Re: PACKAGE_URL

[Peter Johansson]

Patrick Welche wrote:
> This almost ties in with the previous post about old versions of autoconf(!)
>
> In recent autoconf >= 2.64, I can use AC_INIT to define a PACKAGE_URL. As some
> of our systems only have 2.61, I thought I would
>
> # This becomes part of AC_INIT in autoconf 2.64
> PACKAGE_URL="http://www.inference.phy.cam.ac.uk/dasher/";
> AC_DEFINE_UNQUOTED([PACKAGE_URL], ["$PACKAGE_URL"],
>                    [Define to the home page for this package.])
> AC_SUBST([PACKAGE_URL])
>
> but now I see that with e.g. autoconf 2.65, the fact that I only use an
> AC_INIT with 4 arguments means that PACKAGE_URL is defined to "", so
> my definition redefines PACKAGE_URL and then autoconf tests are unhappy
> because cpp will complain about two PACKAGE_URL variables...
>
> What is the best thing to do?
>
>   
I use the following snippet in one of my projects:

dnl FIXME remove when we assume autoconf 2.64
m4_ifndef([AC_PACKAGE_URL],
         [AC_DEFINE([PACKAGE_URL], ["http://dev.thep.lu.se/svndigest";],
                    [Define to home page for this package])
          AC_SUBST([PACKAGE_URL], ["http://dev.thep.lu.se/svndigest";])])


Cheers,
Peter

--
Peter Johansson

svndigest maintainer, http://dev.thep.lu.se/svndigest
yat maintainer,       http://dev.thep.lu.se/yat