openresolv-discuss

How can I get scripts in /etc/resolvconf/update-libc.d/ to execute, or is there something similar to execute scripts AFTER resolv.conf has been updated by the openresolv package?
There is a script in there for postfix that copies the resolv.conf file to the postfix chroot any time resolv.conf updates. However, the script only executes if I install the "resolvconf" package instead of "openresolv." I'd prefer to use the latter, since that's what is pre-packaged on my distro. I'm not sure why the script won't run on openresolv.