Removed = char from #define. See arduino#1792 (comment)

Federico Fissore · Federico Fissore · commit 5746ffaa4ba3 · 2014-01-06T18:20:37.000+01:00
diff --git a/cores/arduino/wiring_constants.h b/cores/arduino/wiring_constants.h
@@ -38,7 +38,7 @@ extern "C"{
 #define TWO_PI 6.283185307179586476925286766559
 #define DEG_TO_RAD 0.017453292519943295769236907684886
 #define RAD_TO_DEG 57.295779513082320876798154814105
-#define EULER = 2.718281828459045235360287471352
+#define EULER 2.718281828459045235360287471352
 
 #define SERIAL  0x0
 #define DISPLAY 0x1
