diff --git a/lib/bind/port_after.h.in b/lib/bind/port_after.h.in
index 06a421592e..780e72baab 100644
--- a/lib/bind/port_after.h.in
+++ b/lib/bind/port_after.h.in
@@ -64,4 +64,12 @@ struct sockaddr_in6 {
 #define MAXHOSTNAMELEN 256
 #endif
 
+#ifndef MIN
+#define MIN(x,y) (((x) <= (y)) ? (x) : (y))
+#endif
+
+#ifndef MAX
+#define MAX(x,y) (((x) >= (y)) ? (x) : (y))
+#endif
+
 #endif