOT "${Eigen3_ROOT}")
endif (Eigen3_ROOT)
# if the _ROOT is specified, then look *only* there; don't allow any
# other version to be swapped in to substitute; if not specified, then
# go search usual locations
if (EIGEN3_ROOT)
# if we are given the path to a "build" tree (meaning somewhere Eigen3
# has been configured), then use the eigen3.pc file to figure out the
# name of the *real* root directory
if (EXISTS "${EIGEN3_ROOT}/CMakeCache.txt")
# get the cache entry that tells use the source tree location
set (_regex "Eigen_SOURCE_DIR:STATIC=\(.*\)")
file (STRINGS
"${EIGEN3_ROOT}/CMakeCache.txt"
EIGEN3_SOURCE_TREE
REGEX "${_regex}"
)
# trim away the key definition, be left with the value
if (EIGEN3_SOURCE_TREE)
string (REGEX REPLACE
"${_regex}"
"\\1"
EIGEN3_SOURCE_TREE
"${EIGEN3_SOURCE_TREE}"
)
# if something doesn't look as expected, abort and search in _ROOT
else ()
set (EIGEN3_SOURCE_TREE "${EIGEN3_ROOT}")
endif ()
else ()
set (EIGEN3_SOURCE_TREE "${EIGEN3_ROOT}")
endif ()
find_path (EIGEN3_INCLUDE_DIR
NAMES signature_of_eigen3_matrix_library
PATHS ${EIGEN3_SOURCE_TREE}
PATH_SUFFIXES eigen3 include/eigen3 eigen include/eigen
NO_DEFAULT_PATH
)
else (EIGEN3_ROOT)
# assume that if there is a sibling directory to our project which
# is called eigen3, there is a newer version located there, or that
# it may have been checked out next to the build directory
find_path(EIGEN3_INCLUDE_DIR
NAMES signature_of_eigen3_matrix_library
HINTS ${CMAKE_SOURCE_DIR}/../
${PROJECT_SOURCE_DIR}/../
${CMAKE_INSTALL_PREFIX}/include
${KDE4_INCLUDE_DIR}
PATH_SUFFIXES eigen3 eigen
)
endif (EIGEN3_ROOT)
endif (NOT EIGEN3_INCLUDE_DIR)
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)
|
