Merge branch 't/alsa_poll_fd'

diff --cc NEWS
index 40c30bf,40c30bf..05c866b
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -20,6 -20,6 +20,7 @@@ are the highlights of this release
          tarballs. This reduces the size of the tarballs but requires
          gengetopt to build the tarball.
        - Compiles cleanly also with llvm/clang.
++      - The alsa writer used poll fds instead of computing timeouts.
        - Corrupt mp3 files are handled more gracefully.
        - sched: Optimized zero timeouts.
        - vss timeout cleanups.