tree 449baf2adad2786c0d29b30d39b768f26283a5ff
parent d0a25c6df9fca7221ce72027701df4e1eb59cb16
author Geremy Condra <gcondra@google.com> 1338934668 -0700
committer Geremy Condra <gcondra@google.com> 1338937469 -0700

Add signed integer overflow checking to libpng.

This change moves libpng over to Clang in order to take advantage
of its stronger -ftrapv option, causing the code to abort rather
than allowing a signed integer overflow.

Change-Id: Ia9573f41f3d14ac3123be1e2c7b17cc8338c69b8