The program below gets an error for me,
Attempt to free unreferenced scalar: SV 0x83c10a8, Perl interpreter: 0x8150008.
It seems to have something to do with returning a reference as data in
an iter. Are you allowed to do that? I saw "Will not persist" in the
Gtk2::TreeModel docs, but couldn't tell what it meant.
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foo.pl
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