From 0f7f156bd16adad8ab2f313f26933a3c9fafbdd4 Mon Sep 17 00:00:00 2001
From: Benoit Daloze <eregontp@gmail.com>
Date: Tue, 30 May 2023 14:20:11 +0200
Subject: [PATCH 1/3] Use the correct pattern for the fallback of
 rb_io_descriptor()

* See https://github.com/ruby/io-console/pull/43/commits/d1d9aef45ceb14365fdf0ebee3e5ea06f27da682
---
 ext/io/nonblock/nonblock.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ext/io/nonblock/nonblock.c b/ext/io/nonblock/nonblock.c
index 048c3aa..4c729a7 100644
--- a/ext/io/nonblock/nonblock.c
+++ b/ext/io/nonblock/nonblock.c
@@ -19,12 +19,13 @@
 
 #ifndef HAVE_RB_IO_DESCRIPTOR
 static int
-rb_io_descriptor(VALUE io)
+io_descriptor_fallback(VALUE io)
 {
     rb_io_t *fptr;
     GetOpenFile(io, fptr);
     return fptr->fd;
 }
+#define rb_io_descriptor io_descriptor_fallback
 #endif
 
 #ifdef F_GETFL

From 0bcaec8807ff2c91ea7fdee6c338d5c280830164 Mon Sep 17 00:00:00 2001
From: Benoit Daloze <eregontp@gmail.com>
Date: Tue, 30 May 2023 14:21:54 +0200
Subject: [PATCH 2/3] Add TruffleRuby support and add it in CI

* Do not use a C extension on TruffleRuby for these 3 methods.
---
 .github/workflows/test.yml |  2 +-
 Rakefile                   | 13 +++++++++----
 ext/io/nonblock/extconf.rb |  5 +++++
 3 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 67353f3..389089f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,7 +7,7 @@ jobs:
     name: build (${{ matrix.ruby }} / ${{ matrix.os }})
     strategy:
       matrix:
-        ruby: [ 3.0, 2.7, head ]
+        ruby: [ 3.0, 2.7, head, truffleruby, truffleruby-head ]
         os: [ ubuntu-latest, macos-latest ]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/Rakefile b/Rakefile
index 44b7d42..b622e9e 100644
--- a/Rakefile
+++ b/Rakefile
@@ -3,12 +3,17 @@ require "rake/testtask"
 
 name = "io/nonblock"
 
-require 'rake/extensiontask'
-extask = Rake::ExtensionTask.new(name) do |x|
-  x.lib_dir.sub!(%r[(?=/|\z)], "/#{RUBY_VERSION}/#{x.platform}")
+if RUBY_ENGINE == 'ruby'
+  require 'rake/extensiontask'
+  extask = Rake::ExtensionTask.new(name) do |x|
+    x.lib_dir.sub!(%r[(?=/|\z)], "/#{RUBY_VERSION}/#{x.platform}")
+  end
+else
+  task :compile
 end
+
 Rake::TestTask.new(:test) do |t|
-  t.libs = ["lib/#{RUBY_VERSION}/#{extask.platform}"]
+  t.libs = ["lib/#{RUBY_VERSION}/#{extask.platform}"] if extask
   t.libs << "test/lib"
   t.ruby_opts << "-rhelper"
   t.test_files = FileList["test/**/test_*.rb"]
diff --git a/ext/io/nonblock/extconf.rb b/ext/io/nonblock/extconf.rb
index 5321593..a1e6075 100644
--- a/ext/io/nonblock/extconf.rb
+++ b/ext/io/nonblock/extconf.rb
@@ -2,6 +2,11 @@
 require 'mkmf'
 target = "io/nonblock"
 
+unless RUBY_ENGINE == 'ruby'
+  File.write("Makefile", dummy_makefile($srcdir).join(""))
+  return
+end
+
 have_func("rb_io_descriptor")
 
 hdr = %w"fcntl.h"

From aec27bdb1ec9c19efb58eb4102c2595fe973e7ec Mon Sep 17 00:00:00 2001
From: Benoit Daloze <eregontp@gmail.com>
Date: Tue, 30 May 2023 14:32:55 +0200
Subject: [PATCH 3/3] Add JRuby in CI

---
 .github/workflows/test.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 389089f..51a46b3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,7 +7,7 @@ jobs:
     name: build (${{ matrix.ruby }} / ${{ matrix.os }})
     strategy:
       matrix:
-        ruby: [ 3.0, 2.7, head, truffleruby, truffleruby-head ]
+        ruby: [ 3.0, 2.7, head, truffleruby, truffleruby-head, jruby, jruby-head ]
         os: [ ubuntu-latest, macos-latest ]
     runs-on: ${{ matrix.os }}
     steps: