Re: [PATCH 07/12] use a shell function for AC_CHECK_HEADER

[Paolo Bonzini]

> * Paolo Bonzini wrote on Mon, Oct 27, 2008 at 11:16:12PM CET:
>> Ralf Wildenhues wrote:
>>> It looks to me like overall, the shell function changes will make user
>>> code even more reliant on correct M4 quotation than before.
>> Why?
> 
> Because the changes introduce more elaborate M4 constructions overall,
> relying more on correct user-side quoting than was needed before.
> At least that's my impression, I do not have hard data for this.

But the elaborate stuff is hidden in the definition of shell functions,
which is the same for all configure scripts; the actual expansion of
macros (which now just do calls to the functions) is simplified, do not
go through zillions of macros before something is actually done.  So I
expected the other way round, though I don't have hard data either.

> Don't get me wrong, I'm not trying to criticize.

I knew. :-)

Paolo