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)
#define AVAHI_GCC_SENTINEL __attribute__ ((sentinel))
#else
+/** Macro for usage of GCC's sentinel compilation warnings */
#define AVAHI_GCC_SENTINEL
#endif
#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