pkg-config standards for .pc file location?

[Matthew Saltzman]

I work on another open-source project that is considering using
pkg-config, and we are trying to establish standards.  I found the
guidelines for how to package .pc files in Fedora (and EPEL), but I'm
curious if there are Fedora or Red Hat standards for the location where
the files are placed when the package is installed?

TIA.
-- 
                Matthew Saltzman

Clemson University Math Sciences
mjs AT clemson DOT edu
http://www.math.clemson.edu/~mjs