From 0de2d84af82935ba01ba1d3328c9fdcf287bf3e1 Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 23 Jun 2010 05:32:46 +0000
Subject: Clean warnings: unused variables.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28398 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/forwardable.rb | 6 +-----
 lib/matrix.rb      | 5 ++---
 lib/mkmf.rb        | 3 +--
 3 files changed, 4 insertions(+), 10 deletions(-)

(limited to 'lib')

diff --git a/lib/forwardable.rb b/lib/forwardable.rb
index 06f157170d..636d2d0d0a 100644
--- a/lib/forwardable.rb
+++ b/lib/forwardable.rb
@@ -246,7 +246,7 @@ module SingleForwardable
   # provided, it is used as the name for the delegate method.
   #
   def def_single_delegator(accessor, method, ali = method)
-    line_no = __LINE__; str = %{
+    str = %{
       def #{ali}(*args, &block)
 	begin
 	  #{accessor}.__send__(:#{method}, *args, &block)
@@ -264,7 +264,3 @@ module SingleForwardable
   alias def_delegators def_single_delegators
   alias def_delegator def_single_delegator
 end
-
-
-
-
diff --git a/lib/matrix.rb b/lib/matrix.rb
index 8e6b08c3c6..3fda08b18d 100644
--- a/lib/matrix.rb
+++ b/lib/matrix.rb
@@ -834,7 +834,6 @@ class Matrix
     a = to_a
     last_column = column_size - 1
     last_row = row_size - 1
-    rank = 0
     pivot_row = 0
     previous_pivot = 1
     0.upto(last_column) do |k|
@@ -1237,7 +1236,7 @@ class Vector
   #   Vector[7, 4, ...]
   #
   def Vector.[](*array)
-    new convert_to_array(array, copy = false)
+    new convert_to_array(array, false)
   end
 
   #
@@ -1532,6 +1531,6 @@ class Vector
   # Overrides Object#inspect
   #
   def inspect
-    str = "Vector"+@elements.inspect
+    "Vector" + @elements.inspect
   end
 end
diff --git a/lib/mkmf.rb b/lib/mkmf.rb
index cba14ce57a..696609a6a4 100644
--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -153,8 +153,7 @@ def map_dir(dir, map = nil)
   map.inject(dir) {|d, (orig, new)| d.gsub(orig, new)}
 end
 
-topdir = File.dirname(libdir = File.dirname(__FILE__))
-extdir = File.expand_path("ext", topdir)
+topdir = File.dirname(File.dirname(__FILE__))
 path = File.expand_path($0)
 $extmk = path[0, topdir.size+1] == topdir+"/"
 $extmk &&= %r"\A(?:ext|enc|tool|test(?:/.+))\z" =~ File.dirname(path[topdir.size+1..-1])
-- 
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