v4.19.13 snapshot.
diff --git a/arch/nds32/lib/Makefile b/arch/nds32/lib/Makefile
new file mode 100644
index 0000000..0f98401
--- /dev/null
+++ b/arch/nds32/lib/Makefile
@@ -0,0 +1,3 @@
+lib-y		:= copy_page.o memcpy.o memmove.o   \
+		   memset.o memzero.o \
+		   copy_from_user.o copy_to_user.o clear_user.o