Display "with native extensions" log output correctly

3 files changed, 13 insertions, 2 deletions

diff --git a/lib/bundler/endpoint_specification.rb b/lib/bundler/endpoint_specification.rb
index b27b0f5040..21a6c85c5a 100644
--- a/lib/bundler/endpoint_specification.rb
+++ b/lib/bundler/endpoint_specification.rb
@@ -70,6 +70,15 @@ module Bundler
       end
     end
 
+    # needed for "with native extensions" during install
+    def extensions
+      if @remote_specification
+        @remote_specification.extensions
+      elsif _local_specification
+        _local_specification.extensions
+      end
+    end
+
     def _local_specification
       if @loaded_from && File.exist?(local_specification_path)
         eval(File.read(local_specification_path)).tap do |spec|
diff --git a/lib/bundler/source/rubygems.rb b/lib/bundler/source/rubygems.rb
index c066e898a5..7b40860db9 100644
--- a/lib/bundler/source/rubygems.rb
+++ b/lib/bundler/source/rubygems.rb
@@ -117,7 +117,9 @@ module Bundler
         end
 
         unless Bundler.settings[:no_install]
-          Bundler.ui.confirm "Installing #{version_message(spec)} "
+          message = "Installing #{version_message(spec)}"
+          message << " with native extensions" if spec.extensions.any?
+          Bundler.ui.confirm message
 
           path = cached_gem(spec)
           if Bundler.requires_sudo?
diff --git a/spec/install/gems/native_extensions_spec.rb b/spec/install/gems/native_extensions_spec.rb
index 5982afcc4a..8d14acf5f3 100644
--- a/spec/install/gems/native_extensions_spec.rb
+++ b/spec/install/gems/native_extensions_spec.rb
@@ -40,8 +40,8 @@ describe "installing a gem with native extensions" do
     bundle "config build.c_extension --with-c_extension=hello"
     bundle "install"
 
-    expect(out).to include("Installing c_extension 1.0 with native extensions")
     expect(out).not_to include("extconf.rb failed")
+    expect(out).to include("Installing c_extension 1.0 with native extensions")
 
     run "Bundler.require; puts CExtension.new.its_true"
     expect(out).to eq("true")