Was trying to emerge rhythmbox and scrollkeeper-0.3.14 was the last of the dependencies to get sucked in. This failed compiling because of a missing Perl module dev-perl/XML-Parser - the ebuild dependencies apparently didn't pick up on this.
The obvious workaround seems to have worked:
Steps to Reproduce:
1. emerge rhythmbox (or scrollkeeper itself I presume)
LC_ALL=C ../../intltool-merge ../../po scrollkeeper_cl.xml.in
scrollkeeper_cl.xml -x -u -c ../../po/.intltool-merge-cache
You must have XML::Parser installed to run ../../intltool-merge
Here are the USE flags from /etc/make.conf:
USE="acl alsa cdr cups dga directfb dvd dvdr fbcon nas samba scanner tiff usb
-gnome -gtk -ldap"
intltool has the XML-Parser dependency. sounds like you did not run the libperl rebuilder directly after your last perl update
*** This bug has been marked as a duplicate of bug 41124 ***