libgd error when upgrading SageMath in Ubuntu 14.04

edit

Well, it is there, anyway:

$ git log build/pkgs/libgd/
<stuff>    
commit fd489bf083f69e84c48ead6b6b7afa521593d783
Author: <snip>
Date:   Fri Apr 24 13:19:10 2015 +0200

    update libgd to 2.1.1

commit 7dcb52394e0465210352ecc4c614d9b8130a58a1
Author: <snip>
Date:   Fri Apr 24 13:18:35 2015 +0200

    add patch to libgd to fix build error

But I can't answer as to whether that should have fixed your specific error. Maybe that only worked on Arch and is unrelated to this, or maybe it's a different libpvx issue?

Here you can find a patch that helped me solve a similar build problem on Arch. I'm guessing it is the same issue as in ticket 18293 since libvpx is involved.

Are you building sage from source?