libao 1.2.0 uses deprecated OS X audio APIs
Running ogg123, linked against libao 1.2, produced this warning on Mac OS X 10.11 (El Capitan):
WARNING: 140: This application, or a library it uses, is using the deprecated Carbon Component Manager for hosting Audio Units. Support for this will be removed in a future release. Also, this makes the host incompatible with version 3 audio units. Please transition to the API's in AudioComponent.h.
Looking at libao's git, it seems this was already fixedin January 2016: https://git.xiph.org/?p=libao.git;a=commit;h=0dc9485462179744d7f1acf319c417a2b3c2a54c
So I a guess I am requesting that a new release is made -- the last one is from 2014.