use builtin methods

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3359 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ext/aix_mksym.rb

@@ -1,33 +1,12 @@
 
-def uniq(data)
+data = []
-  last=nil
+IO.foreach("|/usr/ccs/bin/nm -p #{ARGV[0]}") do |line|
-  data.delete_if do |name|
-    if last == name
-      TRUE
-    else
-      last = name
-      FALSE
-    end
-  end
-end
-
-def extract(nm, out)
-  data = nm.readlines.collect{|line|
   line = line.split
   case line[1]
   when "B", "D"
-      line[0]
+    data << line[0]
-    else
-      next
   end
-  }.compact!.sort!
-  uniq(data)
-  exp = open(out, "w")
-  exp.printf "#!\n"
-  for line in data
-    exp.printf "%s\n", line
 end
-  exp.close
+data.uniq!
-  nm.close
+data.sort!
-end
+open(ARGV[1], "w") {|exp| exp.puts "#!", data}
-extract(open("|/usr/ccs/bin/nm -p ../libruby.a"), "../ruby.imp")