Don't clutter the top directory with *.o files.

This is a complete rewrite of the PulseAudio output plugin.  It uses
the asynchronous API, which gives us more control over everything.
Additionally, it connects to the PulseAudio server on startup, and
keeps this connection up while MPD runs.  During pause, instead of
closing the stream, it enables "cork".

Accidently, MPD has been using several GLib 2.16 functions for a
while, and nobody noticed yet.  To simplify the code base, let's bump
the minimum GLib version for MPD to 2.16.  That version is old enough,
and it's reasonable to expect users to have it.

This fixes mpg123 support.

This patch implements a light-weight inotify library, and watches all
directories below the music directory.  It updates all directories
where files changed after a delay of 5 seconds.

Include CoreServices/CoreServices.h.

First, this is not a nice fix. I am also not sure why the error
happens in the first place. I assume Apple deprecated some stuff in
10.6 + x86_64.

My patch simply uses the 10.5 SDK if compiling on 10.6 Snow Leopard -
which is installed by default if you install XCode 3.2 that comes with
Snow Leopard. The reason this is not a nice fix is, of course, that
this doesn't fix the problem. It just "postpones" it to the next
release of MacOS X. But, some people may need it, and its better than
nothing.

[mk: added autoconf test; fixed songlen_data_size type]

Still missing:
- seeking
- tags
- streaming
- encodings other than MPG123_ENC_SIGNED_16

The recorder plugin writes audio played by MPD to a file.  This may be
useful for recording radio streams.

This implementation is incomplete, because support for tags is
missing, and MPD should be able to record each track to a different
file.

For systems that cannot support fork() (like no-mmu Linux), use daemon() if
it is available for the daemonizing code.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

--enable means "enable", not "disable".

This encoder plugin is a replacement for the LAME encoder plugin for
those who prefer a "free" (non-patent encumbered) encoder library.
Most of the plugin source code is copied from the LAME encoder plugin,
since the LAME and TwoLAME APIs are nearly the same.

Fail when a feature is enabled, but the library is not found.

Don't append these to MPD_CFLAGS and MPD_LIBS.

We're going to extend the protocol now.  Update the protocol version.

Refuse to build with automake 1.9.  1.9 is quite old already, and I'm
too lazy to test with ancient versions.

[mk: moved check out of the AC_ARG_WITH block]