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Message-ID:	<3D220456.4020004@ece.gatech.edu>
Date:	Tue, 02 Jul 2002 15:51:50 -0400
From:	Charles Wilson <cwilson AT ece DOT gatech DOT edu>
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To:	Nicholas Wourms <nwourms AT yahoo DOT com>
CC:	cygwin AT cygwin DOT com
Subject:	Re: Autoconf wrapper issues
References:	<20020702184814 DOT 13390 DOT qmail AT web21007 DOT mail DOT yahoo DOT com>

Nicholas Wourms wrote:

> In my case:
> autoconf --trace=AC_SUBST:'    AC_SUBST([$1])' | sort -u
> or
> autoconf -t AC_SUBST:'    AC_SUBST([$1])' | sort -u
> 
> Returns:
> autoconf: invalid number of arguments.
> Try `autoconf --help' for more information.
> 
> However, autoconf --help shows that -t/--trace= is a valid option, so I
> know the wrapper is identifying the desired autoconf as 2.53.  The same
> command works fine with the same source on my linux box, incidently.  I
> thought I'd see if anyone has seen this before...

in the wrapper script, we have to munge single-quote characters heavily. 
  It's possible I missed something -- here's the relevant code:

     --trace=* | -t?* )
        traces="$traces '"`echo "$optarg" | sed "s/'/'\\\\\\\\''/g"`"'"
        shift ;;
     --trace | -t )
        test $# = 1 && eval "$exit_missing_arg"
        shift
        traces="$traces '"`echo "$1" | sed "s/'/'\\\\\\\\''/g"`"'"
        shift ;;

and later:

if [ "x$traces" != "x" ] ; then
   opt_traces="--trace=$traces"
fi

A few quick tests (editing the wrapper script to "echo" instead of 
"exec") show that something is not right...but I can't track it down 
right now -- and trace is fairly infrequently used.

For now, either track down the problem and send in a patch :-) or just 
set PATH=/usr/autotool/devel/bin:${PATH} ...

--Chuck


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