[llvm] f849a3a - [gn build] Port 2a8f9a5e95de

[LLVM GN Syncbot via llvm-commits]

Author: LLVM GN Syncbot
Date: 2022-02-14T19:57:48Z
New Revision: f849a3adce71cb31612547b4fcea333da2e1fbe8

URL: https://github.com/llvm/llvm-project/commit/f849a3adce71cb31612547b4fcea333da2e1fbe8
DIFF: https://github.com/llvm/llvm-project/commit/f849a3adce71cb31612547b4fcea333da2e1fbe8.diff

LOG: [gn build] Port 2a8f9a5e95de

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 042c573c85121..42668ebb18cec 100644
--- a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
+++ b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
@@ -456,6 +456,7 @@ if (current_toolchain == default_toolchain) {
       "__utility/swap.h",
       "__utility/to_underlying.h",
       "__utility/transaction.h",
+      "__utility/unreachable.h",
       "__variant/monostate.h",
       "algorithm",
       "any",