Re: Change to linker flags injection (#1548397)

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On Sat, Feb 24, 2018 at 10:24 AM, Florian Weimer <fweimer@xxxxxxxxxx> wrote:
> We currently inject “-z now” hidden behind a -specs= option for the gcc
> compiler driver.  libtool drops this -specs= option from the linker command
> line, but it preserves -Wl,-z,relro, so I'm trying whether listing
> -Wl,-z,now directly improves the linker flag injection here.
>
> I'm doing this in two stages and will remove -z now from the GCC specs file
> only after I have rebuilt a couple of extension builders (python2, python3,
> ruby), so that we do not lose -z now due to the non-synchronized switchover
> between the hard-coded command line (in the extension builder) and the GCC
> specs file contents (from redhat-rpm-config).
>
> This will happen both in rawhide and Fedora 28.

Are you also implementing a way to disable it, as Philip Kovacs asked
for yesterday?  I also maintain some packages that use plugins, and
are broken by -z now.  If you would like to look at any of them to see
what might be done, these are the packages that currently use
%undefine _hardened_build to work around the issue:

bigloo
gcl
polymake
polyml
xemacs (I will look at this one today, as I mentioned in bugzilla)

Thanks,
-- 
Jerry James
http://www.jamezone.org/
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