[Openmp-dev] Build error

[Itaru Kitayama via Openmp-dev]

Following up on myself's post; as of today's main again fails to
build; do you guys prefer the logs posted at bugzilla rather than the
list?

On Thu, Jun 17, 2021 at 12:04 PM Itaru Kitayama
<itaru.kitayama at gmail.com> wrote:
>
> Hi Jon,
> Thanks for taking a look at the logs. By adding the
> `-DGCC_INSTALL_PREFIX=/p/software/jurecadc/stages/2020/software/GCCcore/9.3.0/`
> ,
> I was able to (CMake) configure and do a Ninja build using
> `-DLLVM_ENABLE_RUNTIMES="openmp"`. And yes, while I'm on JSC's JURECA
> I use
> Environmental Modules.
>
> On Wed, Jun 16, 2021 at 9:14 PM Jon Chesterfield via Openmp-dev
> <openmp-dev at lists.llvm.org> wrote:
> >>
> >> Hi,
> >> I am configuring a openmp runtime build this way:
> >>
> >>  cmake -G Ninja -DCMAKE_BUILD_TYPE=Release \
> >>         -DCMAKE_INSTALL_PREFIX=$PROJECT/kitayama1/dev/clang \
> >>         -DCLANG_OPENMP_NVPTX_DEFAULT_ARCH=sm_80 \
> >>         -DLIBOMPTARGET_NVPTX_COMPUTE_CAPABILITIES=80 \
> >>         -DCMAKE_C_COMPILER=clang \
> >>         -DCMAKE_CXX_COMPILER=clang++ \
> >>         -DLLVM_ENABLE_RUNTIMES="openmp" \
> >>         $SCRATCH/kitayama1/projects/llvm-project/llvm
> >>
> >>
> >>
> >> ... however I see a build error:
> >>
> >> ... CCcore-9.3.0/bin/ld:
> >> undefined reference to `std::_Sp_make_shared_tag::_S_eq(std::type_info
> >> const&)
> >
> >
> > Cmake invocation looks fine. It appears the static llvm libraries linked have been built with incompatible c++ flags to the other libraries found on your system.
> >
> > A few options come to mind. You could pass the flags to disable zlib et al, search for what compiler flag (or maybe libc++ version) corresponds to that symbol and pass the options to the llvm build, or look up how the other libraries were built and change that.
> >
> > Clang builds are probably tested against the libraries that ship with Linux distributions. The paths in your error message suggest you're using some other source for them. Maybe a HPC module system of some sort? Can't see how to debug that from the outside. Maybe contact whoever set up the zlib etc builds.
> >
> > Jon
> >
> > _______________________________________________
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> > Openmp-dev at lists.llvm.org
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