Merge pull request #4623 from rubygems/missing_extensions_regression

Fix some cached gems being unintentionally ignored when using rubygems 3.2.18

(cherry picked from commit b19664c)

Author: simi

bundler/lib/bundler/source/rubygems.rb

@@ -398,10 +398,6 @@ def cached_specs
             next if gemfile =~ /^bundler\-[\d\.]+?\.gem/
             s ||= Bundler.rubygems.spec_from_gem(gemfile)
             s.source = self
-            if Bundler.rubygems.spec_missing_extensions?(s, false)
-              Bundler.ui.debug "Source #{self} is ignoring #{s} because it is missing extensions"
-              next
-            end
             idx << s
           end
 

bundler/spec/commands/cache_spec.rb

@@ -302,6 +302,30 @@
       expect(out).to include("frozen").or include("deployment")
     end
   end
+
+  context "with gems with extensions" do
+    before do
+      build_repo2 do
+        build_gem "racc", "2.0" do |s|
+          s.add_dependency "rake"
+          s.extensions << "Rakefile"
+          s.write "Rakefile", "task(:default) { puts 'INSTALLING rack' }"
+        end
+      end
+
+      gemfile <<~G
+        source "#{file_uri_for(gem_repo2)}"
+
+        gem "racc"
+      G
+    end
+
+    it "installs them properly from cache to a different path" do
+      bundle "cache"
+      bundle "config set --local path vendor/bundle"
+      bundle "install --local"
+    end
+  end
 end
 
 RSpec.describe "bundle install with gem sources" do
@@ -321,7 +345,7 @@
       expect(the_bundle).to include_gems "rack 1.0.0"
     end
 
-    it "does not hit the remote at all" do
+    it "does not hit the remote at all in frozen mode" do
       build_repo2
       install_gemfile <<-G
         source "#{file_uri_for(gem_repo2)}"