From 9bbb342f5d9ad5dc75486fd35ada8e287ba19299 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Mon, 15 Aug 2022 13:03:17 -0700
Subject: [PATCH] setserial.c: Add needed system headers for ioctl() and
 close() calls

Add int return type for main() function

Fixes
error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
error: call to undeclared function 'close'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declarat
ion]

Upstream-Status: Submitted [https://sourceforge.net/p/setserial/discussion/7060/thread/95d874c12c/]
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 setserial.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/setserial.c b/setserial.c
index bfda8fd..6a95513 100644
--- a/setserial.c
+++ b/setserial.c
@@ -16,6 +16,8 @@
 #include <termios.h>
 #include <string.h>
 #include <errno.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
 
 #ifdef HAVE_ASM_IOCTLS_H
 #include <asm/ioctls.h>
@@ -715,7 +717,7 @@ fprintf(stderr, "\t* port\t\tset the I/O port\n");
 	exit(1);
 }
 
-main(int argc, char **argv)
+int main(int argc, char **argv)
 {
 	int	get_flag = 0, wild_intr_flag = 0;
 	int	c;