[llvm] 87e41cc - [gn build] Port 321c2ea91cb1

[LLVM GN Syncbot via llvm-commits]

Author: LLVM GN Syncbot
Date: 2021-07-08T15:35:54Z
New Revision: 87e41cc4b6c6bf22311f78e30c24ea92836bb021

URL: https://github.com/llvm/llvm-project/commit/87e41cc4b6c6bf22311f78e30c24ea92836bb021
DIFF: https://github.com/llvm/llvm-project/commit/87e41cc4b6c6bf22311f78e30c24ea92836bb021.diff

LOG: [gn build] Port 321c2ea91cb1

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 c0fa80aebc715..d79c88a58f323 100644
--- a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
+++ b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
@@ -297,6 +297,7 @@ if (current_toolchain == default_toolchain) {
       "__utility/rel_ops.h",
       "__utility/swap.h",
       "__utility/to_underlying.h",
+      "__variant/monostate.h",
       "algorithm",
       "any",
       "array",