X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=avahi-common%2Fgccmacro.h;h=dd495022929840c112991161c24d76560f5162a9;hb=9f00e061367adf8889e8faa17553f71f29ef2362;hp=42fb15341cc54d124ec99282d32ba39c3c820842;hpb=4f0a5e7572a4257894b4bfede42c26d65152609e;p=catta

diff --git a/avahi-common/gccmacro.h b/avahi-common/gccmacro.h
index 42fb153..dd49502 100644
--- a/avahi-common/gccmacro.h
+++ b/avahi-common/gccmacro.h
@@ -22,9 +22,25 @@
   USA.
 ***/
 
-#ifdef __GNUC__
+/** \file gccmacro.h Defines some macros for GCC extensions */
+
+#include <avahi-common/cdecl.h>
+
+AVAHI_C_DECL_BEGIN
+
+#if defined(__GNUC__) && (__GNUC__ >= 4) && (__GNUC_MINOR__ >= 3)
+#define AVAHI_GCC_ALLOC_SIZE(x) __attribute__ ((__alloc_size__(x)))
+#define AVAHI_GCC_ALLOC_SIZE2(x,y) __attribute__ ((__alloc_size__(x,y)))
+#else
+/** Macro for usage of GCC's alloc_size attribute */
+#define AVAHI_GCC_ALLOC_SIZE(x)
+#define AVAHI_GCC_ALLOC_SIZE2(x,y)
+#endif
+
+#if defined(__GNUC__) && (__GNUC__ >= 4)
 #define AVAHI_GCC_SENTINEL __attribute__ ((sentinel))
 #else
+/** Macro for usage of GCC's sentinel compilation warnings */
 #define AVAHI_GCC_SENTINEL
 #endif
 
@@ -35,13 +51,26 @@
 #define AVAHI_GCC_PRINTF_ATTR(a,b)
 #endif
 
+/** Same as AVAHI_GCC_PRINTF_ATTR but hard coded to arguments 1 and 2 */
 #define AVAHI_GCC_PRINTF_ATTR12 AVAHI_GCC_PRINTF_ATTR(1,2)
+
+/** Same as AVAHI_GCC_PRINTF_ATTR but hard coded to arguments 2 and 3 */
 #define AVAHI_GCC_PRINTF_ATTR23 AVAHI_GCC_PRINTF_ATTR(2,3)
 
 #ifdef __GNUC__
 #define AVAHI_GCC_NORETURN __attribute__((noreturn))
 #else
+/** Macro for no-return functions */
 #define AVAHI_GCC_NORETURN
 #endif
 
+#ifdef __GNUC__
+#define AVAHI_GCC_UNUSED __attribute__ ((unused))
+#else
+/** Macro for not used parameter */
+#define AVAHI_GCC_UNUSED
+#endif
+
+AVAHI_C_DECL_END
+
 #endif