From 341265c4a27cc61f6e562a4b350428a07b4a6f18 Mon Sep 17 00:00:00 2001
From: Andrew Konchin <andry.konchin@gmail.com>
Date: Tue, 17 Sep 2024 13:56:43 +0300
Subject: [PATCH 1/3] Skip building on TruffleRuby

---
 Rakefile              | 10 +++++++---
 ext/fiddle/extconf.rb |  5 +++++
 lib/fiddle.rb         |  9 ++++++++-
 3 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/Rakefile b/Rakefile
index aefc9ed5..fb3e8bd4 100644
--- a/Rakefile
+++ b/Rakefile
@@ -17,8 +17,12 @@ namespace :version do
   end
 end
 
-require 'rake/extensiontask'
-Rake::ExtensionTask.new("fiddle")
-Rake::ExtensionTask.new("-test-/memory_view")
+if RUBY_ENGINE == 'ruby'
+  require 'rake/extensiontask'
+  Rake::ExtensionTask.new("fiddle")
+  Rake::ExtensionTask.new("-test-/memory_view")
+else
+  task :compile
+end
 
 task :default => [:compile, :test]
diff --git a/ext/fiddle/extconf.rb b/ext/fiddle/extconf.rb
index 2d85b3ee..422b121c 100644
--- a/ext/fiddle/extconf.rb
+++ b/ext/fiddle/extconf.rb
@@ -1,6 +1,11 @@
 # frozen_string_literal: true
 require 'mkmf'
 
+if RUBY_ENGINE != 'ruby'
+  File.write('Makefile', dummy_makefile("").join)
+  return
+end
+
 # :stopdoc:
 
 def gcc?
diff --git a/lib/fiddle.rb b/lib/fiddle.rb
index 6137c487..cd559dc8 100644
--- a/lib/fiddle.rb
+++ b/lib/fiddle.rb
@@ -1,6 +1,13 @@
 # frozen_string_literal: true
 
-require 'fiddle.so'
+if RUBY_ENGINE == "ruby"
+  require 'fiddle.so'
+else
+  $LOAD_PATH.delete(__dir__)
+  require 'fiddle' # load from stdlib
+  return
+end
+
 require 'fiddle/closure'
 require 'fiddle/function'
 require 'fiddle/version'

From 3f6ac2b4f7a7eafad37647e69f637ebca994b98d Mon Sep 17 00:00:00 2001
From: Andrew Konchin <andry.konchin@gmail.com>
Date: Tue, 17 Sep 2024 18:36:16 +0300
Subject: [PATCH 2/3] Update CI workflow and build and install gems on
 TruffleRuby and JRuby

---
 .github/workflows/ci.yml | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a9941930..9c6b9a17 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -73,6 +73,31 @@ jobs:
           cd tmp
           ruby test/run.rb
 
+  # Don't run tests on TruffleRuby and JRuby because tests don't pass on them yet.
+  # So check only gem installing.
+  install:
+    name: >-
+      Install ${{ matrix.ruby }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby:
+          - truffleruby
+          - jruby
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+
+      - run: rake install
+
+      - run: ruby -e 'require "fiddle"'
+
   docker:
     name: >-
       ${{ matrix.service }}

From 58193bdf39a2186906cdd82630a1f854970a60c2 Mon Sep 17 00:00:00 2001
From: Benoit Daloze <eregontp@gmail.com>
Date: Thu, 26 Sep 2024 14:47:34 +0200
Subject: [PATCH 3/3] Avoid adding a non-normalized path to $LOAD_PATH in tests

* This is necessary to run Fiddle tests on non-CRuby.
---
 test/run.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/run.rb b/test/run.rb
index 454058f4..90992ad3 100755
--- a/test/run.rb
+++ b/test/run.rb
@@ -2,7 +2,7 @@
 
 $VERBOSE = true
 
-source_dir = "#{__dir__}/.."
+source_dir = File.dirname(__dir__)
 $LOAD_PATH.unshift("#{source_dir}/test")
 $LOAD_PATH.unshift("#{source_dir}/lib")