[gentoo-amd64] Konqueror kcookiejar problem

[malc]

History: I was running kde4.1 then kde4.2 using +kdeprefix useflag.
Recently it got masked, and I rebuilt kde with -kdeprefix (at the same
time I think qt went from 4.5.0 to 4.5.2).

Issue: konqueror no longer stores any cookies.

Analysis:

Go to cookie settings in konq. toggle a checkbox, hit apply - be
greeted by "Unable to communicate with the cookie handler service. Any
changes you made will not take effect until the service is restarted"

Created new (empty) user account - to rule out old settings from
previous kde installations - no joy.

Run dbus-monitor - to see how konq is interacting with kded

method call sender=:1.101 -> dest=org.freedesktop.DBus serial=77
path=/org/freedesktop/DBus; interface=org.freedesktop.DBus;
member=GetNameOwner
   string "org.kde.kded"
method call sender=:1.101 -> dest=org.kde.kded serial=78
path=/modules/kcookiejar;
interface=org.freedesktop.DBus.Introspectable; member=Introspect
error sender=:1.2 -> dest=:1.101
error_name=org.freedesktop.DBus.Error.UnknownObject reply_serial=78
   string "No such object path '/modules/kcookiejar'"
method call sender=:1.101 -> dest=org.kde.kded serial=79
path=/modules/kcookiejar; interface=org.kde.KCookieServer;
member=reloadPolicy
error sender=:1.2 -> dest=:1.101
error_name=org.freedesktop.DBus.Error.UnknownObject reply_serial=79
   string "No such object path '/modules/kcookiejar'"

kded apparently does not know about kcookiejar...

Re-emerged kdelibs, qt-dbus etc. No joy.

Figuring this might be a prefix related issue - I unmerged the
entirety of kde4.2 and re-emerged.

Still no joy - same dbus-trace.

At this point - I am bashing my head - I've checked bugs.g.o / google
etc. - no-one else appears to be having this problem.

I can live without konq itself, but digikam image export plugins
require cookies to login to webservices - and I'd really like for that
to work again.

Any advice as to where to go from here would be greatfully appreciated.

Cheers,
malc.