perl-Gtk3-0.038-20.fc45 fails to build Fedora 45 because a test fails:

+ xvfb-run -d make test
PERL_DL_NONLAZY=1 "/usr/bin/perl" "-MExtUtils::Command::MM" "-MTest::Harness" "-e" "undef *Test::Harness::Switches; test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
# Testing Gtk3 0.038
#    Running against gtk+ 3.24.51
#   Compiled against gtk+ 3.24.51
t/00-init.t .................... ok
t/floating-refs.t .............. ok
(overrides.t:714): GdkPixbuf-WARNING **: 09:14:58.618: gdk-pixbuf XPM module lacks XPM data capability
#   Failed test 'undef isa 'Gtk3::Gdk::Pixbuf''
#   at t/overrides.t line 748.
#     undef isn't defined
Can't call method "get_colorspace" on an undefined value at t/overrides.t line 749.
# Looks like your test exited with 25 just after 179.
t/overrides.t .................. 
Dubious, test returned 25 (wstat 6400, 0x1900)
Failed 55/233 subtests 

Full output of test:

[...]
# Gtk3::Gdk::Pixbuf::new_from_data
ok 163 - An object of class 'Gtk3::Gdk::Pixbuf' isa 'Gtk3::Gdk::Pixbuf'
ok 164
ok 165
ok 166
ok 167
ok 168
ok 169
ok 170
ok 171 - An object of class 'Gtk3::Gdk::Pixbuf' isa 'Gtk3::Gdk::Pixbuf'
ok 172
ok 173
ok 174
ok 175
ok 176
ok 177
ok 178
# Gtk3::Gdk::Pixbuf::new_from_xpm_data

(overrides.t:13038): GdkPixbuf-WARNING **: 10:22:22.967: gdk-pixbuf XPM module lacks XPM data capability
not ok 179 - undef isa 'Gtk3::Gdk::Pixbuf'
#   Failed test 'undef isa 'Gtk3::Gdk::Pixbuf''
#   at t/overrides.t line 746.
#     undef isn't defined
Can't call method "get_colorspace" on an undefined value at t/overrides.t line 747.
# Looks like your test exited with 88 just after 179.


This is triggered by upgrading gdk-pixbuf2 from 2.44.4-2.fc44 to 2.44.5-2.fc45.