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Date: Sun, 17 Jun 2012 09:00:27 -0700
From: Isaac Dunham <>
Subject: Re: perl 5.16 shm working right?

On Sun, 17 Jun 2012 10:44:51 -0400
Rich Felker <> wrote:

> On Sun, Jun 17, 2012 at 07:28:54AM -0700, Isaac Dunham wrote:
> > hello,
> > I built perl 5.16.0 (defaults to ansi c89, but needs
> > SIG_BLOCK...used -D_GNU_SOURCE -std=gnu99, but _POSIX_C_SOURCE +
> > -std=c99 is probably enough)
> > Still using gcc-3.4 (with -Os)
> > 
> > 10 tests failed, including both shm tests. 
> > So I'm wondering if the shm support is fully working, or if that's
> > just
> For the record, this is legacy sysv shm, not modern POSIX shm. Are you
> on a 32- or 64-bit machine? I'm guessing some of the structures and
> padding might be messed up on 64-bit, although I thought we looked
> into and fixed that a while back.
Atom/32-bit x86.
I have only one computer out of 3 that supports 64-bit and it has 3 GB
RAM (until recently, 1 GB), so I haven't bothered trying 64-bit (partly
so I can share kernels and binaries, partly thanks to pointer bloat,
partly because I use dosemu with vm86 on them, and partly just

Isaac Dunham

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