sources:
  "3.3.8":
    url: "http://www.fftw.org/fftw-3.3.8.tar.gz"
    sha256: "6113262f6e92c5bd474f2875fa1b01054c4ad5040f6b0da7c03c98821d9ae303"
patches:
  "3.3.8":
    - patch_file: "patches/fix-cmake.patch"
      base_path: "source_subfolder"
