Re: Problems building zsh on QNX 6.1

["David Wolfe" <dwolfe@xxxxxxxxxxxxxx>]

>  ... RLIMIT_RSS and RLIMIT_VMEM are both expanding to '6'.

Hmm.  I was curious about this, so I checked <sys/resource.h> on QNX 6.1:

#define RLIMIT_AS       6       /* Limit on address space size. */
#define RLIMIT_VMEM     RLIMIT_AS
#define RLIMIT_RSS      RLIMIT_AS


RLIMIT_VMEM, RLIMIT_RSS and RLIMIT_AS are all identical.  I'm guessing
this is because QNX is a realtime OS and doesn't limit how much memory
one process is allowed to use?

Anyway, I decided to roll up my sleeves and take a crack at fixing this.
It turns out that someone else had already done all the work!  I merely
copied a few lines down to where they needed to go.

I humbly submit the following patch.  (Please reply directly with
any comments, as I'm not subscribed to the list...)

- Dave


*** rlimits.c   Tue Jun  4 16:23:08 2002
--- rlimits.c.new   Tue Jun  4 16:27:52 2002
*************** bin_ulimit(char *name, char **argv, char
*** 565,571 ****
  # ifdef RLIMIT_MEMLOCK
        case RLIMIT_MEMLOCK:
  # endif /* RLIMIT_MEMLOCK */
! # ifdef RLIMIT_VMEM
        case RLIMIT_VMEM:
  # endif /* RLIMIT_VMEM */
  # ifdef RLIMIT_AIO_MEM
--- 565,573 ----
  # ifdef RLIMIT_MEMLOCK
        case RLIMIT_MEMLOCK:
  # endif /* RLIMIT_MEMLOCK */
! /* If RLIMIT_VMEM and RLIMIT_RSS are defined and equal, avoid *
!  * duplicate case statement.  Observed on QNX Neutrino 6.1.0. */
! # if defined(RLIMIT_VMEM) && (!defined(RLIMIT_RSS) || RLIMIT_RSS !=
RLIMIT_VMEM)
        case RLIMIT_VMEM:
  # endif /* RLIMIT_VMEM */
  # ifdef RLIMIT_AIO_MEM