/usr/lib/x86_64-linux-gnu/pkgconfig/libfastahack.pc is in libfastahack-dev 0.0+20160702-1.
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=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include/fastahack
Name: libfastahack
Version: 0.0
Description: utilities for indexing and sequence extraction from FASTA files
Libs: -L${libdir} -lfastahack
Cflags: -I${includedir}
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