Re: Quick divert() 2.13/2.6x portability macro

[Rasmus Lerdorf]

Eric Blake wrote:
> It appears that you are asking for a way to make all --help output appear
> in the same order in which you generate it, and to be able to intersperse
> text strings of your choosing in between strings generated by AC_ARG_WITH
> and AC_ARG_ENABLE.
> 
> First, it looks like you need to use AC_PRESERVE_HELP_ORDER (added in
> 2.59c, so it will work for 2.65 but won't help you for 2.59 proper, but if
> that's the least of your worries, I can still help you with backporting it
> to 2.59 if you aren't willing to jump all the way to modern autoconf).

Aha.  If I get rid of all the divert() calls and add:

AC_PREREQ(2.60)
AC_PRESERVE_HELP_ORDER

Things are looking sane.  That doesn't work in 2.13, of course, but I
guess it would be a lot simpler to just leave that for older versions
and force people to upgrade for newer ones.

-Rasmus