From e6dfff4a2b3a230ff017b637e6f5446fff72dace Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Thu, 28 Feb 2019 16:10:05 -0500
Subject: add guards to prevent multiple definitions of the same types

---
 mk.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/mk.sh b/mk.sh
index b2c439a0..642d39ca 100644
--- a/mk.sh
+++ b/mk.sh
@@ -72,6 +72,9 @@ get_declaration () {
 		;;
 
 	TYPE|TYPE_LONG|RECORD|FNTYPE)
+		base=$(basename $1 .c)
+		printf '#ifndef __TYPE_%s_DEFINED__\n#define __TYPE_%s_DEFINED__\n' "$base" "$base"
+
 		if grep -q '^#if' $1; then
 			sed -ne '/^#if/,/#endif/p' $1
 		elif grep -qE '^(typedef|struct|union) .*{' $1; then
@@ -81,6 +84,8 @@ get_declaration () {
 		else
 			grep -E '^(typedef|struct|union) ' $1
 		fi
+
+		printf '#endif\n\n'
 		;;
 
 	EXTERN)
-- 
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