static gboolean
gpk_dbus_task_path_is_trusted (const gchar *exec)
{
	/* special case the plugin helper -- it's trusted */
	if (g_strcmp0 (exec, "/usr/libexec/gst-install-plugins-helper") == 0 ||
	    g_strcmp0 (exec, "/usr/libexec/pk-gstreamer-install") == 0)
		return TRUE;
	return FALSE;
}

I understand why this is hardcoded. However, we don't use /usr/libexec in openSUSE. Does it make sense to either change this to $(libexecdir), or to provide a configure switch for this?

I'm willing to write the patch, just tell me what you prefer :-)