From 571fb940da93f8f2143941f0e5d35650369a5512 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.i.king@gmail.com>
Date: Wed, 16 Aug 2023 18:12:20 +0100
Subject: [PATCH] Fix missing <unistd.h> header for sleep(3) definition
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Clean up build warning:
src/calibrate.c: In function ‘Calibrate’:
src/calibrate.c:32:9: warning: implicit declaration of function ‘sleep’ [-Wimplicit-function-declaration]
   32 |         sleep(1);

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
---
 src/calibrate.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/calibrate.c b/src/calibrate.c
index e4de248f..d52898e3 100644
--- a/src/calibrate.c
+++ b/src/calibrate.c
@@ -4,6 +4,7 @@
 //###########################################################################################################
 
 #include <stdio.h>
+#include <unistd.h>
 
 typedef unsigned long long uint64_t;