merges r25067 from trunk into ruby_1_9_1 and added a test for it.

--
* lib/mathn.rb (Bignum#**): Fixed bignum**fixnum that was broken when requiring lib/mathn
  [ruby-core:25740]
--
* test/test_mathn.rb (TestMathn): new test case.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@25949 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 1 deletions

diff --git a/test/ruby/test_rational.rb b/test/ruby/test_rational.rb
index 8cacab9a09..37efc7b493 100644
--- a/test/ruby/test_rational.rb
+++ b/test/ruby/test_rational.rb
@@ -9,7 +9,8 @@ class Rational_Test < Test::Unit::TestCase
     if @complex
       @keiju = Complex.instance_variable_get('@RCS_ID')
     end
-    @unify = $".grep(/mathn/).size != 0
+    seps = [File::SEPARATOR, File::ALT_SEPARATOR].compact.map{|x| Regexp.escape(x)}.join("|")
+    @unify = $".grep(/(?:^|#{seps})mathn(?:\.(?:rb|so))?/).size != 0
   end
 
   def test_ratsub