Tests fail to compile: error: undefined symbol: Kokkos::OpenMP::OpenMP(), etc

[yurivict]

Kokkos was configured with OpenMP on (-DKokkos_ENABLE_OPENMP=ON):

-- Built-in Execution Spaces:
--     Device Parallel: NoTypeDefined
--     Host Parallel: Kokkos::OpenMP
--       Host Serial: SERIAL

but clad tests fail to compile:

ld: error: undefined symbol: Kokkos::OpenMP::OpenMP()
>>> referenced by ParallelReduce.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ParallelReduce.cpp.o:(Kokkos::RangePolicy<Kokkos::OpenMP>::RangePolicy<int, unsigned long, false>(int, unsigned long))
>>> referenced by ParallelReduce.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ParallelReduce.cpp.o:(Kokkos::RangePolicy<Kokkos::OpenMP>::set_auto_chunk_size())
>>> referenced by ParallelReduce.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ParallelReduce.cpp.o:(Kokkos::RangePolicy<Kokkos::OpenMP>::RangePolicy<int, int, false>(int, int))
>>> referenced 54 more times

ld: error: undefined symbol: Kokkos::initialize(int&, char**)
>>> referenced by main.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/main.cpp.o:(main)

ld: error: undefined symbol: Kokkos::finalize()
>>> referenced by main.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/main.cpp.o:(main)

ld: error: undefined symbol: Kokkos::Impl::log_warning(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&)
>>> referenced by ParallelReduce.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ParallelReduce.cpp.o:(void Kokkos::RangePolicy<Kokkos::OpenMP>::check_conversion_safety<int>(int))
>>> referenced by ParallelReduce.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ParallelReduce.cpp.o:(Kokkos::RangePolicy<Kokkos::OpenMP>::check_bounds_validity())
>>> referenced by ParallelReduce.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ParallelReduce.cpp.o:(Kokkos::MDRangePolicy<Kokkos::OpenMP, Kokkos::Rank<2u, (Kokkos::Iterate)2, (Kokkos::Iterate)1>>::init_helper(Kokkos::Impl::TileSizeProperties))
>>> referenced 13 more times

ld: error: undefined symbol: Kokkos::OpenMP::concurrency(Kokkos::OpenMP const&)
>>> referenced by ParallelReduce.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ParallelReduce.cpp.o:(Kokkos::RangePolicy<Kokkos::OpenMP>::set_auto_chunk_size())
>>> referenced by ViewAccess.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ViewAccess.cpp.o:(Kokkos::RangePolicy<Kokkos::OpenMP, Kokkos::IndexType<int>>::set_auto_chunk_size())
>>> referenced by ViewAccess.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ViewAccess.cpp.o:(Kokkos::RangePolicy<Kokkos::OpenMP, Kokkos::IndexType<long>>::set_auto_chunk_size())

ld: error: undefined symbol: Kokkos::Tools::Experimental::get_callbacks()
>>> referenced by ViewBasics.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ViewBasics.cpp.o:(void Kokkos::deep_copy<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace>(Kokkos::View<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace> const&, Kokkos::ViewTraits<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace>::const_value_type&, std::__1::enable_if<std::is_same_v<Kokkos::ViewTraits<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace>::specialize, void>, void>::type*))
>>> referenced by ViewBasics.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ViewBasics.cpp.o:(void Kokkos::deep_copy<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace>(Kokkos::View<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace> const&, Kokkos::ViewTraits<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace>::const_value_type&, std::__1::enable_if<std::is_same_v<Kokkos::ViewTraits<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace>::specialize, void>, void>::type*))
>>> referenced by ViewAccess.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ViewAccess.cpp.o:(void Kokkos::deep_copy<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace>(Kokkos::View<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace> const&, Kokkos::ViewTraits<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace>::const_value_type&, std::__1::enable_if<std::is_same_v<Kokkos::ViewTraits<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace>::specialize, void>, void>::type*))
>>> referenced 10 more times

ld: error: undefined symbol: Kokkos::Tools::make_space_handle(char const*)
>>> referenced by ViewBasics.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ViewBasics.cpp.o:(void Kokkos::deep_copy<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace>(Kokkos::View<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace> const&, Kokkos::ViewTraits<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace>::const_value_type&, std::__1::enable_if<std::is_same_v<Kokkos::ViewTraits<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace>::specialize, void>, void>::type*))
>>> referenced by ViewBasics.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ViewBasics.cpp.o:(void Kokkos::deep_copy<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace>(Kokkos::View<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace> const&, Kokkos::ViewTraits<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace>::const_value_type&, std::__1::enable_if<std::is_same_v<Kokkos::ViewTraits<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace>::specialize, void>, void>::type*))
>>> referenced by ViewAccess.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ViewAccess.cpp.o:(void Kokkos::deep_copy<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace>(Kokkos::View<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace> const&, Kokkos::ViewTraits<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace>::const_value_type&, std::__1::enable_if<std::is_same_v<Kokkos::ViewTraits<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace>::specialize, void>, void>::type*))
>>> referenced 7 more times

ld: error: undefined symbol: Kokkos::Tools::beginDeepCopy(Kokkos_Profiling_SpaceHandle, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, void const*, Kokkos_Profiling_SpaceHandle, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, void const*, unsigned long)
>>> referenced by ViewBasics.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ViewBasics.cpp.o:(void Kokkos::deep_copy<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace>(Kokkos::View<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace> const&, Kokkos::ViewTraits<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace>::const_value_type&, std::__1::enable_if<std::is_same_v<Kokkos::ViewTraits<double** [3], Kokkos::LayoutLeft, Kokkos::HostSpace>::specialize, void>, void>::type*))
>>> referenced by ViewAccess.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ViewAccess.cpp.o:(void Kokkos::deep_copy<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace>(Kokkos::View<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace> const&, Kokkos::ViewTraits<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace>::const_value_type&, std::__1::enable_if<std::is_same_v<Kokkos::ViewTraits<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace>::specialize, void>, void>::type*))
>>> referenced by ViewAccess.cpp
>>>               unittests/Kokkos/CMakeFiles/KokkosTests.dir/ViewAccess.cpp.o:(void Kokkos::deep_copy<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace, double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace>(Kokkos::View<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace> const&, Kokkos::View<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace> const&, std::__1::enable_if<std::is_void_v<Kokkos::ViewTraits<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace>::specialize> && std::is_void_v<Kokkos::ViewTraits<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace>::specialize> && ((unsigned int)(ViewTraits<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace>::rank) != 0 || (unsigned int)(ViewTraits<double* [4], Kokkos::LayoutLeft, Kokkos::HostSpace>::rank) != 0), void>::type*))
>>> referenced 2 more times

clad-1.8
kokkos-4.5.00
FreeBSD 14.2

[yurivict]

Probably duplicate of #993