--- ArduinoLib/Makefile.orig	2025-04-11 14:48:58 UTC
+++ ArduinoLib/Makefile
@@ -4,7 +4,7 @@
 
 .PHONY: default
 
-CXX = g++
+CXX ?= g++
 
 OBJS = \
 	Adafruit_BME280.o \