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# - Try to find FFTW3
# Once done this will define
#
# FFTW3_FOUND - system has FFTW3
# FFTW3_INCLUDE_DIR - the FFTW3 include directory
# FFTW3_LIBRARIES - Link these to use FFTW3
# FFTW3_VERSION_STRING - Human readable version number of fftw3
# FFTW3_VERSION_MAJOR - Major version number of fftw3
# FFTW3_VERSION_MINOR - Minor version number of fftw3
# Copyright (c) 2017, Ilia Platone, <info@iliaplatone.com>
# Based on FindLibfacile by Carsten Niehaus, <cniehaus@gmx.de>
#
# Redistribution and use is allowed according to the terms of the BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
if (FFTW3_LIBRARIES)
# in cache already
set(FFTW3_FOUND TRUE)
message(STATUS "Found FFTW3: ${FFTW3_LIBRARIES}")
else (FFTW3_LIBRARIES)
find_library(FFTW3_LIBRARIES NAMES fftw3
PATHS
${_obLinkDir}
${GNUWIN32_DIR}/lib
/usr/local/lib
)
if(FFTW3_LIBRARIES)
set(FFTW3_FOUND TRUE)
else (FFTW3_LIBRARIES)
set(FFTW3_FOUND FALSE)
endif(FFTW3_LIBRARIES)
if (FFTW3_FOUND)
if (NOT FFTW3_FIND_QUIETLY)
message(STATUS "Found FFTW3: ${FFTW3_LIBRARIES}")
endif (NOT FFTW3_FIND_QUIETLY)
else (FFTW3_FOUND)
if (FFTW3_FIND_REQUIRED)
message(FATAL_ERROR "FFTW3 not found. Please install libfftw3-dev")
endif (FFTW3_FIND_REQUIRED)
endif (FFTW3_FOUND)
mark_as_advanced(FFTW3_LIBRARIES)
endif (FFTW3_LIBRARIES)
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