Re: -z defs linker flag activated in Fedora rawhide

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On Thu, Jan 25, 2018 at 09:03:34AM +0000, Tom Hughes wrote:
> On 25/01/18 08:41, Richard W.M. Jones wrote:
> >On Thu, Jan 25, 2018 at 08:31:29AM +0100, Remi Collet wrote:
> >>Le 22/01/2018 à 16:24, Florian Weimer a écrit :
> >>>I updated redhat-rpm-config to instruct ld to reject linking shared
> >>>objects with undefined symbols.  Such undefined symbols break symbol
> >>>versioning because the are not necessarily bound to the correct symbol
> >>>version at run time.  (rhbz#1535422)
> >>
> >>So this break all the PHP stack build...
> >>
> >>(all php extensions are dl open plugins, relying on symbol from the engine)
> >
> >I think the -z defs change should be reverted.  It breaks very long-
> >standing expected behaviour of linkers and there's been no proper
> >justification for doing it.
> 
> Other than detecting cases where shared libraries were missing
> NEEDED entries for other shared objects that they use?

I can't remember now what it's called but there's another way to do
that which all other distros except Fedora use.

Rich.

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