From 20e53cdcbf9be260eb201c9744b7c3ff0a0547c0 Mon Sep 17 00:00:00 2001
From: Chloe Bethel <chloe@9net.org>
Date: Mon, 28 Jul 2025 21:24:56 +0100
Subject: [PATCH] stm32wl: Add a guard against having debug prints turned on
 without PIO_FRAMEWORK_ARDUINO_NANOLIB_FLOAT_PRINTF defined

---
 src/platform/stm32wl/architecture.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/platform/stm32wl/architecture.h b/src/platform/stm32wl/architecture.h
index ac2bbe5d1..e131a0a32 100644
--- a/src/platform/stm32wl/architecture.h
+++ b/src/platform/stm32wl/architecture.h
@@ -32,3 +32,8 @@
 #define SX126X_DIO1 1001
 #define SX126X_RESET 1003
 #define SX126X_BUSY 1004
+
+#if !defined(DEBUG_MUTE) && !defined(PIO_FRAMEWORK_ARDUINO_NANOLIB_FLOAT_PRINTF)
+#error                                                                                                                           \
+    "You MUST enable PIO_FRAMEWORK_ARDUINO_NANOLIB_FLOAT_PRINTF if debug prints are enabled. printf will print uninitialized garbage instead of floats."
+#endif
\ No newline at end of file