Hartmut Goebel <h.goebel@crazy-compilers.com> writes:

> Hi guix!
>
> I have a package installing a lib as …/lib/plasma/libDiscoverCommon.so
> and a second lib as …/lib/other/lib.so.
>
> Building and linking works fine, but phase `validate-runpath' fails with:
>
> "…/other/lib.so depends on 'libDiscoverCommon.so', which cannot be found
> in RUNPATH".
>
> I  checked the RUNPATH shown in this error-message and it includes the
> correct output of this package. But the RUNPATH only includes "…/lib",
> not "…/lib/plasma" – I don't know if this matters.
>
> It is one of the KDE packages, using the cmake-build-system, which did
> not show this kind of errors (for me).  libDiscoverCommon.so was
> installed to the correct output of this package.
>
> I tried setting linker flags, as I've seen in other packages, but this
> did not help.
>
> How to solve this?

Cmake has a couple of options for controlling RUNPATH.

https://cmake.org/Wiki/CMake_RPATH_handling

See e.g. 'ceph' for a similar example. Would that approach work?