Content of RPM fftw2-2.1.5-34.fc28.x86_64.rpm :
/usr/lib/.build-id
/usr/lib/.build-id/20
/usr/lib/.build-id/20/a6424f75203827731b71d598cd2b2557e959f7
/usr/lib/.build-id/2b
/usr/lib/.build-id/2b/2519b665cb071a544a22040a9f5441be7d8186
/usr/lib/.build-id/52
/usr/lib/.build-id/52/34758ca4a1416e85802d38fe3812ea6cc415b0
/usr/lib/.build-id/5f
/usr/lib/.build-id/5f/e3142cc9d75f4fa37a4b20dea3b44af353da00
/usr/lib/.build-id/69
/usr/lib/.build-id/69/5cf12523a7f8a5155f047b49935eb7512ec79a
/usr/lib/.build-id/73
/usr/lib/.build-id/73/af296720b5c2f75d6cf26507b88b52c1acf453
/usr/lib/.build-id/95
/usr/lib/.build-id/95/9b2f826dfe4cc592548beb1681dcd6ef0a94c4
/usr/lib/.build-id/b3
/usr/lib/.build-id/b3/b2f6e90f81f1e9c2e156cf7488a1e916be0c26
/usr/lib64/libfftw.so.2
/usr/lib64/libfftw.so.2.0.7
/usr/lib64/libfftw_threads.so.2
/usr/lib64/libfftw_threads.so.2.0.7
/usr/lib64/librfftw.so.2
/usr/lib64/librfftw.so.2.0.7
/usr/lib64/librfftw_threads.so.2
/usr/lib64/librfftw_threads.so.2.0.7
/usr/lib64/libsfftw.so.2
/usr/lib64/libsfftw.so.2.0.7
/usr/lib64/libsfftw_threads.so.2
/usr/lib64/libsfftw_threads.so.2.0.7
/usr/lib64/libsrfftw.so.2
/usr/lib64/libsrfftw.so.2.0.7
/usr/lib64/libsrfftw_threads.so.2
/usr/lib64/libsrfftw_threads.so.2.0.7
/usr/share/doc/fftw2
/usr/share/doc/fftw2/AUTHORS
/usr/share/doc/fftw2/COPYING
/usr/share/doc/fftw2/COPYRIGHT
/usr/share/doc/fftw2/ChangeLog
/usr/share/doc/fftw2/NEWS
/usr/share/doc/fftw2/README
/usr/share/doc/fftw2/README.hacks
/usr/share/doc/fftw2/TODO