diff --git a/lib/framework/macros.h b/lib/framework/macros.h
index 18f8a8da7f5..08945d68824 100644
--- a/lib/framework/macros.h
+++ b/lib/framework/macros.h
@@ -23,8 +23,13 @@
 #ifndef MACROS_H
 #define MACROS_H
 
+#ifndef MIN
 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
+#endif
+
+#ifndef MAX
 #define MAX(a, b) (((a) > (b)) ? (a) : (b))
+#endif
 
 #define ABSDIF(a,b) ((a)>(b) ? (a)-(b) : (b)-(a))