nobu	2015-11-04 10:32:54 +0900 (Wed, 04 Nov 2015)

  New Revision: 52439

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=52439

  Log:
    fake.rb: fix builddir
    
    * tool/fake.rb (prehook): consider the case building under the
      source directory.

  Modified files:
    trunk/tool/fake.rb
Index: tool/fake.rb
===================================================================
--- tool/fake.rb	(revision 52438)
+++ tool/fake.rb	(revision 52439)
@@ -41,7 +41,7 @@ prehook = proc do |extmk| https://github.com/ruby/ruby/blob/trunk/tool/fake.rb#L41
       dir.shift
       pwd.shift
     end
-    builddir = File.join([".."]*pwd.size + dir)
+    builddir = File.join((pwd.empty? ? ["."] : [".."]*pwd.size) + dir)
     builddir = "." if builddir.empty?
   end
   join = proc {|*args| File.join(*args).sub!(/\A(?:\.\/)*/, '')}

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