Revert "update autogen files"

This reverts commit 4719b7a7ea4f9a16f2ada618775a917926a89ea3.
Revert "remove useless call to fftw_cleanup"

This reverts commit 8a5d0cb37352b9ac26e6c6c63d9ca6431e8bd049.
fix typo in comment
update autogen files