From 3cc2a61c553d138778a6ec1dd84cd042ce834b4e Mon Sep 17 00:00:00 2001
From: Michael Forney <mforney@mforney.org>
Date: Tue, 10 Apr 2018 16:24:12 -0700
Subject: [PATCH] m4: Add missing includes

---
 usr.bin/m4/look.c   | 1 +
 usr.bin/m4/main.c   | 1 +
 usr.bin/m4/parser.y | 1 +
 3 files changed, 3 insertions(+)

diff --git a/usr.bin/m4/look.c b/usr.bin/m4/look.c
index ac504570a9f..5feb0413cd6 100644
--- a/usr.bin/m4/look.c
+++ b/usr.bin/m4/look.c
@@ -38,6 +38,7 @@
  * by: oz
  */
 
+#include <sys/cdefs.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>
diff --git a/usr.bin/m4/main.c b/usr.bin/m4/main.c
index f1b8fa5a55b..4e664c0a50b 100644
--- a/usr.bin/m4/main.c
+++ b/usr.bin/m4/main.c
@@ -39,6 +39,7 @@
  * by: oz
  */
 
+#include <sys/cdefs.h>
 #include <assert.h>
 #include <signal.h>
 #include <err.h>
diff --git a/usr.bin/m4/parser.y b/usr.bin/m4/parser.y
index 5b46d261a9a..fedded1e44c 100644
--- a/usr.bin/m4/parser.y
+++ b/usr.bin/m4/parser.y
@@ -17,6 +17,7 @@
  */
 #include <math.h>
 #include <stdint.h>
+#include <stdlib.h>
 #define YYSTYPE	int32_t
 extern int32_t end_result;
 extern int yylex(void);
-- 
2.22.0