On both locations, the result of write() can be ignored safely.  In
event_pipe_emit_fast(), that can only be "EAGAIN", which means that
the pipe buffer is full - no further notification required.  In
client_init(), that would be a fatal connection error, which would be
caught by the next event.

This patch fixes gcc warnings.

g_set_error() is a printf-like function, and expects a format string.
Using the return value of gai_strerror() is unsafe.

Move the declaration of "i" into the "for" loop.

The environment variable MAKE can be set by the caller process, and
may be used to pass a concurrency value (-j).

Cuesheets are often saved as vorbis comment
flac files (CUESHEET=.. case doesn't matter).
We can parse this now and use the information to
tag the subtracks (from the embedded cuesheets).

Autoconf/automake support for libcue which
is needed for cue/cue_tag.h/.c.
Libcue will have/has pkg-config support
so this is fairly straightforward.

With these methods a tag struct can be created
from the cdtext information in a cue sheet.
The methods depend on a cue parsing library.
Reading from strings (char*) as well as from
a file (FILE*) is supported.

This is a little ugly, but as nextSongInPlaylist is both called when
queued is update (in case playlist ended) and for user "next" command,
there isn't any other (simple) solution

Consume mode removes each song played

In the MPD_AUTO_DISABLED() function, I forgot to check for "explicitly
disabled".

Ths usual defaults updates, this includes clarifications, cleanups, updates
and fixes.

MPD_AUTO_PKG() runs pkg-config and then forwards control to
MPD_AUTO_RESULT().  This is a commonly used short cut.

Don't add those to MPD_CFLAGS and MPD_LIBS.

Don't add those to MPD_CFLAGS and MPD_LIBS.

Don't add those to MPD_CFLAGS and MPD_LIBS.