root@1b539ba3d69f:/tmp/haxe# apt-cache policy gcc-4.9
gcc-4.9-base:
  Installed: 4.9.1-0ubuntu1
  Candidate: 4.9.1-0ubuntu1
  Version table:
 *** 4.9.1-0ubuntu1 0
        500 http://archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     4.9-20140406-0ubuntu1 0
        500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
root@1b539ba3d69f:/tmp/haxe# apt-cache policy gcc    
gcc:
  Installed: 4:4.8.2-1ubuntu6
  Candidate: 4:4.8.2-1ubuntu6
  Version table:
 *** 4:4.8.2-1ubuntu6 0
        500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
        100 /var/lib/dpkg/status