Fix Mac build

Broken-by: 75c121f07a

diff --git a/src/OS/os.h-Darwin b/src/OS/os.h-Darwin
index f4087404e14a8769191741f5543f516aa43343e3..f3f22f084ac9d9791237402442b8ed8b8fcd8ffe 100644 (file)
--- a/src/OS/os.h-Darwin
+++ b/src/OS/os.h-Darwin
@@ -45,4 +45,7 @@ updating Exim to use the newer interface. */
 /* default is non-const */
 #define ICONV_ARG2_TYPE const char **
 
+/* seems arpa/nameser.h does not define this */
+#define NS_MAXMSG 65535
+
 /* End */