From 2873d9dc8c42c28dec3d7982362382f821b08bcd Mon Sep 17 00:00:00 2001
From: Katsuya Hidaka <hidakatsuya@gmail.com>
Date: Fri, 1 Dec 2023 01:46:21 +0900
Subject: [PATCH] prawn requires matrix

prawn depends on the matrix gem, which has been bundled since Ruby 3.1. However, a version of prawn that adds the matrix gem dependency has not been released. Therefore, the following error occurs.
.../gems/prawn-2.4.0/lib/prawn/transformation_stack.rb:10:in `require': cannot load such file -- matrix (LoadError)
---
 Gemfile             | 1 -
 thinreports.gemspec | 1 +
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/Gemfile b/Gemfile
index 9245c6b1..26e90d9b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,6 @@ gem 'rake'
 gem 'minitest'
 gem 'mocha'
 gem 'pdf-inspector'
-gem 'matrix'
 gem 'pdf_matcher-testing'
 
 # suppress warning: assigned but unused variable - y1
diff --git a/thinreports.gemspec b/thinreports.gemspec
index 5f5d61b5..64fe2821 100644
--- a/thinreports.gemspec
+++ b/thinreports.gemspec
@@ -23,5 +23,6 @@ Gem::Specification.new do |s|
   s.require_paths = ['lib']
 
   s.add_dependency 'prawn', '>= 2.4.0'
+  s.add_dependency 'matrix', '~> 0.4'
   s.add_dependency 'rexml'
 end