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Date: Wed, 17 Dec 2008 09:32:17 +0000
From: John Haxby <john.haxby@oracle.com>
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Subject: Re: [Qemu-devel] configure echo usage
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To: qemu-devel@nongnu.org

Lev Lvovsky wrote:
>
> bash-3.2$ svn diff configure
> Index: configure
> ===================================================================
> --- configure   (revision 6069)
> +++ configure   (working copy)
> @@ -1094,8 +1094,7 @@
>  test -f $config_h && mv $config_h ${config_h}~
>
>  echo "# Automatically generated by configure - do not modify" > 
> $config_mak
> -echo -n "# Configured with:" >> $config_mak
> -printf " '%s'" "$0" "$@" >> $config_mak
> +printf "# Configured with: $0 $@" >> $config_mak
>  echo >> $config_mak
>  echo "/* Automatically generated by configure - do not modify */" > 
> $config_h
>
>
>


That doesn't give the same output: the original puts each of $0 and the 
$@'s with single quotes around them in the config file, yours misses out 
the quotes.   Replacing the original echo -n, printf and echo like this 
would work though:

    echo "# Configured with:$(printf " '%s'" "$0" "$@")" >> $config_mak

If the OS X shell doesn't do $(...) then this will work, albeit at the 
cost of readabilty

    echo "# Configured with:"`printf " '%s'" "$0" "$@"` >> $config_mak

(those pesky backquotes are harder to see and for the ultra-picky it's 
not quite the same thing).

jch