ref: 183610fcad977f4fead56178cf731a2e1c581e65
dir: /cmake/FindFFTW3.cmake/
# Adapted from: https://github.com/wjakob/layerlab/blob/master/cmake/FindFFTW.cmake # Copyright (c) 2015, Wenzel Jakob # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are met: # # * Redistributions of source code must retain the above copyright notice, this # list of conditions and the following disclaimer. # # * 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. # # 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 HOLDER 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. # - Find FFTW3 # Find the native FFTW3 includes and library # # Cache variables: # # FFTW3_INCLUDE_DIR - where to find fftw3.h # FFTW3_LIBRARY - Path to FFTW3 libray. # FFTW3_ROOT - Root of FFTW3 installation. # # User variables: # # FFTW3_INCLUDE_DIRS - where to find fftw3.h # FFTW3_LIBRARIES - List of libraries when using FFTW3. # FFTW3_FOUND - True if FFTW3 found. if(FFTW3_INCLUDE_DIR) # Already in cache, be silent set(FFTW3_FIND_QUIETLY TRUE) endif(FFTW3_INCLUDE_DIR) find_package(PkgConfig QUIET) pkg_check_modules(PC_FFTW3 QUIET fftw) set(FFTW3_VERSION ${PC_FFTW3_VERSION}) find_path(FFTW3_INCLUDE_DIR fftw3.h HINTS ${PC_FFTW3_INCLUDEDIR} ${PC_FFTW3_INCLUDE_DIRS} ${FFTW3_ROOT}) find_library(FFTW3_LIBRARY NAMES fftw3 HINTS ${PC_FFTW3_LIBDIR} ${PC_FFTW3_LIBRARY_DIRS} ${FFTW3_ROOT}) # handle the QUIETLY and REQUIRED arguments and set FFTW3_FOUND to TRUE if # all listed variables are TRUE include(FindPackageHandleStandardArgs) find_package_handle_standard_args(FFTW3 REQUIRED_VARS FFTW3_LIBRARY FFTW3_INCLUDE_DIR VERSION_VAR FFTW3_VERSION) if(FFTW3_FOUND) set(FFTW3_LIBRARIES ${FFTW3_LIBRARY}) set(FFTW3_INCLUDE_DIRS ${FFTW3_INCLUDE_DIR}) if(NOT TARGET FFTW3::fftw3) add_library(FFTW3::fftw3 UNKNOWN IMPORTED) set_target_properties(FFTW3::fftw3 PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${FFTW3_INCLUDE_DIR}" IMPORTED_LOCATION "${FFTW3_LIBRARY}" ) endif() endif() mark_as_advanced(FFTW3_LIBRARY FFTW3_INCLUDE_DIR)