$NetBSD: patch-aa,v 1.7 2009/06/12 23:02:57 minskim Exp $

--- lib/rubygems/specification.rb.orig	2009-05-19 17:41:16.000000000 -0700
+++ lib/rubygems/specification.rb
@@ -812,12 +812,12 @@ class Gem::Specification
     end
 
     @files.delete_if            do |file| File.directory? file end
-    @test_files.delete_if       do |file| File.directory? file end
-    @executables.delete_if      do |file|
+    @test_files and @test_files.delete_if       do |file| File.directory? file end
+    @executables and @executables.delete_if      do |file|
       File.directory? File.join(bindir, file)
     end
-    @extra_rdoc_files.delete_if do |file| File.directory? file end
-    @extensions.delete_if       do |file| File.directory? file end
+    @extra_rdoc_files and @extra_rdoc_files.delete_if do |file| File.directory? file end
+    @extensions and @extensions.delete_if       do |file| File.directory? file end
 
     non_files = files.select do |file|
       !File.file? file