/usr/lib/x86_64-linux-gnu/pkgconfig/fflas-ffpack.pc is in fflas-ffpack 2.2.2-5.
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 12 13 14 | /------------------ fflas-ffpack.pc ------------------------
prefix=/usr
exec_prefix=/usr
libdir=/usr/lib
includedir=/usr/include
Name: fflas-ffpack
Description: Finite Field Linear Algebra Suroutines/Package
URL: http://github.com/linbox-team/fflas-ffpack
Version: 2.2.2
Requires: givaro >= 4.0.1
Libs: -fopenmp -lblas -llapack
Cflags: -I${prefix}/include -D__FFLASFFPACK_HAVE_CBLAS -fopenmp
\-------------------------------------------------------
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