posix threads error

[Kaz Kylheku]

From: "Kaz Kylheku" <kaz@zeugmasystems.com>
> From: "Lucas Prado Melo" <lucaspm@dcc.ufba.br>:
>>    if( pthread_mutex_init(&( pck.mutex), NULL) != 0 )
>>        die("pthread_mutex_init");
> 
> You forgot:
> 
>  pck.stck = NULL;  /* create empty stack */

Pardon me,

  /* initialize stack to empty state using appropriate API. */
  stackInit(&pck.stck);

:)