[Mesa-dev] [Mesa-maintainers] Underlinking issues in 18.0.0~rc3

[Igor Gnatenko]

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On Thu, 2018-02-08 at 23:58 +0000, Emil Velikov wrote:
> On 8 February 2018 at 23:02, Igor Gnatenko
> <ignatenkobrain at fedoraproject.org> wrote:
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> > 
> > I've tried to update mesa to 18.0.0~rc3 in Fedora Rawhide, but that fails
> > with
> > a lot of "undefined reference" errors. Any hints for available patch?
> > 
> > https://kojipkgs.fedoraproject.org//work/tasks/2888/24852888/build.log
> 
> That's strange. Nothing specific comes to mind wrt these errors
> (missing xcb dependencies in the VL targets).
> Can you please confirm that the exact same build recipe works on other
> Fedora versions?

Yes, it does... But there are a lot of differences between F27 and F28:
* llvm (5.0.1 → 6.0.0~rc1)
* gcc (7.3.1 → 8.0.1)
* glibc (2.26 → 2.27

> Having a quick look at the build log - I'm suspecting that the
> static-libstdc++ workaround that you guys have might be causing
> side-effects.
> Speaking of which ... we should really revisit and merge something
> like it in Mesa.

I've tried to remove it and build fails with:
/usr/bin/ld: glsl/main.o: relocation R_X86_64_32S against `.rodata' can not be
used when making a shared object; recompile with -fPIC

Then added -fPIC to CFLAGS... And it failed with same "undefined error"
messages.

Seems it was done to workaround Steam bundling its own libstdc++.
https://src.fedoraproject.org/rpms/mesa/c/e443b9d8776c56a7943dd501cbcb16bc92c73
22f
- -- 
- -Igor Gnatenko
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