Don't define true & false with stdbool.h included

teensy/wiring.h

 extern "C"{
 #endif
 
-#define true 1
-#define false 0
-
 #define PI 3.1415926535897932384626433832795
 #define HALF_PI 1.5707963267948966192313216916398
 #define TWO_PI 6.283185307179586476925286766559
 
 #define bit(b) (1UL << (b))
 
-typedef uint8_t boolean;
+typedef bool boolean;
 typedef uint8_t byte;
 
 unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout);

teensy3/wiring.h

 typedef bool boolean;
 #else
 typedef uint8_t boolean;
-#define false 0
-#define true (!false)
 #endif
 
 #endif

teensy4/wiring.h

 typedef bool boolean;
 #else
 typedef uint8_t boolean;
-#define false 0
-#define true (!false)
 #endif
 
 #endif