v4.19.13 snapshot.
diff --git a/arch/um/drivers/xterm.h b/arch/um/drivers/xterm.h
new file mode 100644
index 0000000..56b9c4a
--- /dev/null
+++ b/arch/um/drivers/xterm.h
@@ -0,0 +1,12 @@
+/* 
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __XTERM_H__
+#define __XTERM_H__
+
+extern int xterm_fd(int socket, int *pid_out);
+
+#endif
+