Re: [] in AC_HELP_STRING

[Tim Van Holder]

On 20 Jul 2001 10:23:25 +0200, Akim Demaille wrote:
> >>>>> "Ralf" == Ralf Corsepius <address@hidden> writes:
> 
> Ralf> Hi, A simple question:
> 
> Ralf> How to write '[' and ']' in AC_HELP_STRING with autoconf-2.5x?
> 
> Ralf> Background: I would like to use a help string (configure --help)
> Ralf> similar to this:
> 
> Ralf> --enable-some-feature=[foo|bar] explanation [default:foo]
> 
> You just cannot do it properly currently.  This macro was an error :(
> 
> I would just write it by hand.

You can use quadrigraphs:

AC_ARG_WITH(blah, AC_HELP_STRING([--with-blah@<:@=bleh@:>@], [foobar]))

Unfortunately, AC_HELP_STRING does the length check before the
quadrigraphs get squashed, so the help text will often be moved to the
next line when it doesn't actually have to.
AC_HELP_STRING is actually quite nice, IMHO (and will cause user options
to fit in nicely even if a new version of autoconf changes the --help
layout).

--
Tim Van Holder - Anubex N.V.
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