This file is indexed.

/usr/lib/x86_64-linux-gnu/pkgconfig/fftw3f.pc is in libfftw3-dev 3.3.4-2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
prefix=/usr
exec_prefix=${prefix}
libdir=${prefix}/lib/x86_64-linux-gnu
includedir=${prefix}/include

Name: FFTW
Description: fast Fourier transform library
Version: 3.3.4
Libs: -L${libdir} -lfftw3f 
Libs.private: -lm
Cflags: -I${includedir}