[gn build] (semi-manually) port 4247381e26dd

diff --git a/llvm/utils/gn/secondary/libcxx/src/BUILD.gn b/llvm/utils/gn/secondary/libcxx/src/BUILD.gn
index e91d9ce..bbdfad6 100644 (file)
--- a/llvm/utils/gn/secondary/libcxx/src/BUILD.gn
+++ b/llvm/utils/gn/secondary/libcxx/src/BUILD.gn
@@ -176,7 +176,11 @@ if (target_os == "solaris") {
   cxx_sources += [ "support/solaris/xlocale.cpp" ]
 }
 if (target_os == "zos") {
-  cxx_sources += [ "support/ibm/xlocale_zos.cpp" ]
+  cxx_sources += [
+    "support/ibm/mbsnrtowcs.cpp",
+    "support/ibm/wcsnrtombs.cpp",
+    "support/ibm/xlocale_zos.cpp",
+  ]
 }
 if (libcxx_enable_debug_mode) {
   cxx_sources += [ "debug.cpp" ]