Re: How to generate a config.h with ONLY my #defines?

[Bob Friesenhahn]

On Fri, 21 Oct 2011, Joakim Tjernlund wrote:

> I want to control the exact contents of this file to only hold the
> explicit AC_DEFINE's I do in configure.ac so I can avoid any symbol
> collisions.
>
> Is this possible somehow?

Yes, and no.  This is how I do it in GraphicsMagick:

# Generate configure header.
AC_CONFIG_HEADERS([magick/magick_config.h magick/magick_config_api.h])

The first listed configuration header is automatically managed by 
Autoconf and includes whatever it prefers.  The second listed 
configuration header is managed by me and requires a 
manually-maintained magick_config_api.h.in file, which must be a 
subset of configuration defines from the first listed file.

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