Re: RFC: -Wl,--as-needed by default

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On Mon, Nov 13, 2017 at 11:52:14AM +0100, Björn 'besser82' Esser wrote:
> Am Montag, den 13.11.2017, 11:02 +0100 schrieb Igor Gnatenko:
> > Hello,
> > 
> > I'm interested why we still don't have this flag in our CFLAGS? It
> > seems that
> > other distributions like openSUSE enable it by default and it helps
> > in many
> > cases to avoid over-linking (for example, see thread about poppler).
> > 
> > Are there any reasons not to add it?
> 
> 
> Hello Igor,
> 
> that specific flag should be in LDFLAGS, but there are reasons, we do
> NOT have it in there, because it will likely break any binaries built
> from or containing FORTRAN sources.  They will simply SEGFAULT, because
> `-Wl,--as-needed` causes some needed runtime libraries NOT being linked
> with them, because the linker thinks they are not needed / would over
> link.

What % of our distro involves fortran though ? Could this be as simple as
enabling it by default, but having an easy way via an RPM macro to opt-out
of it in the handleful of packages that matter wrt fortran. 

Regards,
Daniel
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