On Wed, 2010-01-13 at 10:52 -0800, Roland McGrath wrote:
> ----- "Jussi Lehtola"
<jussilehtola(a)fedoraproject.org> wrote:
> >
> > So is --as-needed within the current default flags?
>
> As far as I know, no. The default will still be --no-as-needed.
That's correct. This change does not affect --as-needed at all.
> The --as-needed flag will link libraries if
> A) they define symbols required by object files
> B) those symbols are still undefined when the library is checked
That's correct. In other words, the libfoo.so DSO will only be used at
runtime if the presence of -lfoo at link time actually had any effect on
what symbols got resolved to what. But --as-needed is not really apropos
in this thread.
OK, if RPM picks only the libraries that are actually used in
auto-requires, then there's no connection. Otherwise the situation would
be a whole lot different, since the requires might have some bloat.
--
Jussi Lehtola
Fedora Project Contributor
jussilehtola(a)fedoraproject.org