From dbb5bfee033ceb2600d5017d370b9533f6e6d6f7 Mon Sep 17 00:00:00 2001
From: Charles McGarvey <ccm@cpan.org>
Date: Tue, 19 Apr 2022 00:37:14 -0600
Subject: [PATCH] Add a couple fixes for older perls

---
 lib/File/KDBX.pm       | 1 -
 lib/File/KDBX/Error.pm | 7 ++++++-
 lib/File/KDBX/IO.pm    | 2 +-
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/lib/File/KDBX.pm b/lib/File/KDBX.pm
index 2dcf341..3f52d6c 100644
--- a/lib/File/KDBX.pm
+++ b/lib/File/KDBX.pm
@@ -15,7 +15,6 @@ use Ref::Util qw(is_ref is_arrayref is_plain_hashref);
 use Scalar::Util qw(blessed refaddr);
 use Time::Piece;
 use boolean;
-use warnings::register;
 use namespace::clean;
 
 our $VERSION = '999.999'; # VERSION
diff --git a/lib/File/KDBX/Error.pm b/lib/File/KDBX/Error.pm
index 6ea0649..fbc6bbd 100644
--- a/lib/File/KDBX/Error.pm
+++ b/lib/File/KDBX/Error.pm
@@ -15,7 +15,12 @@ our @EXPORT = qw(alert error throw);
 my $WARNINGS_CATEGORY;
 BEGIN {
     $WARNINGS_CATEGORY = 'File::KDBX';
-    warnings::register_categories($WARNINGS_CATEGORY) if warnings->can('register_categories');
+    if (warnings->can('register_categories')) {
+        warnings::register_categories($WARNINGS_CATEGORY);
+    }
+    else {
+        eval qq{package $WARNINGS_CATEGORY; use warnings::register; 1}; ## no critic ProhibitStringyEval
+    }
 }
 
 use overload '""' => 'to_string', cmp => '_cmp';
diff --git a/lib/File/KDBX/IO.pm b/lib/File/KDBX/IO.pm
index 0ea5d9c..5d18347 100644
--- a/lib/File/KDBX/IO.pm
+++ b/lib/File/KDBX/IO.pm
@@ -366,7 +366,7 @@ if ($ENV{DEBUG_IO}) {
             my $indented_method = (' ' x $debug{level}) . $method;
             my $self = shift;
             print STDERR sprintf('%-20s -> %s (%s)', $indented_method, $self,
-                join(', ', map { defined ? substr($_, 0, 16) : 'undef' } @_)), "\n";
+                join(', ', map { defined $_ ? substr($_, 0, 16) : 'undef' } @_)), "\n";
             my $r = $orig->($self, @_) // 'undef';
             print STDERR sprintf('%-20s <- %s [%s]', $indented_method, $self, $r), "\n";
             return $r;
-- 
2.43.0