From 0587f5b9647ff8bd065659425072dc7560d4ea12 Mon Sep 17 00:00:00 2001
From: Simon Arlott <70171+nomis@users.noreply.github.com>
Date: Sat, 17 Aug 2019 19:07:37 +0100
Subject: [PATCH] Add __attribute__((unused)) to generated test code (#2906)
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Without this, the compiler will generate unused parameter warnings in
the native version:

test/output_export.cpp: In function ‘void output_start(unsigned int)’:
test/output_export.cpp:6:32: error: unused parameter ‘baudrate’ [-Werror=unused-parameter]
 void output_start(unsigned int baudrate)
                                ^~~~~~~~
cc1plus: all warnings being treated as errors
---
 platformio/commands/test/processor.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/platformio/commands/test/processor.py b/platformio/commands/test/processor.py
index e1a141c4..085ffb2c 100644
--- a/platformio/commands/test/processor.py
+++ b/platformio/commands/test/processor.py
@@ -148,7 +148,11 @@ class TestProcessorBase(object):
             "",
             "$object",
             "",
+            "#ifdef __GNUC__",
+            "void output_start(unsigned int baudrate __attribute__((unused)))",
+            "#else",
             "void output_start(unsigned int baudrate)",
+            "#endif",
             "{",
             "    $begin;",
             "}",