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# This file is part of Mixxx, Digital DJ'ing software.
# Copyright (C) 2001-2020 Mixxx Development Team
# Distributed under the GNU General Public Licence (GPL) version 2 or any later
# later version. See the LICENSE file for details.
#[=======================================================================[.rst:
FindFFTW
--------
Finds the FFTW library.
Imported Targets
^^^^^^^^^^^^^^^^
This module provides the following imported targets, if found:
``FFTW::FFTW``
The FFTW library
Result Variables
^^^^^^^^^^^^^^^^
This will define the following variables:
``FFTW_FOUND``
True if the system has the FFTW library.
``FFTW_INCLUDE_DIRS``
Include directories needed to use FFTW.
``FFTW_LIBRARIES``
Libraries needed to link to FFTW.
Cache Variables
^^^^^^^^^^^^^^^
The following cache variables may also be set:
``FFTW_INCLUDE_DIR``
The directory containing ``fftw3.h``.
``FFTW_LIBRARY``
The path to the FFTW library.
#]=======================================================================]
find_path(FFTW_INCLUDE_DIR
NAMES fftw3.h
DOC "FFTW include directory")
mark_as_advanced(FFTW_INCLUDE_DIR)
find_library(FFTW_LIBRARY
NAMES fftw fftw3 fftw-3.3
DOC "FFTW library"
)
mark_as_advanced(FFTW_LIBRARY)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(
FFTW
DEFAULT_MSG
FFTW_LIBRARY
FFTW_INCLUDE_DIR
)
if(FFTW_FOUND)
set(FFTW_LIBRARIES "${FFTW_LIBRARY}")
set(FFTW_INCLUDE_DIRS "${FFTW_INCLUDE_DIR}")
if(NOT TARGET FFTW::FFTW)
add_library(FFTW::FFTW UNKNOWN IMPORTED)
set_target_properties(FFTW::FFTW
PROPERTIES
IMPORTED_LOCATION "${FFTW_LIBRARY}"
INTERFACE_INCLUDE_DIRECTORIES "${FFTW_INCLUDE_DIR}"
)
endif()
endif()
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