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Re: Workaround for bug in QNX4

From: Eric Blake
Subject: Re: Workaround for bug in QNX4
Date: Wed, 12 May 2010 08:32:26 -0600
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[adding autoconf-patches]

On 05/11/2010 10:04 PM, Mark Hessling wrote:
> ac_delim_num=`echo "$ac_subst_vars" | grep -c '$'`
> grep -c '$' on QNX4 ALWAYS returns 0; this is the bug with grep on QNX4.
> As QNX4 is not fully supported, it is unlikely that this bug will be
> fixed, at least not in the short term.
> However, grep -c '^' works fine on QNX4 (and other platforms I've
> tested).

Thanks for the report.

> Proposed "bug" fix is to replace line 2542
> of /usr/share/autoconf/autoconf/autoconf.m4f and line 406
> of /usr/share/autoconf/autoconf/status.m4 with the following line:
> ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`

Yes, that workaround looks fine.  I'm preparing a followup patch to the
manual to document the bug, then I'll push your patch shortly.

Eric Blake   address@hidden    +1-801-349-2682
Libvirt virtualization library

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