# Adapted from: https://github.com/wjakob/layerlab/blob/master/cmake/FindFFTW.cmake

# Copyright (c) 2015, Wenzel Jakob
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# - Find FFTW
# Find the native FFTW includes and library
#
#  FFTW_INCLUDE_DIR   - where to find fftw3.h
#  FFTW_LIBRARY       - List of libraries when using FFTW.
#  FFTW_FOUND         - True if FFTW found.

if (FFTW_INCLUDE_DIR)
  # Already in cache, be silent
  set (FFTW_FIND_QUIETLY TRUE)
endif (FFTW_INCLUDE_DIR)

find_path (FFTW_INCLUDE_DIR fftw3.h)

find_library (FFTW_LIBRARY NAMES fftw3)

# handle the QUIETLY and REQUIRED arguments and set FFTW_FOUND to TRUE if
# all listed variables are TRUE
include (FindPackageHandleStandardArgs)
find_package_handle_standard_args (FFTW DEFAULT_MSG FFTW_LIBRARY FFTW_INCLUDE_DIR)

mark_as_advanced (FFTW_LIBRARY FFTW_INCLUDE_DIR)