[liblouis-liblouisxml] Re: Building for inclusion of the libraries in applications
- From: "John J. Boyer" <john.boyer@xxxxxxxxxxxxxxxxx>
- To: liblouis-liblouisxml@xxxxxxxxxxxxx
- Date: Mon, 10 Jun 2013 06:41:26 -0500
The libraries are intended for inclusion in aplications. The build
procedure should take account of this fact. It should not have to be
done piecemeal by each application. In this respect Windows has an
advantage over Linux and the Mac. The locations of dependencies are not
hard-coded in dll's.
We need more opinionns on this. The changes would simply cause libraries
and tools to look for their dependencies in the same directory in which
they themselves reside. How would this complicate the lives of
packagers?
John
On Mon, Jun 10, 2013 at 10:39:38AM +0200, Christian Egli wrote:
> "John J. Boyer" <john.boyer@xxxxxxxxxxxxxxxxx> writes:
>
> > As things are now we have to have separate build scripts for
> > applications like the Daisy Pipeline and BrailleBlaster, because the
> > standard build script causes liblouisutdml.so to look in /usr/local/lib
> > for liblouis.so . If the application is run on a different machine than
> > that on which the libraries were compiled liblouis.so will not be in
> > /usr/local/lib and the application will crash.
>
> It will crash because the user failed to tell the program where the
> library is installed. Well then the solution is to adapt the search path
> (use LD_LIBRARY_PATH).
>
> Changing the build system of liblouis (or liblouisutdml for that matter)
> is putting the cart before the horse. It will work against the grain of
> autotools and is a hack IMHO. I still fail to understand why you cannot
> just install the libs in /usr/local/lib. Is it because you want to ship
> precompiled binaries of it all? Then why don't you just package the libs
> wherever you like and set the search path in the Daisy Pipeline and
> BrailleBlaster?
>
> I guess I really need to sit together with Bert and try to understand
> this. Unfortunately he's away this week.
>
> > Similar modifications will be needed for liblouisutdml and for the
> > tools. I think these modififications should be made in the new release
> > of liblouis.
>
> If I understand correctly changing this will unnecessarily complicate the
> life of the packagers for Linux distributions and will lessen their
> incentive to package liblouis for their distribution.
>
> Thanks
> Christian
> --
> Christian Egli
> Swiss Library for the Blind, Visually Impaired and Print Disabled
> Grubenstrasse 12, CH-8045 Zürich, Switzerland
>
> -----
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--
John J. Boyer; President, Chief Software Developer
Abilitiessoft, Inc.
http://www.abilitiessoft.com
Madison, Wisconsin USA
Developing software for people with disabilities
For a description of the software, to download it and links to
project pages go to http://www.abilitiessoft.com
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