If the configured avahi service name is invalid, abort MPD.  Don't
fall back to the default service name.

srandom() and random() are not portable.  Use GLib's implementation.

Don't bother to call fstat() or isatty() on STDIN_FILENO.

redirect_stdin() is a daemonization function, and disconnecting from
the standard input is always a good idea for MPD.

Merged freeAllListenSockets() into closeAllListenSockets(), because
this is its only caller.

Disable changeToUser(), daemonize(), killFromPidFile().

On WIN32, parsePath() now simply duplicates the input string.  There
is currently nothing special we can do here.  The old code was not
portable on WIN32.

Use g_get_home_dir() to get the home directory of the current user.
This will be portable to win32.

Declare variables where they are really used.

On Windows, socket declarations reside in winsock.h and ws2tcpip.h.
The POSIX headers sys/socket.h etc. are not available.

Removed the fallback setenv() implementation for solaris.

Removed GLib logging wrappers which are not used anymore.

If a log message does not include a newline character, append it.

Only include headers which are really needed.  os_compat.h aimed to
make MPD easily portable, but was never actually made portable.

gmtime_r() is not available.

These methods are unused.

Fix for bug #1491.

I tried to search for a certain composer in my collection, but only
non-mp4 files showed up. The source code reveals that this tag is not
read. This can be fixed by reading the 'Writer' tag field, in
mp4_plugin.c, in function mp4_load_tag.

I actually tried this, and after compiling with those lines added,
also mp4 (.m4a) files showed up when searching for a composer.

All archive plugins used to overwrite $MPD_LIBS, ignoring the existing
value.  Make them append instead, keeping the old value.

Don't bother to look for libbz2, libzzip and libiso9660 if the plugins
are disabled.

We're now using GLib threading.