Re: Compiler baselines

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Hey,

On Mon, Dec 10, 2018 at 6:14 PM Stephan Bergmann <sbergman@xxxxxxxxxx> wrote:
On 08/12/2018 19:35, Markus Mohrhard wrote:
> Gandalf is not a CentOS based buildbot but the self-built gcc is now
> available under "/opt/rh/devtoolset-7/root/usr/bin/gcc" to reduce the
> differences between the different buildbots and make it easier to move
> jobs between different jenkins VMs. The only difference is that the gcc
> is version 8.2 instead of 7.3.
>
> Additionally, I have now also used the same CC and CXX setting for the
> random config build bot
> (https://cgit.freedesktop.org/libreoffice/core/commit/?id=ceb32911f07b63fda074facba377eeb4d5946cdf).
> Based on that I think gandalf can be used again for the tinderbox job
> and therefore hopefully take a bit of load of the gerrit build machines.

But shared libs and executables built with that CXX, when executed
during the build, will pick up an older libstdc++.so.6 from the system
(and thus fail when they use functionality not present in the old
libstdc++ version), no?

Just to document it here. I have adapted ld.so.conf to contain references to  /opt/rh/devtoolset-7/root/usr/lib and /opt/rh/devtoolset-7/root/usr/lib64. That ensures that always the new libstdc++ from the gcc8 build is picked up.

Regards,
Markus
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