[gn build] Port 7e1ee1e10dc0

GitOrigin-RevId: 72261627f60ea78fe5e778030a3c7e45705d9faa
diff --git a/utils/gn/secondary/libcxx/include/BUILD.gn b/utils/gn/secondary/libcxx/include/BUILD.gn
index c94ba37..dbc5da7 100644
--- a/utils/gn/secondary/libcxx/include/BUILD.gn
+++ b/utils/gn/secondary/libcxx/include/BUILD.gn
@@ -400,6 +400,7 @@
       "__coroutine/trivial_awaitables.h",
       "__debug",
       "__debug_utils/randomize_range.h",
+      "__debug_utils/strict_weak_ordering_check.h",
       "__exception/exception.h",
       "__exception/exception_ptr.h",
       "__exception/nested_exception.h",