New printf/scanf attribute helper macros

git-svn-id: svn+ssh://svn.code.sf.net/p/mingw-w64/code/trunk@5538 4407c894-4637-0410-b4f5-ada5f102cad1

mingw-w64-headers/crt/ChangeLog

diff --git a/mingw-w64-headers/crt/ChangeLog b/mingw-w64-headers/crt/ChangeLog
index 99f00f6..3ebc9fe 100644
--- a/mingw-w64-headers/crt/ChangeLog
+++ b/mingw-w64-headers/crt/ChangeLog
@@ -1,5 +1,11 @@
 2013-01-12  Jonathan Yong  <jon_y@users.sourceforge.net>
 
+	* _mingw_mac.h: New __MINGW_MS_PRINTF helper macro.
+	Likewise for __MINGW_MS_SCANF, __MINGW_GNU_PRINTF and
+	__MINGW_GNU_SCANF.
+
+2013-01-12  Jonathan Yong  <jon_y@users.sourceforge.net>
+
 	* stdlib.h: Define __USE_MINGW_STRTOX if __USE_MINGW_ANSI_STDIO in use.
 	(strtod): Alias to __mingw_strtod if __USE_MINGW_STRTOX.
 	(strtof): Likewise to __mingw_strtof.

mingw-w64-headers/crt/_mingw_mac.h

diff --git a/mingw-w64-headers/crt/_mingw_mac.h b/mingw-w64-headers/crt/_mingw_mac.h
index 0d86c76..447916f 100644
--- a/mingw-w64-headers/crt/_mingw_mac.h
+++ b/mingw-w64-headers/crt/_mingw_mac.h
@@ -229,6 +229,11 @@
 # define __MINGW_ATTRIB_DEPRECATED_SEC_WARN
 #endif
 
+#define __MINGW_MS_PRINTF(__format,__args)  __attribute__((__format__(ms_printf, __format,__args)))
+#define __MINGW_MS_SCANF(__format,__args)   __attribute__((__format__(ms_scanf,  __format,__args)))
+#define __MINGW_GNU_PRINTF(__format,__args) __attribute__((__format__(gnu_printf,__format,__args)))
+#define __MINGW_GNU_SCANF(__format,__args)  __attribute__((__format__(gnu_scanf, __format,__args)))
+
 #undef __mingw_ovr
 #ifdef __cplusplus
 #define __mingw_ovr  inline __cdecl