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Re: [Bug-gnubg] Is anyone else seeing ylwrap problems building gnubg?

From: Michael Petch
Subject: Re: [Bug-gnubg] Is anyone else seeing ylwrap problems building gnubg?
Date: Tue, 10 Aug 2004 10:43:47 -0600

I looked at this. One of the problems is that when ylwrap is called the
file y.tab.c is specified on the command line. The file doesn't exist so
ylwrap exits with a status of 1.

The ylwrap code that returns the error result code is interesting:

         # A missing file is only an error for the first file.  This
         # is a blatant hack to let us support using "yacc -d".  If -d
         # is not specified, we don't want an error when the header
         # file is "missing".
         if test $first = yes; then

On Thu, 2004-08-05 at 06:35, Holger wrote:
> At 13:36 03.08.2004, Jon Kinsey wrote:
> >Øystein O Johansen wrote:
> >
> >>Was there a solution to the ylwrap problem? I still have the problem at my
> >>new RHEL here. What should I do?
> >>(I'm running bison manually to skip the compile error)
> >
> >I can't remember the exact problem, but I'm sure it was my changes that 
> >caused it...
> >
> >I think one solution was to not use ylwrap - I'm pretty sure yacc has a 
> >%output option too.
> Last week or so I finally got around to trying Jim's tips to see what went 
> wrong with ylwrap. The first ylwrap problem can be solved by deleting 
> "%output="external_y.c" from external_y.y, as had been said before.
> But also from the output of set -x I have no clue what's (rather not) 
> happening when making external_l.c. However, I got around it by removing 
> the target and rule in Makefile for ".l.c". Then make applies the following 
> auto rule which works here:
> flex  -t external_l.l > external_l.c
> Btw, just a note: There's no column(1) on Solaris 9, it seems. But nothing 
> fatal and only has impact on show version.
> Regards,
>          Holger 
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Mike Petch
CApp::Sysware Consulting Ltd.
Suite 1002,1140-15th Ave SW.
Calgary, Alberta, Canada.
T2R 1K6.

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