test-all が動きません。

% ./ruby -v
ruby 1.9.0 (2008-06-27 revision 17600) [i686-linux]
% make test-all
./miniruby -I./lib -I.ext/common -I./- -r./ext/purelib.rb  ./runruby.rb --extout=.ext  -- "./test/runner.rb" --basedir="./test" --runner=console 
Skipping permutation tests.
Gem::Indexer tests are being skipped.  Install builder gem.
/tmp/a/ruby/test/inlinetest.rb:37:in `replace': can't modify frozen string (RuntimeError)
        from /tmp/a/ruby/test/inlinetest.rb:37:in `in_progname'
        from /tmp/a/ruby/test/inlinetest.rb:16:in `block in loadtest'
        from prelude.rb:8:in `synchronize'
        from /tmp/a/ruby/test/inlinetest.rb:32:in `in_critical'
        from /tmp/a/ruby/test/inlinetest.rb:15:in `loadtest'
        from /tmp/a/ruby/test/test_pp.rb:4:in `<top (required)>'
        from /tmp/a/ruby/lib/test/unit/collector/dir.rb:91:in `require'
        from /tmp/a/ruby/lib/test/unit/collector/dir.rb:91:in `collect_file'
        from /tmp/a/ruby/lib/test/unit/collector/dir.rb:74:in `block in recursive_collect'
        from /tmp/a/ruby/lib/test/unit/collector/dir.rb:58:in `each'
        from /tmp/a/ruby/lib/test/unit/collector/dir.rb:58:in `recursive_collect'
        from /tmp/a/ruby/lib/test/unit/collector/dir.rb:29:in `collect'
        from /tmp/a/ruby/lib/test/unit/autorunner.rb:68:in `block (1 levels) in <class:AutoRunner>'
        from /tmp/a/ruby/lib/test/unit/autorunner.rb:213:in `[]'
        from /tmp/a/ruby/lib/test/unit/autorunner.rb:213:in `run'
        from /tmp/a/ruby/lib/test/unit/autorunner.rb:12:in `run'
        from ./test/runner.rb:9:in `<main>'
-- 
[田中 哲][たなか あきら][Tanaka Akira]