[llvm-branch-commits] [libcxx] release/19.x: Guard an include of `<ostream>` in `<chrono>` with availability macro (#108429) (PR #108515)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libcxx

Author: None (llvmbot)

<details>
<summary>Changes</summary>

Backport 127c34948bd54e92ef2ee544e8bc42acecf321ad

Requested by: @<!-- -->var-const

---
Full diff: https://github.com/llvm/llvm-project/pull/108515.diff


1 Files Affected:

- (modified) libcxx/include/chrono (+1-1) 


``````````diff
diff --git a/libcxx/include/chrono b/libcxx/include/chrono
index 990c415ec2e972..7bec5e5a26ef4a 100644
--- a/libcxx/include/chrono
+++ b/libcxx/include/chrono
@@ -1015,8 +1015,8 @@ constexpr chrono::year                                  operator ""y(unsigned lo
 #  include <charconv>
 #  if !defined(_LIBCPP_HAS_NO_LOCALIZATION)
 #    include <locale>
+#    include <ostream>
 #  endif
-#  include <ostream>
 #endif
 
 #endif // _LIBCPP_CHRONO

``````````

</details>


https://github.com/llvm/llvm-project/pull/108515