Re: Release goal: Getting rid of unneeded *.la / emptying dependency_libs

[Kurt Roeckx <kurt@roeckx.be>]

On Wed, Aug 26, 2009 at 03:46:36AM -0400, Felipe Sateler wrote:
> Steve Langasek wrote:
> 
> > On Wed, Aug 26, 2009 at 02:08:40AM -0400, Felipe Sateler wrote:
> >> But this will cause trouble anyway. Imagine this case: glib changes
> >> SONAME, both app and library depend on glib. app is recompiled, gtk isn't
> >> yet.So then app NEEDED libglib-2.0.so.1, gtk NEEDED libglib-2.0.so.0.
> >> Kaboom! The only real solution is to make gtk's SONAME dependent on
> >> glib's, eg libgtk- x11-2.0.so.0-glib-1 (a la boost upstream with gcc
> >> versions).
> 
> I think I should have added that the app does not have to link directly with 
> glib.
> 
> > 
> > That's what symbol versioning is for.
> 
> >From /u/i/g/g/gtktextchild.h:
> 
> struct _GtkTextChildAnchor
> {
>   GObject parent_instance;
> 
>   gpointer GSEAL (segment);
> };
> 
> You lost anyway. If GObject or gpointer changes, symbol versioning doesn't 
> save you because _GtkTextChildAnchor is a public type

This can all be solved using symbol versioning.  Buf it will
probably require alot of work to get it right.


Kurt