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Re: What does 'broken pipe' mean in Bison 1.85?

From: Barb Hawes
Subject: Re: What does 'broken pipe' mean in Bison 1.85?
Date: Fri, 3 Dec 2004 10:03:11 -0800 (PST)

Just to follow up.

There appear to be 2 ways to get rid of the "Broken
Pipe" message:
1) Install an earlier version of Bison
2) Install GNU m4
Both solve the problem.

Originally, I was using a precompiled version of
Bison.  I did try downloading the source for Bison
1.875 and noticed that there was a nice error message
during the ./configure that said GNU m4 was required. 

Unfortunately, the site from which I downloaded the
precompiled source didn't pass on this requirement.  I
asked that site to add the requirement for GNU m4 to
its bison description.  

Thanks again to everyone who responded to my original

Barb Hawes
SMSU Lab Administrator

--- Hans Aberg <address@hidden> wrote:

> This is most likely the reason, as the Bison-to-M4
> pipe is, as far as I
> know, the only pipe that Bison currently uses. It
> then needs a more
> informative diagnostics, perhaps
>     Bison to M4 pipe broken.
> I have added a few more cc's to the Bison
> developers, so that perhaps
> somebody fixes it.
> On 2004/11/30 08:27, Tim Van Holder at
> address@hidden wrote:
> > Barb Hawes wrote:
> >> Hi,
> >> I've looked everywhere I can think of for an
> answer
> >> to this question.  Most people are asking how to
> get
> >> rid of it (install previous version), but I'd
> like to
> >> know what it means.
> >> Thanks.
> >> Barb Hawes
> >> SMSU Lab Administrator
> > 
> > Recent version of bison use m4 as a subprocess to
> do much
> > of the work.  Since a broken pipe means one end of
> a pipe
> > dies prematurely, my guess is that you either
> don't have
> > m4 installed, or that your m4 isn't GNU m4.  If
> that is
> > the case, Bison should really give a better error
> though.
> > 
> > 
> > _______________________________________________
> > address@hidden

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