drwxr-xr-x root       root             4096 ./usr
drwxr-xr-x root       root             4096 ./usr/lib
-rwxr-xr-x root       root           788392 ./usr/lib/libfftw3.so.3.6.10
lrwxrwxrwx root       root               18 ./usr/lib/libfftw3.so.3 -> libfftw3.so.3.6.10
-rwxr-xr-x root       root            67496 ./usr/lib/libfftw3_threads.so.3.6.10
lrwxrwxrwx root       root               26 ./usr/lib/libfftw3_threads.so.3 -> libfftw3_threads.so.3.6.10