[llvm] ccf128e - [gn build] Port 2527b071ba2e

[LLVM GN Syncbot via llvm-commits]

Author: LLVM GN Syncbot
Date: 2025-11-02T18:45:58Z
New Revision: ccf128ee6f21652b8921cfddbd322b8287c9e5ac

URL: https://github.com/llvm/llvm-project/commit/ccf128ee6f21652b8921cfddbd322b8287c9e5ac
DIFF: https://github.com/llvm/llvm-project/commit/ccf128ee6f21652b8921cfddbd322b8287c9e5ac.diff

LOG: [gn build] Port 2527b071ba2e

Added: 
    

Modified: 
    llvm/utils/gn/secondary/libcxx/include/BUILD.gn

Removed: 
    


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diff  --git a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
index c20d2aa033690..9e0b9513a9a1a 100644
--- a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
+++ b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
@@ -1524,6 +1524,7 @@ if (current_toolchain == default_toolchain) {
       "__type_traits/is_valid_expansion.h",
       "__type_traits/is_void.h",
       "__type_traits/is_volatile.h",
+      "__type_traits/is_within_lifetime.h",
       "__type_traits/lazy.h",
       "__type_traits/make_32_64_or_128_bit.h",
       "__type_traits/make_const_lvalue_ref.h",