AS_ECHO_N in util-macros

[Jon TURNEY]

On 07/03/2012 21:01, Jon TURNEY wrote:
> On 05/03/12 20:04, Jeremy Huddleston wrote:
>> Crap, I wish I had tried this sooner.  It doesn't look likw AS_ECHO is in
>> autoconf-2.61 either:

Is there a reason why this wasn't picked up by your tinderbox?

>> configure:4861: error: possibly undefined macro: AS_ECHO
>>        If this token and others are legitimate, please use m4_pattern_allow.
>>        See the Autoconf documentation.
> 
> Yes, AS_ECHO seems to be introduced in autoconf 2.62 as well :-(
> 
> Reading the section on 'echo' in [1], I'm inclined to say that since we know
> that the cacheid neither starts with a hyphen nor contains backslashes, we can
> just use echo here.
> 
> I'm not able to write and test a patch right now.  I shall do so as soon as I
> can, unless someone beats me to it.

Looking at this again, it seems I missed a trick when I originally wrote this
change and it can be written without using echo at all.

Have I mentioned recently how much I hate shell programming? :-)

Attached is a patch for your consideration.
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