From 8f1cb2d0afb430b80a273dc937a0c67fb998d9da Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ga=C3=ABl=20Ecorchard?= <gael.ecorchard@ciirc.cvut.cz>
Date: Tue, 25 Aug 2015 13:44:01 +0200
Subject: [PATCH] Add a comment about CMAKE_TOOLCHAIN_FILE

---
 CMakeLists.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 755e3d2..b77956a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,6 +5,8 @@
 # Description: Arduino CMake example                                          #
 #                                                                             #
 #=============================================================================#
+# The following line must be place before project(...).
+# If it was not there when first calling cmake, remove all cmake generated file.
 set(CMAKE_TOOLCHAIN_FILE cmake/ArduinoToolchain.cmake) # Arduino Toolchain