prefschema, clang, UBSAN - fails to build - libperfschema.a(pfs_instr.cc.o):(.data+0x63b8): undefined reference to `typeinfo for THD'

$ cmake -DWITH_UBSAN=ON .

-- Running cmake version 3.17.3

-- MariaDB 10.5.4

-- Performing Test have_C__fsanitize_undefined__fno_sanitize_alignment__U_FORTIFY_SOURCE__DWITH_UBSAN

-- Performing Test have_C__fsanitize_undefined__fno_sanitize_alignment__U_FORTIFY_SOURCE__DWITH_UBSAN - Success

-- Performing Test have_CXX__fsanitize_undefined__fno_sanitize_alignment__U_FORTIFY_SOURCE__DWITH_UBSAN

-- Performing Test have_CXX__fsanitize_undefined__fno_sanitize_alignment__U_FORTIFY_SOURCE__DWITH_UBSAN - Success

-- Wsrep-lib version: 1.0.0

...

[ 82%] Building CXX object storage/perfschema/unittest/CMakeFiles/pfs_user-oom-t.dir/pfs_user-oom-t.cc.o

[ 82%] Linking CXX executable pfs_instr-oom-t

/usr/bin/ld: ../libperfschema.a(pfs_instr.cc.o):(.data+0x63b8): undefined reference to `typeinfo for THD'

/usr/bin/ld: ../libperfschema.a(pfs_instr.cc.o):(.data+0x6428): undefined reference to `typeinfo for THD'

/usr/bin/ld: ../libperfschema.a(pfs_instr.cc.o):(.data+0x6498): undefined reference to `typeinfo for THD'

$ clang++-9 --version

clang version 9.0.1 (Fedora 9.0.1-2.fc31)