[libc-commits] [libc] [libc][NFC] Fix GCC build in __futex_word.h (PR #192078)

[via libc-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libc

Author: Jeff Bailey (kaladron)

<details>
<summary>Changes</summary>

Included __llvm-libc-common.h in __futex_word.h to fix a build failure with GCC.

GCC in C++ mode does not recognize _Alignas without the mapping to alignas provided in __llvm-libc-common.h.

The failure was introduced in commit 91c0fdfe1392.

---
Full diff: https://github.com/llvm/llvm-project/pull/192078.diff


1 Files Affected:

- (modified) libc/include/llvm-libc-types/__futex_word.h (+2) 


``````````diff
diff --git a/libc/include/llvm-libc-types/__futex_word.h b/libc/include/llvm-libc-types/__futex_word.h
index 04023c7e2d5ff..302984a8867dd 100644
--- a/libc/include/llvm-libc-types/__futex_word.h
+++ b/libc/include/llvm-libc-types/__futex_word.h
@@ -9,6 +9,8 @@
 #ifndef LLVM_LIBC_TYPES___FUTEX_WORD_H
 #define LLVM_LIBC_TYPES___FUTEX_WORD_H
 
+#include "__llvm-libc-common.h"
+
 typedef struct {
   // Futex word should be aligned appropriately to allow target atomic
   // instructions. This declaration mimics the internal setup.

``````````

</details>


https://github.com/llvm/llvm-project/pull/192078