Check for STRICT_ANSI on non-standard functions, fixes #491

teensy3/avr_functions.h

@@ -95,7 +95,7 @@ static inline void eeprom_update_block(const void *buf, void *addr, uint32_t len
 char * ultoa(unsigned long val, char *buf, int radix);
 char * ltoa(long val, char *buf, int radix);
 
-#if defined(_NEWLIB_VERSION) && (__NEWLIB__ < 2 || __NEWLIB__ == 2 && __NEWLIB_MINOR__ < 2)
+#if defined(__STRICT_ANSI__) || (defined(_NEWLIB_VERSION) && (__NEWLIB__ < 2 || __NEWLIB__ == 2 && __NEWLIB_MINOR__ < 2))
 static inline char * utoa(unsigned int val, char *buf, int radix) __attribute__((always_inline, unused));
 static inline char * utoa(unsigned int val, char *buf, int radix) { return ultoa(val, buf, radix); }
 static inline char * itoa(int val, char *buf, int radix) __attribute__((always_inline, unused));

teensy4/avr_functions.h

@@ -97,7 +97,7 @@ static inline void eeprom_update_block(const void *buf, void *addr, uint32_t len
 char * ultoa(unsigned long val, char *buf, int radix);
 char * ltoa(long val, char *buf, int radix);
 
-#if defined(_NEWLIB_VERSION) && (__NEWLIB__ < 2 || __NEWLIB__ == 2 && __NEWLIB_MINOR__ < 2)
+#if defined(__STRICT_ANSI__) || (defined(_NEWLIB_VERSION) && (__NEWLIB__ < 2 || __NEWLIB__ == 2 && __NEWLIB_MINOR__ < 2))
 static inline char * utoa(unsigned int val, char *buf, int radix) __attribute__((always_inline, unused));
 static inline char * utoa(unsigned int val, char *buf, int radix) { return ultoa(val, buf, radix); }
 static inline char * itoa(int val, char *buf, int radix) __attribute__((always_inline, unused));