X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/cd59ab18b06626887aecef760c416ae7936924da..53947857fdb3c00bb673f6d2ac326dc4ccf01c6e:/src/src/mytypes.h

diff --git a/src/src/mytypes.h b/src/src/mytypes.h
index abf1f5333..ade294e5d 100644
--- a/src/src/mytypes.h
+++ b/src/src/mytypes.h
@@ -1,5 +1,3 @@
-/* $Cambridge: exim/src/src/mytypes.h,v 1.7 2009/11/16 19:50:37 nm4 Exp $ */
-
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
@@ -31,10 +29,12 @@ local_scan.h includes it and exim.h includes them both (to get this earlier). */
 /* If gcc is being used to compile Exim, we can use its facility for checking
 the arguments of printf-like functions. This is done by a macro. */
 
-#ifdef __GNUC__
+#if defined(__GNUC__) || defined(__clang__)
 #define PRINTF_FUNCTION(A,B)  __attribute__((format(printf,A,B)))
+#define ARG_UNUSED  __attribute__((__unused__))
 #else
 #define PRINTF_FUNCTION(A,B)
+#define ARG_UNUSED  /**/
 #endif