From 80bdd6e61f2e415a1e024a92692a5f3a49bf7afa Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Tue, 1 Oct 2019 21:03:40 -0400
Subject: protect against multiple inclusion

---
 ed.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ed.h b/ed.h
index a9c2e00..bd98908 100644
--- a/ed.h
+++ b/ed.h
@@ -1,3 +1,6 @@
+#ifndef ED_H
+#define ED_H
+
 /*
  * UNG's Not GNU
  *
@@ -101,3 +104,5 @@ void ed_write(intmax_t start, intmax_t end, const char *arg);
 void ed_line_number(intmax_t start, intmax_t end, const char *arg);
 void ed_shell_escape(intmax_t start, intmax_t end, const char *arg);
 void ed_null(intmax_t start, intmax_t end, const char *arg);
+
+#endif
-- 
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