title: can't install libc6 package
body: <pre><code>esrsank@PG04954:~$ sudo apt-get install libc6-i386
  
  Reading package lists... Done Building dependency tree        Reading state information... Done You might want to run 'apt-get -f install' to correct these:
  
  The following packages have unmet dependencies:   build-essential :
  
   Depends: libc6-dev but it is not going to be installed or
                              libc-dev  
  
  libc6-i386 : Depends: libc6 (= 2.15-0ubuntu10.6) but 2.15-0ubuntu10.10 is to be installed
  
  
   libstdc++6-4.6-dev : Depends: libc6-dev (&gt;= 2.13-0ubuntu6) but it is not going to be installed
  
  
  E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
  </code></pre>
  
  <p>So how to install libc6 (= 2.15-0ubuntu10.6) instead of libc6 (= 2.15-0ubuntu10.10)</p>
  
  <p>the same for ibstdc++6-4.6-dev</p>