Compilation error in CI when building Konqueror for KF6 on linux

[Albert Astals Cid]

El diumenge, 8 d’octubre de 2023, a les 18:20:00 (CEST), Stefano Crocco va 
escriure:
> Hello to everyone,
> I successfully ported Konqueror to KF6, at least to the point that, on my
> system, it compiles correctly. However, when the CI tries to build it on
> linux, it fails with the following error:

Which branch is that?

Cheers,
  Albert

> 
> /usr/lib64/gcc/x86_64-suse-linux/13/../../../../x86_64-suse-linux/bin/ld:
> ../../lib/libkcm_konqhtml_static.a(mocs_compilation.cpp.o): relocation
> R_X86_64_32S against `.rodata' can not be used when making a shared object;
> recompile with -fPIC
> 
> The full build log is in the attachment; the error is on line 1674.
> 
> This error doesn't happen when I try to compile Konqueror on my system,
> which seems to have the same gcc version as the CI and doesn't happen on
> the CI with freebsd and with the KF5 version, despite the fact that the, as
> far as I can tell, involved code hasn't changed.
> 
> It seems that the error comes from the attempt to link several plugins
> (actually KCMs) to a static library (kcm_konqhtml_static).
> 
> Searching on Google, I found that the suggested solution for this kind of
> error is to add the -fPIC compilation flag when building the static library.
> I tried to do so and it worked but I'd like to understand whether this
> actually is the correct solution and why the issue only happens on the CI
> linux build for KF6 and not on the CI builds for KF5, on the CI freebsd
> build for KF6 and on my system. Can anyone give me some hints about this?
> 
> Thanks in advance
> 
> Stefano