PEAR 1.7.0 introduced a new "cfg" role, analagous to our RPM "%config"
role. This was something I requested, since I always found it strange
that PEAR didn't have such a thing when we find it useful in RPM land,
and PEAR and RPM are comparable in their goals.
Anyway, as it stands in rawhide, cfg_dir defaults to /usr/share/pear/cfg
but I think it really should be /etc/pear . (Then you would get config
files installed like so: /etc/pear/Some_Package/foo.ini)