1 files changed, 1 insertions, 3 deletions
diff --git a/tool/rbinstall.rb b/tool/rbinstall.rb
index bf47bed7d5..c469ec56a4 100755
--- a/tool/rbinstall.rb
+++ b/tool/rbinstall.rb
@@ -150,6 +150,7 @@ def parse_args(argv = ARGV)
   end
 
   $destdir ||= $mflags.defined?("DESTDIR")
+  $destdir = File.expand_path($destdir) if $destdir
   if $extout ||= $mflags.defined?("EXTOUT")
     RbConfig.expand($extout)
   end
@@ -688,9 +689,6 @@ module RbInstall
     def write_cache_file
     end
 
-    def generate_plugins
-    end
-
     def shebang(bin_file_name)
       path = File.join(gem_dir, spec.bindir, bin_file_name)
       first_line = File.open(path, "rb") {|file| file.gets}