<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/113332>113332</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
             _GLIBCXX_USE_C99_COMPLEX_ARC not set to 0 in Headers/cuda_wrappers/complex
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            libc++
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          VinInn
      </td>
    </tr>
</table>

<pre>
    If I compile  with
clang++ --offload-arch=native -xhip -march=native -stdlib=libstdc++ oneComplex_hip.cpp
I get things like
lld: error: undefined hidden symbol: cacosh
>>> referenced by /tmp/innocent/oneComplex_hip-gfx900-400399.o:(std::__complex_acosh(double complex))
>>> referenced by /tmp/innocent/oneComplex_hip-gfx900-400399.o:(std::__complex_acosh(double complex))

clang++: error: amdgcn-link command failed with exit code 1 (use -v to see invocation)

while it does not complain for sin, sqrt,log etc
this is most probably related to a bug I submitted to gcc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117151

If I add to that file (Headers/cuda_wrappers/complex)
#ifdef FIXC99
#warning fixing C99_ARC
#pragma push_macro("_GLIBCXX_USE_C99_COMPLEX_ARC")
#define _GLIBCXX_USE_C99_COMPLEX_ARC 0
#endif

it compiles and run
clang++ --offload-arch=native -xhip -march=native -stdlib=libstdc++ oneComplex_hip.cpp -DFIXC99
In file included from <built-in>:1:
In file included from /afs/cern.ch/work/i/innocent/public/w5/lib/clang/20/include/__clang_hip_runtime_wrapper.h:146:
/afs/cern.ch/work/i/innocent/public/w5/lib/clang/20/include/cuda_wrappers/complex:76:2: warning: fixing C99_ARC [-W#warnings]
   76 | #warning fixing C99_ARC

etc...

</pre>
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