[all-commits] [llvm/llvm-project] cde111: [flang-rt][unittests] Define MAP_ANONYMOUS fallbac...

[Daniel Chen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: cde11153fcbda7fce2299c6fe463f21cfb4a6208
      https://github.com/llvm/llvm-project/commit/cde11153fcbda7fce2299c6fe463f21cfb4a6208
  Author: Daniel Chen <cdchen at ca.ibm.com>
  Date:   2026-09-21 (Mon, 21 Sep 2026)

  Changed paths:
    M flang-rt/unittests/Runtime/Assign.cpp

  Log Message:
  -----------
  [flang-rt][unittests] Define MAP_ANONYMOUS fallback for AIX in Assign tests (#224675)

We ran into 
```
flang-rt/unittests/Runtime/Assign.cpp:497:21: error: use of undeclared identifier 'MAP_ANONYMOUS'
  497 |       MAP_PRIVATE | MAP_ANONYMOUS, -1, 0)};
  ```
  
On AIX, `flang-rt` is built with `_XOPEN_SOURCE=700` and without `_ALL_SOURCE`, which prevents `<sys/mman.h> `from exposing `MAP_ANONYMOUS` / `MAP_ANON`. Provide a fallback definition so mmap unit tests introduced in PR #222101 compile successfully on AIX.



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