there are several packages available that provide tools and/or libs for converting to and from rfc349[012] IDNs. The following are all one of GPL, LGPL or BSD(ish?): http://sv.gnu.org/projects/libidn (which requires http://sv.gnu.org/projects/gengetopt to compile) http://www.nic.ad.jp/ja/idn/idnkit/download/sources/idnkit-1.0-src.tar.gz http://www.verisign.com/nds/naming/idn/IDNSDK-1.0.2.tgz http://www.imc.org/idna/ (the next versions of icu will also have idn support) gentoo should have at least one of those in portage; probably all three. libidn (and gengetopt) are basic econf && emake && einstall packages. idnkit as well (but check out configure --help) IDNSDK is a java package.... there is also a python package in libidn's contrib dir.
libidn is now in portage
I am not sure this belongs to this "bug#. However it would be very nice if the BIND ebuild would enable the IDN support. Check bug http://bugs.gentoo.org/show_bug.cgi?id=48610
In the portage tree already.
