From 0aa4f07e93daa64889833b1ae20dca659985bae7 Mon Sep 17 00:00:00 2001
From: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
Date: Tue, 21 Sep 2021 13:08:41 +0200
Subject: [PATCH] libc/sched/sched_backtrace.c: Include unistd.h to avoid
 warning about getpid function.

Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
---
 libs/libc/sched/sched_backtrace.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libs/libc/sched/sched_backtrace.c b/libs/libc/sched/sched_backtrace.c
index bc318cd02d3..5c35bdac1b0 100644
--- a/libs/libc/sched/sched_backtrace.c
+++ b/libs/libc/sched/sched_backtrace.c
@@ -25,6 +25,7 @@
 #include <nuttx/config.h>
 
 #include <sys/types.h>
+#include <unistd.h>
 #include <execinfo.h>
 #include <unwind.h>