Re: expand-before-require bug

[Eric Blake]

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According to Bruno Haible on 1/28/2009 3:20 PM:
>>> -# AC_DEFUN_ONCE(NAME, VALUE)
>>> +# AC_DEFUN_ONCE([NAME], VALUE)
>>>  # --------------------------
>> Lengthen the separator line by two dashes, then commit.
> 
> I disagree. Inside autoconf macro documentation, brackets denote optional
> arguments.
> 
> So this means that the first argument of AC_DEFUN_ONCE can be empty?!

No, it means that we are catering to a bug in autoconf 2.59.  How would
you propose fixing it?  (And technically, yes, autoconf allows you to
define the empty string as a macro, invokable by indir, so in that sense,
NAME really is optional, although it doesn't make much sense to omit NAME).

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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