From 6c130bcbabf730f11e1cdd7917eaf955044a92f7 Mon Sep 17 00:00:00 2001
From: Kamil Gawor <Kamil.Gawor@nordicsemi.no>
Date: Mon, 15 Apr 2024 11:47:43 +0200
Subject: [PATCH] ipc_service: backends: icbmsg: Fix strnlen warnings

This fixes warnings when building with icbmsg
backend for IPC service by defining
_POSIX_C_SOURCE 200809L in source file.

Signed-off-by: Kamil Gawor <Kamil.Gawor@nordicsemi.no>
---
 subsys/ipc/ipc_service/backends/ipc_icbmsg.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/subsys/ipc/ipc_service/backends/ipc_icbmsg.c b/subsys/ipc/ipc_service/backends/ipc_icbmsg.c
index da2db4ccbc8..c7cb5f8ea34 100644
--- a/subsys/ipc/ipc_service/backends/ipc_icbmsg.c
+++ b/subsys/ipc/ipc_service/backends/ipc_icbmsg.c
@@ -75,6 +75,9 @@
  * data messages, it calls bound endpoint and it is ready to send data.
  */
 
+#undef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200809L /* For strnlen() */
+
 #include <string.h>
 
 #include <zephyr/logging/log.h>