1 files changed, 8 insertions, 0 deletions
diff --git a/src/defs.h b/src/defs.h
index 66bffb4..1ed2282 100644
--- a/src/defs.h
+++ b/src/defs.h
@@ -8,8 +8,16 @@
 #ifndef DEFS_H_
 #define DEFS_H_
 
+#ifndef NULL
+#define NULL 0
+#endif
+
+#ifndef TRUE
 #define TRUE 1
+#endif
+#ifndef FALSE
 #define FALSE 0
+#endif
 
 typedef unsigned char u8;
 typedef signed char s8;