libstdc++6:
  Installed: 4.7.0-7ubuntu3
  Candidate: 4.7.0-7ubuntu3
  Version table:
 *** 4.7.0-7ubuntu3 0
        500 http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu/ precise/main i386 Packages
        100 /var/lib/dpkg/status
     4.6.3-1ubuntu5 0
        500 http://us.archive.ubuntu.com/ubuntu/ precise/main i386 Packages
libstdc++6-4.6-dev:
  Installed: 4.6.3-1ubuntu5
  Candidate: 4.6.3-1ubuntu5
  Version table:
 *** 4.6.3-1ubuntu5 0
        500 http://us.archive.ubuntu.com/ubuntu/ precise/main i386 Packages
        100 /var/lib/dpkg/status