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-rw-r--r--perl-install/mygtk3.pm3
1 files changed, 2 insertions, 1 deletions
diff --git a/perl-install/mygtk3.pm b/perl-install/mygtk3.pm
index 94b8577f6..de92943f2 100644
--- a/perl-install/mygtk3.pm
+++ b/perl-install/mygtk3.pm
@@ -312,7 +312,8 @@ sub _gtk__ProgressBar {
}
if (my $fraction_ref = delete $opts->{fraction_ref}) {
- $$fraction_ref ||= 0;
+ # guard for ref to ref (eg: int64(0) vs 0):
+ $$fraction_ref = 0 if !defined($$fraction_ref);
my $set = sub { $w->set_fraction($$fraction_ref) };
gtkval_register($w, $fraction_ref, $set);
$set->();