cppStellarium/stellarium #3896Not a task: not reproduced

After threaded Solar System PR merge linking on Linux g++-11 fails

envgap__Stellarium__stellarium-3896

Original GitHub issue ↗Dated source checkout ↗Opened 2024-09-16

01 / FAILURE SIGNATURE

As reported upstream

/usr/include/tbb/task_arena.h:449: undefined reference to `tbb::interface7::internal::task_arena_base::internal_current_slot

Not a benchmark task.

In a clean container the reported failure did not reproduce, or the known fix did not make the project run.

02 / ENVIRONMENT RECIPE

Base commit: 15c31043e1dca406a4034f698bfbc686b40c5b11
Manifest: src/CMakeLists.txt
Reproduce: Awaiting issue-specific recipe
Run under trace: Awaiting a meaningful runtime command

03 / ORIGINAL ISSUE TEXT

Stellarium/stellarium #3896 · read the original issue

I get the following error on Ubuntu 20.04, g++ 11.4.0-2ubuntu1~20.04:

```

/usr/include/tbb/task_arena.h:449: undefined reference to `tbb::interface7::internal::task_arena_base::internal_current_slot

```



If I comment out `#include <execution>`, linking succeeds. Also note that I get this:

```

-- Checking that std::execution::par is supported by the C++ library - NO

```

This is despite my compiler supporting this functionality. It just needs to link against `libtbb` (via `-ltbb` linker option) for linking to succeed.

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