/** \file gccmacro.h Defines some macros for GCC extensions */
-#ifdef __GNUC__
+#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_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