[gn build] Port d1cce66469d0
diff --git a/llvm/utils/gn/secondary/clang/lib/Sema/BUILD.gn b/llvm/utils/gn/secondary/clang/lib/Sema/BUILD.gn
index 256bab6..43b8979 100644
--- a/llvm/utils/gn/secondary/clang/lib/Sema/BUILD.gn
+++ b/llvm/utils/gn/secondary/clang/lib/Sema/BUILD.gn
@@ -99,6 +99,7 @@
     "SemaOpenACC.cpp",
     "SemaOpenACCAtomic.cpp",
     "SemaOpenACCClause.cpp",
+    "SemaOpenACCClauseAppertainment.cpp",
     "SemaOpenCL.cpp",
     "SemaOpenMP.cpp",
     "SemaOverload.cpp",