Handle the absence of IP_MTU_DISCOVER

2012-02-26 01:28:06 -05:00
parent e8d14d35a6
commit a1671bcf3b
2 changed files with 7 additions and 0 deletions
@@ -89,6 +89,11 @@ AC_CHECK_DECL([htobe64],
     [[#include <libkern/OSByteOrder.h>]])],
  [[#include <endian.h>]])

+AC_CHECK_DECL([IP_MTU_DISCOVER],
+  [AC_DEFINE([HAVE_IP_MTU_DISCOVER], [1],
+     [Define if IP_MTU_DISCOVER is a valid sockopt.])],
+  , [[#include <netinet/ip.h>]])
+
 # Checks for protobuf
 PKG_CHECK_MODULES([protobuf], [protobuf])