Merge pchardin@bk-internal.mysql.com:/home/bk/mysql-5.0

static int start_process(Instance_options *instance_options,

                         My_process_info *pi)

{

#ifndef __QNX__

  *pi= fork();

#else

  /*

     On QNX one cannot use fork() in multithreaded environment and we

     should use spawn() or one of it's siblings instead.

     Here we use spawnv(), which  is a combination of fork() and execv()

     in one call. It returns the pid of newly created process (>0) or -1

  */

  *pi= spawnv(P_NOWAIT, instance_options->mysqld_path, instance_options->argv);

#endif

  switch (*pi) {

  case 0:

  case 0:                                       /* never happens on QNX */

    execv(instance_options->mysqld_path, instance_options->argv);

    /* exec never returns */

    exit(1);

  case 1:

    log_info("cannot fork() to start instance %s",

  case -1:

    log_info("cannot create a new process to start instance %s",

             instance_options->instance_name);

    return 1;

  }