[nas] [PATCH] Fix warnings about 'free' in nasd on GNU/Linux x86

[Erik Auerswald]

Hello Marcos,

thanks for your review!

On Fri, Aug 16, 2013 at 03:25:49PM +0200, Marcos Mayorga wrote:
> what does xfree that doesn't do free? is it NAS a component that require X?

xfree() is a wrapper around free() that checks for a NULL pointer first.
This is not needed on GNU/Linux.

> 2013/8/16 Erik Auerswald <auerswal at unix-ag.uni-kl.de>
> >
> > the attached patch fixes the following warnings about 'free' when
> > compiling NAS on GNU/Linux x86 (32 bit):
> >
> > ---8<---
> > uevents.c: In function ‘ProcessAudioEvents’:
> > auevents.c:149: warning: incompatible implicit declaration of built-in
> > function ‘free’
> > auevents.c: In function ‘AuDequeueEvents’:
> > auevents.c:249: warning: incompatible implicit declaration of built-in
> > function ‘free’
> > connection.c: In function ‘open_unix_socket’:
> > connection.c:585: warning: incompatible implicit declaration of built-in
> > function ‘free’
> > connection.c:608: warning: incompatible implicit declaration of built-in
> > function ‘free’
> > ---8<---

In these files, the xfree symbol is defined, but the free symbol is
not. Adding an #include <stdlib.h> resulted in a compile error, thus
the use of xfree.

Thanks,
Erik
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