Merge tag 'v1.9.4'

Version 1.9.4

Conflicts:
	lib/bundler/installer.rb
	lib/bundler/match_platform.rb
	lib/bundler/source/rubygems.rb

1 files changed, 19 insertions, 12 deletions

diff --git a/lib/bundler/installer.rb b/lib/bundler/installer.rb
index 6cbdf3a6a9..7365b8f27e 100644
--- a/lib/bundler/installer.rb
+++ b/lib/bundler/installer.rb
@@ -98,20 +98,27 @@ module Bundler
 
     def install_gem_from_spec(spec, standalone = false, worker = 0, force = false)
       # Fetch the build settings, if there are any
-      settings             = Bundler.settings["build.#{spec.name}"]
-      install_message      = nil
-      post_install_message = nil
-      debug_message        = nil
-      Bundler.rubygems.with_build_args [settings] do
-        install_message, post_install_message, debug_message = spec.source.install(spec, force)
-        if install_message.include? 'Installing'
-          Bundler.ui.confirm install_message
-        else
-          Bundler.ui.info install_message
+      settings = Bundler.settings["build.#{spec.name}"]
+      messages = nil
+
+      if settings
+        # Build arguments are global, so this is mutexed
+        Bundler.rubygems.with_build_args [settings] do
+          messages = spec.source.install(spec, force)
         end
-        Bundler.ui.debug debug_message if debug_message
-        Bundler.ui.debug "#{worker}:  #{spec.name} (#{spec.version}) from #{spec.loaded_from}"
+      else
+        messages = spec.source.install(spec, force)
+      end
+
+      install_message, post_install_message, debug_message = *messages
+
+      if install_message.include? 'Installing'
+        Bundler.ui.confirm install_message
+      else
+        Bundler.ui.info install_message
       end
+      Bundler.ui.debug debug_message if debug_message
+      Bundler.ui.debug "#{worker}:  #{spec.name} (#{spec.version}) from #{spec.loaded_from}"
 
       if Bundler.settings[:bin] && standalone
         generate_standalone_bundler_executable_stubs(spec)