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-rw-r--r--perl-install/interactive.pm1
1 files changed, 1 insertions, 0 deletions
diff --git a/perl-install/interactive.pm b/perl-install/interactive.pm
index c92215b31..a09f68f37 100644
--- a/perl-install/interactive.pm
+++ b/perl-install/interactive.pm
@@ -291,6 +291,7 @@ sub ask_from {
sub ask_from_normalize {
my ($_o, $common, $l) = @_;
+ ref($l) eq 'ARRAY' or internal_error('ask_from_normalize');
foreach my $e (@$l) {
if (my $li = $e->{list}) {
ref($e->{val}) =~ /SCALAR|REF/ or internal_error($e->{val} ? "field {val} must be a reference (it is $e->{val})" : "field {val} is mandatory"); #-#