[beken-72xx] Fix linking with SDK framework

builder/arduino-common.py

@@ -15,6 +15,7 @@ assert isdir(LT_ARDUINO_DIR)
 # Flags
 env.Append(
     CPPDEFINES=[
+        ("LIBRETUYA_ARDUINO", "1"),
         ("ARDUINO", 10812),
         "ARDUINO_SDK",
     ],

platform/beken-72xx/fixups/arch_main.c

@@ -26,7 +26,7 @@ void entry_set_world_flag(void) {
 
 extern void main(void);
 
-#ifdef LIBRETUYA
+#ifdef LIBRETUYA_ARDUINO
 // beken-72xx has printf_port.h
 extern void __wrap_bk_printf_disable();
 extern void __wrap_bk_printf_enable();
@@ -38,7 +38,7 @@ void entry_main(void) {
 	entry_set_world_flag();
 #endif
 	// suppress all output during initialization
-#if LIBRETUYA
+#if LIBRETUYA_ARDUINO
 	__wrap_bk_printf_disable();
 #endif
 	// read reboot cause into bk_misc_get_start_type()
@@ -57,7 +57,7 @@ void entry_main(void) {
 	bk_wdg_reload();
 #endif
 	// enable bk_printf output again
-#if LIBRETUYA
+#if LIBRETUYA_ARDUINO
 	__wrap_bk_printf_enable();
 #endif
 	// run the app

platform/beken-72xx/fixups/inc/uart_pub.h

@@ -4,7 +4,7 @@
 
 #include_next "uart_pub.h"
 
-#ifdef LIBRETUYA
+#ifdef LIBRETUYA_ARDUINO
 // make uart.c call __wrap_bk_printf() instead of bk_printf()
 // standard wrapping does not work in this case, as bk_printf()
 // is implemented in the same translation unit