[gn build] Port 3df094d31eac

diff --git a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
index ad26d40..ab85e44 100644 (file)
--- a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
+++ b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
@@ -160,6 +160,7 @@ if (current_toolchain == default_toolchain) {
       "__charconv/from_chars_result.h",
       "__charconv/to_chars_result.h",
       "__compare/common_comparison_category.h",
+      "__compare/compare_three_way.h",
       "__compare/compare_three_way_result.h",
       "__compare/is_eq.h",
       "__compare/ordering.h",