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Message-ID:	<1104530868.41d5cdb4750b2@webmail.wilkes.edu>
Date:	Fri, 31 Dec 2004 17:07:48 -0500
From:	fdonahoe AT wilkes DOT edu
To:	djgpp-workers AT delorie DOT com
Subject:	Re: Strange failure of egrep stub
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Reply-To:	djgpp-workers AT delorie DOT com

Quoting Eli Zaretskii <eliz AT gnu DOT org>:

 
> Which part of the test fails?  The shell script you posted invokes
> egrep 4 times.  Which ones of the invocations fail?
> 

The failure came on the very first time egrep was invoked.
Rewritten as:

egrep 'This is (ifnothtml|ifinfo|ifnottex) text' cond.out \
  >./cond-1 || exit 2

fails with 0 bytes in cond-1.

grep is never given the chance to produce its output which
would be correct!  If grep -E be substituted for egrep in
all four instances, cond-[1-4] are left with correct data
and the whole test is passed.  My conclusion is that
egrep.exe invokes the djgpp2/coff grep differently from the
unsuopported coff grep, so that exit 2 happens before grep
produces its output.

> Ultimately, judging by the symptoms you described, I think there's
> no
> way to debug this except to reproduce the problem in some simpler
> situation, and then run it under GDB to see what's going on.
> 

Regards,
Frank



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