true and false may already be defined

2017-01-02 22:09:05 -05:00
parent cdfed79a8d
commit 137d36cce5
1 changed files with 2 additions and 0 deletions
--- a/grbl/nuts_bolts.h
+++ b/grbl/nuts_bolts.h
@@ -22,8 +22,10 @@
 #ifndef nuts_bolts_h
 #define nuts_bolts_h

+#ifndef false
 #define false 0
 #define true 1
+#endif

 #define SOME_LARGE_VALUE 1.0E+38