dln.c: non-ascii path on Windows

* dln.c (dln_load): use wchar version to load a library in
  non-ascii path on Windows.  based on the patch by Bugra Barin
  <bugrabarin AT hotmail.com> in [ruby-core:61845].  [Bug #9699]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45523 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 22 insertions, 0 deletions

diff --git a/test/-ext-/win32/test_dln.rb b/test/-ext-/win32/test_dln.rb
index 7c5fe61f59..40c1f533b0 100644
--- a/test/-ext-/win32/test_dln.rb
+++ b/test/-ext-/win32/test_dln.rb
@@ -1,4 +1,6 @@
 require 'test/unit'
+require 'tmpdir'
+require 'rbconfig'
 require_relative '../../ruby/envutil'
 
 module Bug
@@ -8,6 +10,26 @@ module Bug
         bug = '[Bug #6303]'
         assert_in_out_err(['-r-test-/win32/dln', '-eexit'], '', [], [], bug, timeout: 10)
       end
+
+      def test_nonascii_load
+        bug9699 = '[ruby-core:61845] [Bug #9699]'
+        so = "-test-/win32/dln/empty." + RbConfig::CONFIG["DLEXT"]
+        so = $:.find {|d| d = File.join(d, so); break d if File.exist?(d)}
+        assert_not_nil(so)
+        Dir.mkdir(dir = File.join(testdir = Dir.mktmpdir("test"), "\u{30c6 30b9 30c8}"))
+        File.copy_stream(so, File.join(dir, File.basename(so)))
+        assert_separately(['-', bug9699, testdir, File.basename(so)], <<-'end;')
+          bug, dir, so = *ARGV
+          assert_nothing_raised(LoadError, bug) do
+            require File.join(dir, "\u{30c6 30b9 30c8}", so)
+          end
+        end;
+      ensure
+        File.unlink(File.join(dir, File.basename(so))) rescue nil
+        Dir.rmdir(dir) rescue nil
+        Dir.rmdir(testdir) rescue nil
+      end
+
     end
   end
 end if /mswin|mingw/ =~ RUBY_PLATFORM