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Re: [Gnash-dev] using AC_LIBLTDL_INSTALLABLE is bad...

From: Patrice Dumas
Subject: Re: [Gnash-dev] using AC_LIBLTDL_INSTALLABLE is bad...
Date: Wed, 29 Nov 2006 17:42:58 +0100
User-agent: Mutt/

On Sat, Nov 25, 2006 at 09:24:00AM -0700, Rob Savoye wrote:
> Patrice Dumas wrote:
> > I think that using AC_LIBLTDL_INSTALLABLE is bad, for example on fedora
> > this installs libltdl as part of gnash install, we really don't want that! 
> > What is wrong with AC_LIBLTDL_CONVENIENCE?
>   There is nothing wrong with with AC_LIBLTDL_CONVENIENCE. I used
> AC_LIBLTDL_INSTALLABLE because if there is an installed version of
> libltdl that gets used, and if not, then the library gets built. We
> could use AC_LIBLTDL_CONVENIENCE?, but the library always gets built.

In general (I guess on most linux distros) libltdl is not installed on 
the system since dlopen implementation is right anyway. gnash would then
install it in addition to building it.

> Course maybe that's not really an issue, since the sources have to be
> included anyway, and this library doesn't change too often.

What could be done is link against installed libltdl if it exists, otherwise
use shipped libltdl, but never install it. This is not something available,
as far as I know. To me it is less problematic not to use the system libltdl, 
especially if you take care of using a recent libltdl (libtool) when doing 
a release. 

Anyway it seems to me to be better to replace libltdl in the gnash source 
by the one coming from the system since it will be updated automatically
in that case, and there is no local modifications for gnash.


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