[ping] libatomic: Fix sub-word CAS synthesis on LP64 targets

[Andrew Waterman]

Thank you for approving the patch.  I neglected to mention that I do
not have write access.  Would you or someone else be so kind as to
commit this?

On Fri, Nov 7, 2014 at 5:20 AM, Richard Henderson <rth@redhat.com> wrote:
> On 11/06/2014 09:24 PM, Andrew Waterman wrote:
>> 2014-10-23  Andrew Waterman <waterman@cs.berkeley.edu>
>>
>>   * cas_n.c (libat_compare_exchange): Add missing cast.
>
> Ok.
>
>
> r~