Patch-Source: https://github.com/tzinfo/tzinfo/commit/9e04c58ce10920538dc55ba6e547aa15cff39a84
--
From 9e04c58ce10920538dc55ba6e547aa15cff39a84 Mon Sep 17 00:00:00 2001
From: Phil Ross <phil.ross@gmail.com>
Date: Sat, 16 Dec 2023 19:14:20 +0000
Subject: [PATCH] Fix loading the gemspec file from rake with Ruby 3.3.

Calculating the current directory name from within the gemspec would
fail.

`__FILE__` was '(eval)' with Ruby < 3.3. `File.dirname(__FILE__)` is
'.'.

`__FILE__` is '(eval at /path/Rakefile:linenumber)' with Ruby >= 3.3.
`File.dirname(__FILE__)` is '(eval at /path'.
---
 Rakefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Rakefile b/Rakefile
index 8a34fa33..69bee7b5 100644
--- a/Rakefile
+++ b/Rakefile
@@ -11,11 +11,11 @@ rescue LoadError, RuntimeError
 end
 
 BASE_DIR = File.expand_path(File.dirname(__FILE__))
+GEMSPEC_PATH = File.join(BASE_DIR, 'tzinfo.gemspec')
+spec = TOPLEVEL_BINDING.eval(File.read(GEMSPEC_PATH), GEMSPEC_PATH)
 
 task default: [:test]
 
-spec = eval(File.read('tzinfo.gemspec'))
-
 class TZInfoPackageTask < Gem::PackageTask
   alias_method :orig_sh, :sh
   private :orig_sh
