From c2b2062de62267d47a8267b93410d2535eb0127e Mon Sep 17 00:00:00 2001
From: Jason2866 <24528715+Jason2866@users.noreply.github.com>
Date: Sat, 1 Jan 2022 18:08:50 +0100
Subject: [PATCH] last C3 warning

---
 pio-tools/add_c_flags.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pio-tools/add_c_flags.py b/pio-tools/add_c_flags.py
index c93059b36..0c39e777f 100644
--- a/pio-tools/add_c_flags.py
+++ b/pio-tools/add_c_flags.py
@@ -1,4 +1,4 @@
 Import("env")
 
 # General options that are passed to the C compiler (C only; not C++).
-env.Append(CFLAGS=["-Wno-discarded-qualifiers"])
+env.Append(CFLAGS=["-Wno-discarded-qualifiers", "-Wno-implicit-function-declaration"])