[clang] [clang] Extend clang's <limits.h> to define *LONG_LONG*_ macros for bionic (PR #115406)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: None (ZijunZhaoCCK)

<details>
<summary>Changes</summary>

*LONG_LONG*_ macros are not GNU-only extensions any more. Bionic also defines them.

---
Full diff: https://github.com/llvm/llvm-project/pull/115406.diff


1 Files Affected:

- (modified) clang/lib/Headers/limits.h (+5-4) 


``````````diff
diff --git a/clang/lib/Headers/limits.h b/clang/lib/Headers/limits.h
index 56dffe568486cc..9879fe81faa651 100644
--- a/clang/lib/Headers/limits.h
+++ b/clang/lib/Headers/limits.h
@@ -111,11 +111,12 @@
 #define ULLONG_MAX (__LONG_LONG_MAX__*2ULL+1ULL)
 #endif
 
-/* LONG_LONG_MIN/LONG_LONG_MAX/ULONG_LONG_MAX are a GNU extension.  It's too bad
-   that we don't have something like #pragma poison that could be used to
-   deprecate a macro - the code should just use LLONG_MAX and friends.
+/* LONG_LONG_MIN/LONG_LONG_MAX/ULONG_LONG_MAX are a GNU extension. Bionic also
+   defines them. It's too bad that we don't have something like #pragma poison
+   that could be used to deprecate a macro - the code should just use LLONG_MAX
+   and friends.
  */
-#if defined(__GNU_LIBRARY__) ? defined(__USE_GNU) : !defined(__STRICT_ANSI__)
+#if (defined(__GNU_LIBRARY__) ? defined(__USE_GNU) : !defined(__STRICT_ANSI__)) || defined(__BIONIC__)
 
 #undef   LONG_LONG_MIN
 #undef   LONG_LONG_MAX

``````````

</details>


https://github.com/llvm/llvm-project/pull/115406