[syslog-ng] linking changes

[Corinna Vinschen]

On Mar  2 10:47, Balazs Scheidler wrote:
> On Wed, 2011-03-02 at 09:57 +0100, Corinna Vinschen wrote:
> > On Mar  1 19:23, Balazs Scheidler wrote:
> > > So the general idea is:
> > >   * everything gets linked into the main syslog-ng binary and
> > > libsyslog-ng.so/libivykis.so is not used.
> > >   * even some of the selected modules can be linked in, which is a
> > > performance win
> > > 
> > > The issue with that is that the final link probably can't be performed
> > > by libtool, I've just manually edited the command line that it emitted.
> > > 
> > > I guess this can be a good solution for cygwin too, and will probably
> > > not be available for all platforms.
> > 
> > Thanks for the info.  I'm curious how this will work.
> 
> well, something along the lines of
> 
> --enable-static --disable-shared
> 
> and some libtool magic to get all .a files linked into the syslog-ng
> binary with -Wl,--whole-archive
> 
> This doesn't need PIC compilation (as the .a files will be linked into
> the main executable) and can be done even for embedded libraries.
> 
> plugin loading would work on platforms where the .so files can use
> symbols from the executable:
>   * this is the case on Linux
>   * this is definitely not the case on AIX
>   * on cygwin, if my guess is right, this will not work, so there all
> syslog-ng plugins must be linked in statically too.
> 
> The alternative is to introduce ivykis as a separate package on cygwin.
> Would that be a doable alternative?

We only allow packages in the distro for which we have a an active
maintainer.  If you're willing to package and maintain ivykis for
Cygwin, or if you have somebody who's willing to do so, then that
would be a doable solution, yes.

I gave ivykis a quick whirl, but it doesn't build on Cygwin because
Cygwin has no support for pthread_spinlocks so far.


Corinna

-- 
Corinna Vinschen
Cygwin Project Co-Leader
Red Hat