Gtk2 1.162 build errors on PangoLayout test

[Kim Do-hyoung Keedi <keedi emstone com>]

Hi,

I am trying to build Gtk2 1.162 on Ubuntu Gusty and receive the
following errors. Another tests of PangoLayout.t except
$line->x_to_index() have no problem.

Build error on Gtk2-1.162 on Ubuntu Gusty:

t/PangoLayout......................ok 1/68Modification of a read-only
value attempted at t/PangoLayout.t line 134.
# Looks like you planned 68 tests but only ran 36.
# Looks like your test died just after 36.
t/PangoLayout......................dubious                                   
        Test returned status 255 (wstat 65280, 0xff00)
DIED. FAILED tests 37-68
        Failed 32/68 tests, 52.94% okay

t/PangoLayout:

131:  my $line = $layout -> get_line(0);
132:  isa_ok($line, "Gtk2::Pango::LayoutLine");
133:
134:  my ($outside, $index, $trailing) = $line -> x_to_index(23);
135:  ok(defined $outside && defined $index && defined $trailing);
136:  ok(defined $line -> index_to_x(0, TRUE));

Environment:

OS: Ubuntu Gusty, Linux Kernel 2.6.22
Perl: v5.8.8 built for i486-linux-gnu-thread-multi
GLIB: 1.2.10
GTK+: 2.12.0
Pango: 1.18.3
Cairo: 1.4.10

Thanks in advance for any assistance,
Keedi Kim