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
|
# Copyright (c) 2019 ETH Zurich, Simon Frasch
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. Neither the name of the copyright holder nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#.rst:
# FindFFTW
# -----------
#
# This module searches for the fftw3 library.
#
# The following variables are set
#
# ::
#
# FFTW_FOUND - True if double precision fftw library is found
# FFTW_FLOAT_FOUND - True if single precision fftw library is found
# FFTW_LIBRARIES - The required libraries
# FFTW_INCLUDE_DIRS - The required include directory
#
# The following import target is created
#
# ::
#
# FFTW::FFTW
# set paths to look for library
set(_FFTW_PATHS ${FFTW_ROOT} $ENV{FFTW_ROOT})
set(_FFTW_INCLUDE_PATHS)
set(_FFTW_DEFAULT_PATH_SWITCH)
if(_FFTW_PATHS)
# disable default paths if ROOT is set
set(_FFTW_DEFAULT_PATH_SWITCH NO_DEFAULT_PATH)
else()
# try to detect location with pkgconfig
find_package(PkgConfig QUIET)
if(PKG_CONFIG_FOUND)
pkg_check_modules(PKG_FFTW QUIET "fftw3")
endif()
set(_FFTW_PATHS ${PKG_FFTW_LIBRARY_DIRS})
set(_FFTW_INCLUDE_PATHS ${PKG_FFTW_INCLUDE_DIRS})
endif()
find_library(
FFTW_LIBRARIES
NAMES "fftw3"
HINTS ${_FFTW_PATHS}
PATH_SUFFIXES "lib" "lib64"
${_FFTW_DEFAULT_PATH_SWITCH}
)
find_library(
_FFTW_FLOAT_LIBRARY
NAMES "fftw3f"
HINTS ${_FFTW_PATHS}
PATH_SUFFIXES "lib" "lib64"
${_FFTW_DEFAULT_PATH_SWITCH}
)
find_path(FFTW_INCLUDE_DIRS
NAMES "fftw3.h"
HINTS ${_FFTW_PATHS} ${_FFTW_INCLUDE_PATHS}
PATH_SUFFIXES "include" "include/fftw"
${_FFTW_DEFAULT_PATH_SWITCH}
)
# check if found
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(FFTW REQUIRED_VARS FFTW_INCLUDE_DIRS FFTW_LIBRARIES )
# check if single precision library found
if(_FFTW_FLOAT_LIBRARY AND FFTW_FOUND)
list(APPEND FFTW_LIBRARIES ${_FFTW_FLOAT_LIBRARY})
set(FFTW_FLOAT_FOUND TRUE)
else()
set(FFTW_FLOAT_FOUND FALSE)
endif()
# add target to link against
if(FFTW_FOUND)
if(NOT TARGET FFTW::FFTW)
add_library(FFTW::FFTW INTERFACE IMPORTED)
endif()
set_property(TARGET FFTW::FFTW PROPERTY INTERFACE_LINK_LIBRARIES ${FFTW_LIBRARIES})
set_property(TARGET FFTW::FFTW PROPERTY INTERFACE_INCLUDE_DIRECTORIES ${FFTW_INCLUDE_DIRS})
endif()
# prevent clutter in cache
MARK_AS_ADVANCED(FFTW_FOUND FFTW_LIBRARIES FFTW_INCLUDE_DIRS pkgcfg_lib_PKG_FFTW_fftw3 _FFTW_FLOAT_LIBRARY)
|
