Re: Tricking AC_DEFINE to hide template?

[Bob Friesenhahn]

On Thu, 12 May 2005, Lars J. Aas wrote:

>  Hi guys,
>
> Is there any way to make config.status know about some define and
> its value, but not put the template into config.h through AC_DEFINE?
>
> I'd like to separate system-detection-defines and user-feature-toggle-
> defines into two separate headers.  I'd set up the user-feature-toggle-
> defines header file manually, but config.status should know about the
> whole set of defines and know how to "edit" it, and not keep duplicates
> in the real config.h header if you know what I mean...

One way to do it is to specify multiple configuration headers to 
AC_CONFIG_HEADERS.  Only the first one listed is managed by 
autoheader.  Additional ones can be based on hand-maintained 
substitution headers.  The first configuration header can simply be 
ignored by the software and be informative only.

AC_CONFIG_HEADERS([discard_config.h system_config.h user_config.h])

Bob
======================================
Bob Friesenhahn
address@hidden, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/