From 92a7146370d6d75b2615e039f0b4191b34f5ec49 Mon Sep 17 00:00:00 2001
From: Alex Hope-O'Connor <alex.hope.oconnor@pomonaqld.au>
Date: Wed, 26 Aug 2026 21:45:10 +1000
Subject: [PATCH] test: use C linkage for DS18B20 entry points

---
 test/test_ds18b20/test_main.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/test/test_ds18b20/test_main.cpp b/test/test_ds18b20/test_main.cpp
index 27f37c0eb..ff2db2c9e 100644
--- a/test/test_ds18b20/test_main.cpp
+++ b/test/test_ds18b20/test_main.cpp
@@ -37,6 +37,7 @@ void test_recognizes_resolution_configuration()
     TEST_ASSERT_FALSE(ds18b20::hasResolution(scratchpad, 12));
 }
 
+extern "C" {
 void setup()
 {
     UNITY_BEGIN();
@@ -48,3 +49,4 @@ void setup()
 }
 
 void loop() {}
+}