Re: #define warnings when using various autotools projects

[Bob Friesenhahn]

On Tue, 13 May 2008, aaragon wrote:
> Could you please expand on this? I don't really understand what you're
> talking about. The config.h file has just a bunch of #define statements and
> there is no namespace (and I don't think that hardcoding one is the way
> out).

I use this in configure.ac:

AC_CONFIG_HEADERS([magick/magick_config.h magick/magick_config_api.h])

with magick/magick_config.h being used to build the software, and 
magick/magick_config_api.h installed as magick/magick_config.h at 
installation time.  The magick/magick_config_api.h.in template file 
needs to be hand-maintained and contains only what is required to 
satisfy the library headers.

It seems that I (somewhat) lied about the define naming.  As long as 
the number of definitions required is small, you can provide your own 
with a useful prefix (e.g. "ARAGON_FOO") so that they won't be 
confused with some other package's definitions.

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