[libcxx-commits] [libcxx] [libc++][C++03] Copy the LLVM 19 headers (PR #108999)

[via libcxx-commits]

zeroomega wrote:

We are seeing runtime build failures on our bot after this patch landed:

```
[1223/1598](61) Generate the mapping file for include-what-you-use
FAILED: /b/s/w/ir/x/w/llvm_build/include/c++/v1/libcxx.imp 
cd /b/s/w/ir/x/w/llvm_build/runtimes/runtimes-x86_64-pc-windows-msvc-bins/libcxx/include && /b/s/w/ir/cipd_bin_packages/cpython3/bin/python3.8 /b/s/w/ir/x/w/llvm-llvm-project/libcxx/utils/generate_iwyu_mapping.py -o /b/s/w/ir/x/w/llvm_build/include/c++/v1/libcxx.imp
Traceback (most recent call last):
  File "/b/s/w/ir/x/w/llvm-llvm-project/libcxx/utils/generate_iwyu_mapping.py", line 92, in <module>
    main(sys.argv[1:])
  File "/b/s/w/ir/x/w/llvm-llvm-project/libcxx/utils/generate_iwyu_mapping.py", line 82, in main
    raise RuntimeError(f"{header}: Header {public} is not a valid header")
RuntimeError: __cxx03/__algorithm/adjacent_find.h: Header cxx03 is not a valid header
```

Failing task: https://ci.chromium.org/ui/p/fuchsia/builders/toolchain.ci/clang-linux-x64/b8735245579486612113/overview
Could you revert this change please?

https://github.com/llvm/llvm-project/pull/108999