The issue reported may be an upstream issue. The latest version 0.7.5-r1 of x11-libs/libnotify ignores the --expire-time option of the notify-send command.
In my view even if --expire-time is ignored, at least the last sent notification should overwrite the last-before notification before its timer expires. Especially given the fact that x11-libs/libnotify-0.7.5-r1 now has a notification-history widget.
I just want to confirm this. My version is different though. It's 0.7.5.
Well 0.7.5 is what I get from 'notify-send -v'. My libnotify is also 0.7.5-r1.
err, with what notification daemon is this?
* x11-misc/notification-daemon Latest version available: 0.7.6 Latest version installed: 0.7.6
I opened a bug for this at gnome: https://bugzilla.gnome.org/show_bug.cgi?id=724307
The following thread tries to track the bug: http://thread.gmane.org/gmane.linux.gentoo.devel/90111