chore: sdk compiles almost w/o warnings?

lib/amb1_sdk/common/api/platform/platform_stdlib.h

@@ -166,6 +166,7 @@ extern void vPortFree( void *pv );
 	#include "strproc.h"
 	#include "memproc.h"
 	#include "basic_types.h"
+	#include "rand.h"
 #if USE_RTL_ROM_CLIB
 	#include "rtl_lib.h"
 	#include "rom_libc_string.h"
@@ -200,10 +201,10 @@ extern void vPortFree( void *pv );
         #define printf				buffered_printf
 #else
 	#define printf				rtl_printf
-#endif
 	#define sprintf				rtl_sprintf
 	#define snprintf				rtl_snprintf
 	#define vsnprintf				rtl_vsnprintf
+#endif
 #else
 	#define printf					DiagPrintf
 	#define sprintf(fmt, arg...)			DiagSPrintf((u8*)fmt, ##arg)
@@ -233,7 +234,9 @@ extern void vPortFree( void *pv );
 	#define atoi(str)					prvAtoi(str)	
 	#define strpbrk(cs, ct)			_strpbrk(cs, ct)		// for B-cut ROM
 #if defined (__GNUC__)
-	#undef sscanf
+	// #undef sscanf
+	// #define sscanf					_sscanf_patch
+	extern int _sscanf_patch(const char *s, const char *template, ...);
 	#define sscanf					_sscanf_patch
 	#define rand					Rand
 #endif