#define _EXECINFO_H_ 1
#include <sys/cdefs.h>
+#include <Availability.h>
__BEGIN_DECLS
-int backtrace(void**,int);
-char** backtrace_symbols(void* const*,int);
-void backtrace_symbols_fd(void* const*,int,int);
+int backtrace(void**,int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);
+char** backtrace_symbols(void* const*,int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);
+void backtrace_symbols_fd(void* const*,int,int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);
__END_DECLS