configure

用于实现非均匀采样FFT（NDFT）

if [ $# -eq 1 ]
then
  echo -n "building makefiles..."
  echo "# ----- NFFT/FFTW library and path ---------------------------------------" > prefix
  echo -n "NFFT_DIR = "  >> prefix; pwd >> prefix
  echo -n "FFTW_DIR = "  >> prefix; echo "$1" >> prefix

  cat prefix ./lib/Makefile.ins > ./lib/Makefile

  for i in $(ls example)
  do
    echo "EXAMPLE_NAME = $i" > prefix_name
    cat prefix prefix_name ./Make_example.ins > ./example/$i/Makefile
  done

  rm prefix
  rm prefix_name
  echo "done."
  exit 0
else
  echo "$0 <FFTW_PATH>"
  exit 1
fi